Agent Claude Code needs its repo
Playwright, Cypress, and visual regression testing specialist. Use when writing E2E tests, setting up browser automation, or implementing visual regression testing. Trigger phrases: E2E, end-to-end, Playwright, Cypress, visual regression, browser test, screenshot test, Percy, Chromatic.
Agent Claude Code
Transactional email (Resend, SES, SendGrid), email templates (React Email, MJML), and deliverability specialist. Use when implementing email systems, designing templates, or troubleshooting deliverability. Trigger phrases: email, transactional, Resend, SES, SendGrid, SMTP, template, deliverability, SPF, DKIM, DMARC…
Agent Claude Code
Embedded systems, firmware, RTOS, microcontrollers (STM32, ESP32, Arduino), IoT, and bare-metal C/C++ specialist. Use when developing firmware, working with hardware peripherals, or building IoT devices. Trigger phrases: embedded, firmware, RTOS, microcontroller, Arduino, ESP32, STM32, IoT, bare-metal, I2C, SPI, UART…
Agent Claude Code
Kafka, RabbitMQ, SQS/SNS, event sourcing, CQRS, and message-driven architecture specialist. Use when designing event-driven systems, implementing pub/sub, or building streaming pipelines. Trigger phrases: Kafka, RabbitMQ, event sourcing, CQRS, message queue, pub/sub, event-driven, streaming, SQS, SNS, EventBridge.
Agent Claude Code
Flutter/Dart cross-platform development, Riverpod state management, and platform channels specialist. Use when building Flutter apps, implementing state management, or working with native platform features. Trigger phrases: Flutter, Dart, Riverpod, Bloc, widget, MaterialApp, GoRouter, platform channel, pub.dev, build…
Agent Claude Code
Expert game developer for Unity, Unreal Engine, and Godot game development.
Agent Claude Code
Go concurrency, error handling, stdlib patterns, Chi/Echo web frameworks specialist. Use when writing Go code, designing concurrent systems, or building Go web services. Trigger phrases: Go, Golang, goroutine, channel, Chi, Echo, stdlib, context, error handling, interface, module, go test.
Agent Claude Code
Expert graphic designer for digital and print design, color theory, typography, and visual identity.
Agent Claude Code
Expert GraphQL architect for API design, schema development, and performance optimization.
Agent Claude Code
Researches a single gray area decision and returns a structured comparison table with rationale. Spawned by discuss-phase advisor mode.
Agent Claude Code
Deeply analyzes codebase for a phase and returns structured assumptions with evidence. Spawned by discuss-phase assumptions mode.
Agent Claude Code
Explores codebase and writes structured analysis documents. Spawned by map-codebase with a focus area (tech, arch, quality, concerns). Writes documents directly to reduce orchestrator context load.
Agent Claude Code
Investigates bugs using scientific method, manages debug sessions, handles checkpoints. Spawned by /gsd:debug orchestrator.
Agent Claude Code
Executes GSD plans with atomic commits, deviation handling, checkpoint protocols, and state management. Spawned by execute-phase orchestrator or execute-plan command.
Agent Claude Code
Verifies cross-phase integration and E2E flows. Checks that phases connect properly and user workflows complete end-to-end.
Agent Claude Code
Fills Nyquist validation gaps by generating tests and verifying coverage for phase requirements.
Agent Claude Code
Researches how to implement a phase before planning. Produces RESEARCH.md consumed by gsd-planner. Spawned by /gsd:plan-phase orchestrator.
Agent Claude Code
Verifies plans will achieve phase goal before execution. Goal-backward analysis of plan quality. Spawned by /gsd:plan-phase orchestrator.
Agent Claude Code
Creates executable phase plans with task breakdown, dependency analysis, and goal-backward verification. Spawned by /gsd:plan-phase orchestrator.
Agent Claude Code
Researches domain ecosystem before roadmap creation. Produces files in .planning/research/ consumed during roadmap creation. Spawned by /gsd:new-project or /gsd:new-milestone orchestrators.
Agent Claude Code
Synthesizes research outputs from parallel researcher agents into SUMMARY.md. Spawned by /gsd:new-project after 4 researcher agents complete.
Agent Claude Code
Creates project roadmaps with phase breakdown, requirement mapping, success criteria derivation, and coverage validation. Spawned by /gsd:new-project orchestrator.
Agent Claude Code
Retroactive 6-pillar visual audit of implemented frontend code. Produces scored UI-REVIEW.md. Spawned by /gsd:ui-review orchestrator.
Agent Claude Code
Validates UI-SPEC.md design contracts against 6 quality dimensions. Produces BLOCK/FLAG/PASS verdicts. Spawned by /gsd:ui-phase orchestrator.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: