# Change Impact Checker

> Evaluate likely change impact before edits and command execution. Use when modifying code, configs, infra, automation, or dependencies. Highlight affected components, regression risk, and validation needs.

- Skill: `alubiama/change-impact-checker` (Agent Skill)
- Install (CLI): `npx skillmds@latest add alubiama/change-impact-checker`
- Raw SKILL.md: https://api.skillmd.com/api/skills/alubiama/change-impact-checker/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: Alubiama (https://skillmd.com/u/alubiama)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/alubiama/change-impact-checker

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# Change Impact Checker

## Goal

Catch regressions early by mapping blast radius before changes.

## Impact Workflow

1. Identify target files/components.
2. Map direct and indirect dependencies.
3. Estimate regression risk (`low/medium/high`).
4. Define required tests/checks before and after.
5. Recommend smallest safe change order.

## Risk Signals

- Touching shared libraries or critical paths.
- Changing auth, billing, state, data writes, or scheduling.
- Updating dependencies with unknown compatibility.

## Output Contract

Always output:

1. `affected_components`
2. `risk_level`
3. `required_validation`
4. `safe_change_order`

## Guardrails

- Do not skip validation steps for medium/high impact changes.
- Escalate uncertainty when impact cannot be estimated confidently.