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skills/paperclip-create-plugin/SKILL.md

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+---
+name: paperclip-create-plugin
+description: >
+  Create new Paperclip plugins with the current alpha SDK/runtime. Use when
+  scaffolding a plugin package, adding a new example plugin, or updating plugin
+  authoring docs. Covers the supported worker/UI surface, route conventions,
+  scaffold flow, and verification steps.
+---
+
+# Create a Paperclip Plugin
+
+Use this skill when the task is to create, scaffold, or document a Paperclip plugin.
+
+## 1. Ground rules
+
+Read these first when needed:
+
+1. `doc/plugins/PLUGIN_AUTHORING_GUIDE.md`
+2. `packages/plugins/sdk/README.md`
+3. `doc/plugins/PLUGIN_SPEC.md` only for future-looking context
+
+Current runtime assumptions:
+
+- plugin workers are trusted code
+- plugin UI is trusted same-origin host code
+- worker APIs are capability-gated
+- plugin UI is not sandboxed by manifest capabilities
+- no host-provided shared plugin UI component kit yet
+- `ctx.assets` is not supported in the current runtime
+
+## 2. Preferred workflow
+
+Use the scaffold package instead of hand-writing the boilerplate:
+
+```bash
+pnpm --filter @paperclipai/create-paperclip-plugin build
+node packages/plugins/create-paperclip-plugin/dist/index.js <npm-package-name> --output <target-dir>
+```
+
+For a plugin that lives outside the Paperclip repo, pass `--sdk-path` and let the scaffold snapshot the local SDK/shared packages into `.paperclip-sdk/`:
+
+```bash
+pnpm --filter @paperclipai/create-paperclip-plugin build
+node packages/plugins/create-paperclip-plugin/dist/index.js @acme/plugin-name \
+  --output /absolute/path/to/plugin-repos \
+  --sdk-path /absolute/path/to/paperclip/packages/plugins/sdk
+```
+
+Recommended target inside this repo:
+
+- `packages/plugins/examples/` for example plugins
+- another `packages/plugins/<name>/` folder if it is becoming a real package
+
+## 3. After scaffolding
+
+Check and adjust:
+
+- `src/manifest.ts`
+- `src/worker.ts`
+- `src/ui/index.tsx`
+- `tests/plugin.spec.ts`
+- `package.json`
+
+Make sure the plugin:
+
+- declares only supported capabilities
+- does not use `ctx.assets`
+- does not import host UI component stubs
+- keeps UI self-contained
+- uses `routePath` only on `page` slots
+- is installed into Paperclip from an absolute local path during development
+
+## 4. If the plugin should appear in the app
+
+For bundled example/discoverable behavior, update the relevant host wiring:
+
+- bundled example list in `server/src/routes/plugins.ts`
+- any docs that list in-repo examples
+
+Only do this if the user wants the plugin surfaced as a bundled example.
+
+## 5. Verification
+
+Always run:
+
+```bash
+pnpm --filter <plugin-package> typecheck
+pnpm --filter <plugin-package> test
+pnpm --filter <plugin-package> build
+```
+
+If you changed SDK/host/plugin runtime code too, also run broader repo checks as appropriate.
+
+## 6. Documentation expectations
+
+When authoring or updating plugin docs:
+
+- distinguish current implementation from future spec ideas
+- be explicit about the trusted-code model
+- do not promise host UI components or asset APIs
+- prefer npm-package deployment guidance over repo-local workflows for production