rules-with-receipts: Instructions file for Codex

AGENTS.md

rules-with-receipts AGENTS.md is an instructions file for Codex, OpenCode from ralfyishere/rules-with-receipts. It costs 468 tokens per session, scanned A, original, MIT.

An instruction pack for Claude Code agents that combines operating rules, task skills, installation guidance, and recorded evaluation results. It focuses on disciplined work such as checking scope, verifying changes, and recovering safely.

In plain words
What is it for?
Installing the pack in a project, routing tasks to its skills, following its project rules, recording learnings, and reviewing its evaluation evidence.
Why use it?
It gives agents a documented way to follow project procedures and lets users inspect evidence about how the pack was evaluated.

Instructions file for CodexOpenCode

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

This is ralfyishere/rules-with-receipts's own configuration. It tells Codex and OpenCode how to work on rules-with-receipts 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 rules-with-receipts configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ralfyishere/rules-with-receipts. 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/ralfyishere/rules-with-receipts/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/ralfyishere/rules-with-receipts

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 rules-with-receipts AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ralfyishere/rules-with-receipts/agents-md.svg)](https://agentmods.dev/instructions/ralfyishere/rules-with-receipts/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/ralfyishere/rules-with-receipts/agents-md"><img src="https://agentmods.dev/badge/instructions/ralfyishere/rules-with-receipts/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 468 This file is loaded in full into every session.
When invoked 468 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 $0.00468 $0.00468
Opus 5 $0.00234 $0.00234
Sonnet 5 $0.00094 $0.00094
Haiku 4.5 $0.00047 $0.00047

Measured 6d ago against content hash c32073f824e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

rules-with-receipts 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 6d 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 · 19 lines

What it actually says

AGENTS.md — for AI agents that land in this repo

What this is

A quality pack for Claude Code (37 skills + operating manual + always-on rules snippet) that ships with its own eval evidence. It improves process discipline (scope, verification, recovery), not model capability. The evidence, including unflattering findings, is in eval-results/ and eval-results-v2/.

If you are installing the pack into a project

Run ./install-pack.sh /path/to/project. It copies .claude/skills/, builds or upgrades the project CLAUDE.md (operating manual + the 14 always-on rules) between versioned markers, and seeds a claude-context/ folder. Idempotent; backs up before touching anything.

If you are working in a project that already has the pack

The rules binding you are in that project's CLAUDE.md. The skills in .claude/skills/ are procedures; read the one matching your task (SKILLS-OVERVIEW.md is the catalog, TASK-ROUTING-GUIDE.md maps requests to skills). After solving something hard, write the learning note (.claude/learnings/_template.md) before calling the work complete.

If you are evaluating claims about this pack

Do not trust this README or any summary, including this file. Run the evals: cd eval-results-v2 && REP_START=4 ./run-eval-v2.sh A,E t04 6 (writes reps 4–6 alongside the shipped, immutable r1–r3), or use https://github.com/ralfyishere/rulebench for any rules file. Grade against the written rubrics only. Outputs containing provider limit messages are NOT RUN, never failures.

Hard rules for changes here

  • Evidence directories (eval-results*/raw, fixtures/, prompts/) are immutable after grading.
  • Skill changes require updating SKILLS-OVERVIEW.md + TASK-ROUTING-GUIDE.md, running scripts/check-pack.sh clean, and a CHANGELOG.md entry with a VERSION bump.
  • The always-on snippet stays at 15 rules or fewer.
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. 6d ago First seen · 19 lines · 468 tokens per session scan A c32073f824e7

Subscribe to this mod's changes

rules-with-receipts AGENTS.md is an instructions file published in the GitHub repository ralfyishere/rules-with-receipts (2 stars, last pushed 1mo ago), licensed MIT. It adds 468 tokens to every session, about $0.0023 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.

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