Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/notsointresting/mnemex/agents-mdgit clone --depth 1 https://github.com/notsointresting/mnemexWhat 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 | $0.00305 | $0.00305 |
| Opus 5 | $0.00152 | $0.00152 |
| Sonnet 5 | $0.00061 | $0.00061 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
mnemex AGENTS.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 yesterday.
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.
What it actually says
mnemex — Agent Build Context
Sources of truth
Read implementation-plan-opus48.md, codebase-mind-improved-plan.md,
goal-command.md, and CLAUDE.md before changing the project. Build phases in plan
order; Phase 1's anchor core must be complete before any indexer work.
Goal
Build a local-first MCP server that anchors each remembered decision to a file/symbol and content hash, then delivers relevant context just in time. Use one SQLite file with sqlite-vec and FTS5, and distribute context through MCP, skills, hooks, and AGENTS.md.
Orchestration rules
- Give each subagent one bounded contract with inputs, outputs, and exact tests.
- Require diffs, test results, and a self-report; never blind-merge.
- A phase is complete only after its objective gate passes.
- Use a separate verifier instance; authors do not grade their own work.
- Keep changes within the current phase and do not add speculative APIs.
Hard constraints
- Core features stay local and require no cloud API or ML model.
- Context caps are hard limits: 800 tokens at session start and 400 for JIT.
- Support macOS, Linux, and Windows on Python 3.10–3.13.
- Strip secrets and PII at write time; the Phase 6 security gate is blocking.
- Prefer a pluggable structural backend over implementing another parser.
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.
- yesterday First seen · 27 lines · 305 tokens per session scan A ce18c75a73ee
mnemex AGENTS.md is an instructions file published in the GitHub repository notsointresting/mnemex (1 stars, last pushed 1mo ago), licensed MIT. It adds 305 tokens to every session, about $0.0015 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 2026-08-31.
Other instructions, from other repositories
open-skill-sunset AGENTS.md
Instructions for ooocooc/open-skill-sunset, a project described as: Local, read-only audit for stale AGENTS.md, CLAUDE.md, and generic SKILL.md instructions.
anchor copilot-instructions.md
Instructions for peva3/anchor, covering github copilot instructions, required reading, critical rules, prohibited actions and project structure.
anchor CLAUDE.md
Instructions for peva3/anchor: All project rules, patterns, and requirements are defined in AGENTS.md.
anchor AGENTS.md
Instructions for peva3/anchor, covering agents.md — anchor, how to use this file, section index (glossary), quick-navigation cheatsheet and core rules (kept in full — always apply).
dev-agent-skills CLAUDE.md
Instructions for fvadicamo/dev-agent-skills, covering claude.md, project overview, architecture, key file: marketplace.json and skill anatomy.
trellis AGENTS.md
Instructions for craigcossairt/trellis, covering agents.md , project, what i need from agents, current state - source of truth pointers and tech stack.