Test Coverage Report

Generate and analyze test coverage for your project.

Usage

/craft:code:coverage [options]

What This Does

1. Runs test suite with coverage instrumentation
2. Generates coverage report (terminal, HTML, or JSON)
3. Identifies uncovered code with file and line details
4. Tracks coverage trends over time

Project Type Detection

Project	Tool	Config
Python	pytest-cov, coverage.py	pyproject.toml, .coveragerc
JavaScript	c8, nyc, jest --coverage	package.json
R	covr	-
Go	go test -cover	-
Rust	cargo tarpaulin	-

Options

• --html - Generate HTML report
• --json - Generate JSON report
• --fail-under <N> - Fail if coverage below N%
• --branch - Include branch coverage

Examples

# Basic coverage report
/craft:code:coverage

# Generate HTML report
/craft:code:coverage --html

# CI mode with threshold
/craft:code:coverage --fail-under 80

# Include branch coverage
/craft:code:coverage --branch

Output

Running tests with coverage...

Name                    Stmts   Miss  Cover
-------------------------------------------
src/main.py               120     12    90%
src/utils.py               45      5    89%
src/api/handlers.py        80     20    75%
tests/conftest.py          30      0   100%
-------------------------------------------
TOTAL                     275     37    87%

Uncovered lines:
  src/api/handlers.py: 45-48, 72-80

Integration

Works with:

• /craft:test:run - Run tests
• /craft:code:ci-local - Pre-commit checks
• /craft:code:release - Release validation