🆕 WorkflowAgent (@ai-sdk/workflow)

.changeset/stale-chairs-repeat.md

@@ -0,0 +1,5 @@
+---
+'@ai-sdk/workflow': major
+---
+
+initial version

.changeset/workflow-serde-support.md

@@ -0,0 +1,43 @@
+---
+'@ai-sdk/provider-utils': patch
+'@ai-sdk/anthropic': patch
+'@ai-sdk/openai': patch
+'@ai-sdk/google': patch
+'@ai-sdk/google-vertex': patch
+'@ai-sdk/amazon-bedrock': patch
+'@ai-sdk/openai-compatible': patch
+'@ai-sdk/groq': patch
+'@ai-sdk/mistral': patch
+'@ai-sdk/cohere': patch
+'@ai-sdk/alibaba': patch
+'@ai-sdk/deepseek': patch
+'@ai-sdk/deepinfra': patch
+'@ai-sdk/perplexity': patch
+'@ai-sdk/xai': patch
+'@ai-sdk/moonshotai': patch
+'@ai-sdk/huggingface': patch
+'@ai-sdk/open-responses': patch
+'@ai-sdk/gateway': patch
+'@ai-sdk/prodia': patch
+'@ai-sdk/fal': patch
+'@ai-sdk/luma': patch
+'@ai-sdk/replicate': patch
+'@ai-sdk/fireworks': patch
+'@ai-sdk/togetherai': patch
+'@ai-sdk/black-forest-labs': patch
+'@ai-sdk/deepgram': patch
+'@ai-sdk/elevenlabs': patch
+'@ai-sdk/hume': patch
+'@ai-sdk/lmnt': patch
+'@ai-sdk/assemblyai': patch
+'@ai-sdk/gladia': patch
+'@ai-sdk/revai': patch
+---
+
+Add workflow serialization support to all provider models.
+
+**`@ai-sdk/provider-utils`:** New `serializeModel()` helper that extracts only serializable properties from a model instance, filtering out functions and objects containing functions. Third-party provider authors can use this to add workflow support to their own models.
+
+**All providers:** `headers` is now optional in provider config types. This is non-breaking — existing code that passes `headers` continues to work. Custom provider implementations that construct model configs manually can now omit `headers`, which is useful when models are deserialized from a workflow step boundary where auth is provided separately.
+
+All provider model classes now include `WORKFLOW_SERIALIZE` and `WORKFLOW_DESERIALIZE` static methods, enabling them to cross workflow step boundaries without serialization errors.

.gitignore

@@ -5,6 +5,8 @@
 .envrc
 .next
 .turbo
+.well-known
+.workflow-vitest
 dist
 dist-ssr
 dist-bundle-check