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/wyattowalsh/agents/agents-mdgit clone --depth 1 https://github.com/wyattowalsh/agentsWhat 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 | $0.09353 | $0.09353 |
| Opus 5 | $0.04677 | $0.04677 |
| Sonnet 5 | $0.01871 | $0.01871 |
| Haiku 4.5 | $0.00935 | $0.00935 |
Grade A, and why
agents 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.
How it starts
The opening of the file, as written. The whole thing — 465 lines — stays where its author put it; the contents beside it link to each section on GitHub.
@./instructions/global.md
AGENTS.md — AI Agent Asset Standards
This file is the source of truth for asset formats, naming conventions, and workflows in this repository.
1. Asset Formats
Skill Format (skills/<name>/SKILL.md)
Skills use YAML frontmatter followed by a markdown body.
Required fields:
| Field | Type | Constraints |
|---|---|---|
name |
string | kebab-case, max 64 chars, must match directory name |
description |
string | non-empty, max 1024 chars |
Optional fields (cross-platform, agentskills.io spec):
| Field | Type | Default | Description |
|---|---|---|---|
license |
string | — | SPDX identifier (e.g., MIT) |
compatibility |
string | — | Environment requirements, max 500 chars |
allowed-tools |
string | — | Space-delimited tool allowlist (experimental) |
metadata.author |
string | — | Skill author |
metadata.version |
string | — | Semantic version |
metadata.internal |
boolean | false |
If true, hidden unless INSTALL_INTERNAL_SKILLS=1 |
Optional fields (Claude Code extensions):
| Field | Type | Default | Description |
|---|---|---|---|
argument-hint |
string | — | Shown during autocomplete (e.g., "[query]") |
model |
string | — | Model override: sonnet | opus | haiku |
context |
string | — | fork to run in isolated subagent |
agent |
string | — | Subagent type when context: fork |
user-invocable |
boolean | true |
Set false to hide from / menu |
disable-model-invocation |
boolean | false |
Set true to prevent auto-invocation |
hooks |
object | — | Lifecycle hooks scoped to this skill |
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 · 465 lines · 9,353 tokens per session scan A 493741a06fda
agents AGENTS.md is an instructions file published in the GitHub repository wyattowalsh/agents (5 stars, last pushed 12d ago), licensed MIT. It adds 9,353 tokens to every session, about $0.0468 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
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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 oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.