package chatoyant

Changelog

All notable changes to this project are documented here. The format follows Keep a Changelog, and the project adheres to Semantic Versioning.

0.12.1 — 2026-07-03

Fixed

• opam lower-bounds: constrain the TLS/crypto/HTTP stack (tls, tls-eio, x509, ca-certs, mirage-crypto-rng to >= 1.0.0; cohttp-eio and http to >= 6.0.0). The native runtime uses the result-returning Tls.Config.client introduced in tls 1.0, so pre-1.0 versions no longer resolve.
• opam sandbox: the Eio HTTP transport test (test_eio) moves from @runtest to a dedicated @integration alias. It binds a local socket, which the network-less opam sandbox rejects (bind: EPERM); CI and make test still run it via dune build @integration.

0.12.0 — 2026-07-02

Changed

• Rewrote Chatoyant as an OCaml-first SDK. The library now exposes a native Eio API with result-returning calls and .mli contracts. The npm package is generated from the OCaml implementation with Melange and bundled with esbuild, and has no runtime npm dependencies.
• JavaScript imports move to the package root. The former subpath entry points (chatoyant/core, chatoyant/schema, chatoyant/tokens, chatoyant/providers/*) are collapsed into root exports and namespace objects. This is a breaking change for JavaScript consumers.
• Provider errors are consolidated into ProviderError. The per-provider error classes and guards (OpenAIError/isOpenAIError, AnthropicError, XAIError, LocalError, ...) are gone; catch ProviderError and branch on its provider field instead.
• Low-level helper exports are removed. The preset lookup tables and helpers (MODEL_PRESETS, CREATIVITY_PRESETS, REASONING_PRESETS and friends) are no longer exported — the model: "fast", creativity, and reasoning options still resolve exactly as before. The per-provider SSE/accumulator toolkit (parseSSEStream, createAccumulator, ...), chatStreamToWritable/messageStreamToWritable, and buildHeaders/buildUrl are internal now; use the chatStream* / messageStream* namespace methods.
• The TypeScript type vocabulary is rebuilt. Provider wire types and per-call option interfaces from the old package are replaced by a smaller set of provider-neutral types (GenerationOptions, GenerationResult, Usage, ProviderId, schema/JSON Schema types). Model name unions widen to string. Some names change: MessageRole → Role, GenerateOptions → GenerationOptions, SchemaConstructor → SchemaClass, InferSchema → InferSchemaInstance/InferSchemaInput.

Added

• Native OCaml provider clients for OpenAI, Anthropic, xAI, OpenRouter, and local OpenAI-compatible servers.
• A standalone Draft 2020-12 JSON Schema parser and validator with OpenAI strict projection and typed OCaml codec generation.
• A chatoyant.ppx providing the module%tool syntax and [@@deriving chatoyant] codecs.

0.11.1 — 2026-04-15

• Final release of the TypeScript implementation. Earlier changelog history is available in the Git log prior to the OCaml port.