Dev-Card: A Claude Code Skill That Generates Developer Identity Cards from Git History

Dev-Card is a Claude Code skill that analyzes a git repository and generates a shareable Developer Identity Card. The tool assigns developers one of 11 archetypes based on their git history analysis.

How It Works

The skill runs a Python analyzer that processes git data locally without API calls. It examines four key metrics:

• Commit timing: Hour-of-day and day-of-week distribution
• Language breakdown: Programming languages used in the repository
• Commit message patterns: Ratios of fix/feat/refactor/wip commit types
• Commit size distribution: Distinguishes between sprinter vs. marathon coding styles

The Python analyzer outputs JSON data, which Claude then reads along with an archetypes reference to generate the final card. The result includes a developer archetype name, tagline, and specific metrics about coding patterns.

Example Output

One user's result on their repository showed:

# 🃏 Dev Card: K — The Dawn Deployer
> "Ships before standup. Commits at dawn."
| Peak Window | 6am – 8am |
| Most Active | Monday |
| Commit Style | Marathon · avg 417 lines/commit |
| Dominant Intent | Feature builder (77%) |

The archetype "The Dawn Deployer" was assigned based on commit timing showing peak activity between 6am-8am, with Monday being the most active day. The commit style was identified as "Marathon" with an average of 417 lines per commit, and 77% of commits were feature-related.

The skill is available as an open-source project on GitHub at https://github.com/likw99/agent-skills.