Refactor component terminology to programs in config and manifest

- Updated the terminology from "components" to "programs" across the codebase, including in config loading, saving, and manifest specifications.
- Introduced a new `stacks.py` file to handle lifecycle actions for development stacks, implementing handlers for Python and React Vite stacks.
- Adjusted tests to reflect the new program structure and ensure proper functionality.
- Revised documentation to align with the new terminology and structure, ensuring clarity on the purpose and configuration of programs, services, and jobs.

CLAUDE.md

@@ -9,21 +9,21 @@ Castle is a personal software platform — a monorepo of independent projects
 (services, tools, libraries) managed by the `castle` CLI. The registry
 (`castle.yaml`) has three top-level sections:
 
-- **`components:`** — Software catalog (source, install, tool metadata, build)
+- **`programs:`** — Software catalog (source, install, tool metadata, build)
 - **`services:`** — Long-running daemons (run, expose, proxy, systemd)
 - **`jobs:`** — Scheduled tasks (run, cron schedule, systemd timer)
 
-Each component has a **stack** (development toolchain: python-fastapi,
+Each program has a **stack** (development toolchain: python-fastapi,
 python-cli, react-vite) and a **behavior** (runtime role: daemon, tool,
 frontend). Scheduling, systemd management, and proxying are orthogonal
-operations. Services and jobs reference a component via `component:` for
+operations. Services and jobs reference a program via `component:` for
 description fallthrough.
 
 **Key principle:** Regular projects must never depend on castle. They accept standard
-configuration (data dir, port, URLs) via env vars. Only castle-components (CLI, gateway)
+configuration (data dir, port, URLs) via env vars. Only castle programs (CLI, gateway)
 know about castle internals.
 
-## Creating Components
+## Creating Programs
 
 When creating a new service, tool, or frontend, follow the detailed guides:
 
@@ -37,17 +37,17 @@ When creating a new service, tool, or frontend, follow the detailed guides:
 ```bash
 # Daemon (python-fastapi)
 castle create my-service --stack python-fastapi --description "Does something"
-cd components/my-service && uv sync
+cd programs/my-service && uv sync
 uv run my-service               # starts on auto-assigned port
 castle service enable my-service # register with systemd
 castle gateway reload            # update reverse proxy routes
 
 # Tool (python-cli)
 castle create my-tool --stack python-cli --description "Does something"
-cd components/my-tool && uv sync
+cd programs/my-tool && uv sync
 ```
 
-The `castle create` command scaffolds the project under `components/`,
+The `castle create` command scaffolds the project under `programs/`,
 generates a CLAUDE.md, and registers it in `castle.yaml`.
 
