/configure:coverage

Check and configure code coverage thresholds and reporting for test frameworks.

When to Use This Skill

Use this skill when... Use another approach when...

Setting up coverage thresholds for Vitest, Jest, pytest, or Rust Running tests with coverage (/test:coverage )

Configuring coverage reporters (text, JSON, HTML, lcov) Configuring the test framework itself (/configure:tests )

Adding Codecov or Coveralls integration to CI/CD Analyzing test failures (test-runner agent)

Auditing coverage configuration compliance across a project Writing individual test cases

Adjusting coverage threshold percentages Configuring general CI/CD workflows (/configure:workflows )

Context

• Project root: !pwd

• Package files: !find . -maxdepth 1 ( -name 'package.json' -o -name 'pyproject.toml' -o -name 'Cargo.toml' )

• Vitest config: !find . -maxdepth 1 -name 'vitest.config.*'

• Jest config: !find . -maxdepth 1 -name 'jest.config.*'

• Coverage dir: !find . -maxdepth 1 -type d -name 'coverage'

• Codecov config: !find . -maxdepth 1 ( -name 'codecov.yml' -o -name '.codecov.yml' )

• Project standards: !find . -maxdepth 1 -name '.project-standards.yaml'

Parameters

Parse from command arguments:

• --check-only : Report compliance status without modifications (CI/CD mode)

• --fix : Apply fixes automatically without prompting

• --threshold <percentage> : Set coverage threshold (default: 80)

Default threshold: 80% (lines, branches, functions, statements)

Supported frameworks:

• Vitest: @vitest/coverage-v8 or @vitest/coverage-istanbul

• Jest: Built-in coverage with --coverage

• pytest: pytest-cov plugin

• Rust: cargo-llvm-cov or cargo-tarpaulin

Execution

Execute this code coverage compliance check:

Step 1: Detect test framework and coverage configuration

Check for framework indicators:

Indicator Framework Coverage Tool

vitest.config.* with coverage Vitest @vitest/coverage-v8

jest.config.* with coverage Jest Built-in

pyproject.toml [tool.coverage] pytest pytest-cov

.cargo/config.toml with coverage Rust cargo-llvm-cov

Use WebSearch or WebFetch to verify latest versions of coverage tools before configuring.

Step 2: Analyze current coverage state

For the detected framework, check configuration completeness:

Vitest:

• Coverage provider configured (v8 or istanbul )

• Coverage reporters configured (text , json , html , lcov )

• Thresholds set for lines, functions, branches, statements

• Exclusions configured (node_modules, dist, tests, config files)

• Output directory specified

Jest:

• collectCoverage enabled

• coverageProvider set (v8 or babel )

• collectCoverageFrom patterns configured

• coverageThresholds configured

• coverageReporters configured

pytest:

• pytest-cov installed

• [tool.coverage.run] section exists

• [tool.coverage.report] section exists

• Coverage threshold configured (--cov-fail-under )

Rust (cargo-llvm-cov):

• cargo-llvm-cov installed

• Coverage configuration in workspace

• HTML/LCOV output configured

Step 3: Generate compliance report

Print a formatted compliance report:

Code Coverage Compliance Report

Project: [name] Framework: [Vitest 2.x | pytest 8.x | cargo-llvm-cov 0.6.x]

Coverage Configuration: Provider @vitest/coverage-v8 [CONFIGURED | MISSING] Reporters text, json, html, lcov [ALL | PARTIAL] Output directory coverage/ [CONFIGURED | DEFAULT] Exclusions node_modules, dist, tests [CONFIGURED | INCOMPLETE]

Thresholds: Lines 80% [PASS | LOW | NOT SET] Branches 80% [PASS | LOW | NOT SET] Functions 80% [PASS | LOW | NOT SET] Statements 80% [PASS | LOW | NOT SET]

CI/CD Integration: Coverage upload codecov/coveralls [CONFIGURED | MISSING] Artifact upload coverage reports [CONFIGURED | MISSING]

Overall: [X issues found]

If --check-only , stop here.

Step 4: Configure coverage (if --fix or user confirms)

Apply coverage configuration based on detected framework. Use templates from REFERENCE.md:

• Install coverage provider (e.g., @vitest/coverage-v8 , pytest-cov )

• Update config file with thresholds, reporters, exclusions

• Add scripts to package.json or pyproject.toml

• Configure CI/CD with Codecov upload and artifact storage

Step 5: Update standards tracking

Update .project-standards.yaml :

standards_version: "2025.1" last_configured: "[timestamp]" components: coverage: "2025.1" coverage_threshold: 80 coverage_provider: "[v8|istanbul|pytest-cov|llvm-cov]" coverage_reporters: ["text", "json", "html", "lcov"] coverage_ci: "codecov"

Step 6: Print final report

Print a summary of changes applied, scripts added, and next steps for verifying coverage.

For detailed configuration templates, see REFERENCE.md.

Agentic Optimizations

Context Command

Quick compliance check /configure:coverage --check-only

Auto-fix all issues /configure:coverage --fix

Custom threshold /configure:coverage --fix --threshold 90

Check coverage config exists find . -maxdepth 1 -name 'vitest.config.' -o -name 'jest.config.' 2>/dev/null

Verify coverage directory test -d coverage && echo "EXISTS"

Flags

Flag Description

--check-only

Report status without offering fixes

--fix

Apply all fixes automatically without prompting

--threshold <percentage>

Set coverage threshold (default: 80)

Examples

Check compliance and offer fixes

/configure:coverage

Check only, no modifications

/configure:coverage --check-only

Auto-fix with custom threshold

/configure:coverage --fix --threshold 90

Error Handling

• No test framework detected: Suggest running /configure:tests first

• Coverage provider missing: Offer to install

• Invalid threshold: Reject values <0 or >100

• CI token missing: Warn about Codecov/Coveralls setup

See Also

• /configure:tests

• Configure testing frameworks

• /test:coverage

• Run tests with coverage

• /configure:all

• Run all compliance checks

• Codecov documentation: https://docs.codecov.com

• pytest-cov documentation: https://pytest-cov.readthedocs.io