agent-friendly-cli-skill: Instructions file for Codex

AGENTS.md

agent-friendly-cli-skill AGENTS.md is an instructions file for Codex, OpenCode from x0c/agent-friendly-cli-skill. It costs 541 tokens per session, scanned A, original, MIT.

A set of repository instructions for working on the agent-friendly-cli skill. It explains the folder layout, required rules, and where the main documentation lives.

In plain words
What is it for?
Use it when editing, synchronising, reviewing, or publishing this skill’s files. It also guides you to the right files for methods, design principles, pitfalls, and checks.
Why use it?
It helps coding agents make changes in the correct source location, protect repository history and private information, and follow the project’s documentation rules.

Instructions file for CodexOpenCode

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

This is x0c/agent-friendly-cli-skill's own configuration. It tells Codex and OpenCode how to work on agent-friendly-cli-skill 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 agent-friendly-cli-skill configures →

Reuse

Borrowing it

Nothing to install: this file belongs to x0c/agent-friendly-cli-skill. 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/x0c/agent-friendly-cli-skill/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/x0c/agent-friendly-cli-skill

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 agent-friendly-cli-skill AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/x0c/agent-friendly-cli-skill/agents-md/github.svg)](https://agentmods.dev/instructions/x0c/agent-friendly-cli-skill/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/x0c/agent-friendly-cli-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/x0c/agent-friendly-cli-skill/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 agent-friendly-cli-skill AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/x0c/agent-friendly-cli-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/x0c/agent-friendly-cli-skill/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 541 This file is loaded in full into every session.
When invoked 541 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 $0.00541 $0.00541
Opus 5.5 $0.00216 $0.00216
Sonnet 5.5 $0.00108 $0.00108
Haiku 4.5 $0.00054 $0.00054

Measured today against content hash 61bc070f668c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-friendly-cli-skill 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 today.

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 · 22 lines

How it starts

The opening of the file, as written. The whole thing — 22 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This repository is the source and release repo of the agent-friendly-cli skill. Follow these conventions when working in it.

Repository structure

  • The repo root is the skill body (SKILL.md router + references/ six references + agents/openai.yaml + tests/ regression fixtures). The local development authority is ~/.config/agentsync/skills/agent-friendly-cli/ — land changes in the authority first, then sync to this repo; never edit only the repo copy.

Hard constraints

  • English only (user ruling, 2026-10-29): every file in this repo — skill body, references, tests, commit messages — must be English. README.md is the single exception and may stay bilingual. Never introduce Chinese anywhere else, including "temporary" notes.
  • Merge before push, never blind-push: before every push, clone the remote and diff -rq it against the local authority — the remote may hold updates pushed from other machines (including remote-only fixes such as README install URLs). Absorb remote-only content into the local authority first, then sync-push; direct rsync overwrites are forbidden.
  • Commit identity, both fields, is x0c (GIT_COMMITTER_NAME/GIT_COMMITTER_EMAIL + --author, [email protected]); real names and emails never enter commit history.
  • No internal-network content: class names, paths, and configs of internal platforms must not enter this repo; use generic phrasing for examples (no company or platform names), and generic references ("a scheduling-platform CLI") with dates kept in incident narratives.

Documentation map

  • README.md: the storefront — the skill's use cases and installation for outsiders. Keep the clone URL in sync on repo renames or install changes; never lose the Quick Install section.
  • SKILL.md: the router (scope, which-reference-when, contract evolution) — keep it lean.
  • references/design-principles.md: the design standard (P0/P1/P2 + dual audience + read-before-write fingerprint recipe). references/implementation-workflow.md: the workflow. references/pitfalls.md: field incidents. references/distribution.md: distribution and lifecycle. references/go-engineering.md: Go engineering. references/verification.md: acceptance.
  • tests/: the skill's own regression fixtures (a fresh-machine simulation brief plus the pre-registered acceptance criteria). Re-run them per their README after changing the skill.

Read the full file on GitHub · 22 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. today Changed · +1 lines · +135 tokens per session 61bc070f668c
  2. 2mo ago First seen · 21 lines · 406 tokens per session scan A 9260db22e4bb

Subscribe to this mod's changes

agent-friendly-cli-skill AGENTS.md is an instructions file published in the GitHub repository x0c/agent-friendly-cli-skill (1 stars, last pushed yesterday), licensed MIT. It adds 541 tokens to every session, about $0.0022 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

Other instructions, from other repositories

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,461 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,750 tokens

deno copilot-instructions.md

Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.

denoland/deno · 3,077 tokens