 ## Castle CLI
@@ -55,17 +55,17 @@ generates a CLAUDE.md, and registers it in `castle.yaml`.
 The CLI lives in `cli/` and is installed via `uv tool install --editable cli/`.
 
 ```bash
-castle list                              # List all components
+castle list                              # List all programs, services, and jobs
 castle list --behavior daemon             # Filter by behavior
 castle list --stack python-cli           # Filter by stack
-castle info <component>                  # Show details (--json for machine-readable)
+castle info <name>                       # Show details (--json for machine-readable)
 castle create <name> --stack python-fastapi  # Scaffold new project
-castle deploy [component]                # Deploy to runtime (registry + systemd + Caddyfile)
+castle deploy [name]                     # Deploy to runtime (registry + systemd + Caddyfile)
 castle test [project]                    # Run tests (one or all)
 castle lint [project]                    # Run linter (one or all)
 castle sync                              # Update submodules + uv sync all
-castle run <component>                   # Run component in foreground
-castle logs <component> [-f] [-n 50]     # View component logs
+castle run <name>                        # Run service in foreground
+castle logs <name> [-f] [-n 50]          # View service/job logs
 castle tool list                         # List all tools
 castle tool info <name>                  # Show tool details
 castle gateway start|stop|reload|status  # Manage Caddy reverse proxy
@@ -156,8 +156,8 @@ Services also support: `uv run <service-name>` to start.
 
 ## Key Files
 
-- `castle.yaml` — Component registry (three sections: components, services, jobs)
-- `core/src/castle_core/manifest.py` — Pydantic models (ComponentSpec, ServiceSpec, JobSpec, RunSpec)
+- `castle.yaml` — Registry (three sections: programs, services, jobs)
+- `core/src/castle_core/manifest.py` — Pydantic models (ProgramSpec, ServiceSpec, JobSpec, RunSpec)
 - `core/src/castle_core/config.py` — Config loader (castle.yaml → CastleConfig)
 - `core/src/castle_core/generators/` — Systemd unit and Caddyfile generation
 - `cli/src/castle_cli/templates/scaffold.py` — Project scaffolding templates

TODO.md

@@ -19,3 +19,15 @@
 - Add amplifier to make a component builder
 
 -  What's this about? "I need to add the MQTT env vars to the systemd unit. Let me add them via a drop-in override so the deploy command doesn't overwrite them."
+
+
+- python-tool
+- golang-tool
+- rust-tool
+- bash-tool
+- python-daemon
+- golang-daemon
+- rust-daemon
+- react-frontend
+- python-webserver
+

app/src/components/ComponentCard.tsx

@@ -1,14 +1,13 @@
 import { ExternalLink, Play, RefreshCw, Server, Square, Terminal } from "lucide-react"
 import { Link } from "react-router-dom"
-import type { ComponentSummary, HealthStatus } from "@/types"
+import type { ServiceSummary, HealthStatus } from "@/types"
 import { useServiceAction } from "@/services/api/hooks"
 import { runnerLabel } from "@/lib/labels"
 import { HealthBadge } from "./HealthBadge"
-import { BehaviorBadge } from "./BehaviorBadge"
 import { StackBadge } from "./StackBadge"
 
 interface ComponentCardProps {
-  component: ComponentSummary
+  component: ServiceSummary
   health?: HealthStatus
 }
 
@@ -39,7 +38,6 @@ export function ComponentCard({ component, health }: ComponentCardProps) {
       </div>
 
       <div className="flex gap-1.5 mb-2">
-        <BehaviorBadge behavior={component.behavior} />
         <StackBadge stack={component.stack} />
       </div>
 

app/src/components/ComponentFields.tsx

@@ -1,11 +1,11 @@
 import { useMemo, useState } from "react"
 import { Check, Loader2, Save, Trash2 } from "lucide-react"
-import type { ComponentDetail } from "@/types"
+import type { AnyDetail } from "@/types"
 import { runnerLabel } from "@/lib/labels"
 import { SecretsEditor } from "./SecretsEditor"
 
 interface ComponentFieldsProps {
-  component: ComponentDetail
+  component: AnyDetail
   onSave: (name: string, config: Record<string, unknown>) => Promise<void>
   onDelete?: (name: string) => Promise<void>
 }
@@ -122,7 +122,7 @@ export function ComponentFields({ component, onSave, onDelete }: ComponentFields
         </Field>
       )}
 
-      {(component.managed || port) && (
+      {("managed" in component && component.managed || port) && (
         <Field label="Port">
           <input
             value={port}
@@ -133,7 +133,7 @@ export function ComponentFields({ component, onSave, onDelete }: ComponentFields
         </Field>
       )}
 
-      {(component.managed || healthPath) && (
+      {("managed" in component && component.managed || healthPath) && (
         <Field label="Health path">
           <input
             value={healthPath}
@@ -205,11 +205,13 @@ export function ComponentFields({ component, onSave, onDelete }: ComponentFields
         </Field>
       )}
 
-      <Field label="Systemd">
-        <span className="text-sm text-[var(--muted)]">
-          {component.managed ? "Yes" : "No"}
-        </span>
-      </Field>
+      {"managed" in component && (
+        <Field label="Systemd">
+          <span className="text-sm text-[var(--muted)]">
+            {component.managed ? "Yes" : "No"}
+          </span>
+        </Field>
+      )}
 
       <div className="flex items-center justify-between pt-3 border-t border-[var(--border)]">
         {onDelete ? (

app/src/components/ComponentGrid.tsx

@@ -1,48 +0,0 @@
-import type { ComponentSummary, HealthStatus } from "@/types"
-import { BEHAVIOR_LABELS } from "@/lib/labels"
-import { ComponentCard } from "./ComponentCard"
-
-const BEHAVIOR_ORDER = ["daemon", "tool", "frontend"]
-
-interface ComponentGridProps {
-  components: ComponentSummary[]
-  statuses: HealthStatus[]
-}
-
-export function ComponentGrid({ components, statuses }: ComponentGridProps) {
-  const statusMap = new Map(statuses.map((s) => [s.id, s]))
-
-  // Group by behavior
-  const groups = new Map<string, ComponentSummary[]>()
-  for (const comp of components) {
-    const key = comp.behavior ?? "other"
-    const list = groups.get(key) ?? []
-    list.push(comp)
-    groups.set(key, list)
-  }
-
-  return (
-    <div className="space-y-8">
-      {BEHAVIOR_ORDER.map((key) => {
-        const items = groups.get(key)
-        if (!items?.length) return null
-        return (
-          <section key={key}>
-            <h2 className="text-lg font-semibold mb-3 text-[var(--muted)]">
-              {BEHAVIOR_LABELS[key] ?? key}
-            </h2>
-            <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
-              {items.map((comp) => (
-                <ComponentCard
-                  key={comp.id}
-                  component={comp}
-                  health={statusMap.get(comp.id)}
-                />
-              ))}
-            </div>
-          </section>
-        )
-      })}
-    </div>
-  )
-}

app/src/components/ComponentTable.tsx

@@ -1,24 +1,18 @@
 import { useMemo, useState } from "react"
 import { Link } from "react-router-dom"
-import { ArrowDown, ArrowUp, ArrowUpDown, Plug, Unplug } from "lucide-react"
-import type { ComponentSummary } from "@/types"
-import { useToolAction } from "@/services/api/hooks"
+import { ArrowDown, ArrowUp, ArrowUpDown } from "lucide-react"
+import type { ProgramSummary } from "@/types"
 import { BehaviorBadge } from "./BehaviorBadge"
 import { StackBadge } from "./StackBadge"
+import { ProgramActions } from "./ProgramActions"
 
 interface ComponentTableProps {
-  components: ComponentSummary[]
+  components: ProgramSummary[]
 }
 
-type SortKey = "id" | "stack" | "behavior" | "status"
+type SortKey = "id" | "stack" | "behavior"
 type SortDir = "asc" | "desc"
 
-function installedRank(installed: boolean | null): number {
-  if (installed === false) return 0
-  if (installed === true) return 1
-  return 2
-}
-
 export function ComponentTable({ components }: ComponentTableProps) {
   const [search, setSearch] = useState("")
   const [sortKey, setSortKey] = useState<SortKey>("id")
@@ -53,8 +47,6 @@ export function ComponentTable({ components }: ComponentTableProps) {
           return dir * (a.stack ?? "").localeCompare(b.stack ?? "")
         case "behavior":
           return dir * (a.behavior ?? "").localeCompare(b.behavior ?? "")
-        case "status":
-          return dir * (installedRank(a.installed) - installedRank(b.installed))
         default:
           return 0
       }
@@ -67,7 +59,7 @@ export function ComponentTable({ components }: ComponentTableProps) {
         <input
           value={search}
           onChange={(e) => setSearch(e.target.value)}
-          placeholder="Filter components..."
+          placeholder="Filter programs..."
           className="bg-black/30 border border-[var(--border)] rounded px-3 py-1.5 text-sm focus:outline-none focus:border-[var(--primary)] w-56"
         />
       </div>
@@ -79,21 +71,17 @@ export function ComponentTable({ components }: ComponentTableProps) {
               <SortHeader label="Name" sortKey="id" current={sortKey} dir={sortDir} onSort={toggleSort} />
               <SortHeader label="Stack" sortKey="stack" current={sortKey} dir={sortDir} onSort={toggleSort} />
               <SortHeader label="Behavior" sortKey="behavior" current={sortKey} dir={sortDir} onSort={toggleSort} />
-              <SortHeader label="Status" sortKey="status" current={sortKey} dir={sortDir} onSort={toggleSort} />
               <th className="px-3 py-2 font-medium text-[var(--muted)]">Actions</th>
             </tr>
           </thead>
           <tbody>
             {sorted.map((comp) => (
-              <ComponentRow
-                key={comp.id}
-                component={comp}
-              />
+              <ComponentRow key={comp.id} component={comp} />
             ))}
             {sorted.length === 0 && (
               <tr>
-                <td colSpan={5} className="px-3 py-6 text-center text-[var(--muted)]">
-                  No components match.
+                <td colSpan={4} className="px-3 py-6 text-center text-[var(--muted)]">
+                  No programs match.
                 </td>
               </tr>
             )}
@@ -132,33 +120,12 @@ function SortHeader({
   )
 }
 
-function InstalledBadge({ installed }: { installed: boolean }) {
-  return installed ? (
-    <span className="inline-flex items-center gap-1 text-xs px-1.5 py-0.5 rounded-full bg-green-900/40 text-green-400 border border-green-800/50">
-      <span className="w-1.5 h-1.5 rounded-full bg-green-400" />
-      installed
-    </span>
-  ) : (
-    <span className="inline-flex items-center gap-1 text-xs px-1.5 py-0.5 rounded-full bg-zinc-800/40 text-[var(--muted)] border border-[var(--border)]">
-      <span className="w-1.5 h-1.5 rounded-full bg-zinc-500" />
-      not installed
-    </span>
-  )
-}
-
-function ComponentRow({
-  component,
-}: {
-  component: ComponentSummary
-}) {
-  const isTool = component.installed !== null
-  const { mutate: toolAction, isPending: toolPending } = useToolAction()
-
+function ComponentRow({ component }: { component: ProgramSummary }) {
   return (
     <tr className="border-b border-[var(--border)] last:border-b-0 hover:bg-[var(--card)]/50 transition-colors">
       <td className="px-3 py-2.5">
         <Link
-          to={`/components/${component.id}`}
+          to={`/programs/${component.id}`}
           className="font-medium hover:text-[var(--primary)] transition-colors"
         >
           {component.id}
@@ -176,38 +143,7 @@ function ComponentRow({
         <BehaviorBadge behavior={component.behavior} />
       </td>
       <td className="px-3 py-2.5">
-        {isTool ? (
-          <InstalledBadge installed={component.installed!} />
-        ) : (
-          <span className="text-[var(--muted)]">—</span>
-        )}
-      </td>
-      <td className="px-3 py-2.5">
-        {isTool ? (
-          <div className="flex items-center gap-1">
-            {component.installed ? (
-              <button
-                onClick={() => toolAction({ name: component.id, action: "uninstall" })}
-                disabled={toolPending}
-                className="p-1 rounded hover:bg-red-800/30 text-red-400 transition-colors disabled:opacity-40"
-                title="Uninstall from PATH"
-              >
-                <Unplug size={14} />
-              </button>
-            ) : (
-              <button
-                onClick={() => toolAction({ name: component.id, action: "install" })}
-                disabled={toolPending}
-                className="p-1 rounded hover:bg-green-800/30 text-green-400 transition-colors disabled:opacity-40"
-                title="Install to PATH"
-              >
-                <Plug size={14} />
-              </button>
-            )}
-          </div>
-        ) : (
-          <span className="text-[var(--muted)]">—</span>
-        )}
+        <ProgramActions name={component.id} actions={component.actions} installed={component.installed} compact />
       </td>
     </tr>
   )

app/src/components/LogViewer.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from "react"
+import { useEffect, useImperativeHandle, useRef, useState, forwardRef } from "react"
 import { apiClient } from "@/services/api/client"
 
 interface LogViewerProps {
@@ -7,7 +7,14 @@ interface LogViewerProps {
   follow?: boolean
 }
 
-export function LogViewer({ name, lines = 50, follow = true }: LogViewerProps) {
+export interface LogViewerHandle {
+  clear: () => void
+}
+
+export const LogViewer = forwardRef<LogViewerHandle, LogViewerProps>(function LogViewer(
+  { name, lines = 50, follow = true },
+  ref,
+) {
   const [logs, setLogs] = useState<string[]>([])
   const [connected, setConnected] = useState(false)
   const bottomRef = useRef<HTMLDivElement>(null)
@@ -40,6 +47,8 @@ export function LogViewer({ name, lines = 50, follow = true }: LogViewerProps) {
     return () => es.close()
   }, [name, lines, follow])
 
+  useImperativeHandle(ref, () => ({ clear: () => setLogs([]) }), [])
+
   useEffect(() => {
     bottomRef.current?.scrollIntoView({ behavior: "smooth" })
   }, [logs])
@@ -68,4 +77,4 @@ export function LogViewer({ name, lines = 50, follow = true }: LogViewerProps) {
       </pre>
     </div>
   )
-}
+})

app/src/components/ProgramActions.tsx

@@ -0,0 +1,167 @@
+import { useState } from "react"
+import {
+  FileCheck,
+  FlaskConical,
+  Hammer,
+  Loader2,
+  Plug,
+  ShieldCheck,
+  Sparkles,
+  Unplug,
+  type LucideIcon,
+} from "lucide-react"
+import { useProgramAction } from "@/services/api/hooks"
+
+interface ActionConfig {
+  icon: LucideIcon
+  label: string
+  color: string
+  hoverBg: string
+  borderColor: string
+}
+
+const ACTION_CONFIG: Record<string, ActionConfig> = {
+  build:        { icon: Hammer,       label: "Build",      color: "text-blue-400",   hoverBg: "hover:bg-blue-800/30",   borderColor: "border-blue-800" },
+  test:         { icon: FlaskConical, label: "Test",       color: "text-purple-400", hoverBg: "hover:bg-purple-800/30", borderColor: "border-purple-800" },
+  lint:         { icon: Sparkles,     label: "Lint",       color: "text-amber-400",  hoverBg: "hover:bg-amber-800/30",  borderColor: "border-amber-800" },
+  "type-check": { icon: FileCheck,    label: "Type Check", color: "text-cyan-400",   hoverBg: "hover:bg-cyan-800/30",   borderColor: "border-cyan-800" },
+  check:        { icon: ShieldCheck,  label: "Check All",  color: "text-green-400",  hoverBg: "hover:bg-green-800/30",  borderColor: "border-green-800" },
+  install:      { icon: Plug,         label: "Install",    color: "text-green-400",  hoverBg: "hover:bg-green-800/30",  borderColor: "border-green-800" },
+  uninstall:    { icon: Unplug,       label: "Uninstall",  color: "text-red-400",    hoverBg: "hover:bg-red-800/30",    borderColor: "border-red-800" },
+}
+
+const DEV_ACTIONS = ["build", "test", "lint", "type-check", "check"]
+
+interface ProgramActionsProps {
+  name: string
+  actions: string[]
+  installed?: boolean | null
+  compact?: boolean
+}
+
+function visibleActions(
+  actions: string[],
+  installed: boolean | null | undefined,
+  compact: boolean,
+): string[] {
+  if (compact) {
+    // Table: only install/uninstall based on state
+    if (installed === true) return actions.includes("uninstall") ? ["uninstall"] : []
+    if (installed === false) return actions.includes("install") ? ["install"] : []
+    // null — show install if available (frontends, etc.)
+    return actions.includes("install") ? ["install"] : []
+  }
+
+  // Detail page: dev actions always, install/uninstall based on state
+  const visible: string[] = []
+  for (const a of DEV_ACTIONS) {
+    if (actions.includes(a)) visible.push(a)
+  }
+  if (installed === true) {
+    if (actions.includes("uninstall")) visible.push("uninstall")
+  } else if (installed === false) {
+    if (actions.includes("install")) visible.push("install")
+  } else {
+    // null — show both if available
+    if (actions.includes("install")) visible.push("install")
+    if (actions.includes("uninstall")) visible.push("uninstall")
+  }
+  return visible
+}
+
+export function ProgramActions({ name, actions, installed, compact }: ProgramActionsProps) {
+  const { mutate, isPending } = useProgramAction()
+  const [runningAction, setRunningAction] = useState<string | null>(null)
+  const [output, setOutput] = useState<{ action: string; text: string; ok: boolean } | null>(null)
+
+  const visible = visibleActions(actions, installed, !!compact)
+
+  const handleAction = (action: string) => {
+    setRunningAction(action)
+    setOutput(null)
+    mutate(
+      { name, action },
+      {
+        onSuccess: (data) => {
+          setRunningAction(null)
+          // Show output for dev actions on detail page
+          if (!compact && DEV_ACTIONS.includes(action) && data.output) {
+            setOutput({ action, text: data.output, ok: true })
+          }
+        },
+        onError: (err) => {
+          setRunningAction(null)
+          if (!compact && DEV_ACTIONS.includes(action)) {
+            // Extract detail from API error JSON
+            let text = String(err)
+            try {
+              const parsed = JSON.parse((err as Error).message)
+              text = parsed.detail ?? text
+            } catch {
+              text = (err as Error).message ?? text
+            }
+            setOutput({ action, text, ok: false })
+          }
+        },
+      },
+    )
+  }
+
+  if (visible.length === 0) return null
+
+  return (
+    <div>
+      <div className="flex items-center gap-1 flex-wrap">
+        {visible.map((action) => {
+          const config = ACTION_CONFIG[action]
+          if (!config) return null
+          const Icon = config.icon
+          const isRunning = isPending && runningAction === action
+
+          if (compact) {
+            return (
+              <button
+                key={action}
+                onClick={() => handleAction(action)}
+                disabled={isPending}
+                className={`p-1 rounded ${config.color} ${config.hoverBg} transition-colors disabled:opacity-40`}
+                title={config.label}
+              >
+                {isRunning ? <Loader2 size={14} className="animate-spin" /> : <Icon size={14} />}
+              </button>
+            )
+          }
+
+          return (
+            <button
+              key={action}
+              onClick={() => handleAction(action)}
+              disabled={isPending}
+              className={`flex items-center gap-1.5 px-2 py-1 text-sm rounded border ${config.borderColor} ${config.color} ${config.hoverBg} transition-colors disabled:opacity-40`}
+            >
+              {isRunning ? <Loader2 size={14} className="animate-spin" /> : <Icon size={14} />}
+              {config.label}
+            </button>
+          )
+        })}
+      </div>
+
+      {output && !compact && (
+        <div className={`mt-3 rounded-lg border overflow-hidden ${output.ok ? "border-[var(--border)]" : "border-red-800"}`}>
+          <div className={`flex items-center justify-between px-3 py-1.5 text-xs ${output.ok ? "text-green-400 bg-green-900/20" : "text-red-400 bg-red-900/20"}`}>
+            <span>{ACTION_CONFIG[output.action]?.label ?? output.action} — {output.ok ? "ok" : "error"}</span>
+            <button
+              onClick={() => setOutput(null)}
+              className="text-[var(--muted)] hover:text-[var(--foreground)]"
+            >
+              dismiss
+            </button>
+          </div>
+          <pre className="p-3 text-xs font-mono text-gray-300 overflow-x-auto max-h-64 overflow-y-auto bg-black/40">
+            {output.text}
+          </pre>
+        </div>
+      )}
+    </div>
+  )
+}

app/src/components/ScheduledSection.tsx

@@ -1,12 +1,12 @@
 import { Link } from "react-router-dom"
 import { Play, RefreshCw, Square } from "lucide-react"
-import type { ComponentSummary, HealthStatus } from "@/types"
+import type { JobSummary, HealthStatus } from "@/types"
 import { useServiceAction } from "@/services/api/hooks"
 import { SectionHeader } from "./SectionHeader"
 import { StackBadge } from "./StackBadge"
 
 interface ScheduledSectionProps {
-  jobs: ComponentSummary[]
+  jobs: JobSummary[]
   statuses: HealthStatus[]
 }
 
@@ -38,7 +38,7 @@ export function ScheduledSection({ jobs, statuses }: ScheduledSectionProps) {
   )
 }
 
-function ScheduledRow({ job, health }: { job: ComponentSummary; health?: HealthStatus }) {
+function ScheduledRow({ job, health }: { job: JobSummary; health?: HealthStatus }) {
   const { mutate, isPending } = useServiceAction()
   const isDown = health?.status === "down"
 

app/src/components/ServiceSection.tsx

@@ -1,10 +1,10 @@
 import { useMemo } from "react"
-import type { ComponentSummary, HealthStatus } from "@/types"
+import type { ServiceSummary, HealthStatus } from "@/types"
 import { ComponentCard } from "./ComponentCard"
