skills: Instructions file for Codex

AGENTS.md

skills AGENTS.md is an instructions file for Codex, OpenCode from idaibin/skills. It costs 1,319 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for the idaibin/skills project. They explain how coding agents should route tasks, follow project rules, and validate skill changes.

In plain words
What is it for?
Choosing the right instructions or skill for a task, mapping the repository, editing skills or documentation, and following validation rules.
Why use it?
They reduce confusion about which project guidance or skill applies to repository work, installation, diagnosis, and feature requirements.

Instructions file for CodexOpenCode

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

This is idaibin/skills's own configuration. It tells Codex and OpenCode how to work on skills 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 skills configures →

Reuse

Borrowing it

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

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 skills AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/idaibin/skills/agents-md.svg)](https://agentmods.dev/instructions/idaibin/skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/idaibin/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/idaibin/skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,319 This file is loaded in full into every session.
When invoked 1,319 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01319 $0.01319
Opus 5 $0.00660 $0.00660
Sonnet 5 $0.00264 $0.00264
Haiku 4.5 $0.00132 $0.00132

Measured 6d ago against content hash 8ce1591f6dd8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

skills 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 · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Instructions

This file defines how AI agents should work on this repository. It is not the primary skill installation guide.

Task Routing

  • For repository development, documentation edits, prompt edits, skill package edits, reviews, or commits, follow the repository work rules below.
  • Only when the user explicitly asks to install Skills from this catalog's published source, read INSTALL.md and follow that installation flow.
  • Do not switch into installation mode just because this repository contains skills/.
  • Use repo-map for separate repository mapping, reuse inventory, or docs/code alignment.
  • Use domain-modeling when shared cross-functional business language or rules conflict; load lifecycle or bounded-context depth only when that shared ambiguity requires it. Route feature-local behavior and acceptance to product-spec.
  • Use the host's built-in planning for requirement readiness, technical design, task decomposition, acceptance criteria, and validation gates.
  • For concrete failures, follow the effective personal or repository diagnosis rules before permanent remediation; use the matching implementation skill only when a source change is requested.
  • Use dev-frontend, dev-java, or dev-rust for requested code changes.
  • Use audit-frontend, audit-java, or audit-rust for bounded read-only domain audits. Use repo-review for a fixed Worktree or immutable change basis, including changes involving authentication, authorization, secrets, untrusted input, or other security risks; assess those risks as part of the ordinary Standards axis.
  • Use repo-review for read-only review of the current Worktree/index, a fixed immutable SHA/range, or a verified review package. Resolve pull requests to fixed base/head SHAs; apply Release only as a conditional profile over a fixed basis.
  • Use ask-ai for local external-AI packages or explicitly authorized review, research, visual exploration, and decision challenge with ChatGPT, Gemini, DeepSeek, Kimi, or another named provider after the Codex-first gate; use ops-browser only for delegated low-level browser operations.
  • Use repo-delivery for categorized commits by default, explicit single commits, pushes, evidence-based branch integration, cleanup, and other Git mutations.

Read the full file on GitHub · 85 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. 6d ago First seen · 85 lines · 1,319 tokens per session scan A 8ce1591f6dd8

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository idaibin/skills (6 stars, last pushed 2d ago), licensed Apache-2.0. It adds 1,319 tokens to every session, about $0.0066 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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