nobrainer-tech-skills: Instructions file for Codex

AGENTS.md

nobrainer-tech-skills AGENTS.md is an instructions file for Codex, OpenCode from nobrainer-tech/nobrainer-tech-skills. It costs 2,188 tokens per session, scanned A, original, MIT.

A set of instructions for working on NoBrainer Tech's reusable agent skills. It explains the repository structure, shared rules, client adapters, testing, and compatibility checks.

In plain words
What is it for?
Use it when adding or updating skills, checking support across coding-agent tools, running validation, or following the repository's delegated-work process.
Why use it?
It helps contributors avoid changing the wrong copy of a skill or advancing work without the required checks and evidence.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

README.md
[![agentmods](https://agentmods.dev/badge/instructions/nobrainer-tech/nobrainer-tech-skills/agents-md.svg)](https://agentmods.dev/instructions/nobrainer-tech/nobrainer-tech-skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/nobrainer-tech/nobrainer-tech-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/nobrainer-tech/nobrainer-tech-skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,188 This file is loaded in full into every session.
When invoked 2,188 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.02188 $0.02188
Opus 5 $0.01094 $0.01094
Sonnet 5 $0.00438 $0.00438
Haiku 4.5 $0.00219 $0.00219

Measured 3d ago against content hash 1dda2349566e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

nobrainer-tech-skills AGENTS.md scanned grade A with 1 finding 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 3d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Canonical public templates and examples use English; task-shaped `BRIEF` artifacts expose explicit `Description` and `Definition of Done (DoD)` fields, and `Acceptance` criteria use sequential IDs such as `AC01` and `AC0
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 201 lines

How it starts

The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Working in nobrainer-tech-skills

This is the canonical, client-neutral NoBrainer Agent Skills source; adapters share skills/. Do not fork skills per client or claim runtime support from manifests; see docs/COMPATIBILITY.md.

Respect the host hierarchy; explicit user instructions override skill guidelines. Use Ultra's instruction-conflict and exact-source pause explanation.

CLAUDE.md must remain a byte-identical copy of this file.

Repository map

  • skills/<name>/SKILL.md — the exact active skill portfolio.
  • adapters/bootstrap.md — small shared routing context, not a skill.
  • Client manifests, hooks and .github/ — thin adapters and CI only.
  • scripts/validate_skills.py — portable structure and suite validator.
  • tests/ — deterministic and behavioral regression gates.
  • docs/COMPATIBILITY.md and docs/TESTING.md — proof boundaries.
  • docs/SKILL_CURATION.md — admission, ownership and retirement decisions.

Portable skill contract

Every active skill lives at skills/<skill-name>/SKILL.md and starts on line 1:

---
name: skill-name
description: "Use when ..."
---

The name is lowercase kebab-case, no longer than 64 characters, and equals its directory. Shared frontmatter contains only name and description. Descriptions explain when to trigger and may include short nb-* aliases. Aliases are phrases, never duplicate directories.

Keep bodies operational and client-neutral. Use relative links. Put long detail in focused references/ files and deterministic helpers in scripts/. Never depend on a user's filesystem, account, private host or current model name. Canonical public templates and examples use English; task-shaped BRIEF artifacts expose explicit Description and Definition of Done (DoD) fields, and Acceptance criteria use sequential IDs such as AC01 and AC02; bug reports and comments use one composite ENV: block with Name (QA, DEV, TEST, PROD, PREPROD, BETA or UNKNOWN), URL and User, while bug reports keep Description, Steps to reproduce, Current behavior and Expected behavior as separate fields and omit speculative workaround/root-cause fields; surface proof is separate: API uses a copyable curl request (method, URL, headers and body) plus response, DB uses separate read-only Query/Result code blocks, and UI uses Evidence for a screenshot or MP4 plus an optional HAR when the page-load/request chain matters; missing required proof returns INPUT_REQUIRED. The active portfolio is exactly fifteen nobrainer-* skills. A permanent skill must own a recurring cross-project boundary that no current skill or maintained native capability owns. Do not add one because a topic is popular.

Read the full file on GitHub · 201 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. 3d ago Changed · +8 tokens per session 1dda2349566e
  2. 4d ago Changed · -132 lines · -1,339 tokens per session 1cb73af2e706
  3. 8d ago First seen · 333 lines · 3,519 tokens per session scan A aa694d50dd0e

Subscribe to this mod's changes

nobrainer-tech-skills AGENTS.md is an instructions file published in the GitHub repository nobrainer-tech/nobrainer-tech-skills (5 stars, last pushed 3d ago), licensed MIT. It adds 2,188 tokens to every session, about $0.0109 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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