@effect/ai-anthropic@4.0.0

Effect-TS/effect@effect/ai-anthropic@4.0.0Oct 1, 2026by effect-bot

Upgrading?

AI Summary

Updates the Anthropic provider package to v4.0.0, aligning it with the new Effect monorepo structure and integrating the new AI module features such as EmbeddingModel and DecisionModel.

Key Highlights

  • Updated to Effect v4.0.0
  • Supports Anthropic, OpenAI, OpenAI-compatible APIs, and OpenRouter providers
  • MCP server protocol support updated to latest versions (2024-11-05 to 2026-07-28)
  • Includes EmbeddingModel and DecisionModel classification and rating APIs

New Features

  • EmbeddingModel and DecisionModel classification and rating APIs
  • Dynamic tools and tool approvals
  • MCP server support for resource subscriptions and typed tool output

Full Release Notes

### Patch Changes

- [#8633](https://github.com/Effect-TS/effect/pull/8633) [`2c552f2`](https://github.com/Effect-TS/effect/commit/2c552f220e09dd63d4a777db6cd20b9a13e732f4) Thanks @IMax153! - Effect 4.0 is the first stable release of Effect v4. It replaces the 4.0.0 beta and release-candidate series, whose per-release notes remain below under the `4.0.0-beta.*` and `4.0.0-rc.*` headings. To upgrade from Effect 3, follow the [migration guide](https://github.com/Effect-TS/effect/blob/main/MIGRATION.md).
  
  **Packaging and versioning**
  
  - All Effect packages share one version number and are released together. Use the same version of `effect` and every `@effect/*` package.
  - `@effect/platform`, `@effect/rpc`, `@effect/cluster`, `@effect/cli`, `@effect/ai`, `@effect/sql`, `@effect/workflow`, `@effect/experimental` and similar packages are merged into `effect`. Separate packages remain only for platforms (`@effect/platform-*`), SQL drivers (`@effect/sql-*`), AI providers (`@effect/ai-*`), framework bindings (`@effect/atom-*`), OpenTelemetry, Vitest and tooling.
  - Modules such as `effect/http`, `effect/http-api`, `effect/rpc`, `effect/cluster`, `effect/workflow`, `effect/ai`, `effect/cli`, `effect/sql` and `effect/schema` import from `effect/<area>`. APIs tagged `@stability unstable` may have breaking changes in minor releases. APIs without a stability tag follow semver.
  - APIs that expose a third-party dependency are tagged `@stability unstable`, because that dependency's releases can change them. This covers `NodeRedis`, `DenoRedis`, `BunRedis`, `@effect/platform-node/Undici` and the undici dispatcher APIs, the `ws` options and re-exports in the platform packages, driver-specific options and clients in `@effect/sql-clickhouse`, `@effect/sql-d1`, `@effect/sql-libsql`, `@effect/sql-mssql`, `@effect/sql-mysql2`, `@effect/sql-pglite` and `@effect/sql-sqlite-do`, the provider clients, models and generated schemas in the `@effect/ai-*` packages, `@effect/opentelemetry`, and the `vitest` re-export in `@effect/vitest`.
  - `effect` has no runtime dependencies.
  - New packages in v4: `@effect/platform-deno`, `@effect/sql-pglite`, `@effect/ai-openai-compat`, `@effect/ai-typesafe`, `@effect/atom-react`, `@effect/atom-solid`, `@effect/atom-vue`, `@effect/openapi-generator` and `@effect/doctest`. `@effect/docgen` now lives in this repository.
  
  **Core**
  
  - The fiber runtime was rewritten for lower memory use and faster execution, with smaller bundles and better tree-shaking.
  - Services are defined with `Context.Service`, `FiberRef` is replaced by `Context.Reference`, `Cause` has a flat structure, and many combinators were renamed. See the migration guide for the full list.
  - Software transactional memory is built into `Effect.tx`, with `TxRef`, `TxQueue`, `TxHashMap`, `TxPubSub`, `TxSemaphore` and related `Tx*` data types.
  - `Clock` separates wall-clock time from monotonic time.
  - New modules include `Semaphore`, `Latch`, `LayerRef`, `ErrorReporter`, `ByteSize`, `Newtype` and `Crypto`. `Arbitrary` is now a native property-based testing module and no longer depends on fast-check.
  
  **Schema**
  
  - Schema v4 is a new implementation with faster parsing, class-based schemas, `make` constructors on every schema, and effectful decoding with services.
  - `SchemaRepresentation` powers JSON Schema (Draft-04, Draft-07, 2020-12 and OpenAPI 3.0/3.1) import and export, TypeScript code generation, and AI structured output.
  - `SchemaBinary` provides a compact binary codec and is the default wire format for cluster transports.
  - Optional JIT and AOT schema compilers are available as experimental modules.
  
  **Platform, HTTP and RPC**
  
  - `HttpApi` supports typed response headers, streaming and SSE responses, the HTTP `QUERY` method, `HttpApiTest` for in-memory testing, and much faster type checking for large APIs.
  - The HTTP modules add static file serving, response compression, rate-limited clients and graceful server shutdown.
  - `Socket` has a pull-based reader with backpressure and STARTTLS support. Network addresses are modeled by `effect/net`.
  - RPC serialization is schema-aware and supports server-originated requests and notifications.
  - `@effect/platform-deno` adds full Deno support. The Node, Bun, Deno and browser packages all provide the platform `Crypto` service, and the browser package adds IndexedDB support.
  
