dsh-acp-demo agents crash with InvariantError: "subagent/end" dispatched without a scope carrier (multi-instance @deepseek-ai/dsh-scope under global npm)

[nelsonBlack]

Symptom: launching a dsh-acp-demo agent and using the subagent or workflow tools kills the whole process: Paseo reports ACP agent exited unexpectedly (1) with InvariantError: invariant violated by "@deepseek-ai/dsh-scope": "subagent/end" is a scope-filtered event but was dispatched without a scope carrier.

Root cause (confirmed by inspection of the stack + install layout):

1. @deepseek-ai/dsh-scope keeps its carrier registry in a module-local WeakMap. A global npm i -g of dsh-acp-demo + its peers (npm 11 peer auto-install) created ~24 real nested copies of dsh-scope@0.1.0-rc.6 (one under each consumer, no top-level copy). The invariant plugin validates carriers using the copy it was loaded from, while dsh-subagent builds carriers with scopeTarget from a different copy — so isScopeCarrier() is false for every subagent/end dispatch, parented or not.
2. Separately, parentless runs (e.g. subagent runs started by the workflow worker thread) dispatch with no carrier at all, which would violate the invariant even with a single instance.

Local workaround (verified end-to-end with Paseo 0.4.0): unify dsh-scope to one top-level instance and remove the nested copies (plus a top-level @deepseek-ai/cordis symlink to the runtime's nested copy so Context identity matches), and make the lifecycle emitter fall back to a carrier for parentless runs.

Suggested upstream fixes (any of): publish so the peer/dependency layout hoists instead of nesting real copies (or dedupe in the loader), make the invariant accept carriers from sibling module instances, and always dispatch subagent/end with a carrier even when the run has no parent.

[leenkcool]

#1728 可以自己提PR收录 。记得互相赞赏。

你这个挺好。