snqb/hotspot-detective
hotspot-detective/SKILL.md
Identify high-churn files ("hotspots") using git forensics. Frequently changed files often indicate complexity, technical debt, or violations of the Single Responsibility Principle.
$ install --global
skillsauthnpx skillsauth add snqb/my-skills hotspot-detectiveInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
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Snyk (dep)Open source security scanning
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Last scanned: Apr 14, 2026, 11:54 PM1.4s1 file scanned
SKILL.md
- name:
- hotspot-detective
- description:
- Identify high-churn files ("hotspots") using git forensics. Frequently changed files often indicate complexity, technical debt, or violations of the Single Responsibility Principle.
Hotspot Detective
"Code that changes together, breaks together." Find the most volatile parts of your codebase.
Capabilities
- Churn Analysis: Identify files with the most commits.
- Complexity-Churn Matrix: Cross-reference hotspots with complexity.
- Coupling Detection: Find files that often change in the same commit.
Tools
1. Find Top Hotspots (Churn)
Files changed most frequently in the last 6 months.
git log --since="6 months ago" --name-only --format="" | sort | uniq -c | sort -nr | head -20
Interpretation:
- Top files are your "active complexity".
- If a file is in the top 5 AND has high complexity (from
uncomplex), it is a Critical Refactoring Candidate.
2. Find Recent Volatility
What are we working on right now? (Last 30 days)
git log --since="30 days ago" --name-only --format="" | sort | uniq -c | sort -nr | head -20
3. Find Temporal Coupling (Co-Change)
"When I change A, I usually have to change B."
# Find commits touching a specific file, then list other files in those commits
git log --name-only --format="" $(git log --format="%H" -- <file>) | sort | uniq -c | sort -nr | head -10
Usage:
- Identify a hotspot (e.g.,
user_model.py). - Run this command on
user_model.py. - If
auth_service.pyappears at the top, they are tightly coupled.
Workflow
- Scan: Run "Find Top Hotspots".
- Cross-Ref: Run
uncomplexon the top 3 files. - Diagnose:
- High Churn + High Complexity = Refactor Immediately.
- High Churn + Low Complexity = God Class / Config Dump.
- Low Churn + High Complexity = Stable (Leave alone).
Dependencies
git(Pre-installed)
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