martinffx

Challenge an approach with critical thinking. Use when questioning assumptions, validating decisions, testing approach validity, or preventing automatic agreement.

Modern Python language features and typing patterns. Use when writing type hints, using generics, implementing pattern matching, working with async/await, or leveraging Python 3.10+ features.

Temporal workflow orchestration in Python. Use when designing workflows, implementing activities, handling retries, managing workflow state, or building durable distributed systems.

Python project tooling with uv, mise, ruff, basedpyright, and pytest. Use when setting up pyproject.toml, running builds, typechecking, configuring tests, linting, formatting, or managing Python environments.

REST API design patterns. Use when designing endpoints, error responses, pagination, versioning, or API structure. Framework-agnostic principles for building consistent, maintainable APIs.

Functional programming patterns for reliable TypeScript. Use when modeling state machines, discriminated unions, Result/Option types, branded types, or building type-safe domain models.

Stub-Driven TDD and layer boundary testing. Use when writing tests, deciding what to test, or testing at component boundaries.

Python monorepo architecture with uv workspaces, mise, and apps/packages pattern. Use when setting up project structure, configuring workspaces, managing dependencies across packages, or designing multi-app Python repositories.

Compact the current conversation into a handoff document for another agent to pick up.

Subagent dispatch patterns for implementation tasks. Use when spec-implement has multiple tasks to execute and subagents are available. Covers parallel dispatch for independent work, the two-stage review cycle (spec compliance then code quality), focused prompt construction, and integration of results. Trigger when executing plan tasks with subagent support, when facing 2+ independent problems, or

TypeScript testing patterns with Vitest and MSW. Use when writing unit tests, mocking APIs, creating typed mocks for dependency injection, or using snapshot testing.

Skill routing and workflow orchestration. Routes to correct spec skill based on task type. Establishes discipline and manages transitions between workflow phases. Use when starting any conversation or task to determine which spec skill applies.