  **Cluster and Workflow**
  
  - Workflows can be declared with class syntax, and `DurableQueue` and an in-memory `WorkflowEngine` are available.
  - Runner memory can be bounded with `ShardingConfig` limits. Shutdown, entity movement and persisted replies are more reliable.
  
  **SQL**
  
  - `@effect/sql-pg` uses a built-in PostgreSQL client with pipelining, prepared statements and binary codecs, and no longer depends on `pg`.
  - `@effect/sql-sqlite-node` uses Node's built-in `node:sqlite` and requires Node 22.16 or newer.
  - `SqlError` exposes structured reasons such as `UniqueViolation`.
  
  **AI**
  
  - `effect/ai` adds `EmbeddingModel`, the `DecisionModel` classification and rating API, dynamic tools and tool approvals.
  - The MCP server supports protocol versions 2024-11-05 through 2026-07-28, including elicitation, sampling with tools, resource subscriptions and typed tool output.
  - Provider packages cover Anthropic, OpenAI, OpenAI-compatible APIs and OpenRouter.
  
  **CLI, Atom, observability and testing**
  
  - `effect/cli` adds global flags, command aliases and examples, an interactive wizard mode, and shell completions for Bash, Zsh and Fish.
  - `effect/reactivity` and the `@effect/atom-*` bindings add SSR hydration, stale-while-revalidate atoms and serializable RPC and HttpApi queries.
  - The OTLP exporters can be configured with standard OpenTelemetry environment variables, and `@effect/opentelemetry` aligns logs and spans with the OpenTelemetry specification.
  - `@effect/vitest` runs property tests with the native `Arbitrary` module and supports Vitest fixtures.
  
  **Requirements**
  
  - TypeScript 5.9 or newer. TypeScript 7 is recommended.
  - `@effect/vitest` and `@effect/doctest` require Vitest 5.
  - `@effect/atom-react` requires React 19.
  - `@effect/platform-deno` requires Deno 2.8.3 or newer.
- Updated dependencies [[`cbfc7b4`](https://github.com/Effect-TS/effect/commit/cbfc7b422046111c439a69ecbce7fc4f4899789d), [`5a81a6f`](https://github.com/Effect-TS/effect/commit/5a81a6f47521123a4075c6c221fb888d109778af), [`68b6394`](https://github.com/Effect-TS/effect/commit/68b639473ff211b654b49b7b82183cafd225f4a3), [`5250ca6`](https://github.com/Effect-TS/effect/commit/5250ca63c6f15152b4cdd36ef78b32ab06a0075e), [`5f9c9d1`](https://github.com/Effect-TS/effect/commit/5f9c9d17c1a2d18e3217b251d28de0015bba02fd), [`3278821`](https://github.com/Effect-TS/effect/commit/3278821a6490f7f76b30217115e921e1d3dc7f34), [`83429b4`](https://github.com/Effect-TS/effect/commit/83429b42023e79c29137381dc210a57bc0137ade), [`0af6d0c`](https://github.com/Effect-TS/effect/commit/0af6d0c8ceaf08656f76bba41e5965bbf9a76bac), [`927e01e`](https://github.com/Effect-TS/effect/commit/927e01e00579c14d446e15e077775e973d75f9a1), [`10d8524`](https://github.com/Effect-TS/effect/commit/10d8524dc40fd06075f6a70f88d3a0cbd3477178), [`35ac25a`](https://github.com/Effect-TS/effect/commit/35ac25a80bec4977a082af57a618d6a02bb41e25), [`29e0aa7`](https://github.com/Effect-TS/effect/commit/29e0aa7dcc7735e207a687ba0f6a7ddebfe0996e), [`8783536`](https://github.com/Effect-TS/effect/commit/878353689f69b555ad64f9dc14d4c66fd547360d), [`df77fff`](https://github.com/Effect-TS/effect/commit/df77fff9396fe31de72d1947ecb5b74f8cee89e1), [`ef7d77f`](https://github.com/Effect-TS/effect/commit/ef7d77f382dcb2a4f7648211ed6d674984a47c36), [`035e369`](https://github.com/Effect-TS/effect/commit/035e369b3a30bcd840a7a78ccfb94d251bf931b7), [`f72790c`](https://github.com/Effect-TS/effect/commit/f72790c618260bdfbf7a4e14d10abc2341d21e56), [`aa19472`](https://github.com/Effect-TS/effect/commit/aa1947284cee5cec68d08df9c5b41fae8fe1aa8c), [`988c467`](https://github.com/Effect-TS/effect/commit/988c467afa90449b1d441c2db645eaec236763ac), [`735b77b`](https://github.com/Effect-TS/effect/commit/735b77b65ca909ca6e41915f0d1366531c32142a), [`e5f7d12`](https://github.com/Effect-TS/effect/commit/e5f7d12af9abef188f7dc39b0207af1801b03ffd), [`2c552f2`](https://github.com/Effect-TS/effect/commit/2c552f220e09dd63d4a777db6cd20b9a13e732f4)]:
  - effect@4.0.0

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