agent-skills-public: Instructions file for Codex

AGENTS.md

agent-skills-public AGENTS.md is an instructions file for Codex, OpenCode from joao-aires/agent-skills-public. It costs 1,036 tokens per session, scanned A, original, MIT.

A repository instruction set for maintaining a collection of reusable skills for coding agents. It defines packaging, documentation, dependency, licensing, migration, and validation rules for the project.

In plain words
What is it for?
Use it when adding or changing skills, plugins, resources, README entries, source pins, or packaging checks in this repository.
Why use it?
It keeps the source catalogue, metadata, bundled skills, and upstream resources consistent without claiming that package checks are application tests.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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-public AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/joao-aires/agent-skills-public/agents-md"><img src="https://agentmods.dev/badge/instructions/joao-aires/agent-skills-public/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,036 This file is loaded in full into every session.
When invoked 1,036 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 $0.01036 $0.01036
Opus 5.5 $0.00414 $0.00414
Sonnet 5.5 $0.00207 $0.00207
Haiku 4.5 $0.00104 $0.00104

Measured yesterday against content hash 143700858a21, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-skills-public 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 yesterday.

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 · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository instructions

Source and ownership

  • Edit owning sources under plugins/<bundle>/: plugin.json, skills/<name>/SKILL.md, neighboring resources and package-root framing. Build output is generated.
  • Use the ownership map to locate a capability. agent-depot.json owns accepted artifact commits, destinations and per-artifact metadata.packaging; agent-depot.lock.json owns snapshot identities. Managed upstream folders are immutable inputs; the builder applies adaptations only to generated bundles.
  • Keep packages self-contained. Preserve original strategy/visual resources, complete upstream groups, native invocation controls and licenses. Acquire public sources through Agent Depot at reviewed artifact commit pins and record adaptations in notices; never redistribute private installed skills.

For acquisition and updates, follow upstream maintenance. Ordinary builds use committed resources and never fetch upstream repositories.

Architecture and authoring

  • Preserve independently useful generic activities, application disciplines, technical expertise and supporting capabilities. Development is the default build; technical packages are explicit additions and do not select an application stack.
  • Select optional expertise by capability and actual available descriptions, without hardcoded cross-package names or a dependency resolver. Required same-package resources may use precise relative links. Without a specialist, retain acceptance standards using project evidence, general expertise and primary sources; distinguish missing guidance from missing tools or decisions.
  • Write decision principles with applicability and completion evidence. Keep ordinary implementation choices with the project and agent; reserve strict sequences for real dependencies. Link conditional detail with a reading trigger, and keep each rule with its owner.
  • Explain the working method and consequential reasoning in language a contributor can follow. Use checklists to support that explanation. Choose paragraphs, lists, sequences and tables according to meaning; use the authoring guidance when rewriting skills.
  • Generalize findings into decision guidance; put concrete reproductions in evals/ or justified deterministic tests. Avoid incident-specific prohibition lists, generated applications, scaffolds and mandatory process machinery.
  • Preserve explicit-only activity controls and the requested action scope. Descriptive metadata does not enforce permissions. Add MCP connections or client hooks only for a concrete need with documented setup.
  • Use lowercase kebab-case: short activities for tasks and recognizable disciplines for support. Preserve upstream names and established operations terminology. Rename folders, frontmatter and maintained references together; record old names in migration notes without duplicate aliases.

Read the full file on GitHub · 52 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. yesterday Changed · +3 lines · +121 tokens per session 143700858a21
  2. 2d ago Changed · +33 lines · +522 tokens per session 6b0af5055bd5
  3. 7d ago Changed · +2 lines · +115 tokens per session 5ab38dc6cabd
  4. 10d ago Changed · +4 lines · +93 tokens per session a0c43d445f71
  5. 11d ago First seen · 10 lines · 185 tokens per session scan A 5b95b09bcbe7

Subscribe to this mod's changes

agent-skills-public AGENTS.md is an instructions file published in the GitHub repository joao-aires/agent-skills-public (2 stars, last pushed yesterday), licensed MIT. It adds 1,036 tokens to every session, about $0.0041 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 2026-10-11.

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