Testing & Debugging Skills

Use when the user asks to "add authentication", "protect a route", "use auth hooks", "integrate Auth0", "add login/logout", "use AuthProvider", "verify JWT", or mentions @mbe/auth, OIDC, access tokens, or authentication in React or Fastify.

Seed non-breaking but detectable bugs (lint violations, dead links) to verify autonomous audit/lint loops catch and file issues. Scheduled to run weekly to test measurement machinery. Invoke with /chaos-agent or schedule via RemoteTrigger.

Batch-apply pnpm.overrides for CVE fixes in a single PR. Use when multiple Dependabot/security alerts need dependency overrides — collapses N identical workflows into one operation.

Harvest discovery-driven lessons from autonomous loops. Scans a session (or --days N of history) for 'CI/check failed → fix → passed' arcs and recurring tool-errors, then proposes entries for .claude/rules/gotchas.md (repo-specific) or your frontmatter-per-fact memory (cross-repo). Use after /implement-queue or /ship-loop runs, or invoke /gotcha-harvest. Complements /reflect, which is correction-driven and misses these.

Drain the ready-issue backlog with quality: claim a batch of independent issues, implement each in parallel TDD worktree subagents, then serially merge green PRs. Replaces ship-loop. Use when the user says 'work the queue', 'drain the backlog', 'implement the ready issues', or invokes /implement-queue (optionally via /loop).

Run the same lint + typecheck + architecture-audit checks CI runs, locally and in parallel. Catches workspace-package issues (missing deps, prop drift, lint rule violations) before pushing — the failures CI would surface in 5 minutes show up in 30 seconds. Use before opening or pushing to a PR.

Scaffold a Playwright E2E test in one of the apps that has a Playwright config, matching the existing test fixtures and auth…

Scaffold a new Fastify + Prisma backend service in the mattbutlerengineering monorepo. Creates the service directory, package.json, app bootstrap, Prisma schema, health route, tests, and updates Turborepo config.

Scaffold a new Fastify route in services/{reservations,users,agent} matching the house pattern — schema validation, auth, error envelope per ADR-002, SSE broadcast (if reservations),…

Daily optimization loop for the implement-queue workflow. Measures queue efficiency via the queueEfficiency sensor, appends a trend point, logs the run, and files de-duplicated ready issues on regression. Async eval is scheduled separately — never run synchronously here. Invoke with /optimize-implement-queue.

Check bundle size impact of current changes against size-limit baselines. Use when editing apps/ or packages/rialto source, before committing, or when user asks about bundle size.

Use when the user asks to "create a migration", "run prisma migrate", "deploy database changes", "baseline a database", "set up Prisma CI/CD", or mentions database schema deployment. Provides Prisma Migrate best practices for development and production.

Track continuous improvement loop performance. Queries GitHub for metrics (issues created/closed, PRs merged, CI health), logs trends, and suggests process improvements. Invoke with /progress-tracker.

Use when the user asks to "add an endpoint to reservations", "create a route in reservations service", "write tests for reservations", "test reservations service", "add a table endpoint", "work on reservations API", or mentions the reservations service, table management, or reservation functionality.

Detect when an AI-authored PR is reverted and trigger a Reflection session for RCA. Monitors revert commits, matches to AI PRs, and initiates analysis. Scheduled to run hourly. Invoke with /revert-rca-loop.

Use when building UI with the Rialto design system, importing from "rialto" or "@mattbutlerengineering/rialto", choosing components, applying design tokens, composing layouts, or authoring new Rialto components. Triggers on mentions of "Rialto", "component library", "design system", "UI component", or imports from rialto.

Query Sentry for production errors, filter by severity/frequency, deduplicate against existing GitHub issues, and create actionable issues for the ship-loop. Invoke with /sentry-triage.

Full cycle: audit site, check Dependabot alerts, fix issues, push, verify CI, deploy, close. Prioritizes Security > Availability > New features. Parallel dispatch for speed.

Pull a real-time token spend summary using ccusage. Shows daily totals, session breakdown, and block usage with cost, cache-read vs output vs cache-creation tokens, and per-model breakdown. Invoke: /token-report [daily|session|blocks].

Use when the user asks to "add an endpoint to users", "create a route in users service", "write tests for users", "test users service", "add auth to a route", "work on users API", or mentions the users service, Fastify routes, or user management functionality.