impact-analysis
Impact analysis for understanding how code changes affect the system. Covers git diff analysis, entity mapping, flow identification, and regression suggestions. Use this skill when analyzing branches, planning testing, or understanding change scope.
npx skills add majiayu000/claude-skill-registry --skill impact-analysis --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Impact Analysis Skill Analyze the potential impact of code changes on the system. ## Overview Impact analysis identifies what parts of the system may be affected by a code change. Think of it like a **domino effect** - pushing one domino (making a change) may cause others to fall. ``` ┌─────────────────────────────────────────────────────────────┐ │ 1. Git Diff │ │ ↓ │ │ Gets list of modified files │ │ │ │ 2. Classification │ │ ↓ │ │ Groups by type: API, UI, DB, Tests │ │ │ │ 3. Entity Mapping │ │ ↓ │ │ Relates files to system entities │ │ │ │ 4. Flow Lookup │ │ ↓ │ │ Queries registries for related flows │ │ │ │ 5. Suggestions │ │ ↓ │ │ Generates list of potentially affected areas │ └─────────────────────────────────────────────────────────────┘ ``` ## When to Use This Skill - Analyzing a feature branch before merge - Planning regression testing scope - Understanding the blast radius of a change - Identifying related tests to run - Code review impact assessment ## Analysis Capabilities ### What It CAN Identify | Capability | Example | |------------|---------| | Modified files | "5 files changed in /products" | | Direct dependencies | "Orders depends on Products" | | Existing test
- Overview
- When to Use This Skill
- Analysis Capabilities
- What It CAN Identify
- What It CANNOT Identify
- Output Format
- Confidence Levels
- Interpreting Results
- Correct Interpretation
- Incorrect Interpretation
- Complementing the Analysis
- 1. Business Knowledge
- 2. Bug History
- 3. Developer Conversation
Get diff from main git diff main...feature/checkout-v2 --name-only Classify files
What does the impact-analysis skill do?
Impact analysis for understanding how code changes affect the system. Covers git diff analysis, entity mapping, flow identification, and regression suggestions. Use this skill when analyzing branches, planning testing, or understanding change scope.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill impact-analysis --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.