Borrowing it
Nothing to install: this file belongs to shuruheel/mcp-engram. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/shuruheel/mcp-engram/main/CLAUDE.mdgit clone --depth 1 https://github.com/shuruheel/mcp-engramWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/shuruheel/mcp-engram/claude-md)<a href="https://agentmods.dev/instructions/shuruheel/mcp-engram/claude-md"><img src="https://agentmods.dev/badge/instructions/shuruheel/mcp-engram/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/shuruheel/mcp-engram/claude-md"><img src="https://agentmods.dev/badge/instructions/shuruheel/mcp-engram/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00998 | $0.00998 |
| Opus 5 | $0.00499 | $0.00499 |
| Sonnet 5 | $0.00200 | $0.00200 |
| Haiku 4.5 | $0.00100 | $0.00100 |
Grade A, and why
mcp-engram CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
MCP Engram — a Model Context Protocol server for building and exploring a cognitive neuroscience-inspired knowledge graph backed by SQLite. Models thought, emotion, reasoning, and episodic memory. Zero infrastructure — single file on disk, works offline.
Build & Development Commands
# Install dependencies
npm install
# Build all projects
npx nx run-many -t build
# Build individual projects
npx nx build mcp-engram # MCP server (ESM, output: dist/servers/mcp-engram)
npx nx build graphrag-memory # Shared types library (CJS, output: dist/libs/graphrag-memory)
# Serve server in dev mode
npx nx serve mcp-engram
# Test
npx nx test graphrag-memory # Library tests
npx nx test mcp-engram # Server tests
npx nx test mcp-engram -- --testPathPatterns=sqlite # Run single test file by pattern (Jest 30: flag is plural)
# Lint
npx nx lint mcp-engram
npx nx lint graphrag-memory
# Run across all projects
npx nx run-many -t test
npx nx run-many -t lint
Architecture
Nx Monorepo
servers/mcp-engram — Main MCP server (TypeScript application)
- Entry:
src/main.ts→src/main/index.ts(server init, SQLite setup, MCP wiring) src/main/tools.ts— MCP tool definitions and request handlers (8 tools)src/main/prompts.ts— System prompts and tool-specific promptssrc/storage/sqlite.ts—SqliteBackendclass: implementsStorageBackendinterfacesrc/storage/schema.ts— SQLite DDL (nodes, edges, aliases, observations, FTS5)src/storage/fts.ts— FTS5 query buildersrc/storage/validation.ts— Provenance and confidence validationsrc/types/— All TypeScript interfaces, enums,StorageBackendinterface- Transport: StdioServerTransport (stdin/stdout)
libs/graphrag-memory — Shared type definitions library
- Exports:
Entity,Relation,KnowledgeGraph,KnowledgeGraphMemory,Source,EmotionalEvent - Path alias:
@mcp-engram/graphrag-memory
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 92 lines · 998 tokens per session scan A 2af75823aa17
mcp-engram CLAUDE.md is an instructions file published in the GitHub repository shuruheel/mcp-engram (24 stars, last pushed 1mo ago), licensed MIT. It adds 998 tokens to every session, about $0.0050 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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spec-kit AGENTS.md
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