silo-extension-builder

# Extension Builder Turn a natural-language description into a working Silo extension. The extension is real, publishable TypeScript — not a prototype or a hack. `silo install` drops it into Silo immediately; `silo uninstall` removes it cleanly. ## Arguments The skill accepts two optional arguments: `id` and `path`. - **`id`** — the extension id (e.g. `dave.clock`). If not provided, ask the user. - **`path`** — the directory to create the extension in. If not provided, default to `/tmp/silo-ext/<id>` and confirm with the user. Parse arguments from the invocation line. Examples: - `/silo-extension-builder id=dave.clock` — id given, use default path - `/silo-extension-builder path=~/projects/my-ext` — path given, ask for id - `/silo-extension-builder id=dave.clock path=~/projects/my-ext` — both given, skip both questions - `/silo-extension-builder` — neither given, ask for both before proceeding ## Workflow (always in this order) 1. **Resolve args** — extract `id` and `path` from the invocation; ask the user for any that are missing 2. **Scaffold** — run `npx create-silo-extension` to create the directory structure and manifest 3. **Plan** — identify which `ctx.*` APIs the extension needs (see API Reference below) 4. **Write** the implementation to `<path>/src/index.tsx` (overwrites the scaffold placeholder) 5. **Compile** with esbuild (output to `<path>/dist/index.js`) 6. **Ask** — show the user the compiled output path and ask if they want to install it now 7. **Insta...