 import { SectionHeader } from "./SectionHeader"
 
 interface ServiceSectionProps {
-  services: ComponentSummary[]
+  services: ServiceSummary[]
   statuses: HealthStatus[]
 }
 

app/src/components/detail/ConfigPanel.tsx

@@ -3,12 +3,12 @@ import { useNavigate } from "react-router-dom"
 import { useQueryClient } from "@tanstack/react-query"
 import { Check } from "lucide-react"
 import { apiClient } from "@/services/api/client"
-import type { ComponentDetail } from "@/types"
+import type { AnyDetail } from "@/types"
 import { ComponentFields } from "@/components/ComponentFields"
 
 interface ConfigPanelProps {
-  component: ComponentDetail
-  configSection: "services" | "jobs" | "components"
+  component: AnyDetail
+  configSection: "services" | "jobs" | "programs"
   onRefetch: () => void
 }
 
@@ -23,7 +23,7 @@ export function ConfigPanel({ component, configSection, onRefetch }: ConfigPanel
       await apiClient.put(`/config/${configSection}/${compName}`, { config })
       setMessage({ type: "ok", text: "Saved to castle.yaml" })
       onRefetch()
-      qc.invalidateQueries({ queryKey: ["components"] })
+      qc.invalidateQueries({ queryKey: [configSection] })
     } catch (e: unknown) {
       const msg = e instanceof Error ? e.message : String(e)
       setMessage({ type: "error", text: msg })
@@ -33,7 +33,7 @@ export function ConfigPanel({ component, configSection, onRefetch }: ConfigPanel
   const handleDelete = async (compName: string) => {
     try {
       await apiClient.delete(`/config/${configSection}/${compName}`)
-      qc.invalidateQueries({ queryKey: ["components"] })
+      qc.invalidateQueries({ queryKey: [configSection] })
       navigate("/")
     } catch (e: unknown) {
       const msg = e instanceof Error ? e.message : String(e)

app/src/lib/labels.ts

@@ -33,7 +33,7 @@ export const STACK_LABELS: Record<string, string> = {
 export const SECTION_HEADERS: Record<string, { title: string; subtitle: string }> = {
   service: { title: "Services", subtitle: "Long-running processes" },
   scheduled: { title: "Scheduled Jobs", subtitle: "Systemd timers" },
-  component: { title: "Components", subtitle: "Software catalog" },
+  program: { title: "Programs", subtitle: "Software catalog" },
 }
 
 export function runnerLabel(runner: string): string {

app/src/pages/ComponentDetail.tsx

@@ -1,17 +1,16 @@
 import { useParams } from "react-router-dom"
-import { Plug, Unplug } from "lucide-react"
-import { useComponent, useEventStream, useToolDetail, useToolAction } from "@/services/api/hooks"
+import { useProgram, useEventStream, useToolDetail } from "@/services/api/hooks"
 import { runnerLabel } from "@/lib/labels"
 import { DetailHeader } from "@/components/detail/DetailHeader"
 import { ConfigPanel } from "@/components/detail/ConfigPanel"
+import { ProgramActions } from "@/components/ProgramActions"
 
 export function ComponentDetailPage() {
   useEventStream()
   const { name } = useParams<{ name: string }>()
-  const { data: component, isLoading, error, refetch } = useComponent(name ?? "")
+  const { data: component, isLoading, error, refetch } = useProgram(name ?? "")
   const isTool = component?.behavior === "tool"
   const { data: toolDetail } = useToolDetail(isTool ? (name ?? "") : "")
-  const { mutate: toolAction, isPending: toolPending } = useToolAction()
 
   if (isLoading) {
     return (
@@ -23,7 +22,7 @@ export function ComponentDetailPage() {
     return (
       <div className="max-w-3xl mx-auto px-6 py-8">
         <DetailHeader backTo="/" backLabel="Back" name={name ?? ""} />
-        <p className="text-red-400">Component not found</p>
+        <p className="text-red-400">Program not found</p>
       </div>
     )
   }
@@ -32,33 +31,13 @@ export function ComponentDetailPage() {
     <div className="max-w-3xl mx-auto px-6 py-8">
       <DetailHeader
         backTo="/"
-        backLabel="Back to Components"
+        backLabel="Back to Programs"
         name={component.id}
         behavior={component.behavior}
         stack={component.stack}
         source={component.source}
       >
-        {isTool && (
-          <div className="flex items-center gap-2">
-            {component.installed ? (
-              <button
-                onClick={() => toolAction({ name: component.id, action: "uninstall" })}
-                disabled={toolPending}
-                className="flex items-center gap-1.5 px-3 py-1.5 text-sm rounded border border-red-800 text-red-400 hover:bg-red-800/20 transition-colors disabled:opacity-40"
-              >
-                <Unplug size={14} /> Uninstall
-              </button>
-            ) : (
-              <button
-                onClick={() => toolAction({ name: component.id, action: "install" })}
-                disabled={toolPending}
-                className="flex items-center gap-1.5 px-3 py-1.5 text-sm rounded border border-green-800 text-green-400 hover:bg-green-800/20 transition-colors disabled:opacity-40"
-              >
-                <Plug size={14} /> Install to PATH
-              </button>
-            )}
-          </div>
-        )}
+        <ProgramActions name={component.id} actions={component.actions} installed={component.installed} />
       </DetailHeader>
 
       {component.description && (
@@ -121,7 +100,7 @@ export function ComponentDetailPage() {
         </div>
       )}
 
-      <ConfigPanel component={component} configSection="components" onRefetch={refetch} />
+      <ConfigPanel component={component} configSection="programs" onRefetch={refetch} />
     </div>
   )
 }

app/src/pages/ComponentRedirect.tsx

@@ -12,7 +12,7 @@ export function ComponentRedirect() {
   }
 
   if (error || !component) {
-    return <Navigate to={`/components/${name}`} replace />
+    return <Navigate to={`/programs/${name}`} replace />
   }
 
   if (component.managed && !component.schedule) {
@@ -20,8 +20,8 @@ export function ComponentRedirect() {
   }
 
   if (component.managed && component.schedule) {
-    return <Navigate to={`/scheduled/${name}`} replace />
+    return <Navigate to={`/jobs/${name}`} replace />
   }
 
-  return <Navigate to={`/components/${name}`} replace />
+  return <Navigate to={`/programs/${name}`} replace />
 }

app/src/pages/Dashboard.tsx

@@ -1,5 +1,4 @@
-import { useMemo } from "react"
-import { useComponents, useStatus, useGateway, useNodes, useMeshStatus, useEventStream } from "@/services/api/hooks"
+import { useServices, useJobs, usePrograms, useStatus, useGateway, useNodes, useMeshStatus, useEventStream } from "@/services/api/hooks"
 import { GatewayPanel } from "@/components/GatewayPanel"
 import { MeshPanel } from "@/components/MeshPanel"
 import { NodeBar } from "@/components/NodeBar"
@@ -11,20 +10,16 @@ import { SectionHeader } from "@/components/SectionHeader"
 
 export function Dashboard() {
   useEventStream()
-  const { data: components, isLoading } = useComponents()
+  const { data: services, isLoading: loadingServices } = useServices()
+  const { data: jobs, isLoading: loadingJobs } = useJobs()
+  const { data: programs, isLoading: loadingPrograms } = usePrograms()
   const { data: statusResp } = useStatus()
   const { data: gateway } = useGateway()
   const { data: nodes } = useNodes()
   const { data: mesh } = useMeshStatus()
 
-  const { services, scheduled, catalog } = useMemo(() => {
-    const svc = (components ?? []).filter((c) => c.category === "service")
-    const sch = (components ?? []).filter((c) => c.category === "job")
-    const cat = (components ?? []).filter((c) => c.category === "component")
-    return { services: svc, scheduled: sch, catalog: cat }
-  }, [components])
-
   const statuses = statusResp?.statuses ?? []
+  const isLoading = loadingServices || loadingJobs || loadingPrograms
 
   return (
     <div className="max-w-6xl mx-auto px-6 py-8">
@@ -51,16 +46,16 @@ export function Dashboard() {
         <p className="text-[var(--muted)]">Loading...</p>
       ) : (
         <div className="space-y-10">
-          {services.length > 0 && (
+          {services && services.length > 0 && (
             <ServiceSection services={services} statuses={statuses} />
           )}
-          {scheduled.length > 0 && (
-            <ScheduledSection jobs={scheduled} statuses={statuses} />
+          {jobs && jobs.length > 0 && (
+            <ScheduledSection jobs={jobs} statuses={statuses} />
           )}
-          {catalog.length > 0 && (
+          {programs && programs.length > 0 && (
             <section>
-              <SectionHeader section="component" />
-              <ComponentTable components={catalog} />
+              <SectionHeader section="program" />
+              <ComponentTable components={programs} />
             </section>
           )}
         </div>

app/src/pages/ScheduledDetail.tsx

@@ -1,7 +1,8 @@
+import { useRef } from "react"
 import { useParams } from "react-router-dom"
-import { Clock } from "lucide-react"
-import { useComponent, useStatus, useEventStream } from "@/services/api/hooks"
-import { LogViewer } from "@/components/LogViewer"
+import { Clock, Trash2 } from "lucide-react"
+import { useJob, useStatus, useEventStream } from "@/services/api/hooks"
+import { LogViewer, type LogViewerHandle } from "@/components/LogViewer"
 import { DetailHeader } from "@/components/detail/DetailHeader"
 import { ServiceControls } from "@/components/detail/ServiceControls"
 import { SystemdPanel } from "@/components/detail/SystemdPanel"
@@ -9,8 +10,9 @@ import { ConfigPanel } from "@/components/detail/ConfigPanel"
 
 export function ScheduledDetailPage() {
   useEventStream()
+  const logRef = useRef<LogViewerHandle>(null)
   const { name } = useParams<{ name: string }>()
-  const { data: component, isLoading, error, refetch } = useComponent(name ?? "")
+  const { data: component, isLoading, error, refetch } = useJob(name ?? "")
   const { data: statusResp } = useStatus()
   const health = statusResp?.statuses.find((s) => s.id === name)
 
@@ -35,7 +37,7 @@ export function ScheduledDetailPage() {
         backTo="/"
         backLabel="Back to Jobs"
         name={component.id}
-        behavior={component.behavior}
+        behavior="tool"
         stack={component.stack}
         source={component.source}
       >
@@ -73,8 +75,16 @@ export function ScheduledDetailPage() {
 
       {component.managed && (
         <div className="mb-6">
-          <h2 className="text-lg font-semibold mb-3">Logs</h2>
-          <LogViewer name={component.id} />
+          <div className="flex items-center justify-between mb-3">
+            <h2 className="text-lg font-semibold">Logs</h2>
+            <button
+              onClick={() => logRef.current?.clear()}
+              className="flex items-center gap-1.5 px-3 py-1.5 text-sm rounded border border-[var(--border)] text-[var(--muted)] hover:text-[var(--foreground)] hover:border-[var(--foreground)] transition-colors"
+            >
+              <Trash2 size={14} /> Clear
+            </button>
+          </div>
+          <LogViewer ref={logRef} name={component.id} />
         </div>
       )}
     </div>

app/src/pages/ServiceDetail.tsx

@@ -1,9 +1,10 @@
+import { useRef } from "react"
 import { useParams } from "react-router-dom"
-import { Server, ExternalLink, Terminal } from "lucide-react"
-import { useComponent, useStatus, useEventStream, useCaddyfile } from "@/services/api/hooks"
+import { Server, ExternalLink, Terminal, Trash2 } from "lucide-react"
+import { useService, useStatus, useEventStream, useCaddyfile } from "@/services/api/hooks"
 import { runnerLabel } from "@/lib/labels"
 import { HealthBadge } from "@/components/HealthBadge"
-import { LogViewer } from "@/components/LogViewer"
+import { LogViewer, type LogViewerHandle } from "@/components/LogViewer"
 import { DetailHeader } from "@/components/detail/DetailHeader"
 import { ServiceControls } from "@/components/detail/ServiceControls"
 import { SystemdPanel } from "@/components/detail/SystemdPanel"
@@ -11,8 +12,9 @@ import { ConfigPanel } from "@/components/detail/ConfigPanel"
 
 export function ServiceDetailPage() {
   useEventStream()
+  const logRef = useRef<LogViewerHandle>(null)
   const { name } = useParams<{ name: string }>()
-  const { data: component, isLoading, error, refetch } = useComponent(name ?? "")
+  const { data: component, isLoading, error, refetch } = useService(name ?? "")
   const { data: statusResp } = useStatus()
   const health = statusResp?.statuses.find((s) => s.id === name)
   const isGateway = name === "castle-gateway"
@@ -41,7 +43,7 @@ export function ServiceDetailPage() {
         backTo="/"
         backLabel="Back to Services"
         name={component.id}
-        behavior={component.behavior}
+        behavior="daemon"
         stack={component.stack}
         source={component.source}
       >
@@ -129,8 +131,16 @@ export function ServiceDetailPage() {
 
       {component.managed && (
         <div className="mb-6">
-          <h2 className="text-lg font-semibold mb-3">Logs</h2>
-          <LogViewer name={component.id} />
+          <div className="flex items-center justify-between mb-3">
+            <h2 className="text-lg font-semibold">Logs</h2>
+            <button
+              onClick={() => logRef.current?.clear()}
+              className="flex items-center gap-1.5 px-3 py-1.5 text-sm rounded border border-[var(--border)] text-[var(--muted)] hover:text-[var(--foreground)] hover:border-[var(--foreground)] transition-colors"
+            >
+              <Trash2 size={14} /> Clear
+            </button>
+          </div>
+          <LogViewer ref={logRef} name={component.id} />
         </div>
       )}
     </div>

app/src/router/routes.tsx

@@ -20,7 +20,7 @@ export const router = createBrowserRouter([
     element: <ScheduledDetailPage />,
   },
   {
-    path: "/components/:name",
+    path: "/programs/:name",
     element: <ComponentDetailPage />,
   },
   {

app/src/services/api/hooks.ts

@@ -2,8 +2,13 @@ import { useEffect } from "react"
 import { useQuery, useQueryClient, useMutation } from "@tanstack/react-query"
 import { apiClient } from "./client"
 import type {
-  ComponentSummary,
   ComponentDetail,
+  ServiceSummary,
+  ServiceDetail,
+  JobSummary,
+  JobDetail,
+  ProgramSummary,
+  ProgramDetail,
   StatusResponse,
   GatewayInfo,
   ServiceActionResponse,
@@ -15,13 +20,7 @@ import type {
   ToolDetail,
 } from "@/types"
 
-export function useComponents() {
-  return useQuery({
-    queryKey: ["components"],
-    queryFn: () => apiClient.get<ComponentSummary[]>("/components"),
-  })
-}
-
+// Legacy compat hook — used by ConfigEditorPage and ComponentRedirect
 export function useComponent(name: string) {
   return useQuery({
     queryKey: ["components", name],
@@ -30,6 +29,51 @@ export function useComponent(name: string) {
   })
 }
 
+export function useServices() {
+  return useQuery({
+    queryKey: ["services"],
+    queryFn: () => apiClient.get<ServiceSummary[]>("/services"),
+  })
+}
+
+export function useService(name: string) {
+  return useQuery({
+    queryKey: ["services", name],
+    queryFn: () => apiClient.get<ServiceDetail>(`/services/${name}`),
+    enabled: !!name,
+  })
+}
+
+export function useJobs() {
+  return useQuery({
+    queryKey: ["jobs"],
+    queryFn: () => apiClient.get<JobSummary[]>("/jobs"),
+  })
+}
+
+export function useJob(name: string) {
+  return useQuery({
+    queryKey: ["jobs", name],
+    queryFn: () => apiClient.get<JobDetail>(`/jobs/${name}`),
+    enabled: !!name,
+  })
+}
+
+export function usePrograms() {
+  return useQuery({
+    queryKey: ["programs"],
+    queryFn: () => apiClient.get<ProgramSummary[]>("/programs"),
+  })
+}
+
+export function useProgram(name: string) {
+  return useQuery({
+    queryKey: ["programs", name],
+    queryFn: () => apiClient.get<ProgramDetail>(`/programs/${name}`),
+    enabled: !!name,
+  })
+}
+
 export function useStatus() {
   return useQuery({
     queryKey: ["status"],
@@ -97,15 +141,15 @@ export function useServiceAction() {
   })
 }
 
-export function useToolAction() {
+export function useProgramAction() {
   const qc = useQueryClient()
   return useMutation({
-    mutationFn: ({ name, action }: { name: string; action: "install" | "uninstall" }) =>
-      apiClient.post<{ component: string; action: string; status: string }>(
-        `/tools/${name}/${action}`,
+    mutationFn: ({ name, action }: { name: string; action: string }) =>
+      apiClient.post<{ component: string; action: string; status: string; output: string }>(
+        `/programs/${name}/${action}`,
       ),
     onSuccess: () => {
-      qc.invalidateQueries({ queryKey: ["components"] })
+      qc.invalidateQueries({ queryKey: ["programs"] })
     },
   })
 }
@@ -171,9 +215,10 @@ export function useEventStream() {
     })
 
     es.addEventListener("service-action", () => {
-      // Health event already pushes correct status; just refetch components
+      // Health event already pushes correct status; just refetch services/jobs
       // in case the action changed what's available
-      qc.invalidateQueries({ queryKey: ["components"] })
+      qc.invalidateQueries({ queryKey: ["services"] })
+      qc.invalidateQueries({ queryKey: ["jobs"] })
     })
 
     es.addEventListener("mesh", () => {

app/src/types/index.ts

@@ -4,9 +4,65 @@ export interface SystemdInfo {
   timer: boolean
 }
 
+export interface ServiceSummary {
+  id: string
+  description: string | null
+  stack: string | null
+  runner: string | null
+  port: number | null
+  health_path: string | null
+  proxy_path: string | null
+  managed: boolean
+  systemd: SystemdInfo | null
+  source: string | null
+  node: string | null
+}
+
+export interface ServiceDetail extends ServiceSummary {
+  manifest: Record<string, unknown>
+}
+
+export interface JobSummary {
+  id: string
+  description: string | null
+  stack: string | null
+  runner: string | null
+  schedule: string | null
+  managed: boolean
+  systemd: SystemdInfo | null
+  source: string | null
+  node: string | null
+}
+
+export interface JobDetail extends JobSummary {
+  manifest: Record<string, unknown>
+}
+
+export interface ProgramSummary {
+  id: string
+  description: string | null
+  behavior: string | null
+  stack: string | null
+  runner: string | null
+  version: string | null
+  source: string | null
+  system_dependencies: string[]
+  installed: boolean | null
+  actions: string[]
+  node: string | null
+}
+
+export interface ProgramDetail extends ProgramSummary {
+  manifest: Record<string, unknown>
+}
+
+// Union for shared detail components (ConfigPanel, ComponentFields)
+export type AnyDetail = ServiceDetail | JobDetail | ProgramDetail
+
+// Legacy unified type — kept for NodeDetail.deployed and compat endpoint
 export interface ComponentSummary {
   id: string
-  category: "component" | "service" | "job" | null
+  category: "program" | "service" | "job" | null
   description: string | null
   behavior: string | null
   stack: string | null

castle-api/src/castle_api/config_editor.py

@@ -10,7 +10,7 @@ from fastapi import APIRouter, HTTPException, status
 from pydantic import BaseModel
 
 from castle_core.config import save_config
-from castle_core.manifest import ComponentSpec, JobSpec, ServiceSpec
+from castle_core.manifest import ProgramSpec, JobSpec, ServiceSpec
 
 from castle_api.config import get_castle_root, get_config, get_registry
 from castle_api.stream import broadcast
@@ -28,7 +28,7 @@ class ConfigSaveRequest(BaseModel):
 
 class ConfigSaveResponse(BaseModel):
     ok: bool
-    component_count: int
+    program_count: int
     service_count: int
     job_count: int
     errors: list[str]
@@ -40,7 +40,7 @@ class ApplyResponse(BaseModel):
     errors: list[str]
 
 
-class ComponentConfigRequest(BaseModel):
+class ProgramConfigRequest(BaseModel):
     config: dict
 
 
@@ -92,16 +92,17 @@ def save_yaml(request: ConfigSaveRequest) -> ConfigSaveResponse:
             detail="YAML must be a mapping",
         )
 
-    # Validate components
-    comp_count = 0
-    for name, comp_data in data.get("components", {}).items():
+    # Validate programs
+    prog_count = 0
+    programs_data = data.get("programs") or data.get("components") or {}
+    for name, comp_data in programs_data.items():
         try:
             comp_data_copy = dict(comp_data) if comp_data else {}
             comp_data_copy["id"] = name
-            ComponentSpec.model_validate(comp_data_copy)
-            comp_count += 1
+            ProgramSpec.model_validate(comp_data_copy)
+            prog_count += 1
         except Exception as e:
-            errors.append(f"components.{name}: {e}")
+            errors.append(f"programs.{name}: {e}")
 
     # Validate services
     svc_count = 0
@@ -138,46 +139,46 @@ def save_yaml(request: ConfigSaveRequest) -> ConfigSaveResponse:
     config_path.write_text(request.yaml_content)
 
     return ConfigSaveResponse(
-        ok=True, component_count=comp_count, service_count=svc_count,
+        ok=True, program_count=prog_count, service_count=svc_count,
         job_count=job_count, errors=[],
     )
 
 
-@router.put("/components/{name}")
-def save_component(name: str, request: ComponentConfigRequest) -> dict:
-    """Update a single component's config in castle.yaml."""
+@router.put("/programs/{name}")
+def save_program(name: str, request: ProgramConfigRequest) -> dict:
+    """Update a single program's config in castle.yaml."""
     _require_repo()
 
     try:
-        comp_data = dict(request.config)
-        comp_data["id"] = name
-        ComponentSpec.model_validate(comp_data)
+        prog_data = dict(request.config)
+        prog_data["id"] = name
+        ProgramSpec.model_validate(prog_data)
     except Exception as e:
         raise HTTPException(
             status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
-            detail=f"Invalid component config: {e}",
+            detail=f"Invalid program config: {e}",
         )
 
     config = get_config()
