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C. T. Lin
6714efc3a1
Closes #690 ## What Widens the AI SDK peer dependency ranges so the Chat SDK installs cleanly next to `ai@7`: - `chat`: `ai@^6.0.182 || ^7.0.0` - `@chat-adapter/web`: `ai@^6 || ^7`, `@ai-sdk/react@^3 || ^4`, `@ai-sdk/svelte@^4 || ^5`, `@ai-sdk/vue@^3 || ^4` This also unbreaks `create-chat-sdk` scaffolds, which install `ai@latest` (now v7) next to `chat` and currently hit a peer conflict out of the box. ## The one real v6 → v7 break In v7, `tool()` with an `execute` function returns `ExecutableTool<Tool<...>>` — an internal type from `@ai-sdk/provider-utils` that `ai` does not re-export. The `chat/ai` tool factories relied on inference, so declaration emit failed with TS2742 (17 errors). The factories now declare explicit `Tool<Input, Output>` return types, which is exactly the shape the previously published `.d.ts` already had — the public type surface is unchanged, and the emitted declarations only reference types from `ai` (portable for consumers on either major). Everything else checked out compatible: - v7 stream parts keep `text-delta` / `finish-step` shapes, so `fromFullStream` duck-typing works unchanged; `fullStream` remains as a deprecated alias - tool-level `needsApproval` is deprecated in v7 but still typed and honored - `createUIMessageStream`, `createUIMessageStreamResponse`, `isTextUIPart`, `UIMessage`, `UIMessageStreamWriter`, `ChatInit`, `DefaultChatTransport` all still exported — `@chat-adapter/web` needed zero source changes ## Other changes - devDependencies move to v7 so the workspace develops/tests against the latest major - `examples/nextjs-chat` and `examples/nuxt-chat` move to `ai@^7` (required — mixing majors across the workspace fails typecheck, since `chat`'s d.ts resolves `ai` types from its own devDependency) - Test-only: the `ToolExecutionOptions` stub type is now derived from `Tool["execute"]` because v7 made the generic parameter required - Changeset included (minor for `chat` and `@chat-adapter/web`) ## Verification The same source was verified against **both majors** (`ai@6.0.182` and `ai@7.0.17`): `tsc --noEmit` and the full test suites (`chat`: 1035 tests, `@chat-adapter/web`: 21 tests) pass on each. `pnpm validate` (knip + check + typecheck + test + build, including both examples) is green on v7. Note for adopters: `ai@7` itself requires Node.js ≥ 22 and is ESM-only; `chat` keeps `engines.node >= 20` since `ai` is an optional peer. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Signed-off-by: chentsulin <chentsulin@gmail.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com> Co-authored-by: dancer <josh@afterima.ge>