fix
Polymorphic iterative repair loop — accept a verifier failure, structured findings (review/resolve/triage-issue), or a bug description; modify→verify→keep on…
Skills
Find an Agent Skill for your task. Read the guide and copy the install command.
Updated 11-04 00:13
Testing & quality
13,109 results
qa
Conversational QA mode — user reports bugs in plain language, agent clarifies minimally, files GitHub issues that survive refactors. Trigger on "QA", "QA…
resolve
Resolve code review comments by verifying validity, then proposing multiple architectural solutions (not naive fixes) for confirmed issues. Use when addressing…
test-driven
Test-Driven Development (TDD) across any supported language. Use when implementing features or fixes with TDD methodology, writing tests before code, or…
tests-adversarial
Write adversarial tests that intentionally stress failure paths. Use when hardening error handling, stress-testing assumptions, validating boundary behavior,…
android-device-matrix
Tests an Android app across screen sizes, densities, orientations, font scales and dark mode, and checks it degrades gracefully when a permission, radio or…
ab-test-analysis
Analyze A/B test results with statistical significance, sample size validation, confidence intervals, and ship/extend/stop recommendations
benchmark
Performance regression detection. Captures TTFB, FCP, LCP, bundle sizes, request counts. Regression thresholds: timing >50% or >500ms. Baseline comparison, trend tracking, budget compliance scorecard.
browse
Headless Chromium CLI for QA testing and site dogfooding. 100-200ms per command after startup. Persistent state with cookies, tabs, sessions. Snapshot system with element refs. Navigate, interact, verify page state, take screenshots, check responsive layouts, test forms, handle dialogs.
gate-check
Quality gate validation
investigate
Systematic root-cause debugging. Iron Law: no fixes without root cause investigation first. Four phases: Root Cause Investigation, Pattern Analysis (6 known patterns), Hypothesis Testing (3-strike rule), Implementation. Structured debug report output.
perf-benchmarker
Run sequential performance benchmarks with strict duration rules and baseline management
playwright-expert
Writes E2E tests with Playwright including test scripts, page objects, test fixtures, reporters, CI integration, API mocking, and visual regression testing.
qa-only
Report-only QA — same browser-based testing as qa but documents bugs with screenshots and repro steps only, no code changes. Health score formula weighted across 8 categories. Outputs to .gstack/qa-reports/.
review
Pre-landing PR review with two-pass checklist. Pass 1 critical: SQL safety, race conditions, LLM trust boundaries, enum completeness. Pass 2 informational: side effects, magic numbers, dead code, test gaps. Adversarial review auto-scaled by diff size. Scope drift detection.
setup-browser-cookies
Import cookies from your real browser (Comet, Chrome, Arc, Brave, Edge) into the headless browse session for testing authenticated pages. Interactive picker UI or direct domain import. macOS Keychain integration.
test-master
Generates test files, creates mocking strategies, analyzes code coverage, designs test architectures, and produces test plans across functional, performance, and security testing.
agent-browser
Drive a real browser to inspect or interact with a web page or app — navigate, take screenshots, read console and network, fill simple forms — for verification…
qa-acceptance
Produce QA acceptance criteria and a manual validation plan for a feature change — golden path, edge cases, error states, performance limits, and explicit…
mobile-demo-record
Run apps/mobile on the iOS simulator against the local stack, drive it with Maestro, and capture clean screen recordings. Use when asked to record, film,…
mobile-sim-verification
Verify apps/mobile behavior end-to-end on the iOS simulator against a local API and relay, with Maestro for input and a stand-in host instead of a second…
nvm-misc
Provide nvm overview, output color customization, tests, and automation examples like Ansible. Use when users ask for an nvm intro, color settings, running nvm…
speckit-checklist
Generate a requirements-quality checklist ('unit tests for English') that validates completeness, clarity, consistency, and measurability of spec/plan/tasks…
chrome-devtools
Uses Chrome DevTools via MCP for efficient debugging, troubleshooting and browser automation. Use when debugging web pages, automating browser interactions,…