-    config.components[name] = ComponentSpec.model_validate(
+    config.programs[name] = ProgramSpec.model_validate(
         {**request.config, "id": name}
     )
     save_config(config)
-    return {"ok": True, "component": name}
+    return {"ok": True, "program": name}
 
 
-@router.delete("/components/{name}")
-def delete_component(name: str) -> dict:
-    """Remove a component from castle.yaml."""
+@router.delete("/programs/{name}")
+def delete_program(name: str) -> dict:
+    """Remove a program from castle.yaml."""
     config = get_config()
-    if name not in config.components:
+    if name not in config.programs:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND,
-            detail=f"Component '{name}' not found",
+            detail=f"Program '{name}' not found",
         )
-    del config.components[name]
+    del config.programs[name]
     save_config(config)
-    return {"ok": True, "component": name, "action": "deleted"}
+    return {"ok": True, "program": name, "action": "deleted"}
 
 
 @router.put("/services/{name}")

castle-api/src/castle_api/models.py

@@ -15,7 +15,7 @@ class ComponentSummary(BaseModel):
     """Summary of a single component."""
 
     id: str
-    category: str | None = None  # "component", "service", or "job"
+    category: str | None = None  # "program", "service", or "job"
     description: str | None = None
     behavior: str | None = None
     stack: str | None = None
@@ -39,6 +39,70 @@ class ComponentDetail(ComponentSummary):
     manifest: dict
 
 
+class ServiceSummary(BaseModel):
+    """Summary of a service (long-running daemon)."""
+
+    id: str
+    description: str | None = None
+    stack: str | None = None
+    runner: str | None = None
+    port: int | None = None
+    health_path: str | None = None
+    proxy_path: str | None = None
+    managed: bool = False
+    systemd: SystemdInfo | None = None
+    source: str | None = None
+    node: str | None = None
+
+
+class ServiceDetail(ServiceSummary):
+    """Full detail for a service, including raw manifest."""
+
+    manifest: dict
+
+
+class JobSummary(BaseModel):
+    """Summary of a job (scheduled task)."""
+
+    id: str
+    description: str | None = None
+    stack: str | None = None
+    runner: str | None = None
+    schedule: str | None = None
+    managed: bool = False
+    systemd: SystemdInfo | None = None
+    source: str | None = None
+    node: str | None = None
+
+
+class JobDetail(JobSummary):
+    """Full detail for a job, including raw manifest."""
+
+    manifest: dict
+
+
+class ProgramSummary(BaseModel):
+    """Summary of a program (software catalog entry)."""
+
+    id: str
+    description: str | None = None
+    behavior: str | None = None
+    stack: str | None = None
+    runner: str | None = None
+    version: str | None = None
+    source: str | None = None
+    system_dependencies: list[str] = []
+    installed: bool | None = None
+    actions: list[str] = []
+    node: str | None = None
+
+
+class ProgramDetail(ProgramSummary):
+    """Full detail for a program, including raw manifest."""
+
+    manifest: dict
+
+
 class HealthStatus(BaseModel):
     """Health status of a single component."""
 

castle-api/src/castle_api/routes.py

@@ -10,7 +10,8 @@ from fastapi import APIRouter, HTTPException, status
 
 from castle_core.config import GENERATED_DIR
 from castle_core.generators.caddyfile import generate_caddyfile_from_registry
-from castle_core.manifest import ComponentSpec, JobSpec, ServiceSpec
+from castle_core.manifest import ProgramSpec, JobSpec, ServiceSpec
+from castle_core.stacks import available_actions
 
 from castle_api.config import get_castle_root, get_registry
 from castle_api.mesh import mesh_state
@@ -20,6 +21,12 @@ from castle_api.models import (
     ComponentSummary,
     GatewayInfo,
     GatewayRoute,
+    JobDetail,
+    JobSummary,
+    ProgramDetail,
+    ProgramSummary,
+    ServiceDetail,
+    ServiceSummary,
     StatusResponse,
     SystemdInfo,
 )
@@ -88,8 +95,8 @@ def _summary_from_service(name: str, svc: ServiceSpec, config: object) -> Compon
     description = svc.description
     source = None
     stack = None
-    if svc.component and svc.component in config.components:
-        comp = config.components[svc.component]
+    if svc.component and svc.component in config.programs:
+        comp = config.programs[svc.component]
         if not description:
             description = comp.description
         source = comp.source
@@ -126,8 +133,8 @@ def _summary_from_job(name: str, job: JobSpec, config: object) -> ComponentSumma
     description = job.description
     source = None
     stack = None
-    if job.component and job.component in config.components:
-        comp = config.components[job.component]
+    if job.component and job.component in config.programs:
+        comp = config.programs[job.component]
         if not description:
             description = comp.description
         source = comp.source
@@ -147,8 +154,8 @@ def _summary_from_job(name: str, job: JobSpec, config: object) -> ComponentSumma
     )
 
 
-def _summary_from_component(name: str, comp: ComponentSpec, root: Path) -> ComponentSummary:
-    """Build a ComponentSummary from a ComponentSpec (tools/frontends)."""
+def _summary_from_program(name: str, comp: ProgramSpec, root: Path) -> ComponentSummary:
+    """Build a ComponentSummary from a ProgramSpec (tools/frontends)."""
     # Determine behavior
     is_tool = bool((comp.install and comp.install.path) or comp.tool)
     is_frontend = bool(comp.build and (comp.build.outputs or comp.build.commands))
@@ -178,7 +185,7 @@ def _summary_from_component(name: str, comp: ComponentSpec, root: Path) -> Compo
 
     return ComponentSummary(
         id=name,
-        category="component",
+        category="program",
         description=comp.description,
         behavior=behavior,
         stack=comp.stack,
@@ -190,6 +197,454 @@ def _summary_from_component(name: str, comp: ComponentSpec, root: Path) -> Compo
     )
 
 
+# ---------------------------------------------------------------------------
+# Typed builder functions — one per concept
+# ---------------------------------------------------------------------------
+
+
+def _make_systemd_info(name: str, timer: bool = False) -> SystemdInfo:
+    unit_name = f"castle-{name}.service"
+    unit_path = str(Path("~/.config/systemd/user") / unit_name)
+    return SystemdInfo(unit_name=unit_name, unit_path=unit_path, timer=timer)
+
+
+def _backfill_source(name: str, config: object) -> str | None:
+    """Resolve source path from program ref in config."""
+    if name in config.programs:
+        return config.programs[name].source
+    ref = None
+    if name in config.services:
+        ref = config.services[name].component
+    elif name in config.jobs:
+        ref = config.jobs[name].component
+    if ref and ref in config.programs:
+        return config.programs[ref].source
+    return None
+
+
+def _service_from_deployed(name: str, deployed: object) -> ServiceSummary:
+    """Build a ServiceSummary from a DeployedComponent."""
+    systemd_info = _make_systemd_info(name) if deployed.managed else None
+    return ServiceSummary(
+        id=name,
+        description=deployed.description,
+        stack=deployed.stack,
+        runner=deployed.runner,
+        port=deployed.port,
+        health_path=deployed.health_path,
+        proxy_path=deployed.proxy_path,
+        managed=deployed.managed,
+        systemd=systemd_info,
+    )
+
+
+def _service_from_spec(
+    name: str, svc: ServiceSpec, config: object
+) -> ServiceSummary:
+    """Build a ServiceSummary from a ServiceSpec."""
+    port = None
+    health_path = None
+    proxy_path = None
+    if svc.expose and svc.expose.http:
+        port = svc.expose.http.internal.port
+        health_path = svc.expose.http.health_path
+    if svc.proxy and svc.proxy.caddy:
+        proxy_path = svc.proxy.caddy.path_prefix
+
+    managed = bool(svc.manage and svc.manage.systemd and svc.manage.systemd.enable)
+    systemd_info = _make_systemd_info(name) if managed else None
+
+    description = svc.description
+    source = None
+    stack = None
+    if svc.component and svc.component in config.programs:
+        comp = config.programs[svc.component]
+        if not description:
+            description = comp.description
+        source = comp.source
+        stack = comp.stack
+
+    return ServiceSummary(
+        id=name,
+        description=description,
+        stack=stack,
+        runner=svc.run.runner,
+        port=port,
+        health_path=health_path,
+        proxy_path=proxy_path,
+        managed=managed,
+        systemd=systemd_info,
+        source=source,
+    )
+
+
+def _job_from_deployed(name: str, deployed: object) -> JobSummary:
+    """Build a JobSummary from a DeployedComponent."""
+    systemd_info = (
+        _make_systemd_info(name, timer=True) if deployed.managed else None
+    )
+    return JobSummary(
+        id=name,
+        description=deployed.description,
+        stack=deployed.stack,
+        runner=deployed.runner,
+        schedule=deployed.schedule,
+        managed=deployed.managed,
+        systemd=systemd_info,
+    )
+
+
+def _job_from_spec(name: str, job: JobSpec, config: object) -> JobSummary:
+    """Build a JobSummary from a JobSpec."""
+    managed = bool(job.manage and job.manage.systemd and job.manage.systemd.enable)
+    systemd_info = _make_systemd_info(name, timer=True) if managed else None
+
+    description = job.description
+    source = None
+    stack = None
+    if job.component and job.component in config.programs:
+        comp = config.programs[job.component]
+        if not description:
+            description = comp.description
+        source = comp.source
+        stack = comp.stack
+
+    return JobSummary(
+        id=name,
+        description=description,
+        stack=stack,
+        runner=job.run.runner,
+        schedule=job.schedule,
+        managed=managed,
+        systemd=systemd_info,
+        source=source,
+    )
+
+
+def _program_from_spec(
+    name: str, comp: ProgramSpec, root: Path, config: object | None = None
+) -> ProgramSummary:
+    """Build a ProgramSummary from a ProgramSpec."""
+    is_tool = bool((comp.install and comp.install.path) or comp.tool)
+    is_frontend = bool(comp.build and (comp.build.outputs or comp.build.commands))
+
+    if is_tool:
+        behavior = "tool"
+    elif is_frontend:
+        behavior = "frontend"
+    else:
+        behavior = None
+
+    # Derive behavior from backing service/job
+    if behavior is None and config is not None:
+        svc_components = {
+            s.component for s in config.services.values() if s.component
+        }
+        job_components = {
+            j.component for j in config.jobs.values() if j.component
+        }
+        if name in svc_components or name in config.services:
+            behavior = "daemon"
+        elif name in job_components or name in config.jobs:
+            behavior = "tool"
+
+    source = comp.source
+    runner = None
+    if source:
+        source_dir = root / source
+        if (source_dir / "pyproject.toml").exists():
+            runner = "python"
+        elif source_dir.is_file():
+            runner = "command"
+
+    installed: bool | None = None
+    if comp.install and comp.install.path:
+        alias = comp.install.path.alias or name
+        installed = shutil.which(alias) is not None
+    elif config is not None:
+        # Daemons: check if the service's run.tool binary is on PATH
+        svc = config.services.get(name)
+        if svc and hasattr(svc.run, "tool"):
+            installed = shutil.which(svc.run.tool) is not None
+
+    return ProgramSummary(
+        id=name,
+        description=comp.description,
+        behavior=behavior,
+        stack=comp.stack,
+        runner=runner,
+        version=comp.tool.version if comp.tool else None,
+        source=source,
+        system_dependencies=comp.tool.system_dependencies if comp.tool else [],
+        installed=installed,
+        actions=available_actions(comp),
+    )
+
+
+# ---------------------------------------------------------------------------
+# Typed endpoints — /services, /jobs, /programs
+# ---------------------------------------------------------------------------
+
+
+@router.get("/services", response_model=list[ServiceSummary], tags=["services-data"])
+def list_services(include_remote: bool = False) -> list[ServiceSummary]:
+    """List all services — deployed from registry, non-deployed from castle.yaml."""
+    registry = get_registry()
+    hostname = registry.node.hostname
+    summaries: list[ServiceSummary] = []
+    seen: set[str] = set()
+
+    # Deployed services (non-scheduled)
+    for name, deployed in registry.deployed.items():
+        if deployed.schedule:
+            continue
+        s = _service_from_deployed(name, deployed)
+        s.node = hostname
+        # Backfill source
+        root = get_castle_root()
+        if root and s.source is None:
+            try:
+                from castle_core.config import load_config
+
+                config = load_config(root)
+                s.source = _backfill_source(name, config)
+            except FileNotFoundError:
+                pass
+        summaries.append(s)
+        seen.add(name)
+
+    # Non-deployed from castle.yaml
+    root = get_castle_root()
+    if root:
+        try:
+            from castle_core.config import load_config
+
+            config = load_config(root)
+            for name, svc in config.services.items():
+                if name not in seen:
+                    s = _service_from_spec(name, svc, config)
+                    s.node = hostname
+                    summaries.append(s)
+                    seen.add(name)
+        except FileNotFoundError:
+            pass
+
+    # Remote
+    if include_remote:
+        for remote_host, remote in mesh_state.all_nodes().items():
+            for name, d in remote.registry.deployed.items():
+                if not d.schedule and name not in seen:
+                    s = _service_from_deployed(name, d)
+                    s.node = remote_host
+                    summaries.append(s)
+                    seen.add(name)
+
+    return summaries
+
+
+@router.get(
+    "/services/{name}",
+    response_model=ServiceDetail,
+    tags=["services-data"],
+)
+def get_service(name: str) -> ServiceDetail:
+    """Get detailed info for a single service."""
+    registry = get_registry()
+
+    if name in registry.deployed and not registry.deployed[name].schedule:
+        deployed = registry.deployed[name]
+        summary = _service_from_deployed(name, deployed)
+        root = get_castle_root()
+        if root and summary.source is None:
+            try:
+                from castle_core.config import load_config
+
+                config = load_config(root)
+                summary.source = _backfill_source(name, config)
+            except FileNotFoundError:
+                pass
+        raw = {
+            "runner": deployed.runner,
+            "run_cmd": deployed.run_cmd,
+            "env": deployed.env,
+            "port": deployed.port,
+            "health_path": deployed.health_path,
+            "proxy_path": deployed.proxy_path,
+            "managed": deployed.managed,
+            "behavior": deployed.behavior,
+            "stack": deployed.stack,
+        }
+        return ServiceDetail(**summary.model_dump(), manifest=raw)
+
+    root = get_castle_root()
+    if root:
+        from castle_core.config import load_config
+
+        config = load_config(root)
+        if name in config.services:
+            svc = config.services[name]
+            summary = _service_from_spec(name, svc, config)
+            raw = svc.model_dump(mode="json", exclude_none=True)
+            return ServiceDetail(**summary.model_dump(), manifest=raw)
+
+    raise HTTPException(
+        status_code=status.HTTP_404_NOT_FOUND,
+        detail=f"Service '{name}' not found",
+    )
+
+
+@router.get("/jobs", response_model=list[JobSummary], tags=["jobs-data"])
+def list_jobs(include_remote: bool = False) -> list[JobSummary]:
+    """List all jobs — deployed from registry, non-deployed from castle.yaml."""
+    registry = get_registry()
+    hostname = registry.node.hostname
+    summaries: list[JobSummary] = []
+    seen: set[str] = set()
+
+    # Deployed jobs (scheduled)
+    for name, deployed in registry.deployed.items():
+        if not deployed.schedule:
+            continue
+        s = _job_from_deployed(name, deployed)
+        s.node = hostname
+        root = get_castle_root()
+        if root and s.source is None:
+            try:
+                from castle_core.config import load_config
+
+                config = load_config(root)
+                s.source = _backfill_source(name, config)
+            except FileNotFoundError:
+                pass
+        summaries.append(s)
+        seen.add(name)
+
+    # Non-deployed from castle.yaml
+    root = get_castle_root()
+    if root:
+        try:
+            from castle_core.config import load_config
+
+            config = load_config(root)
+            for name, job in config.jobs.items():
+                if name not in seen:
+                    s = _job_from_spec(name, job, config)
+                    s.node = hostname
+                    summaries.append(s)
+                    seen.add(name)
+        except FileNotFoundError:
+            pass
+
+    # Remote
+    if include_remote:
+        for remote_host, remote in mesh_state.all_nodes().items():
+            for name, d in remote.registry.deployed.items():
+                if d.schedule and name not in seen:
+                    s = _job_from_deployed(name, d)
+                    s.node = remote_host
+                    summaries.append(s)
+                    seen.add(name)
+
+    return summaries
+
+
+@router.get("/jobs/{name}", response_model=JobDetail, tags=["jobs-data"])
+def get_job(name: str) -> JobDetail:
+    """Get detailed info for a single job."""
+    registry = get_registry()
+
+    if name in registry.deployed and registry.deployed[name].schedule:
+        deployed = registry.deployed[name]
+        summary = _job_from_deployed(name, deployed)
+        root = get_castle_root()
+        if root and summary.source is None:
+            try:
+                from castle_core.config import load_config
+
+                config = load_config(root)
+                summary.source = _backfill_source(name, config)
+            except FileNotFoundError:
+                pass
+        raw = {
+            "runner": deployed.runner,
+            "run_cmd": deployed.run_cmd,
+            "env": deployed.env,
+            "managed": deployed.managed,
+            "schedule": deployed.schedule,
+            "behavior": deployed.behavior,
+            "stack": deployed.stack,
+        }
+        return JobDetail(**summary.model_dump(), manifest=raw)
+
+    root = get_castle_root()
+    if root:
+        from castle_core.config import load_config
+
+        config = load_config(root)
+        if name in config.jobs:
+            job = config.jobs[name]
+            summary = _job_from_spec(name, job, config)
+            raw = job.model_dump(mode="json", exclude_none=True)
+            return JobDetail(**summary.model_dump(), manifest=raw)
+
+    raise HTTPException(
+        status_code=status.HTTP_404_NOT_FOUND,
+        detail=f"Job '{name}' not found",
+    )
+
+
+@router.get("/programs", response_model=list[ProgramSummary], tags=["programs"])
+def list_programs() -> list[ProgramSummary]:
+    """List all programs from the software catalog (castle.yaml programs section)."""
+    root = get_castle_root()
+    if not root:
+        return []
+
+    try:
+        from castle_core.config import load_config
+
+        config = load_config(root)
+    except FileNotFoundError:
+        return []
+
+    hostname = get_registry().node.hostname
+    summaries: list[ProgramSummary] = []
+
+    for name, comp in config.programs.items():
+        summary = _program_from_spec(name, comp, root, config)
+        if summary.behavior is None:
+            continue
+        summary.node = hostname
+        summaries.append(summary)
+
+    return summaries
+
+
+@router.get("/programs/{name}", response_model=ProgramDetail, tags=["programs"])
+def get_program(name: str) -> ProgramDetail:
+    """Get detailed info for a single program."""
+    root = get_castle_root()
+    if root:
+        from castle_core.config import load_config
+
+        config = load_config(root)
+        if name in config.programs:
+            comp = config.programs[name]
+            summary = _program_from_spec(name, comp, root, config)
+            raw = comp.model_dump(mode="json", exclude_none=True)
+            return ProgramDetail(**summary.model_dump(), manifest=raw)
+
+    raise HTTPException(
+        status_code=status.HTTP_404_NOT_FOUND,
+        detail=f"Program '{name}' not found",
+    )
+
+
+# ---------------------------------------------------------------------------
+# Legacy /components endpoint (compat shim)
+# ---------------------------------------------------------------------------
+
+
 @router.get("/components", response_model=list[ComponentSummary])
 def list_components(include_remote: bool = False) -> list[ComponentSummary]:
     """List all components — deployed from registry, non-deployed from castle.yaml.
@@ -232,33 +687,37 @@ def list_components(include_remote: bool = False) -> list[ComponentSummary]:
                     summaries.append(s)
                     seen.add(name)
 
-            # Backfill source from component refs for deployed items
+            # Backfill source from program refs for deployed items
             for s in summaries:
-                if s.source is None and s.id in config.components:
-                    s.source = config.components[s.id].source
