chore(eino): sync english docs

Author: shentongmartin

content/en/docs/eino/FAQ.md

@@ -1,6 +1,6 @@
 ---
 Description: ""
-date: "2025-12-01"
+date: "2025-12-11"
 lastmod: ""
 tags: []
 title: FAQ
@@ -9,7 +9,7 @@ weight: 6
 
 # Q: cannot use openapi3.TypeObject (untyped string constant "object") as *openapi3.Types value in struct literal; cannot use types (variable of type string) as *openapi3.Types value in struct literal
 
-Ensure the `github.com/getkin/kin-openapi` dependency version does not exceed `v0.118.0`.
+Ensure the `github.com/getkin/kin-openapi` dependency version does not exceed `v0.118.0`. Starting from Eino `v0.6.0`, Eino no longer depends on the `kin-openapi` library.
 
 # Q: During agent streaming, it never reaches ToolsNode, or streaming is lost and appears non-streaming.
 
@@ -111,15 +111,26 @@ Check whether the model supports image input (for Doubao models, only variants w
 
 # Q: How to access Reasoning Content / “thinking” output from a chat model?
 
-If a model implementation supports Reasoning Content (deep thinking), it is stored in the `Extra` field of the output `Message`. The provider package usually offers helpers like `GetReasoningContent`/`GetThinking` to extract it.
+If the model implementation supports Reasoning Content, it is stored in the `ReasoningContent` field of the output `Message`.
 
 # Q: Errors include `context deadline exceeded`, `timeout`, or `context canceled`
 
-This indicates a timeout or that the `ctx` was canceled by a service/framework or manually. Adjust timeouts or investigate your code. If model/component latency seems abnormally high, contact the provider directly. Eino only passes through.
+Cases:
+
+1. `context.canceled`: While executing a graph or agent, the user code passed a cancelable context and triggered cancellation. Investigate your application’s context-cancel logic. This is unrelated to the Eino framework.
+2. `context deadline exceeded`: Two common possibilities:
+   1. During graph or agent execution, the user code passed a context with a timeout, which was reached.
+   2. A `ChatModel` or other external resource has its own timeout configured (or its HTTP client does), which was reached.
+
+Inspect the thrown error for `node path: [node name x]`. If the node name is not a `ChatModel` or any node that performs external calls, it is likely case 2-a; otherwise, it is likely case 2-b.
+
+If you suspect 2-a, trace upstream to find where a timeout was set on the context (common sources include FaaS platforms, gateways, etc.).
+
+If you suspect 2-b, check whether the node itself configures a timeout (e.g., Ark ChatModel `Timeout`, or OpenAI ChatModel via an `HttpClient` with `Timeout`). If none are configured but timeouts still occur, it may be the SDK’s default timeout. Known defaults: Ark SDK 10 minutes; Deepseek SDK 5 minutes.
 
 # Q: How to access parent graph `State` within a subgraph?
 
-If both parent and subgraph have `state`, the subgraph’s state overrides the parent’s. Define a custom context key. Before invoking the subgraph, call `compose.ProcessState()` to retrieve the parent state and pass it via your custom context key.
+If the subgraph and parent graph have different `State` types, use `ProcessState[ParentStateType]()` to process the parent’s state. If they share the same `State` type, make the types distinct (for example, with a type alias: `type NewParentStateType StateType`).
 
 # Q: How does `eino-ext` adapt multimodal input/output for supported models?
 
@@ -137,7 +148,6 @@ If `eino-ext` modules error with `undefined: schema.NewParamsOneOfByOpenAPIV3`,
 
 If schema migration is complex, use the helper tooling in the [JSONSchema conversion guide](https://bytedance.larkoffice.com/wiki/ZMaawoQC4iIjNykzahwc6YOknXf).
 
-# Q: `context canceled` / `context deadline exceeded`
-
-The `ctx` passed to Eino was canceled or timed out; this is unrelated to the framework itself.
+# Q: Which ChatModels in `eino-ext` support the Responses API form?
 
+By default, ChatModels generated by `eino-ext` do not support the Responses API; they support only the Chat Completions API. A special case is the Ark Chat Model, which implicitly supports the Responses API when you set `Cache.APIType = ResponsesAPI`.

content/en/docs/eino/_index.md

@@ -1,6 +1,6 @@
 ---
 Description: Eino is a Golang-based AI application development framework
-date: "2025-11-20"
+date: "2025-12-09"
 lastmod: ""
 linktitle: Eino
 menu:
@@ -12,4 +12,3 @@ title: Eino User Manual
 weight: 6
 ---
 
-