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Package-specific context for @gotgenes/pi-subagents. Load when working on code, tests, or docs in packages/pi-subagents/.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Vitest mock patterns (vi.mock, vi.hoisted, vi.fn reset), TDD planning rules, and general test strategy. Load when writing or debugging tests.
Pre-completion protocol for implementation agents — gather context, dispatch the pre-completion-reviewer subagent, and handle its report before writing stage notes and recommending /ship-issue. Load at the end of /tdd-plan and /build-plan after all implementation steps are complete.
Package-specific context for @gotgenes/pi-permission-system. Load when working on code, tests, or docs in packages/pi-permission-system/.
TypeScript conventions, code design principles (SOLID, self-documenting code, file organization), structural design heuristics (dependency width, LoD, output arguments), pnpm rules, ES2024 target, Pi SDK patterns, and Biome/ESLint conflict workarounds. Load during implementation, refactoring, or code review.
Review a module's dependency and structural patterns for code smells. Use when adding a parameter to a shared interface, when a dependency bag grows past 5 fields, or when planning a refactoring that touches wiring between layers.
Heuristics and process for discovering structural improvements in a package. Load when planning a new improvement round — contains the smell taxonomy, analysis workflow, and prioritization framework distilled from 10 phases of pi-subagents refactoring.
| name | package-pi-subagents |
| description | Package-specific context for @gotgenes/pi-subagents. Load when working on code, tests, or docs in packages/pi-subagents/. |
Pi extension that adds a focused, in-process autonomous subagent core to the Pi coding agent.
This package is a hard fork of tintinweb/pi-subagents.
The fork diverges intentionally from upstream with material scope reduction and a typed API boundary.
See docs/architecture/architecture.md for the full decomposition plan and docs/decisions/0001-deferred-patches.md (superseded) for the original thin-patch rationale.
The fork carries two original patches from the thin-patch era, still present in the codebase:
@earendil-works/pi-* (the active scope) rather than the deprecated @mariozechner/pi-* scope.buildAgentPrompt includes <active_agent name="${agentConfig.name}"/> in every assembled child system prompt (both replace and append modes); the tag follows the cacheable parent-prompt prefix so @gotgenes/pi-permission-system can resolve per-agent permission: frontmatter inside the child.Note: Patch 2 (post-bind active-tool re-filter) was simplified in Phase 14 (#239).
The two-pass pre-bind/post-bind filter dance is gone.
A single post-bind call applies the EXCLUDED_TOOL_NAMES recursion guard after bindExtensions.
Upstream PRs for these patches (#71, #72, #73) are open but the fork continues independently regardless.
See docs/architecture/architecture.md for the full architecture document with Mermaid diagrams, domain model, structural analysis, and improvement roadmap.
Refactoring history is preserved in docs/architecture/history/ (one file per completed phase).
The extension is organized into seven domains (57 files):
| Domain | Directory | Modules | Responsibility |
|---|---|---|---|
| Config | agent-types.ts, default-agents.ts, custom-agents.ts, invocation-config.ts | 4 | Agent type registry, built-in/custom configs, per-call merge |
| Session | session-config.ts, prompts.ts, context.ts, conversation.ts, content-items.ts, env.ts, model-resolver.ts, session-dir.ts | 8 | Pure session assembly: prompts, context, conversation rendering, environment, model resolution |
| Lifecycle | subagent-manager.ts, create-subagent-session.ts, subagent-session.ts, turn-limits.ts, subagent.ts, subagent-state.ts, run-listeners.ts, workspace-bracket.ts, concurrency-limiter.ts, parent-snapshot.ts, child-lifecycle.ts, workspace.ts, usage.ts | 13 | Spawn, abort, resume, concurrency admission, session assembly factory, born-complete turn loop, status state machine, lifecycle-state value object, per-subagent behavior, per-run listener handles, workspace prepare/dispose lifecycle, child-lifecycle events, workspace provider seam |
| Observation | record-observer.ts, notification.ts, notification-state.ts, renderer.ts, subagent-events-observer.ts, composite-subagent-observer.ts | 6 | Session-event stats, completion nudges, notification rendering, lifecycle-event emission, multi-observer fan-out |
| Tools | tools/ | 8 | LLM-facing tools: Agent, get_subagent_result, steer_subagent, spawn-config, result-renderer, helpers |
| UI | ui/ | 6 | Widget, display helpers, session navigation, settings command |
| Service | service.ts, service-adapter.ts | 2 | Cross-extension API boundary via Symbol.for() |
Entry point (index.ts), runtime (runtime.ts), shared types (types.ts), settings (settings.ts), debug (debug.ts), and event handlers (handlers/) sit at the root.
