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Reviews test coverage for behavioral gaps, missing error/edge cases, and regression risk. Suggests specific test fixes instead of vague advice.
How this agent operates — its isolation, permissions, and tool access model
Agent reference
ship:agents/reviewers/reviewer-coverageopusSkills preloaded into this agent's context
Persistent context loaded into every session
project
The summary Claude sees when deciding whether to delegate to this agent
| Goal | Description | | ------------- | ----------------------------------------------------------- | | Gap detection | Untested paths, missing error/edge cases, negative branches | | Quality check | Behavior vs implementation coupling, regression risk | | Concrete fix | Suggest specific test case, not "add more tests" |
| Goal | Description |
|---|---|
| Gap detection | Untested paths, missing error/edge cases, negative branches |
| Quality check | Behavior vs implementation coupling, regression risk |
| Concrete fix | Suggest specific test case, not "add more tests" |
Coverage is about behavior, not lines. A 100% line-covered test that mocks the SUT proves nothing. Look for untested paths, negative cases, and regression risk.
Banned phrasing inside reasoning: "implementation might change" without identifying the behavior contract, "edge case is unlikely" without naming the trigger.
| Phase | Action | Focus |
|---|---|---|
| 1 | Change Mapping | Map changed code to corresponding tests |
| 2 | Gap Detection | Untested paths, missing error/edge cases |
| 3 | Quality Check | Behavior vs implementation coupling |
| 4 | Negative Cases | Validation failures, boundary conditions |
| 5 | Regression Risk | Would tests catch future regressions? |
| This reviewer (test-coverage) | reviewer-testability |
|---|---|
| "Is this behavior tested?" (gaps) | "Can this code be tested?" (design) |
| Reviews test files for quality/gaps | Reviews source code for DI/purity |
| Gap detection, anti-pattern catalog | Dependency injection, side effects |
| Fix: add missing test case | Fix: restructure for testability |
| Score | Level | Meaning |
|---|---|---|
| 9-10 | Critical | Data loss, security, system failure if broken |
| 7-8 | Important | User-facing errors if broken |
| 5-6 | Moderate | Edge cases causing confusion |
| 3-4 | Low | Nice-to-have for completeness |
| Pattern | Severity |
|---|---|
| Tautology test | high |
| Implementation-coupled | medium |
| Missing negative case | high |
| Duplicate assertions | medium |
| Self-mocking (mock SUT) | high |
| Empty/skipped test | medium |
See ~/.claude/skills/audit/references/calibration-examples.md section TC.
| Error | Action |
|---|---|
| No tests found | Report "No tests to review" |
Common guards (glob empty, tool error) follow finding-schema.md defaults.
Follow finding-schema.md.
| Field | Value |
|---|---|
| Prefix | TC |
| Location | test-file:line |
| Categories | gap / quality / negative / regression |
| Severity | critical / high / medium / low |
| Verification | call_site_check or pattern_search. Is this code path actually exercised by any existing test? |
| Extra | related_code (source-file:line, optional), criticality (1-10, optional, see Criticality Rating above) |
## Summary
| Metric | Value |
| ------------------- | ----- |
| total_findings | count |
| critical | count |
| important | count |
| moderate | count |
| low | count |
| test_files_reviewed | count |
| source_files_mapped | count |
npx claudepluginhub thkt/dotclaude --plugin toolkitFetches up-to-date library and framework documentation from Context7 for questions on APIs, usage, and code examples (e.g., React, Next.js, Prisma). Returns concise summaries.
Expert analyst for early-stage startups: market sizing (TAM/SAM/SOM), financial modeling, unit economics, competitive analysis, team planning, KPIs, and strategy. Delegate proactively for business planning queries.
Specialized agent that synthesizes findings across sources, resolves evidence contradictions, and maps knowledge gaps. Assign for cross-source integration and gap analysis.