Agent skills for Grok Build

Use when implementing any feature or bugfix, before writing implementation code

Automated E2E testing with Playwright including the auto-fix loop — generate test cases from the UI, run them, fix failures and re-run…

Detect missing test coverage and generate test suggestions.

Analyzes application logs: classifies errors, checks log quality, maps stack traces to source.

Agent skill for test-long-runner - invoke with $agent-test-long-runner

Skill for comprehensive mechanical test plan development and execution support

Test a playable browser game end to end with deterministic fixtures and real browser evidence.

Standardizes and scaffolds experimental test, hardware measurement, and scientific simulation projects with unified run artifact structures.

Audits existing tests in any language using formal, research-backed test smell names and the testsmells.org 19-smell academic taxonomy.

Use when a Godot/.NET task needs a Layer 4 overlay validation plan for a feature, bug fix, refactor, migration, or UI change, and the…

Audit test suite health — find flaky tests, slow tests, coverage gaps, and testing anti-patterns.

Launch and test T3 Code Mobile on an iOS Simulator or Android Emulator against disposable local T3 environments, including Metro and…

Guide for testing Codex TUI interactively

Generate AscendC testcases that hit intended implementation semantics.

Tests Android inter-process communication (IPC) through intents for

Tests API authentication mechanisms for weaknesses including broken

Tests REST and GraphQL APIs for Broken Object Level Authorization (BOLA/IDOR,

Systematically assesses REST, GraphQL, and gRPC API endpoints against the OWASP

Use when testing async code with Swift Testing.

Unit testing, integration testing, and test-driven development principles.

How to write tests, when to use each type of test, and how to run them.