Add 5 pi extensions: pi-subagents, pi-crew, rpiv-pi, pi-interactive-shell, pi-intercom

extensions/pi-crew/skills/runtime-state-reader/SKILL.md

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+---
+name: runtime-state-reader
+description: Safe read-only navigation of pi-crew run state. Use for inspecting manifests, tasks, events, agents, artifacts, health, and diagnostics without modifying state.
+---
+
+# runtime-state-reader
+
+Use this skill when debugging or auditing a pi-crew run.
+
+## Source patterns distilled
+
+- `src/state/types.ts`, `src/state/contracts.ts`, `src/state/state-store.ts`
+- `src/state/event-log.ts`, `src/state/artifact-store.ts`, `src/runtime/crew-agent-records.ts`
+- `src/extension/run-index.ts`, `src/extension/team-tool/status.ts`, `src/extension/team-tool/inspect.ts`
+
+## Rules
+
+- Prefer exported state APIs over direct file parsing: `loadRunManifestById(cwd, runId)`, run index/list helpers, event readers, and agent readers.
+- Treat state as append-mostly/durable. For review and debugging, do not mutate manifests/tasks/events.
+- Validate run IDs and path-derived IDs; never concatenate untrusted path segments outside state helpers.
+- Read events as JSONL; expect partial/corrupt trailing lines in crash scenarios and handle gracefully.
+- Check status contracts before inferring behavior: terminal vs active run/task statuses matter.
+- Agent aggregate records (`agents.json`) and per-agent status files can disagree briefly; prefer the latest loaded run state plus event log for final conclusions.
+- Include exact paths inspected and distinguish direct evidence from inference.
+
+## Common inspection order
+
+1. Load manifest/tasks.
+2. Check run/task statuses and timestamps.
+3. Read recent events.
+4. Read agent records and per-agent output/status if needed.
+5. Inspect artifacts/diagnostics only through contained paths.
+6. Report root cause and smallest safe remediation.
+
+## Verification
+
+For code changes to state readers:
+
+```bash
+cd pi-crew
+npx tsc --noEmit
+node --experimental-strip-types --test test/unit/run-index.test.ts test/unit/crew-contracts.test.ts test/unit/atomic-write.test.ts
+npm test
+```