# Pi Stuff Prompt Caching

> Read after general prompt-caching guidance when investigating or changing this repo's Codex cache, continuation, prewarm, replay, or compaction.

- Skill: `igorwarzocha/pi-stuff-prompt-caching` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add igorwarzocha/pi-stuff-prompt-caching`
- Raw SKILL.md: https://api.skillmd.com/api/skills/igorwarzocha/pi-stuff-prompt-caching/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: igorwarzocha (https://skillmd.com/u/igorwarzocha)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/igorwarzocha/pi-stuff-prompt-caching

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Discover and load an applicable general prompt caching skill before cache-sensitive work.

For a reported miss or suspicious model, prewarm, keepalive, replay, or compaction transition, also load an applicable agent-session diagnostics skill and read `references/cache-investigation.md`.

Read `references/codex-pi-map.md` before changing conversion routing, request construction, Code Mode, continuation, prewarm, compaction, or another extension that changes the system prompt, active tools, provider-visible history, model, or reasoning lane.

Use the map to find current owners, then inspect the source and final provider request. The map is not a frozen behavior claim.