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skillz: Instructions file for Codex

AGENTS.md

skillz AGENTS.md is an instructions file for Codex, OpenCode from kevinslin/skillz. It costs 516 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for skillz, a TypeScript command-line tool that scans, parses, compares, and generates files for coding-agent skills. They describe its folders, development commands, naming rules, and tests.

In plain words
What is it for?
Working on CLI commands, skill processing, templates, filesystem utilities, and Jest integration tests.
Why use it?
They tell the coding agent where each kind of code belongs and how to build, test, lint, and format changes correctly.

Instructions file for CodexOpenCode

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

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

not rated 8repo 3mo ago A scan 516 tokens original Apache-2.0
View source ↗ kevinslin/skillz
Reuse

Borrowing it

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

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 skillz AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/kevinslin/skillz/agents-md/github.svg)](https://agentmods.dev/instructions/kevinslin/skillz/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/kevinslin/skillz/agents-md"><img src="https://agentmods.dev/badge/instructions/kevinslin/skillz/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.

agentmods 80×15 button for skillz AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/kevinslin/skillz/agents-md"><img src="https://agentmods.dev/badge/instructions/kevinslin/skillz/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 516 This file is loaded in full into every session.
When invoked 516 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 $0.00516 $0.00516
Opus 5.5 $0.00206 $0.00206
Sonnet 5.5 $0.00103 $0.00103
Haiku 4.5 $0.00052 $0.00052

Measured 2mo ago against content hash 5866c49b4a49, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skillz 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 · 39 lines

How it starts

The opening of the file, as written. The whole thing — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

  • src/cli.ts bootstraps the Commander CLI and routes to command modules in src/commands/.
  • src/core/ holds the domain services: configuration, skill scanning, parsing, change detection, templating, and targets.
  • src/utils/ provides shared helpers for filesystem access, validation, hashing, and logging.
  • tests/ combines Jest integration suites (tests/integration/) with helper utilities (tests/helpers/) for temporary workspaces.
  • dist/ is generated by the TypeScript compiler; do not edit files there directly.
  • If a .skills/ directory exists, check it for additional local skills alongside any configured skill directories.

Build, Test, and Development Commands

  • npm run build compiles TypeScript to dist/ and copies template assets.
  • npm run dev starts the CLI in watch mode for rapid iteration.
  • npm test performs a full build before running the Jest suite.
  • npm run lint and npm run format run ESLint and Prettier respectively; execute them before opening a pull request.

Coding Style & Naming Conventions

  • TypeScript is the primary language; favor async/await over raw promise chains.
  • Use two-space indentation, trailing commas in multi-line literals, and keep imports sorted logically (node first, internal modules second).
  • Directories and files are kebab-case (skill-scanner.ts), exported symbols are camelCase or PascalCase for classes/types.
  • Run npm run format to enforce Prettier’s rules; ESLint will flag unused imports and unsafe any usage.

Testing Guidelines

  • Jest drives testing with the ts-jest ESM preset; place tests alongside domain areas using *.test.ts.
  • Integration suites rely on temporary workspaces—clean them up with the provided helpers.
  • Add tests for new features or bug fixes and ensure npm test passes locally before pushing.
  • Document unusual test setup in notes/TESTING.md for future maintainers.

Commit & Pull Request Guidelines

Read the full file on GitHub · 39 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 · 39 lines · 516 tokens per session scan A 5866c49b4a49

Subscribe to this mod's changes

skillz AGENTS.md is an instructions file published in the GitHub repository kevinslin/skillz (8 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 516 tokens to every session, about $0.0021 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.

Related

skillz AGENTS.md compared with instructions from other repositories

skillz AGENTS.md next to 6 instructions from other repositories
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skillz AGENTS.mdkevinslin/skillzInstructions file83mo agoApache-2.0A516Codex, OpenCode
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