git-history-analyzer

Use this agent when you need to understand the historical context and evolution of code changes, trace the origins of specific code patterns, identify key contributors and their expertise areas, or analyze patterns in commit history. This agent excels at archaeological analysis of git repositories to provide insights about code evolution and development patterns.

1.17x

Quality

66%

Does it follow best practices?

Impact

95%

1.17x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Fix and improve this skill with Tessl

tessl review fix ./.agents/skills/05-review/git-history-analyzer/SKILL.md

Evaluation results

85%

Refactoring Risk Assessment for chalk's Core Module

File evolution and blame tracing

Criteria

Without context

With context

Uses --follow flag

100%

--oneline -20 limit

50%

25%

Uses git blame -w -C -C -C

46%

Timeline section present

100%

Key Contributors section present

100%

Historical Issues section present

100%

Pattern of Changes section present

100%

Broad-to-specific ordering

100%

90%

Cloned repo cleaned up

100%

30%

Developer Expertise Map for Bug Triage

Contributor mapping and commit pattern recognition

Criteria

Without context

With context

Uses git shortlog -sn

100%

Uses git log --grep

100%

Searches multiple keywords

100%

Key Contributors section present

100%

Historical Issues section present

100%

Pattern of Changes section present

100%

Timeline section present

100%

Cross-references contributors to files

100%

Cloned repo cleaned up

100%

API Change Archaeology for yargs-parser

Historical pattern extraction with git log -S

Criteria

Without context

With context

Uses git log -S

100%

--oneline with -S

100%

Broad view first

100%

Timeline section present

100%

Key Contributors section present

100%

Historical Issues section present

100%

Pattern of Changes section present

100%

camelCase introduction documented

100%

Cloned repo cleaned up

100%

Repository: marchatton/agent-skills
Commit: a0eadb2

Evaluated: 4 months ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Refactoring Risk Assessment for chalk's Core Module Developer Expertise Map for Bug Triage API Change Archaeology for yargs-parser

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