What is skills AGENTS.md?

Repository instructions for a collection of coding-agent skills used with Codex and Claude Code. They require following the Agent Skills specification and using only the Python 3.14 standard library for Python scripts.

Use them when editing or adding skills in the bkircher/skills repository, especially when writing Python scripts.

They give contributors consistent rules for maintaining the skills collection and avoid relying on unapproved Python packages.

How bkircher/skills configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to bkircher/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/bkircher/skills/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/bkircher/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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/bkircher/skills/agents-md/github.svg)](https://agentmods.dev/instructions/bkircher/skills/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/bkircher/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/bkircher/skills/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/bkircher/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/bkircher/skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 72 This file is loaded in full into every session.

When invoked 72 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.

Model	Per session	Once invoked
Fable 5.1	$0.00072	$0.00072
Opus 5.5	$0.00029	$0.00029
Sonnet 5.5	$0.00014	$0.00014
Haiku 4.5	$0.00007	$0.00007

Measured 2mo ago against content hash dd9f5c686cfb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 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 · 10 lines

What it actually says

AGENTS.md

This repo contains a skills collection for Codex and Claude Code.

Follow all guidelines in agentskills.io/specification.md exactly.
For Python scripts, use only the Python 3.14 standard library. Do not assume any additional packages are installed.

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.

2mo ago First seen · 10 lines · 72 tokens per session scan A dd9f5c686cfb

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository bkircher/skills (11 stars, last pushed 16d ago), licensed MIT. It adds 72 tokens to every session, about $0.0003 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 2026-08-30.

skills AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
skills AGENTS.mdbkircher/skills	Instructions file	11	16d ago	MIT	A	72	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	1,907	GitHub Copilot

skills: Instructions file for Codex