Borrowing it
Nothing to install: this file belongs to CrowdStrike/foundry-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/CrowdStrike/foundry-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/CrowdStrike/foundry-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/crowdstrike/foundry-skills/agents-md)<a href="https://agentmods.dev/instructions/crowdstrike/foundry-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/crowdstrike/foundry-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/crowdstrike/foundry-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/crowdstrike/foundry-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 | $0.02485 | $0.02485 |
| Opus 5.5 | $0.00994 | $0.00994 |
| Sonnet 5.5 | $0.00497 | $0.00497 |
| Haiku 4.5 | $0.00248 | $0.00248 |
Grade A, and why
foundry-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.
How it starts
The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AI Agent Instructions for foundry-skills
This repository is an AI coding assistant plugin for CrowdStrike Falcon Foundry development. It provides specialized skills that guide AI assistants through building complete Foundry apps, covering UI pages, serverless functions, data collections, automation workflows, and API integrations.
The skills are markdown-based and usable by any AI coding assistant. Claude Code users should also see CLAUDE.md for plugin-specific hook and integration details.
Prerequisites
- Foundry CLI: Install cross-platform:
- macOS/Linux:
brew tap crowdstrike/foundry-cli && brew install crowdstrike/foundry-cli/foundry - Windows: Download https://assets.foundry.crowdstrike.com/cli/latest/foundry_Windows_x86_64.zip, expand it, add the installation directory to PATH
- macOS/Linux:
- Authentication: Run
foundry loginto authenticate with CrowdStrike, or usefoundry profile create --no-promptfor headless environments - Development Environment: Node.js, Python, or Go depending on your app requirements
- CLI Reference: https://docs.crowdstrike.com/r/v5114866
Repository Structure
skills/- 12 specialized development skills, each with aSKILL.mdfilehooks/- Plugin hook scripts for intent routing and safety enforcementuse-cases/- Real-world implementation patterns extracted from CrowdStrike Tech Hub blog postsskills/*/scripts/- Skill-specific helper scripts (OpenAPI adaptation, action search, Fusion redirect detection).claude-plugin/- Claude Code plugin manifest and marketplace configuration
Skills Ecosystem
The skills/ directory contains specialized skills that provide systematic approaches for Foundry development. These skills enforce best practices, prevent technical debt, and ensure platform-specific patterns are followed correctly.
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 Changed · +23 tokens per session d8a3e6af63fd
- 23d ago Changed · +2 tokens per session 76f1b0f2be33
- 1mo ago Changed · +11 lines · +335 tokens per session b595410429a2
- 1mo ago First seen · 177 lines · 2,125 tokens per session scan A c855e3d1d679
foundry-skills AGENTS.md is an instructions file published in the GitHub repository CrowdStrike/foundry-skills (35 stars, last pushed yesterday), licensed MIT. It adds 2,485 tokens to every session, about $0.0099 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 2026-08-30.
Other instructions, from other repositories
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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.