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

extensions/pi-crew/skills/ownership-session-security/SKILL.md

@@ -0,0 +1,41 @@
+---
+name: ownership-session-security
+description: Session ownership and authorization workflow. Use when implementing cancel, respond, steer, run ownership, cwd overrides, imported runs, or cross-session actions.
+---
+
+# ownership-session-security
+
+Use this skill for cross-session safety and trust-boundary work.
+
+## Source patterns distilled
+
+- Pi session IDs: `ctx.sessionManager.getSessionId()` from Pi core `ExtensionContext`
+- pi-crew ownership: `TeamRunManifest.ownerSessionId`, `src/extension/team-tool/run.ts`, `cancel.ts`, `respond.ts`
+- Path safety: `src/utils/safe-paths.ts`, `src/state/state-store.ts`, `src/state/mailbox.ts`
+- Destructive actions: `src/extension/team-tool/lifecycle-actions.ts`, `src/worktree/cleanup.ts`
+
+## Rules
+
+- Propagate the active Pi session ID into `TeamContext` for every production tool/command path.
+- New runs should record `ownerSessionId` when available.
+- For owned runs, cross-session actions that mutate state must be rejected unless explicit force/admin semantics are designed and tested.
+- Legacy runs without `ownerSessionId` may remain permissive for backward compatibility, but document this behavior.
+- User/LLM-controlled path fields (`cwd`, import paths, artifact paths, task IDs) must be normalized and contained under an allowed base.
+- Use `resolveContainedPath`, `resolveRealContainedPath`, `assertSafePathId`, and symlink checks rather than ad-hoc `startsWith` checks.
+- Destructive management actions must require `confirm: true`; referenced resource deletes must require `force: true` where applicable.
+
+## Anti-patterns
+
+- Assuming `ctx.sessionId` exists directly on Pi context.
+- Letting `cwd: ../other-project` move run state into another project.
+- Letting `respond`/`cancel` mutate a foreign owned run.
+- Trusting task IDs, run IDs, or artifact paths from tool params without validation.
+
+## Verification
+
+```bash
+cd pi-crew
+npx tsc --noEmit
+node --experimental-strip-types --test test/unit/cancel-ownership.test.ts test/unit/respond-tool.test.ts test/unit/cwd-override-security.test.ts test/unit/api-artifact-security.test.ts
+npm test
+```