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agents-md-sync: Instructions file for Codex

AGENTS.md

agents-md-sync AGENTS.md is an instructions file for Codex, OpenCode from trick77/agents-md-sync. It costs 592 tokens per session, scanned A, original, MIT.

Project instructions for a TypeScript command-line tool that builds an AGENTS.md file from Markdown pieces stored in a central Bitbucket repository. It can commit and push the result to target repositories and optionally open or update a pull request, which is a proposed change for review.

In plain words
What is it for?
Building or maintaining the CLI, composing instruction files, syncing them to Bitbucket repositories, and testing the composition logic without network access.
Why use it?
They explain how the tool is structured and how it should handle Bitbucket access, file operations, validation, and tests.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is trick77/agents-md-sync's own configuration. It tells Codex and OpenCode how to work on agents-md-sync itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agents-md-sync configures →

not rated 2repo changed 10d ago A scan 592 tokens original MIT
View source ↗ trick77/agents-md-sync
Reuse

Borrowing it

Nothing to install: this file belongs to trick77/agents-md-sync. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/trick77/agents-md-sync/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/trick77/agents-md-sync

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 agents-md-sync AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/trick77/agents-md-sync/agents-md/github.svg)](https://agentmods.dev/instructions/trick77/agents-md-sync/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/trick77/agents-md-sync/agents-md"><img src="https://agentmods.dev/badge/instructions/trick77/agents-md-sync/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for agents-md-sync AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/trick77/agents-md-sync/agents-md"><img src="https://agentmods.dev/badge/instructions/trick77/agents-md-sync/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 592 This file is loaded in full into every session.
When invoked 592 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00592 $0.00592
Opus 5.5 $0.00237 $0.00237
Sonnet 5.5 $0.00118 $0.00118
Haiku 4.5 $0.00059 $0.00059

Measured 10d ago against content hash fd919244f1a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agents-md-sync 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 10d 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 · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Instructions — agents-md-sync

Instructions for AI coding agents working on this repository. For what the tool itself does, see README.md.

Project

Node/TypeScript CLI that composes a repo's AGENTS.md from markdown fragments in a central template directory plus per-repo .agents/*.md addenda. Runs inside the target repo's CI pipeline. Writes AGENTS.md (and a placeholder .agents/PROJECT.md when missing), nothing else. No git, no PR hosts, no multi-repo config: those were removed in 1.0 and are not coming back without a design discussion.

Stack

  • TypeScript strict, Node 22+. tsx for dev, tsc for build.
  • CLI: commander. Only runtime dependency; keep it that way.
  • Tests: vitest. Lint: eslint + prettier.

Coding

  • No any without a written reason.
  • Keep I/O (fs, console) at the edges in src/run.ts; src/compose.ts stays pure.
  • No comments that restate the code. Only non-obvious why.
  • No templating engine. Include markers are <!-- include: NAME.md -->, resolved by string replacement.
  • Fragment resolution is profile-aware: profiles/<profile>/NAME.md wins over common/NAME.md. Test both paths.
  • Default skeleton is the DEFAULT_SKELETON constant in src/templateLoader.ts. A profile overrides it with its own AGENTS.md.tmpl.
  • One profile per run. Multi-profile (polyglot) is out of scope.

Testing

  • Tests live in tests/ and mirror src/. Every change to src/compose.ts ships with a test in tests/compose.test.ts.
  • npm test runs sample check, lint and vitest. Must pass before opening a PR.
  • Sample outputs are golden fixtures. examples/sample-output-<profile>.md is rendered from examples/template-repo/ plus examples/sample-targets/<profile>/. Fragment or header change → npm run render:samples and commit the result in the same change. CI fails on drift.

Review & Git

  • No direct pushes to master. Feature branch and PR.
  • Not a fork. If that ever changes, confirm the PR target with the user before gh pr create.
  • Commits: short imperative subject, body optional.

Read the full file on GitHub · 43 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. 10d ago Changed · -22 lines · -436 tokens per session fd919244f1a9
  2. 2mo ago First seen · 65 lines · 1,028 tokens per session scan A 9722adb20ddd

Subscribe to this mod's changes

agents-md-sync AGENTS.md is an instructions file published in the GitHub repository trick77/agents-md-sync (2 stars, last pushed 6d ago), licensed MIT. It adds 592 tokens to every session, about $0.0024 per session on Opus 5.5. 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.

agents-mdagentsmd
Related

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agents-md-sync AGENTS.md next to 6 instructions from other repositories
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agents-md-sync AGENTS.mdtrick77/agents-md-syncInstructions file26d agoMITA592Codex, OpenCode
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langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot