# Grimoire

> Use when the user says 'update context', 'update claude', 'save library', or after significant project changes.

- Skill: `cwinvestments/grimoire` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cwinvestments/grimoire`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cwinvestments/grimoire/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cwinvestments (https://skillmd.com/u/cwinvestments)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cwinvestments/grimoire

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# 📖 Grimoire: Updating the Knowledge Library
*Manage and update CLAUDE.md files across all projects.*

## Activation

When this skill activates, output:

`📖 Grimoire: Updating the knowledge library.`

Then execute the protocol below.

## Protocol

1. **Identify the target project**: use config.json to find the CLAUDE.md path
2. **Read the current CLAUDE.md** if it exists
3. **Determine what to update** based on the session's work:
   - New API endpoints built
   - New database tables/migrations
   - New pages or components added
   - Architecture decisions made
   - Environment variables added
   - Dependencies installed
4. **Update the CLAUDE.md:**
   - Keep existing content intact
   - Add new entries under the right headings
   - Don't duplicate existing entries
   - Use consistent formatting
5. **If no CLAUDE.md exists**: create one with standard sections:
   - Project Overview, Tech Stack, Directory Structure, Key Files
   - API Endpoints, Database Schema, Environment Variables, Dev Commands

## Inputs
- Project name (maps to config.json entry)
- What was built/changed this session

## Outputs
- Updated CLAUDE.md file
- Summary of what was added

## Example Usage

**User:** "update claude.md with the CC Monitor stuff"

```
📖 Grimoire: Updating the knowledge library.

Reading: C:\Projects\AdminStack\CLAUDE.md

Adding to API Endpoints:
  - POST/GET/PATCH/DELETE /api/cc-sessions
  - POST /api/cc-sessions/report

Adding to Database Schema:
  - cc_sessions (020_cc_sessions.sql)

Adding to Environment Variables:
  - CC_MONITOR_API_KEY

CLAUDE.md updated ✓
```

## Level History

- **Lv.1**: Base: CLAUDE.md read/write with section management. (Origin: MemStack v1.0, Feb 2026)
- **Lv.2**: Enhanced: Added YAML frontmatter, activation message, auto-detect what changed. (Origin: MemStack v2.0 MemoryCore merge, Feb 2026)