Borrowing it
Nothing to install: this file belongs to manager-dot-dev/manager-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/manager-dot-dev/manager-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/manager-dot-dev/manager-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/manager-dot-dev/manager-skills/agents-md)<a href="https://agentmods.dev/instructions/manager-dot-dev/manager-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/manager-dot-dev/manager-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/manager-dot-dev/manager-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/manager-dot-dev/manager-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 | $0.00324 | $0.00324 |
| Opus 5.5 | $0.00130 | $0.00130 |
| Sonnet 5.5 | $0.00065 | $0.00065 |
| Haiku 4.5 | $0.00032 | $0.00032 |
Grade A, and why
manager-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
AGENTS.md
Guidelines for AI agents working in this repository.
Repository Overview
This repository contains Agent Skills for engineering managers, following the Agent Skills specification. Skills install to .agents/skills/ (the cross-agent standard).
- Name: Engineering Management Skills
- License: MIT
Repository Structure
engineeringmanagementskills/
├── skills/ # Agent Skills
│ └── skill-name/
│ ├── SKILL.md # Required skill file
│ └── references/ # Optional supporting docs
├── CONTRIBUTING.md
├── AGENTS.md
├── LICENSE
└── README.md
Skill File Requirements
Every SKILL.md must have valid YAML frontmatter:
---
name: skill-name
description: When to use this skill. Include trigger phrases.
metadata:
version: 1.0.0
---
Rules:
namemust match directory name exactlynameis 1-64 chars, lowercase alphanumeric + hyphens onlydescriptionis 1-1024 characters- Keep
SKILL.mdunder 500 lines; move reference material toreferences/
Foundation Skill
em-context is the foundation. All other skills should instruct the agent to read .agents/em-context.md (or .agents/skills/em-context/SKILL.md) before proceeding, so they have team and org context.
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 · 48 lines · 324 tokens per session scan A 7a86fb26ab8c
manager-skills AGENTS.md is an instructions file published in the GitHub repository manager-dot-dev/manager-skills (116 stars, last pushed 6mo ago), licensed MIT. It adds 324 tokens to every session, about $0.0013 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.
manager-skills AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| manager-skills AGENTS.mdmanager-dot-dev/manager-skills | Instructions file | 116 | 6mo ago | MIT | A | 324 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |