# Grimoire

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

- **Type:** Skill
- **Install:** `agentstack add skill-cwinvestments-memstack-grimoire`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [cwinvestments](https://agentstack.voostack.com/s/cwinvestments)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [cwinvestments](https://github.com/cwinvestments)
- **Source:** https://github.com/cwinvestments/memstack/tree/master/skills/grimoire
- **Website:** https://memstack.pro

## Install

```sh
agentstack add skill-cwinvestments-memstack-grimoire
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# 📖 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)

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [cwinvestments](https://github.com/cwinvestments)
- **Source:** [cwinvestments/memstack](https://github.com/cwinvestments/memstack)
- **License:** MIT
- **Homepage:** https://memstack.pro

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-cwinvestments-memstack-grimoire
- Seller: https://agentstack.voostack.com/s/cwinvestments
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.