Agent
Autonomous developer subagent. Implements exactly ONE user story from a PRD. Use for parallel, independent coding tasks. Each ralph instance owns specific files and does not touch anything else. Returns a RALPHDONE signal when complete. Does NOT commit or modify the PRD.
Agent
Rapid prototyper that ships a working version fast for validation. Prioritizes speed and learning over perfection. Use when you need a quick proof-of-concept, MVP feature, or validation prototype. Triggered by: 'prototype', 'MVP', 'quick version', 'validate fast', 'proof of concept', 'ship fast'.
Agent
Investigates a feature request from multiple angles: technical feasibility, UX/product considerations, risks, edge cases, and existing codebase patterns. Use at the start of a feature to enrich the vision before the architect creates the PRD. Runs fast in parallel with other researcher instances.
Agent
Security engineer for auditing code, identifying vulnerabilities, threat modeling, and hardening applications. Use for security reviews, penetration testing analysis, dependency audits, and implementing security controls. Triggered by: 'security audit', 'vulnerability', 'pentest', 'harden', 'OWASP', 'auth security'.
Agent
SEO specialist for keyword research, on-page optimization, technical SEO audits, and content strategy. Use for improving search visibility, analyzing rankings, and implementing SEO recommendations. Triggered by: 'SEO', 'keyword research', 'rank higher', 'meta tags', 'search visibility', 'SEO audit'.
Agent
Software architect for system design, technical decision-making, API design, and architecture documentation. Use when you need high-level design before implementation, or to evaluate technical approaches. Triggered by: 'design the system', 'architecture review', 'technical design', 'API design', 'system diagram'.
Agent
Site Reliability Engineer for monitoring setup, alerting, incident response, performance optimization, and reliability improvements. Use for uptime issues, performance bottlenecks, and observability. Triggered by: 'monitoring', 'alerting', 'incident', 'reliability', 'performance', 'SLA', 'observability'.
Agent
Board member: Technical Lead. Evaluates technical feasibility, stack decisions, scalability bottlenecks, build vs. buy decisions, and integration complexity. Used by the visionary skill during the Board of Directors phase.
Agent
Mobile QA specialist for Expo/React Native apps. Validates the app works on simulator and device using: Expo Doctor preflight, Jest + RNTL integration tests, and Maestro E2E YAML flows mapped to USER-JOURNEY.md. Does NOT use Stagehand or Playwright (browser-only). E2E runs via EAS nightly. Use after ralph-mobile…
Agent
QA specialist that PROVES the app works by actually running it with playwright-cli. Opens a real browser, navigates, clicks, fills forms, takes screenshots, checks console errors. Uses the globally installed playwright-cli — no setup needed. NEVER skips UI testing. Use after ralph implements a feature. Triggered by…
Agent
Use this agent when you need to design, create, or improve UI/UX for any feature or component in the project. This includes creating or updating the Semantic Design System, generating UI designs for web or mobile, implementing components with proper design patterns, or reviewing existing UI for improvements. This…
Agent
Maps all user flows for a product with extreme clarity — acquisition, auth, onboarding, core usage, payments, support, churn — for every persona. Produces Mermaid flowcharts and a USER-JOURNEY.md that becomes the north star: if the system doesn't fulfill this journey, it's incomplete. Use after a vision/epic is…
Agent
Board member: User Representative. Advocates for the end user — maps jobs-to-be-done, pain points, delight moments, and onboarding friction. Used by the visionary skill during the Board of Directors phase.
Agent
Strategic vision decomposition. Convenes a Board of Directors agent team to analyze a business vision from all angles (business, marketing, UX, risk, tech, compliance), then produces an EPIC document with bounded domains, integration contracts, and a prioritized PRD roadmap. Triggers user-journey mapping. Use when the…
Skill Claude CodeCodex
The Always On Memory skill maintains persistent, structured documentation throughout architect and orchestrator execution. It creates five key files that capture context, preferences, and actions in real-time.
Skill Claude CodeCodex
Expert data analyst transforming raw data into actionable business insights. Creates dashboards, performs statistical analysis, tracks KPIs, and provides strategic decision support through data visualization and reporting. Transforms raw data into the insights that drive your next decision. Activar cuando se necesite…
Skill Claude CodeCodex
Reverse-lookup glossary that turns a vague description of a web animation or motion effect into its exact term ("the bouncy thing when a popover opens" → Pop in; "the iOS rubber-band scroll" → Rubber-banding). Use when the user asks "what's it called when…", or describes a motion effect without knowing its name and…
Skill Claude CodeCodex
Expert API testing specialist focused on comprehensive API validation, performance testing, and quality assurance across all systems and third-party integrations. Breaks your API before your users do. Activar cuando se necesite un API Tester en el equipo o pipeline.
Skill Claude CodeCodex
Expert app store marketing specialist focused on App Store Optimization (ASO), conversion rate optimization, and app discoverability. Gets your app found, downloaded, and loved in the store. Activar cuando se necesite un App Store Optimizer en el equipo o pipeline.
Skill Claude CodeCodex
Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading)…
Skill Claude CodeCodex
System Architect that creates parallelizable PRDs with junior-proof technical specs. Use when planning features, designing implementations, or when the user says 'plan', 'architect', 'design', or 'PRD'. Outputs PRDs organized in Priority groups where tasks within each group can be executed in parallel by independent…
Skill Claude CodeCodex
Generate high-converting App Store screenshots by analyzing your app's codebase, discovering core benefits, and creating ASO-optimized screenshot images using Marcus (KIE API / Nano Banana 2). Triggers on "app store screenshots", "aso screenshots", "generate screenshots", "app store marketing", "aso-marcus".
Skill Claude CodeCodex
Self-improving skill optimizer. Runs overnight experiments to improve any skill using binary evals and a Karpathy-style research loop. Generates variants of a skill, measures pass rate against deterministic test cases, commits improvements, discards failures. Use for: improving ralph, tester, architect, or any skill…
Skill Claude CodeCodex
Expert brand strategist and guardian specializing in brand identity development, consistency maintenance, and strategic brand positioning. Your brand's fiercest protector and most passionate advocate. Activar cuando se necesite un Brand Guardian en el equipo o pipeline.