Routecraft

Changelog

All notable changes to RouteCraft.

v0.2.0 — February 2026

AI & MCP

  • New @routecraft/ai package -- MCP integration with full schema validation via Zod. Expose any capability as an MCP tool for Claude Desktop, Cursor, and other MCP clients.
  • MCP server support -- run your capabilities as an MCP server with a single CLI command.
  • MCP client support -- call external MCP servers from within a capability using the mcpPlugin.

Adapters & Operations

  • direct adapter validation -- improved validation and error messages for inter-capability communication.
  • aggregate operation -- default aggregator now flattens arrays and combines scalars automatically.
  • batch operation -- new ESLint rule (batch-before-from) enforces correct batch positioning at the route level.
  • pseudo adapter -- new adapter for stubbing sources and destinations in tests and local development.

Framework

  • Cross-instance identity -- supports multiple package copies and npx-based installs resolving to the same context identity.
  • Logging configuration -- enhanced logging setup with more control over levels and output format.

v0.1.1 — November 2025

Quality-of-life improvements.

  • Custom log messages -- adapters and operations now support custom log message overrides.
  • Fetch adapter -- automatically parses JSON responses, no manual parsing needed.
  • .env.local support -- environment variables in .env.local are loaded automatically alongside .env.
  • create-routecraft -- project scaffolding now supports example selection and template file configuration.
  • CodeSandbox -- added online playground link in the installation docs for zero-install experimentation.

v0.1.0 — October 2025

Initial release.

  • Fluent DSL -- craft().from().to() builder syntax for authoring capabilities.
  • Core operations -- transform, filter, enrich, aggregate, split, validate, tap, process, header, and more.
  • Built-in adapters -- simple, timer, direct, log, noop, fetch.
  • Backpressure -- simple and batch consumers with built-in backpressure support.
  • CraftContext -- route lifecycle management with hot reload in development.
  • Error handling -- structured RC error codes with Pino logging.
  • CLI -- craft run and craft watch commands.
  • create-routecraft -- project scaffolding tool.
  • ESLint plugin -- require-named-route rule out of the box.
  • Test utilities -- @routecraft/testing package with testContext and spy adapter.