Borrowing it
Nothing to install: this file belongs to vanducng/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/vanducng/skills/main/AGENTS.mdgit clone --depth 1 https://github.com/vanducng/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/vanducng/skills/agents-md)<a href="https://agentmods.dev/instructions/vanducng/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/vanducng/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/vanducng/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/vanducng/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 | $0.00971 | $0.00971 |
| Opus 5.5 | $0.00388 | $0.00388 |
| Sonnet 5.5 | $0.00194 | $0.00194 |
| Haiku 4.5 | $0.00097 | $0.00097 |
Grade A, and why
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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
This repository is a daily-driver collection of skills for agentic coding, described by skills.toml. Skill packages live under skills/<name>/ and each package must include SKILL.md with valid frontmatter. Skill-specific scripts, references, and assets stay inside that skill directory, for example skills/file-browser/scripts/ and skills/file-browser/assets/. Repository helpers live in scripts/ (install/uninstall/validate/check-*). The vd CLI that installs and manages these skills lives in a separate repo, not here. Agent-generated working artifacts (reports, plans, visuals, journals, state) live under a gitignored .workbench/ umbrella when the project opts in via .vd.json (paths.umbrella); otherwise the legacy plans/ layout applies. With paths.layout: feature-first set, those artifacts nest per-feature under .workbench/features/{ticket}-{slug}/{plans,reports,visuals,journals,state}/ (plus root-level _global/ and _archive/), managed by the workbench skill, instead of flat type-first siblings. Producer skills always write to the hook-injected Reports:/Plans:/Visuals:/Journals: paths - never construct the layout by hand (enforced by scripts/check-skill-paths.sh).
Build, Test, and Development Commands
bash scripts/new-skill.sh my-new-skill: scaffold a new skill directory.bash scripts/validate.sh: validate everyskills/*/SKILL.mdfrontmatter block.bash scripts/install.sh/scripts/uninstall.sh: install/remove the skills locally (Claude Code dev symlinks into~/.claude/skillsonly; usevd install codexfor the Codex~/.agents/skillsnamespace).bash scripts/check-docs-site.sh --check: verifydocs/tracks the catalog.bash scripts/check-install-conflicts.sh: check for skill ID/file conflicts.cd skills/file-browser && npm test: run the file-browser server tests.cd skills/file-browser && npm start: run the local file-browser server.
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.
- 1mo ago First seen · 42 lines · 971 tokens per session scan A 301664ad1f88
skills AGENTS.md is an instructions file published in the GitHub repository vanducng/skills (8 stars, last pushed today), licensed MIT. It adds 971 tokens to every session, about $0.0039 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 2026-08-31.
Other instructions, from other repositories
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next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
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AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.