Defines 10 sequential validation gates: secret scanning, lint/test/build checks, blast radius analysis, dependency auditing, browser testing, cache management, regression checks, smoke tests. Use when running pre-deploy validation or CI checks, CI/CD pipelines, deployment pipeline validation, pre-merge checks, continuous integration, or pull request validation.

Generates test plans, writes unit/integration/E2E test files, identifies coverage gaps, flags common testing anti-patterns. Use when writing tests, creating test suites, planning test strategies, mocking dependencies, measuring code coverage, or test planning.

Provides model routing rules, validates delegation prerequisites, supplies cost tracking templates, defines dead-letter queue formats for Team Lead orchestration. Load when assigning tasks to agents, choosing model tiers, starting delegation session, running multi-agent workflow, delegating work, choosing which model to use, or assigning tasks.

Saves, restores session state including task progress, file changes, delegation history. Use when saving progress, resuming interrupted work, picking up where you left off, or checkpointing current work.

Implements technical SEO: meta tags, JSON-LD structured data, sitemaps, crawlability fixes. Use when adding schema markup, JSON-LD, robots.txt updates, canonical URLs, Open Graph tags, or improving crawlability.

Appends new entries to LESSONS-LEARNED.md via opencastle lesson CLI; searches past lessons for matching errors; proposes skill updates when retry patterns exceed thresholds. Use when consulting or updating LESSONS-LEARNED.md, after task failures, when capturing retrospective insights, or when a retry succeeds.

Security architecture: authentication, authorization, RLS policies, CSP, input validation, API security. Use when implementing auth flows, writing RLS policies, configuring CSP/headers, validating inputs, or auditing security. Trigger terms: RLS, CSP, Server Actions, Zod, auth flow

Enforces React-specific patterns: functional components with hooks, TypeScript prop interfaces, CSS Modules co-location, React Testing Library behavioral tests. Use when creating React components, writing custom hooks, structuring component folders, applying RTL test patterns, or wiring TypeScript prop types. Trigger terms: React, .tsx, component, hook, RTL, jsx, useState, useEffect, prop interface

Generates shared CSS variables, validates component naming conventions, creates layout pattern templates. Use when coordinating design system, theme, consistent styling, CSS variables, or component library across parallel agents.

Profiles, reduces frontend/backend costs: split bundles, optimize assets, apply caching, fix Core Web Vitals regressions. Use when profiling Lighthouse/CI regressions, reducing bundle size, or fixing high CLS/LCP/TTI metrics.

Runs 3 isolated reviewer sub-agents; consolidates PASS/BLOCK verdict by majority. Use when user requests independent review of code changes, pull requests, design documents, or release notes.

Coordinate multiple agents: parallel spawning, health monitoring, circuit breakers, escalation. Use for parallel agents, agent timeouts, fan-out tasks, multi-agent delegation.

Logs sessions, tracks activity, records delegation decisions, and stores review/dispute outcomes as NDJSON audit trails. Use when logging session activity, tracking work, recording decisions, building audit trails, capturing delegation history, or running pre-response verification checklists. Trigger terms: log, track activity, audit trail, session record, delegation log, NDJSON

Reviews mature LESSONS-LEARNED.md entries, rewrites them as permanent rules in skill/instruction files, archives graduated lessons. Use when graduating lessons into skills, promoting validated lessons, updating skills from past learnings, archiving mature lessons, codifying repeated patterns, or cleaning up a crowded LESSONS-LEARNED.md.

Defines branch naming conventions, PR template requirements, commit message format, discovered-issues escalation policy, task tracking conventions. Load when committing, pushing, or opening PRs.

Defines named visual aesthetic, selects typography pairings, builds CSS token systems, adds entrance animations for high-design-quality pages. Use when user asks to design landing page, style marketing site, create distinctive UI theme, pick fonts, or add CSS animations — specifically when visual polish, brand identity matter rather than generic component scaffolding.

Mandatory post-delegation gate: checks output completeness, verifies acceptance criteria compliance, flags regressions, produces PASS/FAIL verdict. Use when checking delegated work against acceptance criteria, running post-delegation gate, validating agent output before acceptance, verifying sub-agent completed its assignment, or running post-delegation QA check.

Scaffolds issue docs, ADRs, README outlines, changelog entries, roadmap updates, Mermaid architecture diagrams using project templates. Use when drafting ADR, writing changelog, updating roadmap after a feature ships, creating README for a new library, or diagramming a system flow.

Configures deployment pipelines, manages environment variables, schedules cron jobs, applies security headers, implements caching strategies. Use when working with Docker, Vercel, AWS, Dockerfile, nginx.conf, or platform deployment configs.

Resolves task dependencies, generates machine-actionable delegation specs, structures phased subtask plans for multi-agent work. Use when writing delegation specs, resolving task dependencies, building phased subtask plans for multi-agent work, assigning work to sub-agents, or partitioning a feature into parallelizable phases.