MemoryCustodian AGENTS.md

MemoryCustodian AGENTS.md is an instructions file for Codex, OpenCode from waittim/MemoryCustodian. It costs 167 tokens per session, scanned A, original, MIT.

Repository instructions for MemoryCustodian, a local tool that stores a coding project's important information as plain text for agents to use later.

In plain words
What is it for?
Use it when making substantial changes to MemoryCustodian or running its standard Python test suite.
Why use it?
It helps agents follow the project's required reading order, avoid irrelevant archived notes, and keep development practices consistent.

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/waittim/memorycustodian/agents-md
Clone the repo
git clone --depth 1 https://github.com/waittim/MemoryCustodian

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 MemoryCustodian AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/waittim/memorycustodian/agents-md.svg)](https://agentmods.dev/instructions/waittim/memorycustodian/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/waittim/memorycustodian/agents-md"><img src="https://agentmods.dev/badge/instructions/waittim/memorycustodian/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 167 This file is loaded in full into every session.
When invoked 167 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 $0.00167 $0.00167
Opus 5 $0.00084 $0.00084
Sonnet 5 $0.00033 $0.00033
Haiku 4.5 $0.00017 $0.00017

Measured 3d ago against content hash 0a7b03f64255, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

MemoryCustodian 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 3d 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 · 20 lines

What it actually says

Agent Instructions

This repository builds MemoryCustodian: a local-first, pure-text project memory skill and CLI for coding agents.

MemoryCustodian

Before substantial work in this repository:

  1. Read docs/memory/manifest.md.
  2. Read docs/memory/brief.md.
  3. Load additional memory files only when the manifest says they are relevant.
  4. Do not load docs/memory/archive/ unless explicitly requested or performing memory maintenance.
  5. After meaningful decisions or repeated corrections, update the appropriate memory file or propose an update.

Development

  • The CLI uses Python stdlib only.
  • Run tests with PYTHONPATH=cli python3 -m unittest discover -s tests.
  • Keep Skill instructions concise; put detailed policy in skills/memory-custodian/references/.
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. 3d ago First seen · 20 lines · 167 tokens per session scan A 0a7b03f64255

Subscribe to this mod's changes

MemoryCustodian AGENTS.md is an instructions file published in the GitHub repository waittim/MemoryCustodian (20 stars, last pushed 4d ago), licensed MIT. It adds 167 tokens to every session, about $0.0008 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.