Coverage Gap Reporter
Parse coverage outputs, map changed files to uncovered risk areas, and recommend targeted tests.
DocumentationRequirements & limits
Use when coverage artifacts need to be mapped to changed files and uncovered regression risk.
Inputs
- coverage report or JSON artifact
- changed files or target module list
- coverage adapter or report format hint
Outputs
- Coverage gap report
- Risk-ranked files
- Suggested tests
Before you begin
- Reading and copying the procedure require no terminal setup. Check requirements for any packaged programs separately.
Try this first
Read the procedure and supply its documented inputs. Use the full text in an agent app or chat that supports pasted instructions, following that host's guidance.
Limits for this step
- Instruction package only; it does not provide or authorize an executable runtime capability.
- Safe for coverage analysis and recommendation; require human approval before modifying CI coverage gates.
Read full instructionsHide full instructions
Coverage Gap Reporter
When to use
- Use when a PR or branch has fresh coverage output.
- Use when you need coverage evidence for changed files.
- Use when coverage dropped and the next test target is unclear.
Inputs required
- coverage report or JSON artifact
- changed files or target module list
- coverage adapter or report format hint
Workflow
- Parse the coverage source using the configured adapter.
- Isolate changed files or requested modules.
- Report per-file coverage and notable uncovered areas.
- Translate uncovered areas into concrete test suggestions.
- Call out missing or incompatible coverage data explicitly.
Output format
- Coverage Summary
- Changed File Coverage
- Uncovered Risk Areas
- Suggested Tests
- Data Quality Notes
Guardrails
- Do not guess line coverage when the report is incomplete.
- Distinguish missing coverage data from low coverage.
- Tie recommendations to reported uncovered areas.
- Keep outputs deterministic and file-scoped.
Failure modes
- If no adapter matches the report, ask for the supported format.
- If changed files are absent from the report, mark the result incomplete.
- If coverage is stale, say so explicitly.
View file metadata
---
name: coverage-gap-reporter
description: Interpret coverage reports for changed code and turn them into
actionable, file-level test recommendations.
---Install instruction files
These commands copy guidance into the selected runtime directories. Confirm that your agent app discovers it. Any packaged programs need separate setup and verification.
Install (Codex)
./bin/skills-hub install engineering/[email protected] --runtime codex
Install (Claude)
./bin/skills-hub install engineering/[email protected] --runtime claude
Install (Generic)
./bin/skills-hub install engineering/[email protected] --runtime generic --target ./my-agent/skills