agent-skills: Instructions file for Codex

AGENTS.md

agent-skills AGENTS.md is an instructions file for Codex, OpenCode from vladmdgolam/agent-skills. It costs 373 tokens per session, scanned A, original, MIT.

Repository instructions for installing and publishing agent skills with the skills command-line tool, including skills for Codex.

In plain words
What is it for?
Installing all or individual skills for Codex, listing installed skills, creating skill files, updating the README, and publishing changes.
Why use it?
They provide the exact Codex installation commands and contribution steps, avoiding mistakes when adding or distributing skills.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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

agentmods 80×15 button for agent-skills AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/vladmdgolam/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/vladmdgolam/agent-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 373 This file is loaded in full into every session.
When invoked 373 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 $0.00373 $0.00373
Opus 5 $0.00187 $0.00187
Sonnet 5 $0.00075 $0.00075
Haiku 4.5 $0.00037 $0.00037

Measured 9d ago against content hash 1c989f176896, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

agent-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 9d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 42 lines

What it actually says

agent-skills repo

Collection of Codex / multi-agent skills published to skills.sh.

Installing skills via npx skills

npx is aliased to nvm in this shell — use the full binary path:

~/.nvm/versions/node/v22.21.1/bin/npx skills <command>

Install this repo's skills globally to Codex

~/.nvm/versions/node/v22.21.1/bin/npx skills add vladmdgolam/agent-skills -g -a Codex -y

Install a specific skill

~/.nvm/versions/node/v22.21.1/bin/npx skills add vladmdgolam/agent-skills --skill time-lens -g -a Codex -y

List installed skills

~/.nvm/versions/node/v22.21.1/bin/npx skills list

Adding a new skill

See references/building-skills-guide.md for the complete guide to building skills (frontmatter, progressive disclosure, composability, testing, distribution).

  1. Create skills/<name>/SKILL.md with name and description frontmatter
  2. Add scripts/references/assets as needed
  3. Update README.md with the new skill entry
  4. Commit and push
  5. Install globally: ~/.nvm/versions/node/v22.21.1/bin/npx skills add vladmdgolam/agent-skills --skill <name> -g -a Codex -y

Skills appear on skills.sh after push + install (install count tracks discoverability).

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. 9d ago First seen · 42 lines · 373 tokens per session scan A 1c989f176896

Subscribe to this mod's changes

agent-skills AGENTS.md is an instructions file published in the GitHub repository vladmdgolam/agent-skills (8 stars, last pushed yesterday), licensed MIT. It adds 373 tokens to every session, about $0.0019 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 2026-08-30.

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