Fip

Skill skatekowski/wheee-plugin/skills/fip

Functionality Isolation Protocol — analyze dependencies for a file or symbol to understand the blast radius of changes. Use when running 'fip', 'dependency analysis', 'impact analysis', or before refactoring.From its SKILL.md

Install

npx -y skills add skatekowski/wheee-plugin --skill fip

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SKILL.md

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FIP — Functionality Isolation Protocol

Analyze the dependency graph of a file or symbol to understand what a change will affect.

Process

Identify the target (file path or symbol name from $ARGUMENTS)
Find all files that import/require the target
Find all files that the target imports/requires
Map the dependency tree (2 levels deep)
Identify protected zones (files that should NOT be modified)
Report the FIP scope

Output Format

## FIP Analysis: [target]

### Direct Dependencies (imports)
- [file] — imports [symbol]

### Reverse Dependencies (imported by)
- [file] — uses [symbol]

### FIP Scope (safe to modify)
- [file 1]
- [file 2]

### Protected (DO NOT modify)
- [file] — [reason: external API, shared config, etc.]

### Blast Radius
- X files in scope
- Y files protected
- Risk level: LOW / MEDIUM / HIGH

Rules

Always check for circular dependencies
Flag shared state (global variables, singletons, shared configs)
Include test files that test the target
Protected files: package.json, lock files, CI configs, shared types