Borrowing it
Nothing to install: this file belongs to DevelopersGlobal/ai-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.
curl -O https://raw.githubusercontent.com/DevelopersGlobal/ai-agent-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/DevelopersGlobal/ai-agent-skillsWrote 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.
[](https://agentmods.dev/instructions/developersglobal/ai-agent-skills/agents-md)<a href="https://agentmods.dev/instructions/developersglobal/ai-agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/developersglobal/ai-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.
<a href="https://agentmods.dev/instructions/developersglobal/ai-agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/developersglobal/ai-agent-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00455 | $0.00455 |
| Opus 5.5 | $0.00182 | $0.00182 |
| Sonnet 5.5 | $0.00091 | $0.00091 |
| Haiku 4.5 | $0.00046 | $0.00046 |
Grade A, and why
ai-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 2mo 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.
What it actually says
AI Agent Instructions for This Repository
This repository contains AI agent skills — structured markdown skill files for production-grade AI-assisted development.
When Working in This Repository
- Reading skills: Skills are in
skills/<name>/SKILL.md. Read the full SKILL.md before making any edits. - Adding skills: Follow the template in
docs/skill-template.mdexactly. Every section is required. - Editing skills: Only edit the skill you're asked to change. Don't refactor adjacent skills.
- Testing skills: Test by applying the skill to a real agent session and verifying the output quality.
Repository Structure
skills/ ← All 30 skill files (SKILL.md per directory)
agents/ ← Specialist agent persona definitions
references/ ← Supporting checklists (security, performance, etc.)
docs/ ← Setup guides, skill anatomy, template
.claude/ ← Claude Code slash commands
.gemini/ ← Gemini CLI commands
.github/ ← GitHub Actions workflows
docs/ ← GitHub Pages site (index.html)
Key Principles
- Skills are workflows, not prose — agents follow steps, not skim docs
- Every step has a verification gate — "seems right" is never sufficient
- Skills include anti-rationalization tables — common excuses + rebuttals
- Skills are minimal — only what's needed to guide the agent through the task
When Adding a New Skill
- Create directory
skills/<kebab-name>/ - Create
SKILL.mdusing the template fromdocs/skill-template.md - Add to
skills/index.jsonfor the GitHub Pages search to pick it up - Update
README.mdskills table
Validation
Before a skill is merged:
- Applied to at least one real agent session
- All sections filled (no "TODO" or empty sections)
- Verification criteria are concrete (not "make sure it works")
- Anti-rationalization table has at least 3 entries
- Added to
skills/index.json
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.
- 2mo ago First seen · 47 lines · 455 tokens per session scan A 59cace12f47d
ai-agent-skills AGENTS.md is an instructions file published in the GitHub repository DevelopersGlobal/ai-agent-skills (216 stars, last pushed 9d ago), licensed MIT. It adds 455 tokens to every session, about $0.0018 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 2026-08-30.
ai-agent-skills AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| ai-agent-skills AGENTS.mdDevelopersGlobal/ai-agent-skills | Instructions file | 216 | 9d ago | MIT | A | 455 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |