Skills test-coverage-advisor
📦

test-coverage-advisor

v1.0.0 Content revision r1 Safe ⚙️ External commands

Improve Rust Test Coverage

Missing tests leave Rust error paths and edge cases unprotected. This skill reviews code and tests, then suggests targeted coverage improvements.

Supports: Claude Codex Code(CC)
🥈 81 Silver

Install with my Agent

Copy this request to your Agent. It includes the canonical Skill page and manifest.

Agent request
Review the Skillstore skill "test-coverage-advisor" from https://skillstore.io/skills/emillindfors-test-coverage-advisor.md and its manifest at https://skillstore.io/api/skills/emillindfors-test-coverage-advisor/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.

Your Agent should still show its plan and request any confirmation required by the security policy.

Agent-readable resources

Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.

Markdown detail GET /skills/emillindfors-test-coverage-advisor.md Signed manifest GET /api/skills/emillindfors-test-coverage-advisor/manifest Signed lockfile GET /api/skills/emillindfors-test-coverage-advisor/lockfile

Test it

Using "test-coverage-advisor". A validate_email function only has one success test.

Expected outcome:

Suggested coverage: empty input, missing at sign, missing domain, and a table of valid and invalid addresses.

Using "test-coverage-advisor". An async repository lookup has no failure tests.

Expected outcome:

Recommended tests: found user, missing user, repository error, and timeout or cancellation behavior if supported.

Using "test-coverage-advisor". A test module contains setup-heavy tests with no clear assertions.

Expected outcome:

Refactor guidance: split tests by behavior, keep one reason per test, and add explicit assertions for observable outcomes.

Security Audit

Safe
v4 • 7/6/2026 Open versioned report

The static command findings are false positives caused by Markdown code fences in Rust and bash examples, not executable code. The blocker findings are sample email addresses in a table-driven test example. I found no evidence of prompt injection, data exfiltration, unauthorized network use, or tool instructions beyond Read/Grep/Glob.

1
Files scanned
337
Lines analyzed
0
Review items
0
False positives ignored

Risk Factors

⚙️ External commands (25)
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No confirmed security findings were detected by the latest completed static and semantic audit. This does not prove the skill has no side effects.
Audited by: codex View Audit History →
Share & cite this report

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Open versioned report
Security Assessment

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https://skillstore.io/skills/emillindfors-test-coverage-advisor/audits/4?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_report

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Academic citations (APA · BibTeX · CFF)

APA citation

EmilLindfors. (2026). test-coverage-advisor security audit report (audit version 4) [Author version 1.0.0]. Skillstore. https://skillstore.io/skills/emillindfors-test-coverage-advisor/audits/4

BibTeX citation

@techreport{emillindfors-emillindfors-test-coverage-advisor-2026, author = {EmilLindfors}, title = {test-coverage-advisor security audit report (audit version 4)}, institution = {Skillstore}, year = {2026}, number = {4}, url = {https://skillstore.io/skills/emillindfors-test-coverage-advisor/audits/4}, note = {Author version 1.0.0} }

CITATION.cff

cff-version: 1.2.0 message: "If you use this Skill, cite its author and this versioned security audit report." title: "test-coverage-advisor security audit report (audit version 4)" version: "1.0.0" type: report authors: - name: "EmilLindfors" date-released: "2026-07-06" url: "https://skillstore.io/skills/emillindfors-test-coverage-advisor/audits/4" identifiers: - type: other value: "skillstore:emillindfors-test-coverage-advisor:audit:4" description: "Skillstore immutable audit report identifier"

Skillstore Score

Why this score Evidence Confidence: High
55
Architecture
100
Maintainability
87
Content
70
Community
91
Spec Compliance

What You Can Build

Add Tests for New Rust Code

Identify missing success, failure, and boundary tests before a feature is merged.

Review Pull Request Coverage

Check whether a change includes enough tests for error paths and edge cases.

Plan Regression Coverage

Turn bug reports or risky behavior into focused regression test ideas.

Try These Prompts

Find Basic Coverage Gaps 
Review this Rust function and suggest missing success, error, and edge case tests: [paste code].
Improve an Existing Test Module 
Review this Rust test module. Identify missing assertions, error paths, and opportunities for table-driven tests: [paste tests].
Design Coverage for Async Code 
Analyze this async Rust API and propose tests for success, failure, timeout, and not-found behavior: [paste code].
Create a Coverage Review Plan 
Assess this feature implementation and tests. Prioritize the highest-risk missing cases and explain why each test matters: [paste files or summary].

Best Practices

  • Share the smallest relevant function or test module so suggestions are specific.
  • Include expected error types and business rules when asking for coverage advice.
  • Ask for prioritized gaps when a feature has many possible edge cases.

Avoid

  • Using the skill as a substitute for running test and coverage tools.
  • Asking for broad coverage advice without showing code or behavior rules.
  • Accepting generated test ideas without checking domain correctness.

Frequently Asked Questions

Does this skill run coverage tools?
No. It suggests coverage gaps and tool choices, but it does not execute commands.
Which language is it designed for?
It is designed for Rust testing patterns, including Result handling, modules, and async tests.
Can it write full tests?
It can suggest test cases and example structure. Developers should adapt the tests to the project.
Does it detect every missing edge case?
No. It uses code context and common patterns, so domain-specific cases need user input.
Can it help with existing tests?
Yes. It reviews test modules for missing assertions, repeated cases, and weak organization.
Is it safe to use with private code?
Use normal confidentiality controls. The skill only requests reading code context through the host tool.

Developer Details

License

MIT

Author version

v1.0.0

Skillstore revision

r1

Repository

https://github.com/EmilLindfors/claude-marketplace/tree/main/plugins/rust-testing/skills/test-coverage-advisor

Ref

a06681402992ceae98ba04d54cfd4ab004862696

Maintenance freshness

7/18/2026

Usage

5 downloads · 226 views

File structure

📄 SKILL.md