fusion-skills AGENTS.md

fusion-skills AGENTS.md is an instructions file for Codex, OpenCode from CrowdStrike/fusion-skills. It costs 2,473 tokens per session, scanned A, original, MIT.

A tool-independent guide to Fusion Skills, a plugin for AI coding assistants that creates and manages CrowdStrike Falcon Fusion workflows and SIEM lookup files. A workflow is an automated sequence of security actions; a lookup file stores data used by security searches.

In plain words
What is it for?
Discovering CrowdStrike action IDs, writing and validating workflow YAML, importing and running workflows, monitoring executions, and managing Falcon Next-Gen SIEM lookup files.
Why use it?
It describes the required credentials, software, repository structure, and distinction between a standalone Fusion workflow and a Falcon Foundry app.

Instructions file for CodexOpenCode

Installs and runs on its own, but its text points at files inside the plugin that ships it — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed.

Install

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.

agentmods
npx agentmods add instructions/crowdstrike/fusion-skills/agents-md
Clone the repo
git clone --depth 1 https://github.com/CrowdStrike/fusion-skills

Made for: Codex, OpenCode.

Wrote 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.

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/crowdstrike/fusion-skills/agents-md.svg)](https://agentmods.dev/instructions/crowdstrike/fusion-skills/agents-md)
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<a href="https://agentmods.dev/instructions/crowdstrike/fusion-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/crowdstrike/fusion-skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,473 This file is loaded in full into every session.
When invoked 2,473 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.02473 $0.02473
Opus 5 $0.01236 $0.01236
Sonnet 5 $0.00495 $0.00495
Haiku 4.5 $0.00247 $0.00247

Measured 4d ago against content hash 2d3673ad8443, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fusion-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 4d 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.

AGENTS.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

A tool-agnostic guide to the fusion-skills plugin for AI coding assistants that are not Claude Code (Codex, GitHub Copilot, Antigravity, and others). Claude Code users get the same content via the plugin system and CLAUDE.md; this file lets any agent use the skills directly.

What This Is

fusion-skills automates Falcon Fusion workflow creation: discover real action IDs from the live API, author workflow YAML, validate it against the platform schema, import it to a CID, and trigger and monitor its execution. It also manages Falcon Next-Gen SIEM lookup files.

A standalone workflow runs directly against Fusion with no Falcon Foundry app wrapper. If you need a manifest.yml, custom UI, serverless functions, or collections, that is a Foundry app — use the foundry-skills plugin instead.

Prerequisites

  • Python 3.13+
  • crowdstrike-falconpy (pip install crowdstrike-falconpy)
  • CrowdStrike API credentials with the Workflow scope (plus NGSIEM Lookup Files for the lookup-files skill)

Configure credentials with the setup command (writes the TOML profile at ~/.cache/crowdstrike-falcon-fusion/credentials.toml):

/crowdstrike-falcon-fusion:setup

For CI or a one-off override, set environment variables instead:

export FALCON_CLIENT_ID=your_client_id_here
export FALCON_CLIENT_SECRET=your_client_secret_here
# export FALCON_BASE_URL=https://api.crowdstrike.com  # US-1 (default)

Verify credentials:

python common/scripts/auth.py

Repository Structure

skills/
  workflows/      Orchestrator skill — SKILL.md decision tree + references/
  authoring/      action_search.py, validate.py, trigger_search.py, examples/
  deployment/     import_workflows.py, release_workflow.py, query_workflows.py, delete_workflow.py
  execution/      trigger_workflow.py, monitor_execution.py, get_execution_results.py
  lookup-files/   list/get/create/update/delete_lookup.py, references/, assets/
  setup/          SKILL.md — interactive credential setup
common/scripts/   auth.py — shared API auth (single source of truth)
use-cases/        Pattern-matchable workflow scenarios (frontmatter + markdown)
hooks/            Claude Code hooks (intent routing, cross-plugin advisory)

Read the full file on GitHub · 164 lines

Changes

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.

  1. 4d ago First seen · 164 lines · 2,473 tokens per session scan A 2d3673ad8443

Subscribe to this mod's changes

fusion-skills AGENTS.md is an instructions file published in the GitHub repository CrowdStrike/fusion-skills (13 stars, last pushed 3d ago), licensed MIT. It adds 2,473 tokens to every session, about $0.0124 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.

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