tools/ → SubagentManager → Subagent → createSubagentSession → session-config → [prompts, memory, skills, env]
↓ ↑
SubagentSession AgentTypeRegistry → [default-agents, custom-agents]
record-observer ─subscribes─→ AgentSession
SubagentManager ─notifies→ CompositeSubagentObserver ─fans out→ [subagent-events-observer, widget]
widget ─polls─→ Subagent records (listAgents)
service-adapter ─wraps─→ SubagentManager
docs/architecture/architecture.md.@gotgenes/pi-permission-system, not in this package.
The disallowed_tools frontmatter field and extensions: string[] allowlist were removed in Phase 14 (#237, #238, #239).
Users should use permission: frontmatter for tool restrictions.SubagentsService via Symbol.for() accessors so other extensions can spawn agents without importing this package directly (done, #48).The target architecture is documented in docs/architecture/architecture.md under "Target architecture."
The key phases are:
disallowed_tools, extensions filtering, collapse filterActiveTools (#237, #238, #239). ✅ CompleteAgentRecord → Agent with behavior, async startAgent, observer pattern, ConcurrencyQueue (#227-#232).permission-bridge.ts (#261); add the WorkspaceProvider seam (#262); extract worktrees to @gotgenes/pi-subagents-worktrees (#263, supersedes #256); remove isolated/extensions: false/noSkills (#264); born-complete child execution, dissolve the runner (#265).
The earlier "agent collaborator architecture" framing was abandoned.Subagent record/executor duality (extract SubagentState, make execution deps mandatory), replace the concurrency queue with a thunk limiter, extract the manager observer from index.ts, consolidate test fixtures (#373-#381)./agents menu are consumers judged on our principles, not preserved by default.Formatting is handled by Biome (biome check, biome format).
The repo intentionally does not use Prettier - a top-level .prettierignore blocks any harness with project-level write-time Prettier formatting from reformatting files here.
This package publishes two public subpath entries, each with a rolled self-contained .d.ts:
| Subpath | Source | Declaration | Purpose |
|---|---|---|---|
. | src/service/service.ts | dist/public.d.ts | Cross-extension service contract: spawn/abort/steer/workspace seam |
./settings | src/layered-settings.ts | dist/settings.d.ts | Generic layered JSON config loader for @gotgenes/pi-* extensions |
Use loadLayeredSettings<T>({ agentDir, cwd, filename, sanitize, warnLabel }) from @gotgenes/pi-subagents/settings to read global + project JSON config with the standard @gotgenes/pi-* layering convention.
See the ## For Extension Authors section of README.md for the full wiring example.
This package is otherwise ship-source (Pi runs ./src/index.ts directly), but it carries the repo's only build step: type-declaration bundles for both public entries (ADR-0003).
pnpm run build:types runs rollup -c rollup.dts.config.mjs (rollup-plugin-dts) to produce dist/public.d.ts (service entry) and dist/settings.d.ts (settings entry) - internal #src/* types inlined, peer-dep types kept external.
The bundles are gitignored, regenerated at prepack, and shipped via the package.json files allowlist.
Never commit dist/.
pnpm run verify:public-types (scripts/verify-public-types.sh, also a CI step) packs the tarball and type-checks a throwaway consumer against both entries - run it after any change to the public surface, the exports map, or the rollup config.
Sibling packages consume this one from the published registry release (the repo sets linkWorkspacePackages: false), not via a workspace symlink - a symlink resolves exports.types to the gitignored, unbuilt dist/*.d.ts.
See @gotgenes/pi-subagents-worktrees for the pattern.
The package has an extensive vitest suite.
All tests must pass before publishing.
Use vi.hoisted(...) for module-level mocks, matching the existing patterns in test/lifecycle/subagent-session.test.ts.
Tests that mount Pi's per-entry interactive components (UserMessageComponent, ToolExecutionComponent, etc., used by session-navigator.ts) must call initTheme(undefined, false) in beforeAll — they read a global theme Pi initializes at startup.
The dependency is component-specific: AssistantMessageComponent alone does not trip it, so a one-variant probe gives false confidence.
When working in this package:
docs/architecture/architecture.md.
Document architectural decisions in docs/decisions/.← removing or ← replacing in the architecture doc's current-state listing are slated for deletion - do not add features to them.