API clients need consistent auth, caching, validation, and error handling. This skill guides TanStack Query, Axios, JWT interceptors, Zod parsing, and offline behavior.

SwiftUI projects can accumulate state, layout, accessibility, and performance problems. This skill provides focused review guidance and optional Instruments trace analysis to identify practical improvements.

Swift concurrency diagnostics and migration choices can be difficult to interpret. This skill provides targeted guidance for isolation, Sendable, tasks, testing, and Swift 6 refactoring.

Manual browser testing is slow and often misses regressions across forms, devices, and network states. This skill helps Claude, Codex, and Claude Code create practical Playwright tests for real web workflows.

Complex Git maintenance can make history changes and conflict resolution difficult. This skill provides structured guidance, recovery steps, and an optional local helper for common advanced workflows.

Complex failures can hide their root cause behind noisy stack traces and secondary symptoms. Error Detective organizes evidence, tests hypotheses, and verifies targeted fixes.

Inconsistent API contracts create integration errors and costly migrations. This skill guides REST, GraphQL, OpenAPI, authentication, versioning, validation, and documentation decisions.

WordPress repositories often hide their project type, tooling, and test setup across many files. This skill scans local files and produces a consistent triage report.

WordPress plugin changes can introduce lifecycle, data, and security defects. This skill provides a structured workflow for implementation, review, testing, and release preparation.

WordPress testing often requires slow local infrastructure and repeated setup. This skill guides disposable environments, reproducible blueprints, snapshots, version testing, and Xdebug workflows.

Interactive WordPress blocks can fail during hydration, server rendering, or directive wiring. This skill guides implementation and debugging with current Interactivity API patterns.

Block theme changes often fail because settings, templates, and editor overrides interact. This skill guides theme.json, templates, patterns, style variations, and troubleshooting.

WordPress block changes can break registration, saved content, or editor behavior. This skill guides implementation, migration, debugging, and verification for Gutenberg blocks.

WordPress abilities can fail because of registration order, metadata, permissions, or REST configuration. This skill provides focused implementation and troubleshooting guidance.

WordPress repositories can mix plugins, themes, blocks, and site code. This skill classifies the project and guides Claude or Codex toward the correct workflow.

Formatting and lint errors slow reviews and block quality gates. This skill applies Black, isort, and Ruff fixes, then verifies results.

Coverage percentages alone do not show which missing tests matter most. This skill turns Python coverage data into prioritized gaps and targeted pytest recommendations.

Inconsistent test coverage allows regressions to reach users. This skill structures unit, integration, and end-to-end testing with Vitest, Playwright, coverage targets, and CI guidance.

Next.js applications can become slow through large bundles, weak caching, and unoptimized media. This skill guides Claude, Codex, and Claude Code through focused performance improvements for production apps.

Large repositories hide architecture, dependency, and quality risks. This skill produces a structured map, focused checks, and prioritized recommendations.