What is logbook AGENTS.md?

Repository instructions for Logbook, a small command-line tool and MCP wrapper for recording and querying agent notes.

Use them when changing Logbook's detector, cache, event ledger, command-line interface, MCP server, or release process.

They document tests and release rules that protect event detection, cache behavior, versioning, and consistent JSON output.

logbook AGENTS.md — Instructions file for Codex and OpenCode by promptwheel-ai: Repository instructions for Logbook, a small command-line to

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/promptwheel-ai/logbook/agents-md

Clone the repo

git clone --depth 1 https://github.com/promptwheel-ai/logbook

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/promptwheel-ai/logbook/agents-md.svg)](https://agentmods.dev/instructions/promptwheel-ai/logbook/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/promptwheel-ai/logbook/agents-md"><img src="https://agentmods.dev/badge/instructions/promptwheel-ai/logbook/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 908 This file is loaded in full into every session.

When invoked 908 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.

Model	Per session	Once invoked
Fable 5.1	$0.00908	$0.00908
Opus 5	$0.00454	$0.00454
Sonnet 5	$0.00182	$0.00182
Haiku 4.5	$0.00091	$0.00091

Measured 5d ago against content hash bd9c59f1a900, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

logbook 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 5d 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 · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

logbook — agent notes

Single-file zero-dep CLI (bin/logbook.mjs) + MCP wrapper (mcp/server.mjs). Run tests: npm test (root) and cd mcp && npm test (behavioral, drives the real server over stdio). Inside this repo use node bin/logbook.mjs, not npx — npm prefers the same-name local package and shadows the registry.

Release invariants (regression-tested — keep all of them green)

A fresh self-run on THIS repo reports 0 suppression events. The detector must never flag its own regex tables or comments about skip APIs (diff +/- prefix is stripped before isMention; call-syntax idioms inside comments are prose).
Bump EXTRACTOR_VERSION whenever detector precision changes — the events.jsonl cache is rejected on mismatch, so old ledgers can't mask a fix. Verify fresh and upgraded-cache self-runs agree.
Public JSON is cache-invariant: --json (and MCP logbook_query) byte-identical with and without LOGBOOK_NO_CACHE=1. Events are stamped with xv at birth in collectEvents, not at write time.
Cache freshness is the exact current ordered non-merge Git window, never “newest cached SHA is present.” Merges can introduce older-dated side commits; reuse rows by immutable full SHA, scan missing SHAs, then restore Git's canonical order.
init writes the ordered read → bounded path-context → verify workflow with neutral --by MODEL attribution and creates the CLAUDE.md @AGENTS.md bridge; exact released blocks migrate, user-edited blocks are never touched.
DEFAULT_MAX is the single source for the commit window — the ledger cache gate in loadEvents depends on it.
Never turn "unmeasurable" into clean: a failed diff scan sets A.degraded (surfaced in LOGBOOK.md); a failed git grep in audit throws instead of reporting clean.
All repository-controlled Markdown and agent-facing audit values go through the single sanitizeContextText implementation. Rendering must never mutate events.jsonl, --json, or query output.
Generated artifacts use atomic per-file replacement and one shared stamped record. logbook doctor is read-only and must fail stale/tampered bundles or shadowing wiring without repairing them while it checks.

Read the full file on GitHub · 69 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.

5d ago First seen · 69 lines · 908 tokens per session scan A bd9c59f1a900

Subscribe to this mod's changes

logbook AGENTS.md is an instructions file published in the GitHub repository promptwheel-ai/logbook (3 stars, last pushed 1mo ago), licensed MIT. It adds 908 tokens to every session, about $0.0045 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.

Building agents Memory and context ai-agents claude-code codex developer-tools git-history mcp

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Instructions for pomazanbohdan/memory-mcp-1file, covering ⛔ l0 invariants (never violate under any circumstance), detection heuristic, 🔀 phase transition routing (⛔ blocking), gate-0: phase identification & loading and 🧾 proof-of-load requirement (critical).

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