+                if s.source is None and s.id in config.programs:
+                    s.source = config.programs[s.id].source
                 elif s.source is None:
-                    # Check if a service/job references a component
+                    # Check if a service/job references a program
                     ref = None
                     if s.id in config.services:
                         ref = config.services[s.id].component
                     elif s.id in config.jobs:
                         ref = config.jobs[s.id].component
-                    if ref and ref in config.components:
-                        s.source = config.components[ref].source
+                    if ref and ref in config.programs:
+                        s.source = config.programs[ref].source
 
-            # Components (tools/frontends) not already represented by a
-            # service or job entry.  Skip if the component has no
-            # distinct behavior (e.g. it's just the software identity
-            # behind a service).
-            for name, comp in config.components.items():
-                if name in seen:
-                    continue
-                summary = _summary_from_component(name, comp, root)
+            # Programs — always include entries from the programs
+            # section as catalog items.  Derive behavior from backing
+            # service/job when the program has no install/build spec.
+            svc_components = {s.component for s in config.services.values() if s.component}
+            job_components = {j.component for j in config.jobs.values() if j.component}
+
+            for name, comp in config.programs.items():
+                summary = _summary_from_program(name, comp, root)
                 if summary.behavior is None:
-                    continue
+                    if name in svc_components or name in config.services:
+                        summary.behavior = "daemon"
+                    elif name in job_components or name in config.jobs:
+                        summary.behavior = "tool"
+                    else:
+                        continue
                 summary.node = local_hostname
                 summaries.append(summary)
-                seen.add(name)
         except FileNotFoundError:
             pass
 
@@ -297,23 +756,23 @@ def get_component(name: str) -> ComponentDetail:
         deployed = registry.deployed[name]
         summary = _summary_from_deployed(name, deployed)
 
-        # Backfill source from castle.yaml component ref
+        # Backfill source from castle.yaml program ref
         root = get_castle_root()
         if root and summary.source is None:
             try:
                 from castle_core.config import load_config
 
                 config = load_config(root)
-                if name in config.components:
-                    summary.source = config.components[name].source
+                if name in config.programs:
+                    summary.source = config.programs[name].source
                 else:
                     ref = None
                     if name in config.services:
                         ref = config.services[name].component
                     elif name in config.jobs:
                         ref = config.jobs[name].component
-                    if ref and ref in config.components:
-                        summary.source = config.components[ref].source
+                    if ref and ref in config.programs:
+                        summary.source = config.programs[ref].source
             except FileNotFoundError:
                 pass
 
@@ -349,9 +808,9 @@ def get_component(name: str) -> ComponentDetail:
             raw = job.model_dump(mode="json", exclude_none=True)
             return ComponentDetail(**summary.model_dump(), manifest=raw)
 
-        if name in config.components:
-            comp = config.components[name]
-            summary = _summary_from_component(name, comp, root)
+        if name in config.programs:
+            comp = config.programs[name]
+            summary = _summary_from_program(name, comp, root)
             raw = comp.model_dump(mode="json", exclude_none=True)
             return ComponentDetail(**summary.model_dump(), manifest=raw)
 

castle-api/src/castle_api/tools.py

@@ -1,13 +1,13 @@
-"""Tools router — browse and inspect tool components."""
+"""Tools router and program actions."""
 
 from __future__ import annotations
 
-import asyncio
 from pathlib import Path
 
 from fastapi import APIRouter, HTTPException, status
 
-from castle_core.manifest import ComponentSpec
+from castle_core.manifest import ProgramSpec
+from castle_core.stacks import available_actions, get_handler
 
 from castle_api.config import get_config
 from castle_api.models import ToolDetail, ToolSummary
@@ -15,15 +15,15 @@ from castle_api.models import ToolDetail, ToolSummary
 router = APIRouter(tags=["tools"])
 
 
-def _is_tool(comp: ComponentSpec) -> bool:
+def _is_tool(comp: ProgramSpec) -> bool:
     """Check if a component is a tool (has install.path or tool spec)."""
     return bool((comp.install and comp.install.path) or comp.tool)
 
 
 def _tool_summary(
-    name: str, comp: ComponentSpec, root: Path | None = None
+    name: str, comp: ProgramSpec, root: Path | None = None
 ) -> ToolSummary:
-    """Build a ToolSummary from a ComponentSpec that is a tool."""
+    """Build a ToolSummary from a ProgramSpec that is a tool."""
     t = comp.tool
     installed = bool(
         comp.install and comp.install.path and comp.install.path.enable
@@ -54,7 +54,7 @@ def _tool_summary(
 def list_tools() -> list[ToolSummary]:
     """List all registered tools (requires repo access)."""
     config = get_config()
-    tools = {k: v for k, v in config.components.items() if _is_tool(v)}
+    tools = {k: v for k, v in config.programs.items() if _is_tool(v)}
 
     return sorted(
         [
@@ -70,13 +70,13 @@ def get_tool(name: str) -> ToolDetail:
     """Get detailed info for a single tool."""
     config = get_config()
 
-    if name not in config.components:
+    if name not in config.programs:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND,
             detail=f"Component '{name}' not found",
         )
 
-    comp = config.components[name]
+    comp = config.programs[name]
     if not _is_tool(comp):
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND,
@@ -87,82 +87,54 @@ def get_tool(name: str) -> ToolDetail:
     return ToolDetail(**summary.model_dump())
 
 
-@router.post("/tools/{name}/install")
-async def install_tool(name: str) -> dict:
-    """Install a tool to PATH via uv tool install."""
+# ---------------------------------------------------------------------------
+# Unified program action endpoint
+# ---------------------------------------------------------------------------
+
+_VALID_ACTIONS = {"build", "test", "lint", "type-check", "check", "install", "uninstall"}
+
+
+@router.post("/programs/{name}/{action}")
+async def program_action(name: str, action: str) -> dict:
+    """Run a lifecycle action on a program via its stack handler."""
+    if action not in _VALID_ACTIONS:
+        raise HTTPException(status_code=400, detail=f"Unknown action: {action}")
+
     config = get_config()
-    if name not in config.components:
+    if name not in config.programs:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND, detail=f"'{name}' not found"
         )
 
-    comp = config.components[name]
+    comp = config.programs[name]
     if not comp.source:
+        raise HTTPException(status_code=400, detail=f"'{name}' has no source directory")
+
+    actions = available_actions(comp)
+    if action not in actions:
         raise HTTPException(
-            status_code=400, detail=f"'{name}' has no source to install"
+            status_code=400,
+            detail=f"Action '{action}' not available for '{name}' (stack: {comp.stack})",
         )
 
-    source_dir = config.root / comp.source
-    if not (source_dir / "pyproject.toml").exists():
+    handler = get_handler(comp.stack)
+    if handler is None:
         raise HTTPException(
-            status_code=400, detail=f"No pyproject.toml in {comp.source}"
+            status_code=400, detail=f"No handler for stack '{comp.stack}'"
         )
 
-    proc = await asyncio.create_subprocess_exec(
-        "uv",
-        "tool",
-        "install",
-        "--editable",
-        str(source_dir),
-        "--force",
-        stdout=asyncio.subprocess.PIPE,
-        stderr=asyncio.subprocess.PIPE,
-    )
-    stdout, stderr = await proc.communicate()
-    output = (stdout or stderr or b"").decode().strip()
+    # Map hyphenated action names to method names (type-check → type_check)
+    method_name = action.replace("-", "_")
+    method = getattr(handler, method_name)
 
-    if proc.returncode != 0:
-        raise HTTPException(status_code=500, detail=output or "Install failed")
+    result = await method(name, comp, config.root)
 
-    return {"component": name, "action": "install", "status": "ok"}
+    if result.status != "ok":
+        raise HTTPException(status_code=500, detail=result.output or f"{action} failed")
 
-
-@router.post("/tools/{name}/uninstall")
-async def uninstall_tool(name: str) -> dict:
-    """Uninstall a tool from PATH via uv tool uninstall."""
-    config = get_config()
-    if name not in config.components:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND, detail=f"'{name}' not found"
-        )
-
-    comp = config.components[name]
-    if not comp.source:
-        raise HTTPException(status_code=400, detail=f"'{name}' has no source")
-
-    # uv tool uninstall uses the package name from pyproject.toml
-    source_dir = config.root / comp.source
-    pkg_name = source_dir.name
-    pyproject = source_dir / "pyproject.toml"
-    if pyproject.exists():
-        import tomllib
-
-        with open(pyproject, "rb") as f:
-            data = tomllib.load(f)
-        pkg_name = data.get("project", {}).get("name", pkg_name)
-
-    proc = await asyncio.create_subprocess_exec(
-        "uv",
-        "tool",
-        "uninstall",
-        pkg_name,
-        stdout=asyncio.subprocess.PIPE,
-        stderr=asyncio.subprocess.PIPE,
-    )
-    stdout, stderr = await proc.communicate()
-    output = (stdout or stderr or b"").decode().strip()
-
-    if proc.returncode != 0:
-        raise HTTPException(status_code=500, detail=output or "Uninstall failed")
-
-    return {"component": name, "action": "uninstall", "status": "ok"}
+    return {
+        "component": result.component,
+        "action": result.action,
+        "status": result.status,
+        "output": result.output,
+    }

castle-api/tests/test_health.py

@@ -71,6 +71,169 @@ class TestComponentDetail:
         assert response.status_code == 404
 
 
+class TestServicesList:
+    """GET /services endpoint tests."""
+
+    def test_returns_deployed_services(self, client: TestClient) -> None:
+        """Returns deployed services from registry."""
+        response = client.get("/services")
+        assert response.status_code == 200
+        data = response.json()
+        names = [s["id"] for s in data]
+        assert "test-svc" in names
+
+    def test_service_has_port_and_health(self, client: TestClient) -> None:
+        """Service summary includes port and health info."""
+        response = client.get("/services")
+        data = response.json()
+        svc = next(s for s in data if s["id"] == "test-svc")
+        assert svc["port"] == 19000
+        assert svc["health_path"] == "/health"
+        assert svc["proxy_path"] == "/test-svc"
+        assert svc["managed"] is True
+
+    def test_no_schedule_field(self, client: TestClient) -> None:
+        """ServiceSummary does not have schedule field."""
+        response = client.get("/services")
+        data = response.json()
+        svc = next(s for s in data if s["id"] == "test-svc")
+        assert "schedule" not in svc
+
+    def test_no_installed_field(self, client: TestClient) -> None:
+        """ServiceSummary does not have installed field."""
+        response = client.get("/services")
+        data = response.json()
+        svc = next(s for s in data if s["id"] == "test-svc")
+        assert "installed" not in svc
+
+    def test_excludes_jobs(self, client: TestClient) -> None:
+        """Jobs (scheduled items) are not in the services list."""
+        response = client.get("/services")
+        data = response.json()
+        names = [s["id"] for s in data]
+        assert "test-job" not in names
+
+
+class TestServiceDetail:
+    """GET /services/{name} endpoint tests."""
+
+    def test_get_service(self, client: TestClient) -> None:
+        """Returns detailed info for a service."""
+        response = client.get("/services/test-svc")
+        assert response.status_code == 200
+        data = response.json()
+        assert data["id"] == "test-svc"
+        assert "manifest" in data
+        assert data["manifest"]["runner"] == "python"
+
+    def test_not_found(self, client: TestClient) -> None:
+        """Returns 404 for unknown service."""
+        response = client.get("/services/nonexistent")
+        assert response.status_code == 404
+
+
+class TestJobsList:
+    """GET /jobs endpoint tests."""
+
+    def test_returns_jobs(self, client: TestClient) -> None:
+        """Returns jobs from castle.yaml."""
+        response = client.get("/jobs")
+        assert response.status_code == 200
+        data = response.json()
+        names = [j["id"] for j in data]
+        assert "test-job" in names
+
+    def test_job_has_schedule(self, client: TestClient) -> None:
+        """Job summary includes schedule."""
+        response = client.get("/jobs")
+        data = response.json()
+        job = next(j for j in data if j["id"] == "test-job")
+        assert job["schedule"] == "0 2 * * *"
+
+    def test_no_port_field(self, client: TestClient) -> None:
+        """JobSummary does not have port field."""
+        response = client.get("/jobs")
+        data = response.json()
+        job = next(j for j in data if j["id"] == "test-job")
+        assert "port" not in job
+
+    def test_excludes_services(self, client: TestClient) -> None:
+        """Services (non-scheduled) are not in the jobs list."""
+        response = client.get("/jobs")
+        data = response.json()
+        names = [j["id"] for j in data]
+        assert "test-svc" not in names
+
+
+class TestJobDetail:
+    """GET /jobs/{name} endpoint tests."""
+
+    def test_get_job(self, client: TestClient) -> None:
+        """Returns detailed info for a job."""
+        response = client.get("/jobs/test-job")
+        assert response.status_code == 200
+        data = response.json()
+        assert data["id"] == "test-job"
+        assert "manifest" in data
+        assert data["schedule"] == "0 2 * * *"
+
+    def test_not_found(self, client: TestClient) -> None:
+        """Returns 404 for unknown job."""
+        response = client.get("/jobs/nonexistent")
+        assert response.status_code == 404
+
+
+class TestProgramsList:
+    """GET /programs endpoint tests."""
+
+    def test_returns_programs(self, client: TestClient) -> None:
+        """Returns programs from castle.yaml."""
+        response = client.get("/programs")
+        assert response.status_code == 200
+        data = response.json()
+        names = [p["id"] for p in data]
+        assert "test-tool" in names
+
+    def test_program_has_behavior(self, client: TestClient) -> None:
+        """Program summary includes behavior."""
+        response = client.get("/programs")
+        data = response.json()
+        tool = next(p for p in data if p["id"] == "test-tool")
+        assert tool["behavior"] == "tool"
+
+    def test_no_port_field(self, client: TestClient) -> None:
+        """ProgramSummary does not have port field."""
+        response = client.get("/programs")
+        data = response.json()
+        tool = next(p for p in data if p["id"] == "test-tool")
+        assert "port" not in tool
+
+    def test_no_schedule_field(self, client: TestClient) -> None:
+        """ProgramSummary does not have schedule field."""
+        response = client.get("/programs")
+        data = response.json()
+        tool = next(p for p in data if p["id"] == "test-tool")
+        assert "schedule" not in tool
+
+
+class TestProgramDetail:
+    """GET /programs/{name} endpoint tests."""
+
+    def test_get_program(self, client: TestClient) -> None:
+        """Returns detailed info for a program."""
+        response = client.get("/programs/test-tool")
+        assert response.status_code == 200
+        data = response.json()
+        assert data["id"] == "test-tool"
+        assert "manifest" in data
+        assert data["behavior"] == "tool"
+
+    def test_not_found(self, client: TestClient) -> None:
+        """Returns 404 for unknown program."""
+        response = client.get("/programs/nonexistent")
+        assert response.status_code == 404
+
+
 class TestGateway:
     """Gateway info endpoint tests."""
 

castle.yaml

@@ -1,7 +1,7 @@
 gateway:
   port: 9000
 
-components:
+programs:
   central-context:
     description: Content storage API useful to get context into my data dir from anywhere
       on the LAN

cli/src/castle_cli/commands/create.py

@@ -7,7 +7,7 @@ import argparse
 from castle_cli.config import load_config, save_config
 from castle_cli.manifest import (
     CaddySpec,
-    ComponentSpec,
+    ProgramSpec,
     ExposeSpec,
     HttpExposeSpec,
     HttpInternal,
@@ -52,15 +52,15 @@ def run_create(args: argparse.Namespace) -> int:
     stack = args.stack
     behavior = STACK_DEFAULTS.get(stack)
 
-    if name in config.components or name in config.services or name in config.jobs:
+    if name in config.programs or name in config.services or name in config.jobs:
         print(f"Error: '{name}' already exists in castle.yaml")
         return 1
 
-    components_dir = config.root / "components"
-    components_dir.mkdir(exist_ok=True)
-    project_dir = components_dir / name
+    programs_dir = config.root / "programs"
+    programs_dir.mkdir(exist_ok=True)
+    project_dir = programs_dir / name
     if project_dir.exists():
-        print(f"Error: directory 'components/{name}' already exists")
+        print(f"Error: directory 'programs/{name}' already exists")
         return 1
 
     # Determine port for daemons
@@ -77,17 +77,17 @@ def run_create(args: argparse.Namespace) -> int:
         name=name,
         package_name=package_name,
         stack=stack,
-        description=args.description or f"A castle {stack} component",
+        description=args.description or f"A castle {stack} program",
         port=port,
     )
 
     # Build entries
     if behavior == "daemon":
-        # Component for software identity
-        config.components[name] = ComponentSpec(
+        # Program for software identity
+        config.programs[name] = ProgramSpec(
             id=name,
-            description=args.description or f"A castle {stack} component",
-            source=f"components/{name}",
+            description=args.description or f"A castle {stack} program",
+            source=f"programs/{name}",
             stack=stack,
         )
         # Service for deployment
@@ -105,31 +105,31 @@ def run_create(args: argparse.Namespace) -> int:
             manage=ManageSpec(systemd=SystemdSpec()),
         )
     elif behavior == "tool":
-        config.components[name] = ComponentSpec(
+        config.programs[name] = ProgramSpec(
             id=name,
-            description=args.description or f"A castle {stack} component",
-            source=f"components/{name}",
+            description=args.description or f"A castle {stack} program",
+            source=f"programs/{name}",
             stack=stack,
             tool=ToolSpec(),
             install=InstallSpec(path=PathInstallSpec(alias=name)),
         )
     else:
         # frontend or other
-        config.components[name] = ComponentSpec(
+        config.programs[name] = ProgramSpec(
             id=name,
-            description=args.description or f"A castle {stack} component",
-            source=f"components/{name}",
+            description=args.description or f"A castle {stack} program",
+            source=f"programs/{name}",
             stack=stack,
         )
 
     save_config(config)
 
-    print(f"Created {stack} component '{name}' at {project_dir}")
+    print(f"Created {stack} program '{name}' at {project_dir}")
     if port:
         print(f"  Port: {port}")
     print("  Registered in castle.yaml")
     print("\nNext steps:")
-    print(f"  cd components/{name}")
+    print(f"  cd programs/{name}")
     print("  uv sync")
     if behavior == "daemon":
         print(f"  uv run {name}  # starts on port {port}")

cli/src/castle_cli/commands/deploy.py

@@ -37,16 +37,16 @@ SYSTEMD_USER_DIR = Path.home() / ".config" / "systemd" / "user"
 
 
 def run_deploy(args: argparse.Namespace) -> int:
-    """Deploy components from castle.yaml to ~/.castle/."""
+    """Deploy from castle.yaml to ~/.castle/."""
     config = load_config()
-    target_name = getattr(args, "component", None)
+    target_name = getattr(args, "name", None)
 
     ensure_dirs()
 
     # Build node config
     node = NodeConfig(castle_root=str(config.root), gateway_port=config.gateway.port)
 
-    # Load existing registry to preserve components not being redeployed,
+    # Load existing registry to preserve entries not being redeployed,
     # or start fresh if deploying all
     if target_name and REGISTRY_PATH.exists():
         try:
@@ -96,24 +96,24 @@ def run_deploy(args: argparse.Namespace) -> int:
     # Reload systemd daemon
     subprocess.run(["systemctl", "--user", "daemon-reload"], check=False)
 
-    print(f"\nDeployed {deployed_count} component(s).")
+    print(f"\nDeployed {deployed_count} item(s).")
     print("Run 'castle services start' to start all services.")
     return 0
 
 
