DSH Plugin Creator

Use this skill when adding or modifying a plugin (@deepseek-ai/dsh-* package) in this repository. It compresses the repo's extension-point map, package checklist, and testing policy into one ordered procedure. Each step names the authoritative file; the full grounded detail with per-step sources lives in references/plugin-dev-sop.md.

Triggers

Activate when the user asks to add a plugin, package, capability seam, tool, hook, or model provider to this repo.

• "给本项目加一个插件" / "新增一个 capability" / "加一个模型工具" / "封一个 skill"
• "create a dsh plugin", "add a package", "scaffold a tool", "add an llm adapter"

Do not activate when the task only runs a skill, reviews code, or fixes a bug in an existing package without adding a contribution.

Mental model

• Everything is a plugin; there is no privileged core (docs/architecture.md). Extending dsh means mounting a plugin beside the others.
• Two plugin forms (packages/AGENTS.md "Plugin exports"): a function plugin exporting name/inject/Config/apply with no default export, or a Service subclass with a default export. Never mix the forms.
• Every contribution is an effect: ctx.effect() / ctx.on() / ctx.waterfall(). A registry's register() returns the disposer, so teardown and hot-reload unwind automatically.

Workflow

1. Decide the mechanism and home

1. Read docs/architecture.md "Where new behavior goes" and pick the mechanism: register a ctx.tools tool, listen on an agent/ / tools/ event, or define a new capability seam.
2. Check docs/cookbook/extension-cookbook.md "feature → mechanism map" for an existing mechanism before inventing one.
3. A swappable capability needs all three seam roles — Service Definition, Service Provider, Consumer — never one role alone (docs/glossary.md capability-seam).
4. Pick an existing group under packages/<group>/; a new group is a pure container.

2. Scaffold the package

Create packages/<group>/<pkg>/ with package.json, tsconfig.json, src/index.ts, src/types.ts (types only), src/invariant.ts, and a bilingual README.md + README.zh.md. Follow the package.json invariants (private, version aligned to root, type: module, cordis in both peer and dev deps, exact files list) and register the package in exactly one aggregate — tsconfig.host.json or tsconfig.client.json. Full checklist: docs/cookbook/adding-a-package.md.

3. Implement the plugin

• Waterfall listeners must call next() to delegate; returning without it short-circuits (docs/cordis-primer.md).
• Typed events use declaration merging and carry an @mode tag.
• Name the current role from the role table (Controller/Store/Registry/Provider/Backend/…), not the first implementation.
• Deployment-varying choices are Config fields, not DEFAULT_* constants; explicit resolve(request): Spec, no hidden ?? default in run().
• Optional services use ctx.get(name); cross-boundary ids use Branded<B>.
• For a tool, follow the execute() contract in docs/cookbook/adding-a-tool.md: typed args, one canonical JSON value, honor exec.signal, output.render owns prose, presenters stay pure.

4. Add the invariant

Every package owns src/invariant.ts registering its manifest name and checking one event or data relation, or stating No runtime invariant: with a reason (packages/AGENTS.md).

5. Test

Follow docs/testing.md: an HMR-safety test for every registry, per-file 100% coverage on packages///src, a non-unit REAL-composition test for any product-visible plugin, and a keyless snapshot in the same PR for any model- or user-visible change.

6. Document

Write the package README.md with service API, config, events, and extension points first, then the canonical ## Model Experience and ## Known Limitations and Deferred Work sequence. Pair it with README.zh.md, and add an Agent Note in the same PR for any non-trivial change.

7. Verify

pnpm install
pnpm run doc-sync
pnpm run constraints && pnpm run typecheck && pnpm run lint
pnpm run build && pnpm run hygiene

Then run only the checks the changed surface reaches — do not default to the full suite.

8. Commit

Split independent changes; label kind/ plus every material area/; keep the Agent Note in the same PR.

References

• references/plugin-dev-sop.md — the full grounded SOP with per-step sources.
• references/skill-composition.md — how this skill hands off to the dsh-* skill family.

通用反馈闭环

用户在 Skill 驱动任务中提出修改意见时，继续当前产物前必须执行：

1. 先判断意见是 task-specific（仅本次）还是 reusable（可跨任务复用）。
2. task-specific 只修改当前任务，不改 Skill。
3. reusable 先确定作用域：领域规则先更新对应 canonical Skill；适用于所有 Skill 的规则先更新共享规范。
4. 完成规则更新、版本、lint 与分发核验后，再把修改应用到当前任务。
5. reusable 修改会使此前的“确认”“继续”“发吧”失效；完成当前产物修改和回读后必须停下，等待用户下一步指示，不自动进入发布、提交或其他外部写入。