ludo-technologies Python Code Health Check with pyscn
Run the pyscn CLI to give a quick, quantified picture of code quality. No install needed:
uvx pyscn@latest analyze <path>
The summary output includes a health score (0-100), a letter grade (A-F), and per-category metrics.
Commands
| User Request | Command |
|---|---|
| "How healthy is this code?" | uvx pyscn@latest analyze <path> |
| "Give me a quality overview" | Same command; walk through the category breakdown |
| "Did my refactoring improve quality?" | Run before and after, compare scores |
For machine-readable detail add --json. Report files are NOT written to stdout. They go to .pyscn/reports/ under the current working directory and the path is printed on completion; read that file.
Interpreting Results
- Score 0-100 with letter grade; category breakdowns cover complexity, dead code, duplication, coupling (CBO), cohesion (LCOM), dependencies, and architecture.
- Lead with the grade and the weakest categories, then name the top offenders (files/functions) driving them.
- For deeper follow-up, hand off to the focused skills: refactoring targets →
refactoring, module structure →architecture-review.
Always explain the score in plain terms and suggest the highest-impact next step.
MCP Alternative
If the pyscn-mcp MCP server is connected, you can use its tools instead of the CLI: get_health_score (score + grade) or analyze_code (output_mode: "summary" gives the health score plus high-level metrics per category). Results are returned inline with no report files.