 def _env_prefix(name: str) -> str:
-    """Derive env var prefix from component name: central-context → CENTRAL_CONTEXT."""
+    """Derive env var prefix from name: central-context → CENTRAL_CONTEXT."""
     return name.replace("-", "_").upper()
 
 
 def _resolve_description(
     config: CastleConfig, spec: ServiceSpec | JobSpec
 ) -> str | None:
-    """Get description, falling through to component if referenced."""
+    """Get description, falling through to program if referenced."""
     if spec.description:
         return spec.description
-    if spec.component and spec.component in config.components:
-        return config.components[spec.component].description
+    if spec.component and spec.component in config.programs:
+        return config.programs[spec.component].description
     return None
 
 
@@ -155,10 +155,10 @@ def _build_deployed_service(
     if svc.proxy and svc.proxy.caddy and svc.proxy.caddy.enable:
         proxy_path = svc.proxy.caddy.path_prefix or f"/{name}"
 
-    # Resolve stack from referenced component
+    # Resolve stack from referenced program
     stack = None
-    if svc.component and svc.component in config.components:
-        stack = config.components[svc.component].stack
+    if svc.component and svc.component in config.programs:
+        stack = config.programs[svc.component].stack
 
     return DeployedComponent(
         runner=run.runner,
@@ -195,10 +195,10 @@ def _build_deployed_job(
     # Build run_cmd
     run_cmd = _build_run_cmd(run, env)
 
-    # Resolve stack from referenced component
+    # Resolve stack from referenced program
     stack = None
-    if job.component and job.component in config.components:
-        stack = config.components[job.component].stack
+    if job.component and job.component in config.programs:
+        stack = config.programs[job.component].stack
 
     return DeployedComponent(
         runner=run.runner,
@@ -275,10 +275,10 @@ def _print_deployed(name: str, deployed: DeployedComponent) -> None:
 
 def _copy_app_static(config: CastleConfig) -> None:
     """Copy castle-app build output to ~/.castle/static/castle-app/."""
-    if "castle-app" not in config.components:
+    if "castle-app" not in config.programs:
         return
 
-    comp = config.components["castle-app"]
+    comp = config.programs["castle-app"]
     if not (comp.build and comp.build.outputs):
         return
 

cli/src/castle_cli/commands/dev.py

@@ -3,37 +3,44 @@
 from __future__ import annotations
 
 import argparse
-import subprocess
-from pathlib import Path
+import asyncio
+
+from castle_core.stacks import get_handler
 
 from castle_cli.config import CastleConfig, load_config
 
 
-def _get_project_dir(config: CastleConfig, project_name: str) -> Path:
-    """Get the directory for a component."""
-    if project_name not in config.components:
-        raise ValueError(f"Unknown component: {project_name}")
-    manifest = config.components[project_name]
-    working_dir = manifest.source_dir or project_name
-    return config.root / working_dir
+def _run_action(config: CastleConfig, project_name: str, action: str) -> bool:
+    """Run a stack action for a single project. Returns True on success."""
+    if project_name not in config.programs:
+        print(f"Unknown component: {project_name}")
+        return False
 
+    comp = config.programs[project_name]
+    if not comp.source:
+        print(f"  {project_name}: no source directory, skipping")
+        return True
 
-def _has_pyproject(project_dir: Path) -> bool:
-    """Check if a project directory has a pyproject.toml."""
-    return (project_dir / "pyproject.toml").exists()
+    handler = get_handler(comp.stack)
+    if handler is None:
+        print(f"  {project_name}: unsupported stack '{comp.stack}', skipping")
+        return True
 
-
-def _run_in_project(project_dir: Path, cmd: list[str], label: str) -> bool:
-    """Run a command in a project directory. Returns True on success."""
-    if not _has_pyproject(project_dir):
-        return True  # Skip projects without pyproject.toml
+    method_name = action.replace("-", "_")
+    method = getattr(handler, method_name, None)
+    if method is None:
+        print(f"  {project_name}: action '{action}' not supported")
+        return False
 
     print(f"\n{'─' * 40}")
-    print(f"  {label}: {project_dir.name}")
+    print(f"  {action}: {project_name}")
     print(f"{'─' * 40}")
 
-    result = subprocess.run(cmd, cwd=project_dir)
-    return result.returncode == 0
+    result = asyncio.run(method(project_name, comp, config.root))
+    if result.output:
+        print(result.output)
+
+    return result.status == "ok"
 
 
 def run_test(args: argparse.Namespace) -> int:
@@ -41,34 +48,23 @@ def run_test(args: argparse.Namespace) -> int:
     config = load_config()
 
     if args.project:
-        project_dir = _get_project_dir(config, args.project)
-        tests_dir = project_dir / "tests"
-        if not tests_dir.exists():
-            print(f"No tests directory found for {args.project}")
-            return 1
-        success = _run_in_project(
-            project_dir,
-            ["uv", "run", "pytest", "tests/", "-v"],
-            "Testing",
-        )
+        success = _run_action(config, args.project, "test")
         return 0 if success else 1
 
     # Run all
     all_passed = True
-    for name, manifest in config.components.items():
-        working_dir = manifest.source_dir or name
-        project_dir = config.root / working_dir
-        tests_dir = project_dir / "tests"
-        if not tests_dir.exists():
+    for name, comp in config.programs.items():
+        if not comp.source:
             continue
-        if not _has_pyproject(project_dir):
+        handler = get_handler(comp.stack)
+        if handler is None:
             continue
-        success = _run_in_project(
-            project_dir,
-            ["uv", "run", "pytest", "tests/", "-v"],
-            "Testing",
-        )
-        if not success:
+        # Skip projects without a tests directory (python) or test script (node)
+        source_dir = config.root / comp.source
+        if comp.stack in ("python-cli", "python-fastapi"):
+            if not (source_dir / "tests").exists():
+                continue
+        if not _run_action(config, name, "test"):
             all_passed = False
 
     if all_passed:
@@ -83,27 +79,18 @@ def run_lint(args: argparse.Namespace) -> int:
     config = load_config()
 
     if args.project:
-        project_dir = _get_project_dir(config, args.project)
-        success = _run_in_project(
-            project_dir,
-            ["uv", "run", "ruff", "check", "."],
-            "Linting",
-        )
+        success = _run_action(config, args.project, "lint")
         return 0 if success else 1
 
     # Run all
     all_passed = True
-    for name, manifest in config.components.items():
-        working_dir = manifest.source_dir or name
-        project_dir = config.root / working_dir
-        if not _has_pyproject(project_dir):
+    for name, comp in config.programs.items():
+        if not comp.source:
             continue
-        success = _run_in_project(
-            project_dir,
-            ["uv", "run", "ruff", "check", "."],
-            "Linting",
-        )
-        if not success:
+        handler = get_handler(comp.stack)
+        if handler is None:
+            continue
+        if not _run_action(config, name, "lint"):
             all_passed = False
 
     if all_passed:

cli/src/castle_cli/commands/info.py

@@ -1,4 +1,4 @@
-"""castle info - show detailed component information."""
+"""castle info - show detailed program information."""
 
 from __future__ import annotations
 
@@ -17,8 +17,8 @@ GREEN = "\033[92m"
 RED = "\033[91m"
 
 
-def _load_deployed_component(name: str) -> object | None:
-    """Try to load a specific deployed component from registry."""
+def _load_deployed_program(name: str) -> object | None:
+    """Try to load a specific deployed program from registry."""
     try:
         from castle_core.registry import load_registry
 
@@ -29,23 +29,23 @@ def _load_deployed_component(name: str) -> object | None:
 
 
 def run_info(args: argparse.Namespace) -> int:
-    """Show detailed info for a component, service, or job."""
+    """Show detailed info for a program, service, or job."""
     config = load_config()
     name = args.project
 
     # Look up in all sections
-    component = config.components.get(name)
+    program = config.programs.get(name)
     service = config.services.get(name)
     job = config.jobs.get(name)
 
-    if not component and not service and not job:
+    if not program and not service and not job:
         print(f"Error: '{name}' not found in castle.yaml")
         return 1
 
-    deployed = _load_deployed_component(name)
+    deployed = _load_deployed_program(name)
 
     if getattr(args, "json", False):
-        return _info_json(config, name, component, service, job, deployed)
+        return _info_json(config, name, program, service, job, deployed)
 
     # Human-readable output
     print(f"\n{BOLD}{name}{RESET}")
@@ -56,51 +56,51 @@ def run_info(args: argparse.Namespace) -> int:
         print(f"  {BOLD}behavior{RESET}:    daemon")
     elif job:
         print(f"  {BOLD}behavior{RESET}:    tool")
-    elif component:
-        if component.tool or (component.install and component.install.path):
+    elif program:
+        if program.tool or (program.install and program.install.path):
             print(f"  {BOLD}behavior{RESET}:    tool")
-        elif component.build:
+        elif program.build:
             print(f"  {BOLD}behavior{RESET}:    frontend")
         else:
             print(f"  {BOLD}behavior{RESET}:    —")
 
     # Show stack
     stack = None
-    if component and component.stack:
-        stack = component.stack
-    elif service and service.component and service.component in config.components:
-        stack = config.components[service.component].stack
-    elif job and job.component and job.component in config.components:
-        stack = config.components[job.component].stack
+    if program and program.stack:
+        stack = program.stack
+    elif service and service.component and service.component in config.programs:
+        stack = config.programs[service.component].stack
+    elif job and job.component and job.component in config.programs:
+        stack = config.programs[job.component].stack
     if stack:
         print(f"  {BOLD}stack{RESET}:       {stack}")
 
-    # Component info
-    if component:
-        if component.description:
-            print(f"  {BOLD}description{RESET}: {component.description}")
-        if component.source:
-            print(f"  {BOLD}source{RESET}:      {component.source}")
-        if component.install and component.install.path:
-            pi = component.install.path
+    # Program info
+    if program:
+        if program.description:
+            print(f"  {BOLD}description{RESET}: {program.description}")
+        if program.source:
+            print(f"  {BOLD}source{RESET}:      {program.source}")
+        if program.install and program.install.path:
+            pi = program.install.path
             print(f"  {BOLD}install{RESET}:     path" + (f" (alias: {pi.alias})" if pi.alias else ""))
-        if component.tool:
-            t = component.tool
+        if program.tool:
+            t = program.tool
             if t.system_dependencies:
                 print(f"  {BOLD}requires{RESET}:    {', '.join(t.system_dependencies)}")
-        if component.tags:
-            print(f"  {BOLD}tags{RESET}:        {', '.join(component.tags)}")
+        if program.tags:
+            print(f"  {BOLD}tags{RESET}:        {', '.join(program.tags)}")
 
     # Service info
     spec = service or job
     if spec:
         desc = spec.description
-        if not desc and spec.component and spec.component in config.components:
-            desc = config.components[spec.component].description
-        if desc and not (component and component.description == desc):
+        if not desc and spec.component and spec.component in config.programs:
+            desc = config.programs[spec.component].description
+        if desc and not (program and program.description == desc):
             print(f"  {BOLD}description{RESET}: {desc}")
         if spec.component:
-            print(f"  {BOLD}component{RESET}:   {spec.component}")
+            print(f"  {BOLD}program{RESET}:     {spec.component}")
 
         # Run spec
         print(f"  {BOLD}runner{RESET}:      {spec.run.runner}")
@@ -154,10 +154,10 @@ def run_info(args: argparse.Namespace) -> int:
 
     # Show CLAUDE.md if it exists
     source_dir = None
-    if component and component.source_dir:
-        source_dir = component.source_dir
-    elif spec and spec.component and spec.component in config.components:
-        source_dir = config.components[spec.component].source_dir
+    if program and program.source_dir:
+        source_dir = program.source_dir
+    elif spec and spec.component and spec.component in config.programs:
+        source_dir = config.programs[spec.component].source_dir
 
     if source_dir:
         claude_md = _find_claude_md(config.root, source_dir)
@@ -173,7 +173,7 @@ def run_info(args: argparse.Namespace) -> int:
 def _info_json(
     config: object,
     name: str,
-    component: object | None,
+    program: object | None,
     service: object | None,
     job: object | None,
     deployed: object | None,
@@ -181,28 +181,28 @@ def _info_json(
     """Output JSON info."""
     data: dict = {"name": name}
 
-    if component:
-        data["component"] = component.model_dump(exclude_none=True, exclude={"id"})
+    if program:
+        data["program"] = program.model_dump(exclude_none=True, exclude={"id"})
     if service:
         data["service"] = service.model_dump(exclude_none=True, exclude={"id"})
         data["behavior"] = "daemon"
     if job:
         data["job"] = job.model_dump(exclude_none=True, exclude={"id"})
         data["behavior"] = "tool"
-    if not service and not job and component:
-        if component.tool or (component.install and component.install.path):
+    if not service and not job and program:
+        if program.tool or (program.install and program.install.path):
             data["behavior"] = "tool"
-        elif component.build:
+        elif program.build:
             data["behavior"] = "frontend"
 
     # Resolve stack
     stack = None
-    if component and component.stack:
-        stack = component.stack
-    elif service and service.component and service.component in config.components:
-        stack = config.components[service.component].stack
-    elif job and job.component and job.component in config.components:
-        stack = config.components[job.component].stack
+    if program and program.stack:
+        stack = program.stack
+    elif service and service.component and service.component in config.programs:
+        stack = config.programs[service.component].stack
+    elif job and job.component and job.component in config.programs:
+        stack = config.programs[job.component].stack
     if stack:
         data["stack"] = stack
 

cli/src/castle_cli/commands/list_cmd.py

@@ -1,4 +1,4 @@
-"""castle list - show all registered components."""
+"""castle list - show all registered programs, services, and jobs."""
 
 from __future__ import annotations
 
@@ -50,27 +50,27 @@ def _load_deployed() -> dict[str, object] | None:
 
 
 def _resolve_stack(config: object, name: str) -> str | None:
-    """Resolve stack from component reference or direct component."""
-    # Check services for component ref
+    """Resolve stack from program reference or direct program."""
+    # Check services for program ref
     if name in config.services:
         svc = config.services[name]
         comp_name = svc.component
-        if comp_name and comp_name in config.components:
-            return config.components[comp_name].stack
-    # Check jobs for component ref
+        if comp_name and comp_name in config.programs:
+            return config.programs[comp_name].stack
+    # Check jobs for program ref
     if name in config.jobs:
         job = config.jobs[name]
         comp_name = job.component
-        if comp_name and comp_name in config.components:
-            return config.components[comp_name].stack
-    # Direct component
-    if name in config.components:
-        return config.components[name].stack
+        if comp_name and comp_name in config.programs:
+            return config.programs[comp_name].stack
+    # Direct program
+    if name in config.programs:
+        return config.programs[name].stack
     return None
 
 
 def run_list(args: argparse.Namespace) -> int:
-    """List all components, services, and jobs."""
+    """List all programs, services, and jobs."""
     config = load_config()
     deployed = _load_deployed()
 
@@ -123,12 +123,12 @@ def run_list(args: argparse.Namespace) -> int:
                 sched = f"  {DIM}[{job.schedule}]{RESET}"
                 print(f"  {status} {BOLD}{name}{RESET}{sched}{desc}")
 
-    # Components (tools, frontends, etc.)
+    # Programs (tools, frontends, etc.)
     show_tools = not filter_behavior or filter_behavior == "tool"
     show_frontends = not filter_behavior or filter_behavior == "frontend"
 
     if show_tools or show_frontends:
-        # Collect non-daemon components
+        # Collect non-daemon programs
         comps: dict[str, tuple[str, str | None, str | None]] = {}
 
         if show_tools:
@@ -147,7 +147,7 @@ def run_list(args: argparse.Namespace) -> int:
         if comps:
             any_output = True
             color = CYAN
-            print(f"\n{BOLD}{color}Components{RESET}")
+            print(f"\n{BOLD}{color}Programs{RESET}")
             print(f"{color}{'─' * 40}{RESET}")
             for name, (behavior, stack, description) in comps.items():
                 stack_str = f"  {DIM}{stack}{RESET}" if stack else ""
@@ -156,7 +156,7 @@ def run_list(args: argparse.Namespace) -> int:
                 print(f"  {BOLD}{name}{RESET}{stack_str}{behavior_str}{desc}")
 
     if not any_output:
-        print("No components found.")
+        print("No programs found.")
 
     if deployed is None:
         print(f"\n{DIM}(no registry — run 'castle deploy' to generate){RESET}")

cli/src/castle_cli/commands/sync.py

@@ -28,7 +28,7 @@ def run_sync(args: argparse.Namespace) -> int:
     all_ok = True
     synced_dirs: set[Path] = set()
 
-    for name, comp in config.components.items():
+    for name, comp in config.programs.items():
         source_dir = comp.source_dir
         if not source_dir:
             continue
@@ -63,7 +63,7 @@ def run_sync(args: argparse.Namespace) -> int:
     installed_dirs: set[Path] = set()
 
     # Install components with install.path
-    for name, comp in config.components.items():
+    for name, comp in config.programs.items():
         if not (comp.install and comp.install.path):
             continue
         source = comp.source_dir
@@ -77,8 +77,8 @@ def run_sync(args: argparse.Namespace) -> int:
             continue
         # Find source from component reference
         source = None
-        if svc.component and svc.component in config.components:
-            source = config.components[svc.component].source_dir
+        if svc.component and svc.component in config.programs:
+            source = config.programs[svc.component].source_dir
         if not source:
             continue
         source_dir = config.root / source

cli/src/castle_cli/commands/tool.py

@@ -29,7 +29,7 @@ def run_tool(args: argparse.Namespace) -> int:
 def _tool_list() -> int:
     """List all registered tools."""
     config = load_config()
-    tools = {k: v for k, v in config.components.items() if v.tool}
+    tools = {k: v for k, v in config.programs.items() if v.tool}
 
     if not tools:
         print("No tools registered.")
@@ -51,11 +51,11 @@ def _tool_list() -> int:
 def _tool_info(name: str) -> int:
     """Show detailed info about a tool, including .md documentation."""
     config = load_config()
-    if name not in config.components:
+    if name not in config.programs:
         print(f"Error: '{name}' not found")
         return 1
 
-    manifest = config.components[name]
+    manifest = config.programs[name]
     if not manifest.tool:
         print(f"Error: '{name}' is not a tool")
         return 1

cli/src/castle_cli/main.py

@@ -19,7 +19,7 @@ def build_parser() -> argparse.ArgumentParser:
     subparsers = parser.add_subparsers(dest="command", help="Available commands")
 
     # castle list
-    list_parser = subparsers.add_parser("list", help="List all components")
+    list_parser = subparsers.add_parser("list", help="List all programs, services, and jobs")
     list_parser.add_argument(
         "--behavior",
         choices=["daemon", "tool", "frontend"],
@@ -43,8 +43,8 @@ def build_parser() -> argparse.ArgumentParser:
     create_parser.add_argument("--description", default="", help="Project description")
     create_parser.add_argument("--port", type=int, help="Port number (daemons only)")
     # castle info
-    info_parser = subparsers.add_parser("info", help="Show component details")
-    info_parser.add_argument("project", help="Component name")
+    info_parser = subparsers.add_parser("info", help="Show program details")
+    info_parser.add_argument("project", help="Program, service, or job name")
     info_parser.add_argument("--json", action="store_true", help="Output as JSON")
 
     # castle test
@@ -91,25 +91,25 @@ def build_parser() -> argparse.ArgumentParser:
     services_sub.add_parser("stop", help="Stop all services and gateway")
 
     # castle logs
-    logs_parser = subparsers.add_parser("logs", help="View component logs")
-    logs_parser.add_argument("name", help="Component name")
+    logs_parser = subparsers.add_parser("logs", help="View service/job logs")
