repo-kit: Instructions file for Codex

AGENTS.md

repo-kit AGENTS.md is an instructions file for Codex, OpenCode from PBNZ/repo-kit. It costs 648 tokens per session, scanned A, original, Apache-2.0.

Repository instructions that explain where files belong, how the project is organised, and which rules contributors should follow.

In plain words
What is it for?
Finding the right files, following commit and documentation rules, and completing pre-commit, pull-request, and session-end checks.
Why use it?
They give coding agents a map of the repository and its working conventions, reducing guesswork before making changes.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is PBNZ/repo-kit's own configuration. It tells Codex and OpenCode how to work on repo-kit 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 repo-kit configures →

Reuse

Borrowing it

Nothing to install: this file belongs to PBNZ/repo-kit. 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/PBNZ/repo-kit/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/PBNZ/repo-kit

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.

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README.md
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Per session 648 This file is loaded in full into every session.
When invoked 648 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 $0.00648 $0.00648
Opus 5.5 $0.00259 $0.00259
Sonnet 5.5 $0.00130 $0.00130
Haiku 4.5 $0.00065 $0.00065

Measured 2mo ago against content hash b645ede28ed8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

repo-kit 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 2mo 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 · 37 lines

How it starts

The opening of the file, as written. The whole thing — 37 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — RepoKit

RepoKit is a reusable GitHub-repository standard plus a /new-repo scaffolder, packaged as a Claude Code plugin. It stamps consistent, navigable repos from commit #1, organised by type × tier so private repos stay light and public/published ones get the right ceremony.

This repo dogfoods its own standard (Core + Public tier).

START-HERE map — where things live

You want… Look in
What RepoKit is / how to install README.md
Where work was left (resume state / checkpoint) docs/CHECKPOINT.md
The standard itself (tiers, where-things-live, do/don't) plugins/repokit/skills/repo-standard/standard/the-standard.md
Commit / changelog / version conventions plugins/repokit/skills/repo-standard/standard/commit-conventions.md
Pre-commit / pre-PR / session-end checklists plugins/repokit/skills/repo-standard/standard/pre-commit-checklist.md, pre-pr-checklist.md, session-end-checklist.md
Doc formatting & the living-docs pattern plugins/repokit/skills/repo-standard/standard/doc-style.md, living-docs.md
What to test per repo type plugins/repokit/skills/repo-standard/standard/testing-matrix.md
The scaffolding methodology (/new-repo) plugins/repokit/skills/new-repo/SKILL.md
Templates stamped into new repos plugins/repokit/skills/new-repo/templates/
Decisions & rationale (learnings log) docs/adr/
Validation scripts (run before committing) scripts/ + .github/workflows/validate.yml
Standard-compliance self-check (CI dogfoods it here) plugins/repokit/skills/new-repo/templates/core/scripts/repokit-check.ps1

Ground rules

  • AGENTS.md is the canonical agent file; CLAUDE.md is a thin @AGENTS.md import (Claude Code reads CLAUDE.md, not AGENTS.md).
  • Default to verified, simple, proven practices. Conventional Commits; one concern per PR.
  • When working in this repo, the repo-standard skill auto-loads the conventions and the pre-commit / pre-PR checklists — follow them before committing or opening a PR.
  • Templates and SKILL.md files are prompt content — keep them plain prose, no secrets, no email addresses (CI enforces this via scripts/check_*.py).
  • RepoKit publishes to its own marketplace; "publish" = bump versions in plugin.json / marketplace.json / CHANGELOG.md, then tag and push. See docs/adr/0001-repokit-architecture.md.

Read the full file on GitHub · 37 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. 2mo ago First seen · 37 lines · 648 tokens per session scan A b645ede28ed8

Subscribe to this mod's changes

repo-kit AGENTS.md is an instructions file published in the GitHub repository PBNZ/repo-kit (1 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 648 tokens to every session, about $0.0026 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.

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