Cowork Doc Expression Mark

Propose linking an existing passage to an existing claim (an expression row), propose-weight and read-mostly in v1.

MCP name: cowork_doc_expression_mark

Category: cowork

Mutates state (retry policy: manual)

Parameters

Name	Type	Required	Description
claim_ref	str	Yes	A wb-truth URI or a local claim id the passage expresses. It must resolve in this store.
consumer	str	No	Server-derived document-agent consumer identity. Supply with conversation_id and generation.
conversation_id	str	No	Bound document conversation id. Required with consumer and generation for a persistent Co-work driver.
document_id	str	Yes	Target cowork doc id.
generation	str	No	Live document-agent lease generation. A stale generation is fenced before mutation.
producer_call_id	str	No	Optional durable model call identifier.
producer_model	str	Yes	Required model claim for the authoring agent. It must match a non-placeholder session-manifest model, otherwise it is durably labeled caller_asserted.
role	str	Yes	Required. One of quote, paraphrase, summary, or instantiation, stating how the passage expresses the claim.
span	dict	Yes	A mapping of {exact, prefix, suffix, node_id_hint?} for the passage.
store_id	str	Yes	Registered Truth store identity.