# Affected

> Analyze which monorepo packages and apps are affected by current changes

- Skill: `georgeqle/affected` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add georgeqle/affected`
- Raw SKILL.md: https://api.skillmd.com/api/skills/georgeqle/affected/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: GeorgeQLe (https://skillmd.com/u/georgeqle)
- Updated: 2026-08-19
- Page: https://skillmd.com/skills/georgeqle/affected

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# Affected

Invoke as `$affected`.

Use this skill when the user wants to understand the blast radius of their current changes in a monorepo.

## Process

1. Determine the change set from git diff or a specified commit range.
2. Read the monorepo config to understand the package graph.
3. Map changed files to their packages.
4. Compute transitive dependents.
5. Check for cross-cutting changes (root configs, shared packages).
6. Recommend test commands for affected packages.

## Output

- **Directly Changed**: packages with file changes
- **Transitively Affected**: downstream dependents
- **Cross-Cutting**: root config changes affecting all packages
- **Recommended Test Commands**: specific commands to run

## Constraints

- Do not run tests — only analyze and recommend.
- Prefer Turbo-native filtering for Turborepo projects.


## Default Shipping Contract

Follow the shared shipping contract convention in CLAUDE.md.