Borrowing it
Nothing to install: this file belongs to j-256/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/j-256/agent-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/j-256/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/j-256/agent-skills/agents-md)<a href="https://agentmods.dev/instructions/j-256/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/j-256/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/j-256/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/j-256/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 | $0.01855 | $0.01855 |
| Opus 5.5 | $0.00742 | $0.00742 |
| Sonnet 5.5 | $0.00371 | $0.00371 |
| Haiku 4.5 | $0.00186 | $0.00186 |
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 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.
How it starts
The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Repository-specific guidance for coding agents working on this Agent Skills repository. Keep platform-wide preferences in the user's global instructions rather than duplicating them here.
Repository overview
This repository distributes five Agent Skills as three self-contained Agent Plugins:
plugins/dsc/containsdsc-endpoint-help,dsc-scenario,dsc-scrape, their shared runtime, tests, documentation, and examplesplugins/fork-and-pr/contains thefork-and-prskill and its exampleplugins/stepped-demo-script/contains thestepped-demo-scriptskill, examples, template, and reference material
The DSC family works against Salesforce API references on developer.salesforce.com. See plugins/dsc/docs/dsc-skills.md for its architecture, boundaries, coverage, and extension guidance.
Documentation and compatibility
The plugin directories under plugins/ are canonical. Edit skill source files there. The editable DSC runtime source is plugins/dsc/shared/.
Root directories under skills/ are generated, self-contained copies for direct skill consumers. Do not edit them. Run node scripts/sync-standalone-skills.mjs --write after changing a canonical skill or the DSC runtime; check mode rejects missing, extra, changed, executable-mode-different, or symlinked generated entries. Repository-wide documentation and indexes live under docs/; package-specific documentation and examples stay with their canonical plugin skills. Link repository documentation to canonical plugin files instead of generated root copies.
Each plugin carries three manifests whose identity, version, description, and license must stay synchronized:
plugin.jsonfor the portable Agent Plugins specification.codex-plugin/plugin.jsonfor Codex.claude-plugin/plugin.jsonfor Claude Code
The root VERSION file owns the aggregate repository release version. It is independent from the package-specific plugin versions, which may diverge from one another and from the repository release train.
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 · 152 lines · 1,855 tokens per session scan A 76092aea6913
agent-skills AGENTS.md is an instructions file published in the GitHub repository j-256/agent-skills (2 stars, last pushed 13d ago), licensed MIT. It adds 1,855 tokens to every session, about $0.0074 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
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).
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
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
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).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.