deepseek-harness/packages/support/subagent-mock

@deepseek-ai/dsh-subagent-mock

A scripted SubagentProvider for testing the subagent seam without a model or a real child agent — the subagent analog of dsh-llm-replay.

It lets a test drive ctx.subagents and the model-facing dsh-tool-subagent through the real cordis Loader / export path, exercising provider registration, start-time capability validation, the run lifecycle (result / cancel / dispose), and the structured-output branch — all deterministically and keylessly.

Usage

Load it as a plugin (functional shape: name/inject/Config/apply, no default). Config (all optional):

Key	Default	Meaning
name	mock	Registry name to register the provider under.
reply	mock subagent reply	The scripted child's final answer text.
stopReason	completed	The stop reason result settles with.
capabilities	all true	Which start-time capabilities (outputSchema/depthLimit/toolFilter) the provider advertises.
inheritsParentContext	false	The context contract to declare; true exercises the fork-shaped tool wording in consumer tests.
structured	{ reply }	Structured value surfaced when a request carries an outputSchema and the capability is on.

A cancel() issued before result settles flips the stop reason to aborted, so the cancellation path is observable.