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.
npx agentmods add instructions/webbertakken/agent-skills/agents-mdgit clone --depth 1 https://github.com/webbertakken/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/webbertakken/agent-skills/agents-md)<a href="https://agentmods.dev/instructions/webbertakken/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/webbertakken/agent-skills/agents-md.svg" alt="Measured on agentmods" 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 | $0.00135 | $0.00135 |
| Opus 5 | $0.00068 | $0.00068 |
| Sonnet 5 | $0.00027 | $0.00027 |
| Haiku 4.5 | $0.00014 | $0.00014 |
Grade A, and why
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 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.
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
Agent guidelines
- Skills live in
skills/<skill-name>/SKILL.md - Skill names must be kebab-case and match directory name
- SKILL.md requires YAML frontmatter with
nameanddescription - Keep SKILL.md under 200 lines; split detailed content into
references/ - Skills must be tool-agnostic - never hardcode config paths, unless referencing tool specific exceptions (e.g.
~/.claude/CLAUDE.mdforCLAUDE.mdfile) - Run
npx markdownlint-cli2 "**/*.md"andbash scripts/validate-skills.shbefore committing
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.
- 3d ago First seen · 9 lines · 135 tokens per session scan A 6e092192a0e0
agent-skills AGENTS.md is an instructions file published in the GitHub repository webbertakken/agent-skills (3 stars, last pushed 2mo ago), licensed MIT. It adds 135 tokens to every session, about $0.0007 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 2026-08-31.
Other instructions, from other repositories
my-ai-tools GEMINI.md
Gemini CLI instructions for jellydn/my-ai-tools, covering 🤖 gemini cli agent guidelines - my-ai-tools, 🚀 project overview, 🛠️ key commands, installation & sync and development & testing.
ai-assistant-instructions CLAUDE.md
Instructions for dryvist/ai-assistant-instructions: Canonical agent instructions live in AGENTS.md and agentsmd/rules/. Nix-managed machines auto-load both globally via nix-ai, so this file deliberately does not re-import them — doing so would load every byte twice in each session. Non-Nix contributors: read AGENTS.md…
linkcode AGENTS.md
AGENTS.md instructions for arcboxlabs/linkcode, covering agents.md, invariants — ranked by blast radius, routing — touching x, read y first, planning and change discipline.
ai-launcher AGENTS.md
AGENTS.md instructions for jellydn/ai-launcher, covering agents.md, project overview, commands, code style guidelines and core principles.
agentops CLAUDE.md
Claude Code instructions for boshu2/agentops, a project described as: The operations layer for agentic engineering — portable skills and contracts connecting intent, agents, software factories, and independent judgment.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).