+    logs_parser.add_argument("name", help="Service or job name")
     logs_parser.add_argument("-f", "--follow", action="store_true", help="Follow log output")
     logs_parser.add_argument(
         "-n", "--lines", type=int, default=50, help="Number of lines to show (default: 50)"
     )
 
     # castle run
-    run_parser = subparsers.add_parser("run", help="Run a component in the foreground")
-    run_parser.add_argument("name", help="Component name")
+    run_parser = subparsers.add_parser("run", help="Run a service in the foreground")
+    run_parser.add_argument("name", help="Service name")
     run_parser.add_argument(
-        "extra", nargs=argparse.REMAINDER, help="Extra arguments passed to the component"
+        "extra", nargs=argparse.REMAINDER, help="Extra arguments passed to the service"
     )
 
     # castle deploy
     deploy_parser = subparsers.add_parser(
-        "deploy", help="Deploy components to ~/.castle/ (spec → runtime)"
+        "deploy", help="Deploy to ~/.castle/ (spec → runtime)"
     )
-    deploy_parser.add_argument("component", nargs="?", help="Component to deploy (default: all)")
+    deploy_parser.add_argument("name", nargs="?", help="Service or job to deploy (default: all)")
 
     # castle tool
     tool_parser = subparsers.add_parser("tool", help="Manage tools")

cli/src/castle_cli/manifest.py

@@ -5,7 +5,7 @@ from castle_core.manifest import (  # noqa: F401 — explicit re-exports for typ
     BuildSpec,
     CaddySpec,
     Capability,
-    ComponentSpec,
+    ProgramSpec,
     DefaultsSpec,
     EnvMap,
     ExposeSpec,

cli/tests/test_create.py

@@ -32,7 +32,7 @@ class TestCreateCommand:
             result = run_create(args)
 
         assert result == 0
-        project_dir = castle_root / "components" / "my-api"
+        project_dir = castle_root / "programs" / "my-api"
         assert project_dir.exists()
         assert (project_dir / "pyproject.toml").exists()
         assert (project_dir / "src" / "my_api" / "main.py").exists()
@@ -41,8 +41,8 @@ class TestCreateCommand:
         assert (project_dir / "tests" / "test_health.py").exists()
         assert (project_dir / "CLAUDE.md").exists()
 
-        # Verify registered as ComponentSpec + ServiceSpec
-        assert "my-api" in config.components
+        # Verify registered as ProgramSpec + ServiceSpec
+        assert "my-api" in config.programs
         assert "my-api" in config.services
         svc = config.services["my-api"]
         assert svc.expose.http.internal.port == 9050
@@ -64,12 +64,12 @@ class TestCreateCommand:
             result = run_create(args)
 
         assert result == 0
-        project_dir = castle_root / "components" / "my-tool2"
+        project_dir = castle_root / "programs" / "my-tool2"
         assert project_dir.exists()
         assert (project_dir / "src" / "my_tool2" / "main.py").exists()
         assert (project_dir / "CLAUDE.md").exists()
-        assert "my-tool2" in config.components
-        comp = config.components["my-tool2"]
+        assert "my-tool2" in config.programs
+        comp = config.programs["my-tool2"]
         assert comp.tool is not None
         assert comp.install is not None
 

components/docx-extractor/uv.lock

@@ -0,0 +1,8 @@
+version = 1
+revision = 3
+requires-python = ">=3.11"
+
+[[package]]
+name = "docx-extractor"
+version = "0.1.0"
+source = { editable = "." }

core/src/castle_core/config.py

@@ -9,7 +9,7 @@ from pathlib import Path
 
 import yaml
 
-from castle_core.manifest import ComponentSpec, JobSpec, ServiceSpec
+from castle_core.manifest import ProgramSpec, JobSpec, ServiceSpec
 
 
 def find_castle_root() -> Path:
@@ -47,25 +47,25 @@ class CastleConfig:
 
     root: Path
     gateway: GatewayConfig
-    components: dict[str, ComponentSpec]
+    programs: dict[str, ProgramSpec]
     services: dict[str, ServiceSpec]
     jobs: dict[str, JobSpec]
 
     @property
-    def tools(self) -> dict[str, ComponentSpec]:
-        """Return components that are tools (have install.path or tool spec)."""
+    def tools(self) -> dict[str, ProgramSpec]:
+        """Return programs that are tools (have install.path or tool spec)."""
         return {
             k: v
-            for k, v in self.components.items()
+            for k, v in self.programs.items()
             if (v.install and v.install.path) or v.tool
         }
 
     @property
-    def frontends(self) -> dict[str, ComponentSpec]:
-        """Return components that are frontends (have build outputs)."""
+    def frontends(self) -> dict[str, ProgramSpec]:
+        """Return programs that are frontends (have build outputs)."""
         return {
             k: v
-            for k, v in self.components.items()
+            for k, v in self.programs.items()
             if v.build and (v.build.outputs or v.build.commands)
         }
 
@@ -94,11 +94,11 @@ def _read_secret(name: str) -> str:
     return f"<MISSING_SECRET:{name}>"
 
 
-def _parse_component(name: str, data: dict) -> ComponentSpec:
-    """Parse a components: entry into a ComponentSpec."""
+def _parse_program(name: str, data: dict) -> ProgramSpec:
+    """Parse a programs: entry into a ProgramSpec."""
     data_copy = dict(data)
     data_copy["id"] = name
-    return ComponentSpec.model_validate(data_copy)
+    return ProgramSpec.model_validate(data_copy)
 
 
 def _parse_service(name: str, data: dict) -> ServiceSpec:
@@ -130,9 +130,11 @@ def load_config(root: Path | None = None) -> CastleConfig:
     gateway_data = data.get("gateway", {})
     gateway = GatewayConfig(port=gateway_data.get("port", 9000))
 
-    components: dict[str, ComponentSpec] = {}
-    for name, comp_data in data.get("components", {}).items():
-        components[name] = _parse_component(name, comp_data)
+    programs: dict[str, ProgramSpec] = {}
+    # Support both "programs:" and legacy "components:" key
+    programs_data = data.get("programs") or data.get("components") or {}
+    for name, comp_data in programs_data.items():
+        programs[name] = _parse_program(name, comp_data)
 
     services: dict[str, ServiceSpec] = {}
     for name, svc_data in data.get("services", {}).items():
@@ -145,7 +147,7 @@ def load_config(root: Path | None = None) -> CastleConfig:
     return CastleConfig(
         root=root,
         gateway=gateway,
-        components=components,
+        programs=programs,
         services=services,
         jobs=jobs,
     )
@@ -187,7 +189,7 @@ _STRUCTURAL_KEYS = {
 }
 
 
-def _spec_to_yaml_dict(spec: ComponentSpec | ServiceSpec | JobSpec) -> dict:
+def _spec_to_yaml_dict(spec: ProgramSpec | ServiceSpec | JobSpec) -> dict:
     """Serialize a spec to a YAML-friendly dict, preserving structural presence."""
     exclude_fields = {"id"}
     full = spec.model_dump(mode="json", exclude_none=True, exclude=exclude_fields)
@@ -228,10 +230,10 @@ def save_config(config: CastleConfig) -> None:
     """Save castle configuration to castle.yaml."""
     data: dict = {"gateway": {"port": config.gateway.port}}
 
-    if config.components:
-        data["components"] = {}
-        for name, spec in config.components.items():
-            data["components"][name] = _spec_to_yaml_dict(spec)
+    if config.programs:
+        data["programs"] = {}
+        for name, spec in config.programs.items():
+            data["programs"][name] = _spec_to_yaml_dict(spec)
 
     if config.services:
         data["services"] = {}

core/src/castle_core/manifest.py

@@ -1,4 +1,4 @@
-"""Castle manifest models — component specs, service specs, job specs."""
+"""Castle manifest models — program specs, service specs, job specs."""
 
 from __future__ import annotations
 
@@ -197,11 +197,11 @@ class DefaultsSpec(BaseModel):
 
 
 # ---------------------
-# Component spec — software identity
+# Program spec — software identity
 # ---------------------
 
 
-class ComponentSpec(BaseModel):
+class ProgramSpec(BaseModel):
     """Software catalog entry — what exists."""
 
     id: str = ""

core/src/castle_core/stacks.py

@@ -0,0 +1,260 @@
+"""Stack protocol — lifecycle actions for each development stack."""
+
+from __future__ import annotations
+
+import asyncio
+import os
+import shutil
+import tomllib
+from dataclasses import dataclass
+from pathlib import Path
+
+from castle_core.config import STATIC_DIR
+from castle_core.manifest import ProgramSpec
+
+DEV_ACTIONS = ["build", "test", "lint", "type-check", "check"]
+INSTALL_ACTIONS = ["install", "uninstall"]
+ALL_ACTIONS = DEV_ACTIONS + INSTALL_ACTIONS
+
+# User-local tool directories that may not be on the systemd service PATH.
+_EXTRA_PATH_DIRS = [
+    Path.home() / ".local" / "share" / "pnpm",
+    Path.home() / ".local" / "bin",
+]
+
+
+@dataclass
+class ActionResult:
+    """Result of a stack lifecycle action."""
+
+    component: str
+    action: str
+    status: str  # "ok" | "error"
+    output: str = ""
+
+
+def _build_env() -> dict[str, str]:
+    """Build a subprocess env with user tool dirs on PATH."""
+    env = os.environ.copy()
+    extra = ":".join(str(d) for d in _EXTRA_PATH_DIRS if d.exists())
+    if extra:
+        env["PATH"] = extra + ":" + env.get("PATH", "")
+    return env
+
+
+async def _run(cmd: list[str], cwd: Path) -> tuple[int, str]:
+    """Run a subprocess and return (returncode, combined output)."""
+    proc = await asyncio.create_subprocess_exec(
+        *cmd,
+        cwd=cwd,
+        env=_build_env(),
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.STDOUT,
+    )
+    stdout, _ = await proc.communicate()
+    return proc.returncode or 0, (stdout or b"").decode()
+
+
+def _source_dir(comp: ProgramSpec, root: Path) -> Path:
+    """Resolve source directory, raising ValueError if absent."""
+    if not comp.source:
+        raise ValueError("No source directory")
+    return root / comp.source
+
+
+class StackHandler:
+    """Base class — subclasses implement each lifecycle action."""
+
+    async def build(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        raise NotImplementedError
+
+    async def test(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        raise NotImplementedError
+
+    async def lint(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        raise NotImplementedError
+
+    async def type_check(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        raise NotImplementedError
+
+    async def check(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        """Composite: lint + type-check + test. Runs all, reports first failure."""
+        for action_fn, action_name in [
+            (self.lint, "lint"),
+            (self.type_check, "type-check"),
+            (self.test, "test"),
+        ]:
+            result = await action_fn(name, comp, root)
+            if result.status != "ok":
+                return ActionResult(
+                    component=name,
+                    action="check",
+                    status="error",
+                    output=f"{action_name} failed:\n{result.output}",
+                )
+        return ActionResult(component=name, action="check", status="ok")
+
+    async def install(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        raise NotImplementedError
+
+    async def uninstall(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        raise NotImplementedError
+
+
+class PythonHandler(StackHandler):
+    """Handler for python-cli and python-fastapi stacks."""
+
+    async def build(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["uv", "sync"], src)
+        return ActionResult(
+            component=name, action="build", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def test(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        if not (src / "tests").exists():
+            return ActionResult(
+                component=name, action="test", status="ok",
+                output="No tests directory found, skipping.",
+            )
+        rc, output = await _run(["uv", "run", "pytest", "tests/", "-v"], src)
+        return ActionResult(
+            component=name, action="test", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def lint(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["uv", "run", "ruff", "check", "."], src)
+        return ActionResult(
+            component=name, action="lint", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def type_check(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["uv", "run", "pyright"], src)
+        return ActionResult(
+            component=name, action="type-check", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def install(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(
+            ["uv", "tool", "install", "--editable", str(src), "--force"], src
+        )
+        return ActionResult(
+            component=name, action="install", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def uninstall(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        pkg_name = src.name
+        pyproject = src / "pyproject.toml"
+        if pyproject.exists():
+            with open(pyproject, "rb") as f:
+                data = tomllib.load(f)
+            pkg_name = data.get("project", {}).get("name", pkg_name)
+        rc, output = await _run(["uv", "tool", "uninstall", pkg_name], src)
+        return ActionResult(
+            component=name, action="uninstall", status="ok" if rc == 0 else "error", output=output
+        )
+
+
+class ReactViteHandler(StackHandler):
+    """Handler for react-vite stack."""
+
+    async def build(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["pnpm", "build"], src)
+        return ActionResult(
+            component=name, action="build", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def test(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["pnpm", "test"], src)
+        return ActionResult(
+            component=name, action="test", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def lint(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["pnpm", "lint"], src)
+        return ActionResult(
+            component=name, action="lint", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def type_check(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        src = _source_dir(comp, root)
+        rc, output = await _run(["pnpm", "type-check"], src)
+        return ActionResult(
+            component=name, action="type-check", status="ok" if rc == 0 else "error", output=output
+        )
+
+    async def install(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        """Build and copy static assets to ~/.castle/static/{name}/."""
+        result = await self.build(name, comp, root)
+        if result.status != "ok":
+            return ActionResult(
+                component=name, action="install", status="error",
+                output=f"Build failed:\n{result.output}",
+            )
+
+        src = _source_dir(comp, root)
+        outputs = comp.build.outputs if comp.build else []
+        if not outputs:
+            return ActionResult(
+                component=name, action="install", status="error",
+                output="No build outputs configured.",
+            )
+
+        for output_dir in outputs:
+            src_path = src / output_dir
+            if src_path.exists():
+                dest = STATIC_DIR / name
+                if dest.exists():
+                    shutil.rmtree(dest)
+                shutil.copytree(src_path, dest)
+
+        return ActionResult(
+            component=name, action="install", status="ok",
+            output=f"Built and deployed to {STATIC_DIR / name}",
+        )
+
+    async def uninstall(self, name: str, comp: ProgramSpec, root: Path) -> ActionResult:
+        """Remove static assets from ~/.castle/static/{name}/."""
+        dest = STATIC_DIR / name
+        if dest.exists():
+            shutil.rmtree(dest)
+            return ActionResult(
+                component=name, action="uninstall", status="ok",
+                output=f"Removed {dest}",
+            )
+        return ActionResult(
+            component=name, action="uninstall", status="ok",
+            output=f"Nothing to remove ({dest} does not exist)",
+        )
+
+
+HANDLERS: dict[str, StackHandler] = {
+    "python-cli": PythonHandler(),
+    "python-fastapi": PythonHandler(),
+    "react-vite": ReactViteHandler(),
+}
+
+
+def get_handler(stack: str | None) -> StackHandler | None:
+    """Get the handler for a given stack, or None if unsupported."""
+    if stack is None:
+        return None
+    return HANDLERS.get(stack)
+
+
+def available_actions(comp: ProgramSpec) -> list[str]:
+    """Return the list of actions available for a program."""
+    if not comp.source:
+        return []
+    handler = get_handler(comp.stack)
+    if handler is None:
+        return []
+    return list(ALL_ACTIONS)

core/tests/test_config.py

@@ -11,7 +11,7 @@ from castle_core.config import (
     resolve_env_vars,
     save_config,
 )
-from castle_core.manifest import ComponentSpec, JobSpec, ServiceSpec
+from castle_core.manifest import ProgramSpec, JobSpec, ServiceSpec
 
 
 class TestLoadConfig:
@@ -22,14 +22,14 @@ class TestLoadConfig:
         config = load_config(castle_root)
         assert isinstance(config, CastleConfig)
         assert config.gateway.port == 18000
-        assert "test-tool" in config.components
+        assert "test-tool" in config.programs
         assert "test-svc" in config.services
         assert "test-job" in config.jobs
 
     def test_load_produces_typed_specs(self, castle_root: Path) -> None:
         """Each section produces the correct spec type."""
         config = load_config(castle_root)
-        assert isinstance(config.components["test-tool"], ComponentSpec)
+        assert isinstance(config.programs["test-tool"], ProgramSpec)
         assert isinstance(config.services["test-svc"], ServiceSpec)
         assert isinstance(config.jobs["test-job"], JobSpec)
 
@@ -86,21 +86,21 @@ class TestSaveConfig:
         config2 = load_config(castle_root)
 
         assert config2.gateway.port == config.gateway.port
-        assert set(config2.components.keys()) == set(config.components.keys())
+        assert set(config2.programs.keys()) == set(config.programs.keys())
         assert set(config2.services.keys()) == set(config.services.keys())
         assert set(config2.jobs.keys()) == set(config.jobs.keys())
 
     def test_save_adds_component(self, castle_root: Path) -> None:
         """Adding a component and saving persists it."""
         config = load_config(castle_root)
-        config.components["new-lib"] = ComponentSpec(
+        config.programs["new-lib"] = ProgramSpec(
             id="new-lib", description="A new library"
         )
         save_config(config)
 
         config2 = load_config(castle_root)
-        assert "new-lib" in config2.components
-        assert config2.components["new-lib"].description == "A new library"
+        assert "new-lib" in config2.programs
+        assert config2.programs["new-lib"].description == "A new library"
 
     def test_preserves_manage_systemd(self, castle_root: Path) -> None:
         """Roundtrip preserves manage.systemd even with all defaults."""

core/tests/test_manifest.py

@@ -6,7 +6,7 @@ import pytest
 from castle_core.manifest import (
     BuildSpec,
     CaddySpec,
-    ComponentSpec,
+    ProgramSpec,
     ExposeSpec,
     HttpExposeSpec,
     HttpInternal,
@@ -24,12 +24,12 @@ from castle_core.manifest import (
 )
 
 
-class TestComponentSpec:
+class TestProgramSpec:
     """Tests for component (software catalog) model."""
 
     def test_minimal(self) -> None:
         """Minimal component just needs an id."""
-        c = ComponentSpec(id="bare")
+        c = ProgramSpec(id="bare")
         assert c.description is None
         assert c.source is None
         assert c.install is None
@@ -38,7 +38,7 @@ class TestComponentSpec:
 
     def test_tool_component(self) -> None:
         """Component with tool and install specs."""
-        c = ComponentSpec(
+        c = ProgramSpec(
             id="my-tool",
             description="A tool",
             source="my-tool/",
@@ -50,7 +50,7 @@ class TestComponentSpec:
 
     def test_frontend_component(self) -> None:
         """Component with build spec."""
-        c = ComponentSpec(
+        c = ProgramSpec(
             id="my-app",
             build=BuildSpec(commands=[["pnpm", "build"]], outputs=["dist/"]),
         )
@@ -58,12 +58,12 @@ class TestComponentSpec:
 
     def test_source_dir_from_source(self) -> None:
         """source_dir uses source field."""
-        c = ComponentSpec(id="x", source="components/x/")
+        c = ProgramSpec(id="x", source="components/x/")
         assert c.source_dir == "components/x"
 
     def test_source_dir_none(self) -> None:
         """source_dir returns None when no source available."""
-        c = ComponentSpec(id="x")
+        c = ProgramSpec(id="x")
         assert c.source_dir is None
 
 
@@ -171,7 +171,7 @@ class TestModelSerialization:
 
     def test_dump_component_excludes_none(self) -> None:
         """model_dump with exclude_none drops None fields."""
-        c = ComponentSpec(id="test", description="Test")
+        c = ProgramSpec(id="test", description="Test")
         data = c.model_dump(exclude_none=True, exclude={"id"})
         assert "description" in data
         assert "install" not in data

docs/component-registry.md

@@ -1,21 +1,21 @@
-# Component Registry
+# Registry
 
-How castle tracks, configures, and manages components. This is the central
-reference for `castle.yaml` structure and the registry architecture.
+How castle tracks, configures, and manages programs, services, and jobs.
+This is the central reference for `castle.yaml` structure and the registry
+architecture.
 
 ## castle.yaml
 
-The single source of truth for all components. Lives at the repo root.
-Three top-level sections:
+The single source of truth. Lives at the repo root. Three top-level sections:
 
