mnemon AGENTS.md

Agent instructions for Mnemon, a Go application with memory and agency command areas. They define its testing boundaries, executable structure, repository conventions, and rules for changing shared Go code.

In plain words
What is it for?
Use them when changing Mnemon’s Go code, command structure, daemon boundaries, tests, concurrency, or durable shared infrastructure.
Why use it?
They help keep changes compatible with the project’s architecture and prevent agents from treating local configuration folders or special integration tests as core project state.

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/mnemon-dev/mnemon/agents-md
Clone the repo
git clone --depth 1 https://github.com/mnemon-dev/mnemon

Made for: Codex, OpenCode.

Per session 611 This file is loaded in full into every session.
When invoked 611 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 $0.00611 $0.00611
Opus 5 $0.00305 $0.00305
Sonnet 5 $0.00122 $0.00122
Haiku 4.5 $0.00061 $0.00061

Measured 2d ago against content hash f371ed730b93, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mnemon 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 2d 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 · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mnemon Agent Guidelines

Development

  • Build the single product executable with go build -o mnemon ..
  • Run make test for the deterministic CI suite. It excludes real daemon readiness, CLI E2E, wall-clock scenarios, Docker, and provider calls.
  • Run make test-integration explicitly for CLI E2E plus Agency timing, race, process, and Docker boundaries; it is not a regular CI gate.
  • Run make test-live only when explicitly validating the paid Pi/DeepSeek scenarios.
  • Treat cmd/memory and cmd/agency as command namespaces within the single mnemon executable. Keep existing Memory commands at the root; expose Agency through mnemon agency .... mnemond remains the local daemon/protocol role, not a second executable.
  • Keep mnemond boundary suites under test/mnemond and their data-only fixtures under testdata/mnemond.
  • Treat .claude/, .codex/, .openclaw/, and similar host directories as local projection surfaces, not canonical project state.

Go Engineering

  • Read and follow the Go engineering standard before changing Go architecture, concurrency, durable state, or shared infrastructure.
  • Use patterns, channels, generics, callbacks, and registries only when they reduce sources of truth, state combinations, or modification points. They are not usage quotas, and reducing if statements or total lines is not a goal.
  • Keep authority, digest, fence, bounds, CAS cardinality, and fail-closed checks explicit. Every goroutine must have an owner, cancellation, bounded work, and a wait path.
  • Preserve independent replay, crash, authorization, and race oracles while compressing fixtures and shared setup.

Commit Discipline

  • Prefer small, logical commits. Split unrelated work instead of committing a broad mixed diff.
  • Keep tightly coupled changes together when splitting would leave either commit misleading or incomplete.
  • Use the project style already present in history: a concise Conventional Commit title plus one or two focused body paragraphs, with bullets only when they improve scanning.
  • Choose the commit type by the primary project effect:
    • feat for new developer-facing or Agency capabilities.
    • fix for correctness repairs.
    • test for tests, eval scenarios, or fixtures that do not add a new reusable capability.
    • docs for documentation-only changes.
    • refactor for structure changes without intended behavior changes.
    • chore for repository hygiene and maintenance.
  • Mention validation in the body when tests, evals, or manual checks are part of the work.
  • Do not include agent attribution or co-author lines unless explicitly asked.

Read the full file on GitHub · 55 lines

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. 2d ago First seen · 55 lines · 611 tokens per session scan A f371ed730b93

Subscribe to this mod's changes

mnemon AGENTS.md is an instructions file published in the GitHub repository mnemon-dev/mnemon (540 stars, last pushed 9d ago), licensed Apache-2.0. It adds 611 tokens to every session, about $0.0031 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.