Testing

Optimize title tags, meta descriptions, Open Graph, and Twitter cards for maximum click-through rate.

Plan and prepare a new paid-media campaign or cross-channel test before it can spend.

XML sitemap audit — find and fix the sitemap problems that quietly waste crawl budget and slow indexing.

Build and test nub during development.

Run a nub Rust build, clippy gate, test suite, or ad-hoc fixture script on an ephemeral Google Cloud spot VM instead of the dev Mac.

Add end-to-end and API tests for features that already work, following the project's existing test harness.

Build and distribute Expo development clients locally or via TestFlight for internal testing.

Product demo and release-notes videos with no screen recording.

Create grounded paid-media creative concepts, copy angles, refresh hypotheses, and measurable test briefs across advertising platforms.

Launch and monitor prime-rl evals — the `uv run eval` entrypoint, its config and CLI shorthands, run directory, resume, logs and metrics.

Extract structured specifications from electronic component datasheet PDFs — pinouts, electrical characteristics, peripherals, topology, and features.

EMC pre-compliance risk analysis for KiCad PCB designs — 18 check categories, 44 rule IDs covering ground planes, decoupling, I/O filtering, switching…

Show quality metrics for Bernstein runs - success rates per model, lint/test pass rates, completion time distributions.

Capture and review Agent Skill observations, and create, run, diagnose, or iteratively improve Skill evaluations (evals) with the skill-up CLI.

Build, test, and drive iOS apps in the Simulator with 30 token-efficient scripts.

Record browser interactions as video using Playwright.

A committed project-scope skill used by the agent-scan canary to verify that inspect detects skills under <project>/.claude/skills.

Security guidance and vulnerability review for codebases, APIs, services, CLI tools, libraries, and daemons.

Build, archive, export, and manage Xcode version/build numbers with asc, including portable iOS compilation and packaging.

Run evaluations on Agent Skills to measure their effectiveness.

Combined codebase health dashboard that scores a project across all four quality dimensions — PR quality, architecture, tech debt, and test quality — in a…

Full-sweep mode: runs a unified analysis across all quality dimensions — code decay, architecture, tech debt, and test quality — then applies fixes directly…

Test quality review drawing on twelve classic engineering books — with primary focus on xUnit Test Patterns, The Art of Unit Testing, How Google Tests…

Use when defining ambiguous or high-complexity new features, product behavior, UI/component design, architecture choices, contract changes, or when…