 ```yaml
 gateway:
   port: 9000
 
-components:
+programs:
   my-tool:
     description: Does something useful
-    source: components/my-tool
+    source: programs/my-tool
     install:
       path: { alias: my-tool }
     tool:
@@ -51,22 +51,22 @@ jobs:
 
 | Section | Purpose | Category |
 |---------|---------|----------|
-| `components:` | Software catalog — what exists | tool, frontend, component |
+| `programs:` | Software catalog — what exists | tool, frontend, program |
 | `services:` | Long-running daemons — how they run | service |
 | `jobs:` | Scheduled tasks — when they run | job |
 
-Services and jobs can reference a component via `component:` for description
+Services and jobs can reference a program via `component:` for description
 fallthrough and source code linking. They can also exist independently
 (e.g., `castle-gateway` runs Caddy — not our software).
 
-## Component blocks
+## Program blocks
 
-Components define **what software exists** — identity, source, tools, builds.
+Programs define **what software exists** — identity, source, tools, builds.
 
 ### `source` — Where the source lives
 
 ```yaml
-source: components/my-tool
+source: programs/my-tool
 ```
 
 Relative path from repo root to the project directory.
@@ -92,7 +92,7 @@ tool:
 
 This block provides metadata for `castle tool list` and the dashboard.
 It's separate from `install` (which handles PATH registration). The source
-directory is set via the top-level `source` field on the component, not here.
+directory is set via the top-level `source` field on the program, not here.
 
 ### `build` — How to build it
 
@@ -203,7 +203,7 @@ Castle generates a systemd `.timer` file alongside the `.service` unit.
 Jobs also support `run` (required), `manage`, and `defaults` — same
 semantics as services.
 
-## Registering a new component
+## Registering a new program
 
 ### Via `castle create` (recommended)
 
@@ -211,7 +211,7 @@ semantics as services.
 # Service — scaffolds project, assigns port, registers in castle.yaml
 castle create my-service --stack python-fastapi --description "Does something"
 
-# Tool — scaffolds under components/
+# Tool — scaffolds under programs/
 castle create my-tool --stack python-cli --description "Does something"
 ```
 
@@ -220,20 +220,20 @@ castle create my-tool --stack python-cli --description "Does something"
 Add entries to the appropriate sections of `castle.yaml`:
 
 ```yaml
-# Tool — only needs a component entry
-components:
+# Tool — only needs a program entry
+programs:
   my-tool:
     description: Does something useful
-    source: components/my-tool
+    source: programs/my-tool
     install:
       path:
         alias: my-tool
 
-# Service — needs both component and service entries
-components:
+# Service — needs both program and service entries
+programs:
   my-service:
     description: Does something useful
-    source: components/my-service
+    source: programs/my-service
 
 services:
   my-service:
@@ -257,7 +257,7 @@ services:
 
 ```bash
 castle create my-service --stack python-fastapi   # 1. Scaffold + register
-cd components/my-service && uv sync       # 2. Install deps
+cd programs/my-service && uv sync         # 2. Install deps
 # ... implement ...
 castle test my-service                    # 3. Run tests
 castle service enable my-service          # 4. Generate systemd unit, start
@@ -277,10 +277,10 @@ castle service disable my-service # Stop and remove systemd unit
 
 ```bash
 castle create my-tool --stack python-cli        # 1. Scaffold + register
-cd components/my-tool && uv sync         # 2. Install deps
+cd programs/my-tool && uv sync           # 2. Install deps
 # ... implement ...
 castle test my-tool                      # 3. Run tests
-uv tool install --editable components/my-tool/  # 4. Install to PATH
+uv tool install --editable programs/my-tool/    # 4. Install to PATH
 ```
 
 ### Job lifecycle
@@ -306,7 +306,7 @@ and a `.timer` file.
 
 | What | Where |
 |------|-------|
-| Component registry | `castle.yaml` (repo root) |
+| Registry | `castle.yaml` (repo root) |
 | Service data | `/data/castle/<name>/` |
 | Secrets | `~/.castle/secrets/<NAME>` |
 | Generated Caddyfile | `~/.castle/generated/Caddyfile` |
@@ -317,7 +317,7 @@ and a `.timer` file.
 
 The Pydantic models live in `core/src/castle_core/manifest.py`. Key classes:
 
-- `ComponentSpec` — software catalog entry (source, install, tool, build)
+- `ProgramSpec` — software catalog entry (source, install, tool, build)
 - `ServiceSpec` — long-running daemon (run, expose, proxy, manage, defaults)
 - `JobSpec` — scheduled task (run, schedule, manage, defaults)
 - `RunSpec` — discriminated union (RunPython, RunCommand, RunContainer, RunNode, RunRemote)
@@ -325,7 +325,7 @@ The Pydantic models live in `core/src/castle_core/manifest.py`. Key classes:
 - `CaddySpec`, `SystemdSpec`, `HttpExposeSpec`, `HttpInternal`
 
 Config loading: `core/src/castle_core/config.py` — `load_config()` parses
-castle.yaml into `CastleConfig` with typed `components`, `services`, and
+castle.yaml into `CastleConfig` with typed `programs`, `services`, and
 `jobs` dicts.
 
 Infrastructure generators: `core/src/castle_core/generators/` — systemd unit/timer

docs/design.md

@@ -153,7 +153,7 @@ These map to two files:
 **`castle.yaml`** (in the repo, version-controlled) — Three sections:
 
 ```yaml
-components:
+programs:
   central-context:
     description: Content storage API
     source: components/central-context
@@ -185,7 +185,7 @@ jobs:
       systemd: {}
 ```
 
-Components define *what software exists* (identity, source, install, tools).
+Programs define *what software exists* (identity, source, install, tools).
 Services define *how daemons run* (run config, expose, proxy, systemd).
 Jobs define *how scheduled tasks run* (run config, cron schedule, systemd).
 

docs/stacks/python-cli.md

@@ -314,7 +314,7 @@ uv run ruff format .        # Format
 ## Registering in castle.yaml
 
 ```yaml
-components:
+programs:
   my-tool:
     description: Does something useful
     source: components/my-tool
@@ -326,7 +326,7 @@ components:
 Tools with system dependencies declare them in the component:
 
 ```yaml
-components:
+programs:
   pdf2md:
     description: Convert PDF files to Markdown
     source: components/pdf2md
@@ -337,7 +337,7 @@ components:
       system_dependencies: [pandoc, poppler-utils]
 ```
 
-Tools live in the `components:` section. If a tool also runs on a schedule,
+Tools live in the `programs:` section. If a tool also runs on a schedule,
 add a separate entry in the `jobs:` section referencing the component.
 
 See @docs/component-registry.md for the full registry reference.

docs/stacks/python-fastapi.md

@@ -99,7 +99,7 @@ settings = Settings()
 Castle passes config via env vars in castle.yaml:
 
 ```yaml
-components:
+programs:
   my-service:
     description: Does something useful
     source: components/my-service

docs/stacks/react-vite.md

@@ -108,12 +108,12 @@ The `build` output is a static SPA in `dist/` — just HTML, JS, and CSS files.
 ## Registering as a castle component
 
 A frontend component has a `build` spec (produces static output). Register it
-in the `components:` section of `castle.yaml`. No `run` block needed if Caddy
+in the `programs:` section of `castle.yaml`. No `run` block needed if Caddy
 handles serving directly from the build output.
 
 ```yaml
 # castle.yaml
-components:
+programs:
   my-frontend:
     description: Web dashboard
     source: components/my-frontend