refactor: update tools handling and improve CLI documentation

README.md

@@ -33,9 +33,6 @@ castle gateway reload
 
 # Standalone tool — CLI tool with argparse, stdin/stdout, Unix pipes
 castle create my-tool --type tool --description "Does something"
-
-# Category tool — adds to existing tools/<category>/ package
-castle create my-tool --type tool --category document --description "Converts something"
 ```
 
 ## CLI Reference
@@ -53,8 +50,8 @@ castle gateway start|stop|reload      Manage Caddy reverse proxy
 castle service enable|disable NAME    Manage a systemd service
 castle service status                 Show all service statuses
 castle services start|stop            Start/stop everything
-castle tool list                      List tools grouped by category
-castle tool info NAME                 Show tool details + docs
+castle tool list                      List all tools
+castle tool info NAME                 Show tool details
 ```
 
 ## Registry
@@ -96,7 +93,7 @@ central-context/     <- content storage API (git submodule)
 notification-bridge/ <- desktop notification forwarder (git submodule)
 protonmail/          <- email sync tool/job
 devbox-connect/      <- SSH tunnel manager
-tools/               <- category tool packages (document/, search/, system/, etc.)
+pdf2md/              <- standalone tool (each tool is its own project)
 ruff.toml            <- shared lint config
 pyrightconfig.json   <- shared type checking config
 ```
@@ -130,24 +127,23 @@ pyrightconfig.json   <- shared type checking config
 
 ### Tools
 
-| Tool | Category | Description |
-|------|----------|-------------|
-| docx2md | document | Convert Word .docx to Markdown |
-| pdf2md | document | Convert PDF to Markdown |
-| html2text | document | Convert HTML to plain text |
-| md2pdf | document | Convert Markdown to PDF |
-| mbox2eml | document | Convert MBOX mailboxes to .eml files |
-| search | search | Manage searchable file collections |
-| docx-extractor | search | Extract content from Word files |
-| pdf-extractor | search | Extract content from PDF files |
-| text-extractor | search | Extract content from text files |
-| schedule | system | Manage systemd user timers |
-| backup-collect | system | Collect files for backup |
-| android-backup | android | Backup Android devices via ADB |
-| browser | browser | Browse the web via browser-use |
-| gpt | gpt | OpenAI text generation |
-| mdscraper | mdscraper | Combine text files into markdown |
-| devbox-connect | standalone | SSH tunnel manager |
+| Tool | Description |
+|------|-------------|
+| android-backup | Backup Android devices via ADB |
+| browser | Browse the web via browser-use |
+| devbox-connect | SSH tunnel manager |
+| docx-extractor | Extract content from Word files |
+| docx2md | Convert Word .docx to Markdown |
+| gpt | OpenAI text generation |
+| html2text | Convert HTML to plain text |
+| mbox2eml | Convert MBOX mailboxes to .eml files |
+| md2pdf | Convert Markdown to PDF |
+| mdscraper | Combine text files into markdown |
+| pdf-extractor | Extract content from PDF files |
+| pdf2md | Convert PDF to Markdown |
+| schedule | Manage systemd user timers |
+| search | Manage searchable file collections |
+| text-extractor | Extract content from text files |
 
 ### Frontends
 

app/src/pages/Tools.tsx

@@ -4,7 +4,7 @@ import { useTools } from "@/services/api/hooks"
 import { ToolCard } from "@/components/ToolCard"
 
 export function ToolsPage() {
-  const { data: categories, isLoading } = useTools()
+  const { data: tools, isLoading } = useTools()
 
   return (
     <div className="max-w-6xl mx-auto px-6 py-8">
@@ -14,26 +14,17 @@ export function ToolsPage() {
 
       <h1 className="text-3xl font-bold mb-2">Tools</h1>
       <p className="text-sm text-[var(--muted)] mb-8">
-        CLI utilities grouped by category. Each tool is installed to PATH via castle and run with uv.
+        CLI utilities installed to PATH via castle and run with uv.
       </p>
 
       {isLoading ? (
         <p className="text-[var(--muted)]">Loading tools...</p>
-      ) : categories?.length ? (
-        <div className="space-y-8">
-          {categories.map((cat) => (
-            <section key={cat.name}>
-              <h2 className="text-lg font-semibold mb-3 text-[var(--muted)]">
-                {cat.name}
-              </h2>
+      ) : tools?.length ? (
         <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
-                {cat.tools.map((tool) => (
+          {tools.map((tool) => (
             <ToolCard key={tool.id} tool={tool} />
           ))}
         </div>
-            </section>
-          ))}
-        </div>
       ) : (
         <p className="text-[var(--muted)]">No tools registered.</p>
       )}

app/src/services/api/hooks.ts

@@ -8,7 +8,7 @@ import type {
   GatewayInfo,
   ServiceActionResponse,
   SSEHealthEvent,
-  ToolCategory,
+  ToolSummary,
   ToolDetail,
 } from "@/types"
 
@@ -110,7 +110,7 @@ export function useToolAction() {
 export function useTools() {
   return useQuery({
     queryKey: ["tools"],
-    queryFn: () => apiClient.get<ToolCategory[]>("/tools"),
+    queryFn: () => apiClient.get<ToolSummary[]>("/tools"),
   })
 }
 

app/src/types/index.ts

@@ -69,11 +69,6 @@ export interface ToolSummary {
   installed: boolean
 }
 
-export interface ToolCategory {
-  name: string
-  tools: ToolSummary[]
-}
-
 export interface ToolDetail extends ToolSummary {
   docs: string | null
 }

cli/src/castle_cli/main.py

@@ -120,7 +120,7 @@ def build_parser() -> argparse.ArgumentParser:
     # castle tool
     tool_parser = subparsers.add_parser("tool", help="Manage tools")
     tool_sub = tool_parser.add_subparsers(dest="tool_command")
-    tool_sub.add_parser("list", help="List all tools by category")
+    tool_sub.add_parser("list", help="List all tools")
     tool_info_parser = tool_sub.add_parser("info", help="Show tool details")
     tool_info_parser.add_argument("name", help="Tool name")
 

recommendations.md

@@ -164,9 +164,8 @@ Each project has its own ruff rules (devbox-connect: `E,F,I,W`; mboxer: `ALL`).
 
 Don't move toolkit in as a monolith. Instead:
 1. Add toolkit as a submodule
-2. Graduate heavy tools (`search`, `protonmail`, `browser`) into independent castle projects
-3. Keep lightweight tools (`docx2md`, `html2text`, etc.) grouped in a single `tools` package
-4. Promote toolkit's meta-tooling up into the castle CLI
+2. Graduate all tools into independent castle projects (each tool is its own standalone package)
+3. Promote toolkit's meta-tooling up into the castle CLI
 
 ## 11. What to defer