go-authcrunch: Instructions file for Codex

AGENTS.md

go-authcrunch AGENTS.md is an instructions file for Codex, OpenCode from greenpau/go-authcrunch. It costs 1,232 tokens per session, scanned A, original, Apache-2.0.

A repository-wide instruction guide for go-authcrunch, a Go library that provides authentication, authorization, and accounting features. It describes the project structure, important packages, scripts, coding rules, and testing guidance.

In plain words
What is it for?
Use it as the general starting point when working anywhere in the go-authcrunch repository, especially when locating authentication, identity, authorization, UI, or command-line code.
Why use it?
It gives coding agents the shared context needed to make changes in the right package and follow the repository's established rules.

Instructions file for CodexOpenCode

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

This is greenpau/go-authcrunch's own configuration. It tells Codex and OpenCode how to work on go-authcrunch 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 go-authcrunch configures →

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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Your own site
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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.

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Per session 1,232 This file is loaded in full into every session.
When invoked 1,232 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 $0.01232 $0.01232
Opus 5 $0.00616 $0.00616
Sonnet 5 $0.00246 $0.00246
Haiku 4.5 $0.00123 $0.00123

Measured yesterday against content hash a753a7b38acc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-14, from the pricing page.

Security

Grade A, and why

go-authcrunch 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 yesterday.

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 · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Summary

go-authcrunch is a Go library for AuthCrunch Authentication, Authorization, and Accounting (AAA) security functions. It provides the core runtime used for authentication portals, authorization gatekeepers, identity stores, identity providers, single sign-on providers, user registration, messaging, credentials, and cryptographic key handling.

The top-level authcrunch.Config and Server wire together the repository's major packages. Authentication portal behavior lives mostly under pkg/authn, authorization policy and gatekeeper behavior under pkg/authz, identity store dispatch under pkg/ids, identity provider dispatch under pkg/idp, local and LDAP stores under pkg/ids/local and pkg/ids/ldap, OAuth and SAML providers under pkg/idp/oauth and pkg/idp/saml, and crypto key management under pkg/kms.

The repository also includes the authdbctl management CLI in cmd/authdbctl, embedded portal/profile UI assets under pkg/authn/ui, shared identity and user data models under pkg/identity, user registration under pkg/registry, messaging providers under pkg/messaging, i18n helpers under pkg/translate, and test fixtures under testdata.

Scripts and Automation

Use the repo-local scripts-and-automation skill when choosing, running, or documenting Makefile targets, repository scripts, build/test/report workflows, generated artifacts, dependency automation, or release/version procedures.

Coding Directives

Use the repo-local coding-directives skill when creating, modifying, or reviewing repository code; choosing package boundaries, config and validation patterns, constructors, errors, logging, serialization tags, security handling, or test structure; or deciding how a new feature should fit existing AuthCrunch packages.

Testing and CI

Use the repo-local testing-and-ci skill for every Go code change to enforce its corresponding tests and required E2E coverage, and when choosing or running tests, adding or updating test coverage, interpreting CI failures, reproducing GitHub Actions locally, or documenting validation for this repository.

Read the full file on GitHub · 128 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. yesterday First seen · 128 lines · 1,232 tokens per session scan A a753a7b38acc

Subscribe to this mod's changes

go-authcrunch AGENTS.md is an instructions file published in the GitHub repository greenpau/go-authcrunch (59 stars, last pushed yesterday), licensed Apache-2.0. It adds 1,232 tokens to every session, about $0.0062 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 2026-09-13.

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