code-generation

TypeScript patterns, type system usage, module organization, and advanced type utilities for production TS applications.

Pythonic patterns, idioms, and best practices for building robust Python applications.

Maintain TASKS.md with task state across sessions. Use when starting any feature, tracking work in progress, updating task status, or reviewing what's blocked. Ensures nothing falls through the cracks.

Load when writing Angular components, directives, services, or pipes; using Angular 17+ standalone components; implementing signals (signal(), computed(), effect()); configuring OnPush change detection; using the inject() function instead of constructor DI; building reactive…

Load when designing or reviewing REST endpoints (@GetMapping/@PostMapping/@PutMapping/ @PatchMapping/@DeleteMapping), HTTP status codes, URL resource naming, API versioning strategies (/v1/, Accept-Version header), cursor-based or offset pagination, RFC 7807 ProblemDetail error…

Load when using /fleet for parallel agents, enabling autopilot mode, running multi-step tasks autonomously, orchestrating independent subtasks in parallel, or when asked "how do I run multiple agents in parallel", "how do I use autopilot", "how do I run this without approving…

Audits Copilot CLI context window consumption across agents, skills, MCP servers, and rules. Identifies bloat, redundant components, and produces prioritized token-savings recommendations.

Instinct-based learning system with project scoping. Creates atomic instincts with confidence scoring and evolves them into skills, commands, or agents. v2 adds project-scoped instincts to prevent cross-project contamination. Use when tracking a heuristic specific to one…

Load when writing Kubernetes Deployment/Service/Ingress manifests, configuring liveness, readiness, and startup probes for Spring Boot Actuator (/actuator/health/liveness, /actuator/health/readiness), planning blue-green or canary deployments, setting HPA…

Load when building Flutter apps with Clean Architecture, implementing BLoC pattern (flutter_bloc, Cubit, Bloc), state management with Riverpod (StateNotifierProvider, AsyncNotifierProvider), navigation with GoRouter, HTTP calls with Dio and interceptors, local persistence with…

Load when designing frontend architecture for any framework, separating presentation from business logic (smart/dumb component split), designing state management strategy, integrating with a REST or GraphQL API, implementing authentication flow (token storage, refresh, logout),…

Load when writing Go code, designing Go packages, handling errors in Go, using goroutines or channels, writing Go interfaces, implementing Go testing, using go.mod, or when asked "how do I structure this in Go", "what's the Go way to handle errors", "should I use goroutines…

Load when navigating a Java codebase with more than ~50 classes, when file reads are causing context overflow, or when exploration is slow and unfocused. Provides the grep-before-read rule, 3-layer progressive expansion strategy, stop conditions, and token budget management to…

Load when writing @Entity or @Repository classes, debugging LazyInitializationException or could-not-initialize-proxy errors, solving N+1 query problems, using @EntityGraph, @Query with JPQL, FetchType.LAZY/EAGER, @OneToMany/@ManyToOne/@ManyToMany, Pageable/Page/Slice…

Load when writing @KafkaListener consumers, configuring KafkaTemplate producers, implementing the outbox pattern with @TransactionalEventListener, designing dead-letter topics (DLT), using Schema Registry with Avro serialization, debugging consumer group lag, implementing…

Load when adding @Timed, @Counted, or MeterRegistry metrics, configuring Micrometer with Prometheus, setting up OpenTelemetry or Spring Boot distributed tracing (traceId/spanId in MDC), writing custom HealthIndicator or HealthContributor, configuring Actuator endpoints…

Load when writing Python code, designing FastAPI or Django REST APIs, using Pydantic models, working with async Python (asyncio, httpx), writing pytest tests, configuring virtual environments, using SQLAlchemy ORM, or when asked "how do I structure this Python service", "should…

Load when adding @CircuitBreaker, @Retry, @Bulkhead, @RateLimiter, or @TimeLimiter from Resilience4j, configuring WebClient or RestClient with retry operators, writing fallback methods, handling CircuitBreakerOpenException or BulkheadFullException, configuring resilience4j in…

Load before implementing any new Java class, Spring @Service, @Component, or utility method. Prevents duplicating Spring Boot auto-configurations, existing business logic, or library capabilities. Apply the grep-before-write rule: search the codebase for existing implementations…

Load when structuring Spring Boot packages (Controller/Service/Repository/Domain), writing @Service use-case classes, configuring @Async thread pools, applying @Cacheable/@CacheEvict with Redis, writing @RestControllerAdvice exception handlers, defining @Transactional…

Load when a session is running long (context window approaching 50%), when the conversation is cycling through the same problems without progress (decision fatigue or circular reasoning), before switching to a new major task within the same session, or when asked to "summarize…

再現可能な証拠で失敗を再現し、比較・切り分け・最小修正の検証まで進める。Use when: リグレッション調査、正常系と異常系の比較、変更前後のデバッグ痕跡を残したいとき。

セッションや PR レビュー後のふりかえりを、KPT や YWT などの型で進める。Use when: 作業の学びを整理したいとき、改善アクションを決めたいとき、ふりかえり結果を蓄積したいとき。

Conventional Commits と原子的コミットで、学習可能で安全な履歴を作る。Use when: チームでコミット形式を揃えたいとき、「コミットして」を atomic commit の依頼として扱いたいとき、変更を意図単位で分けたいとき。

ローカルディレクトリを git 初期化し、GitHub リポジトリとして公開する。Use when: まだ git 管理されていないプロジェクトを GitHub に載せたいとき、新規プロジェクトをローカルから公開したいとき。