Usage

In the composer's tool row, click the cue button.
Pick a target session by title, then select its user nodes — click to toggle, drag to box-select, or 全选 / 清空 for batch. Agent replies are shown collapsed and are never selectable; only user messages become nodes.
Confirm (cue 这些结点): the selection becomes chips in the composer, captured at cue time — the context snapshot is built by fixed client code the moment you confirm and shipped inside each chip. Consecutive nodes merge into one chip automatically.
Send the message. On the host, an agent/pre-step listener parses the dsh-cue: mentions, rewrites them to a readable marker ([cue 引用：@标题 #seq…]) so the model knows a reference happened, and prepends a wrapped session-reference recall message:
```
## Cued nodes from 

用户 cue 引用了以下结点，请把它们作为跨会话参考上下文阅读：
...
```
The recall message rides the harness's first-class cross-session form (source.kind: 'session-reference' + form: 'recall'), so the transcript renders a persistent "Session recall" node with the source label and retained/omitted counts — the model and the user can both tell referenced context apart from the native conversation.

dsh-cue-plugin