Use when writing tests, measuring coverage, or running characterization, performance, or PR-review QA. Comprehensive specialist combining DDD testing, characterization tests, performance profiling, and TRUST 5 quality-assurance validation.
SkillScore95Maintained
Automatic
◆QA & Test Engineering pack
Last verified 8/15/2026
What it changes
Passed 21 of 22 test cases with the skill, and 18 of 22 without it.
Without skill82%
With skill95%
Checks it passed that the model alone missed
Performs post-refactor quality validation using the TRUST 5 framework
Filters out findings with confidence scores below 80 prior to posting
Filters out PR review issues with a confidence score below 80 on a 0-100 scale
and 1 more in the full report
3 fixed18 passed either way1 still failing0 broke
Pass-rate lift
+14 pp
Tokens
+99%
Agent turns
0%
Response time
-10%
Model gemini-3.6-flashMeasured 8/15/2026v221 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 3
Prompt
Our PR review bot detected 20 possible issues, ranging from subtle style suggestions to severe bugs. The confidence scores range from 30 to 95. Which findings should be posted to GitHub?
What was checked, without and with the skill
Checked
Without skill
With skill
Filters out findings with confidence scores below 80 prior to posting
Missed
Passed
case-14 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md199 lines10 files
Development Workflow Specialist
Quick Reference
Unified development workflow combining DDD (domain-driven development) testing, debugging guidance, performance optimization, automated code review, and CI/CD quality gates. Emphasizes behavior preservation during refactoring through characterization tests.