mnemos AGENTS.md

mnemos AGENTS.md is an instructions file for Codex, OpenCode from anthony-maio/mnemos. It costs 214 tokens per session, scanned A, original, MIT.

Agent instructions for Mnemos, a memory system for language-model projects.

In plain words
What is it for?
Use them at the start and end of substantial coding tasks, when Mnemos MCP tools are available, to manage project-scoped memories safely.
Why use it?
They tell coding agents when to retrieve, save, inspect, and consolidate project memories, reducing repeated work and preserving durable decisions.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/anthony-maio/mnemos/agents-md
Clone the repo
git clone --depth 1 https://github.com/anthony-maio/mnemos

Made for: Codex, OpenCode.

Wrote 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.

agentmods badge for mnemos AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/anthony-maio/mnemos/agents-md.svg)](https://agentmods.dev/instructions/anthony-maio/mnemos/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/anthony-maio/mnemos/agents-md"><img src="https://agentmods.dev/badge/instructions/anthony-maio/mnemos/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 214 This file is loaded in full into every session.
When invoked 214 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00214 $0.00214
Opus 5 $0.00107 $0.00107
Sonnet 5 $0.00043 $0.00043
Haiku 4.5 $0.00021 $0.00021

Measured 4d ago against content hash 97ae113c3d29, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mnemos 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 4d 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.

AGENTS.md · 18 lines

What it actually says

AGENTS.md

Mnemos Memory

Use Mnemos through MCP automatically on every substantial coding task in this repository.

  1. At the start of every substantial user task, call mnemos_retrieve with a focused query tied to the task.
  2. Use current_scope=project, set scope_id to the current repository/workspace name, and include allowed_scopes=project,global unless the user asks for broader scope.
  3. During execution, call mnemos_store only for durable facts:
    • stable user or maintainer preferences
    • project architecture decisions and rationale
    • environment and tooling facts that will matter again
    • recurring bug patterns and their fixes
  4. Before finishing substantial work, call mnemos_consolidate.
  5. If a retrieved memory looks suspicious, call mnemos_inspect before storing a correction.
  6. Never store secrets, credentials, tokens, or one-off transient chatter.
  7. If Mnemos MCP tools are unavailable, continue normally without blocking work.
Changes

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.

  1. 4d ago First seen · 18 lines · 214 tokens per session scan A 97ae113c3d29

Subscribe to this mod's changes

mnemos AGENTS.md is an instructions file published in the GitHub repository anthony-maio/mnemos (27 stars, last pushed 5mo ago), licensed MIT. It adds 214 tokens to every session, about $0.0011 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.