code-health

name	code-health
description	Scans the codebase for dead code, tech debt, outdated dependencies, and code quality issues. Use periodically or before releases to maintain code hygiene.
context	fork
agent	centinela-qa

Run a comprehensive code health scan on the codebase.

Follow these steps:

SIGN IN:

• Run the SIGN IN checklist from your agent file
• Note any areas of concern based on past scans

SCAN -- Quality Attribute Assessment (FURPS):

Organize findings by quality attribute category (FURPS model, Hewlett-Packard):

F -- Functionality:

1. Scan for dead code:
   • Unused imports: ruff check --select F401 src/ or biome lint src/
   • Unused variables/functions: grep for definitions not referenced elsewhere
   • Commented-out code blocks: search for patterns spanning 3+ lines
   • Unreachable code after return/throw/break/continue
   • Files not imported by any other file

R -- Reliability: 2. Scan for flaky test indicators:

• Tests depending on timing (sleep, setTimeout, fixed delays)
• Tests sharing mutable state between test cases
• Tests making real network calls without mocking
• Tests depending on filesystem paths or system-specific state
• Non-deterministic assertions (floating point equality without tolerance, random data without seeding)

3. Check for outdated dependencies:
   • pip list --outdated or npm outdated
   • Known vulnerabilities: pip audit or npm audit

P -- Performance (complexity proxies): 4. Scan for Clean Code violations:

• Functions longer than 30 lines
• Files longer than 300 lines
• Deeply nested code (>3 levels of indentation)
• Duplicated logic blocks (DRY violations)
• Primitive obsession (raw strings/ints where a domain type belongs)
• Feature envy (methods that use another class's data more than their own)
• God classes (classes with too many responsibilities)

S -- Supportability: 5. Verify architecture compliance:

• Dependency direction: does business logic depend on frameworks or infrastructure?
• Layer leakage: are there imports that cross architectural boundaries incorrectly?
• Screaming Architecture: does folder structure reveal intent?

6. Check TODO/FIXME comments — do they have issue references?
7. Check for missing docstrings on public API functions: any function or class without a leading underscore in src/ files that lacks a docstring. Excludes test files and internal helpers (functions starting with _).

Note: U (Usability) is not assessed at code-health level -- this is a product concern owned by Prometeo.

Cost of Quality (COPQ) Classification

Categorize each finding by cost type (Feigenbaum 1956, O'Regan 2019):

• Prevention cost: Items that prevent defects if addressed (test coverage gaps, missing type hints, missing docstrings)
• Appraisal cost: Items that affect defect detection capability (flaky tests, weak assertions, inadequate test isolation)
• Internal failure cost: Defects already present, found internally (dead code, broken imports, architecture violations)
• External failure cost: Issues that could escape to users if not addressed (security vulnerabilities, missing error handling, unvalidated inputs)

In the code-health report, tag each finding with its FURPS category and COPQ type. Reports heavy on "external failure" items are more urgent than those with mostly "prevention" items.

References: FURPS (Hewlett-Packard), cited in Callejas-Cuervo et al. (2017). COPQ (Feigenbaum 1956), presented in O'Regan (2019) Ch. 9.3.5.

⏸️ TIME OUT — Scan Complete Checklist (DO-CONFIRM):

• All source directories scanned (not just src/ — also tests/, config files)
• Dead code findings verified (not false positives from dynamic imports or plugins)
• Dependency vulnerabilities checked with automated tools
• Flaky test indicators checked (timing, shared state, network, non-determinism)
• Findings prioritized: Critical > Warning > Suggestion
• Previous scan findings compared — are old issues resolved or recurring?

SIGN OUT: 6. Write findings to docs/reviews/code-health-{date}.md 7. Write the Findings Handoff-to-Forja using the communication checklist 8. Run the SIGN OUT checklist from your agent file