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

extensions/pi-interactive-shell/examples/prompts/codex-review-plan.md

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+---
+description: Launch Codex CLI in overlay to review an implementation plan against the codebase
+---
+Determine which prompting skill to load based on model:
+- Default: Load `gpt-5-4-prompting` skill (for `gpt-5.4`)
+- If user explicitly requests Codex 5.3: Load `codex-5-3-prompting` skill (for `gpt-5.3-codex`)
+
+Also load the `codex-cli` skill. Then read the plan at `$1`.
+
+Based on the prompting skill's best practices and the plan's content, generate a comprehensive meta prompt tailored for Codex CLI. The meta prompt should instruct Codex to:
+
+1. Read and internalize the full plan. Then read every codebase file the plan references — in full, not just the sections mentioned. Also read key files adjacent to those (imports, dependents) to understand the real state of the code the plan targets.
+2. Systematically review the plan against what the code actually looks like, not what the plan assumes it looks like.
+3. Verify every assumption, file path, API shape, data flow, and integration point mentioned in the plan against the actual codebase.
+4. Check that the plan's approach is logically sound, complete, and accounts for edge cases.
+5. Identify any gaps, contradictions, incorrect assumptions, or missing steps.
+6. Make targeted edits to the plan file to fix issues found, adding inline notes where changes were made. Fix what's wrong — do not restructure or rewrite sections that are correct.
+
+The meta prompt should follow the prompting skill's patterns (clear system context, explicit constraints, step-by-step instructions, expected output format). Instruct Codex not to ask clarifying questions — read the codebase to resolve ambiguities instead of asking. Keep progress updates brief and concrete. Emphasize scope discipline and verification requirements per the prompting skill.
+
+Determine the model flag:
+- Default: `-m gpt-5.4`
+- If user explicitly requests Codex 5.3: `-m gpt-5.3-codex`
+
+Then launch Codex CLI in the interactive shell overlay with that meta prompt using the chosen model flag plus `-a never`.
+
+Use `interactive_shell` with `mode: "dispatch"` for this delegated run (fire-and-forget with completion notification). Do NOT pass sandbox flags in interactive_shell. Dispatch mode only. End turn immediately. Do not poll. Wait for completion notification.
+
+$@