feat: sync DurableAgent with latest workflow repo changes#13774
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gr2m merged 2 commits intogr2m/durable-agentfrom Mar 23, 2026
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feat: sync DurableAgent with latest workflow repo changes#13774gr2m merged 2 commits intogr2m/durable-agentfrom
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Sync changes from vercel/workflow packages/ai/src/agent since Jan 30 (PR #12165 creation date): - Add telemetry support via recordSpan wrapper around model.doStream() and new telemetry.ts module with OTel span recording - Add normalizeFinishReason for cross-version compatibility (v5 string vs v6 { unified, raw } object) - Fix prepareStep ordering: messages applied before system so system message isn't lost when messages replaces the prompt (#1389) - Make DurableAgentOptions generic: tools/toolChoice properly typed - Add prepareStep to DurableAgentOptions constructor for default step preparation across all stream() calls - Add TelemetrySettings.recordInputs/recordOutputs options - Add InferDurableAgentTools/InferDurableAgentUIMessage type helpers - Update sendStart docstring explaining when to set false - Pass telemetry through to executeTool calls Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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AI SDK v5 support is not needed. Use finishReason.unified directly instead of the normalizeFinishReason wrapper that handled both v5 string and v6 object formats. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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## Summary Syncs DurableAgent code with changes from [vercel/workflow](https://github.com/vercel/workflow/tree/main/packages/ai/src/agent) since PR #12165 was opened (Jan 30, 2026). Key workflow PRs incorporated: - [#1362](vercel/workflow#1362) — AI SDK v6 migration, compat tests - [#1385](vercel/workflow#1385) — Various compatibility fixes - [#1389](vercel/workflow#1389) — Fix prepareStep system message lost when messages also returned - [#1329](vercel/workflow#1329) — Client-side tools support ## Changes - **Telemetry**: Add `recordSpan` wrapper around `model.doStream()` with OTel span attributes (provider, model, generation settings). New `telemetry.ts` module with lazy OTel API loading. - **`normalizeFinishReason`**: Handle both v5 string (`'stop'`) and v6 object (`{ unified: 'stop', raw: 'stop' }`) finish reason formats - **prepareStep ordering fix**: Apply `messages` override before `system` so the system message isn't lost when messages replaces the prompt - **Generic `DurableAgentOptions<TTools>`**: Tools and toolChoice properly typed through the generic parameter - **Constructor `prepareStep`**: New field on `DurableAgentOptions` for default step preparation across all `stream()` calls - **`TelemetrySettings`**: Add `recordInputs`/`recordOutputs` options - **Type helpers**: Export `InferDurableAgentTools` and `InferDurableAgentUIMessage` - **`sendStart` docs**: Explain when to set `false` (custom pre-stream UIMessageChunks) - **Telemetry threading**: Pass telemetry settings through to `executeTool` calls ## Test plan - [x] `pnpm type-check` — zero production code errors - [x] `pnpm check` — lint passes - [x] `pnpm build` in packages/durable-agent — builds - [x] `pnpm test:node` in packages/durable-agent — 60 passed, 22 expected fail (same as before) --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Syncs DurableAgent code with changes from vercel/workflow since PR #12165 was opened (Jan 30, 2026). Key workflow PRs incorporated:
Changes
recordSpanwrapper aroundmodel.doStream()with OTel span attributes (provider, model, generation settings). Newtelemetry.tsmodule with lazy OTel API loading.normalizeFinishReason: Handle both v5 string ('stop') and v6 object ({ unified: 'stop', raw: 'stop' }) finish reason formatsmessagesoverride beforesystemso the system message isn't lost when messages replaces the promptDurableAgentOptions<TTools>: Tools and toolChoice properly typed through the generic parameterprepareStep: New field onDurableAgentOptionsfor default step preparation across allstream()callsTelemetrySettings: AddrecordInputs/recordOutputsoptionsInferDurableAgentToolsandInferDurableAgentUIMessagesendStartdocs: Explain when to setfalse(custom pre-stream UIMessageChunks)executeToolcallsTest plan
pnpm type-check— zero production code errorspnpm check— lint passespnpm buildin packages/durable-agent — buildspnpm test:nodein packages/durable-agent — 60 passed, 22 expected fail (same as before)