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/agentplugins/agent-plugins-spec/agents-mdgit clone --depth 1 https://github.com/agentplugins/agent-plugins-specWhat 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 | $0.00868 | $0.00868 |
| Opus 5 | $0.00434 | $0.00434 |
| Sonnet 5 | $0.00174 | $0.00174 |
| Haiku 4.5 | $0.00087 | $0.00087 |
Grade A, and why
agent-plugins-spec 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 yesterday.
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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- yesterday First seen · 61 lines · 868 tokens per session scan A a88c69444ba4
agent-plugins-spec AGENTS.md is an instructions file published in the GitHub repository agentplugins/agent-plugins-spec (1,187 stars, last pushed 12d ago), with no licence file. It adds 868 tokens to every session, about $0.0043 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 2026-08-30.
Other instructions, from other repositories
agent-plugins copilot-instructions.md
Instructions for awslabs/agent-plugins, covering project overview, technology stack, code organization, development practices and plugin development guidelines.
modelcontextprotocol CLAUDE.md
Claude Code instructions for modelcontextprotocol/modelcontextprotocol, a project described as: Specification and documentation for the Model Context Protocol.
EverMe AGENTS.md
Instructions for EverMind-AI/EverMe, covering agents.md, goal (pick one per pr), build & test, pre-pr checks (match ci gates) and commit & pr.
pruna-skills AGENTS.md
Instructions for PrunaAI/pruna-skills, covering pruna skills (agent notes), how it works, clarification (library-wide), install and layout.
cargo-skills AGENTS.md
Instructions for getcargohq/cargo-skills, covering cargo skills — agent guide and working in this repo.
agent-plugins CLAUDE.md
Claude Code instructions for orin-dx/agent-plugins, covering claude code guidelines (claude.md), 1. quick reference & commands, 2. authoring guidelines & single source of truth and 3. directory conventions.