skills AGENTS.md

skills AGENTS.md is an instructions file for Codex, OpenCode from open-mercato/skills. It costs 3,723 tokens per session, scanned A, original, MIT.

A set of instructions for working on a collection of reusable agent skills stored as markdown files.

In plain words
What is it for?
Use it when editing or adding skills, checking repository conventions, running validation, or deciding which project instructions to read first.
Why use it?
It gives contributors shared rules for routing tasks, writing skills, validating changes, and managing tracker state consistently.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/open-mercato/skills/agents-md
Clone the repo
git clone --depth 1 https://github.com/open-mercato/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/open-mercato/skills/agents-md.svg)](https://agentmods.dev/instructions/open-mercato/skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/open-mercato/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/open-mercato/skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,723 This file is loaded in full into every session.
When invoked 3,723 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 $0.03723 $0.03723
Opus 5 $0.01861 $0.01861
Sonnet 5 $0.00745 $0.00745
Haiku 4.5 $0.00372 $0.00372

Measured today against content hash 95d5bd170600, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 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 · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent instructions

This repository is the source of the Open Mercato Skills collection: thirty-seven agent skills (skills/<name>/SKILL.md) that run a full PR pipeline — plan, implement, review, QA gate, merge — installable into any repo via skills.sh. The deliverables here are markdown skill documents plus a small amount of shell/Node tooling; there is no application code.

Task routing

When the task involves… Read first Key rules
Editing or adding a skill (skills/<name>/SKILL.md) DECISIONS.md, scripts/lint.sh, the Cross-skill contract section below, the skill's own references/ dir if present Frontmatter name must equal the directory name and description must be present (≤500 chars — lint-enforced; aim for ≤350). Content must stay product-agnostic: no Open Mercato product references, no hard-coded base branch or package manager (the lint gate greps for these). All tracker state management goes through named tracker operations, never direct gh commands (only references/trackers/ may contain them). Config values (baseBranch, paths, labels, validation commands) always come from .ai/agentic.config.json, never hard-coded. New om-auto-* skills MUST implement the Cross-skill contract.
Cross-skill contracts (tracker operations, config schema, Progress format) skills/om-setup-agent-pipeline/SKILL.md, skills/om-setup-agent-pipeline/references/trackers/TEMPLATE.md, BACKWARD_COMPATIBILITY.md Multiple skills parse each other's outputs (execution-plan Progress sections, test-env.json, tracker descriptors). Changing a shared format requires updating every consumer in the same PR.
Installer / tooling scripts (scripts/*.sh, scripts/*.mjs) package.json, the script itself, .github/workflows/ Keep scripts POSIX-portable where they run in CI (ubuntu) and locally (macOS). scripts/lint.sh is the CI gate — changes to it change what every PR must pass.
CI workflows (.github/workflows/*.yml) scripts/lint.sh, scripts/audit-skills.sh lint.yml runs the frontmatter + product-agnosticism gate on every PR. skills-audit.yml is informational (skills.sh third-party audit surfacing).
Process / pipeline configuration .ai/agentic.config.json, SDLC.md, .ai/trackers/github.md Config and SDLC.md describe the same process — change them together.
README, DECISIONS.md, LICENSE DECISIONS.md These MAY reference the upstream Open Mercato project (the agnosticism gate is scoped to skills/** only). Read DECISIONS.md before proposing structural changes — most "obvious" restructurings were already considered and decided.

Read the full file on GitHub · 105 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 · +51 tokens per session 95d5bd170600
  2. 5d ago First seen · 105 lines · 3,672 tokens per session scan A 23e4567797d3

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository open-mercato/skills (141 stars, last pushed today), licensed MIT. It adds 3,723 tokens to every session, about $0.0186 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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