SkillsAdd

equinor/fusion-skills

fusion-rules

Entrypoint for AI coding assistant rule authoring across GitHub Copilot, Cursor, and Claude Code.

First seen Mar 22, 2026

Installation

$ npx skills add equinor/fusion-skills --skill fusion-rules
View on skills.sh ↗ GitHub repository ↗

Summary

  • Entrypoint for AI coding assistant rule authoring across GitHub Copilot, Cursor, and Claude Code.
  • USE FOR: setting up rules, reviewing existing rules, scaffolding instruction files, or asking which editor format to use.
  • DO NOT USE FOR: authoring skills (SKILL.md), agent definitions (.agent.md), or CI enforcement of rule files.

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Declared
Cursor Declared
Codex Not declared
GitHub Copilot Declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Repository health

Stars 1
License LICENSE
Default branch main
Open issues 2
Status Active

Skill metadata

Parsed from SKILL.md frontmatter.

Version0.1.1
LicenseMIT
Declared agents claude-code cursor github-copilot
More metadata
version
0.1.1
status
active
owner
@equinor/fusion-core
role
orchestrator
orchestrator
.system/fusion-rule-author
skills
["agents\/copilot.agent.md","agents\/cursor.agent.md","agents\/claude-code.agent.md"]
tags
["copilot","cursor","claude-code","rules","instructions","developer-experience","onboarding","entrypoint"]

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 2,900 B
  • docs SUMMARY.md 348 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 977 installs

SKILL.md

Fusion Rules

Gateway for AI coding assistant rule authoring. Detects the target editor and routes to the right agent.

Routing

Intent Agent
Set up GitHub Copilot instructions / rules agents/copilot.agent.md
Set up Cursor project rules agents/cursor.agent.md
Set up Claude Code rules / CLAUDE.md agents/claude-code.agent.md
Set up rules for all editors / mixed team Run all three agents sequentially
Review or improve existing rules Route to the agent matching the file format

Intent detection

Detect target editor from the request:

  • Copilot — "copilot", "copilot-instructions", ".github/instructions", "applyTo"
  • Cursor — "cursor", ".cursor/rules", "mdc", "alwaysApply", "globs"
  • Claude Code — "claude", "CLAUDE.md", ".claude/rules", "paths"
  • All / unknown — "rules", "instructions", "set up AI rules", or no editor specified

Route directly on detected intent. No editor specified → run all three agents.

Loading behavior

Load ONLY the routed agent file. Each agent carries the full workflow and references .system/fusion-rule-author/ assets and templates on demand. Don't preload all agents.

Multi-editor workflow

When targeting multiple editors:

  1. Run first agent's scan and interview (Steps 1–3) in full
  2. Pass scan summary + interview answers as context to remaining agents — they skip Steps 1–3 and start at Step 4 (Classify)
  3. Each agent drafts, reviews, and writes files for its own editor format
  4. Generate parallel files with equivalent content — no duplication within a single editor

What this skill does NOT do

  • Author skills (SKILL.md) — use fusion-skill-authoring
  • Author agent definitions (.agent.md) — separate concern
  • Write CI checks for rule validation — out of scope
  • Migrate entire legacy codebases — incremental adoption only

Safety

  • No secrets or credentials in rule files
  • No overwrites without showing diff and getting approval
  • No invented conventions — only document what the developer confirms
  • Show drafts before writing any files