59dc310bb5
# Conflicts: # docs/architecture.md # docs/config-catalog.md # docs/cordis-catalog/events.md # docs/cordis-catalog/services.md # docs/core-data-structures/core.md # docs/event-producer-consumer.md # docs/module-graph.md # examples/coding-agent/tests/code-mode.e2e.ts # examples/coding-agent/tests/coding-task.e2e.ts # examples/coding-agent/tests/compaction.e2e.ts # examples/coding-agent/tests/full-loop.e2e.ts # examples/coding-agent/tests/todo-write.e2e.ts # examples/cordis-agent/tests/cordis-tools.e2e.ts # packages/bash/tool-bash/tests/integration.spec.ts # packages/bash/tool-bash/tests/tools.spec.ts # packages/compact/compact-basic/tests/compact-loop-repro.spec.ts # packages/context/time-context/tests/time-context.spec.ts # packages/cordis/tool-cordis/src/api-catalog.ts # packages/cordis/tool-cordis/tests/integration.spec.ts # packages/core/agent-loop/README.md # packages/core/agent-loop/src/agent.ts # packages/core/agent-loop/src/index.ts # packages/core/agent-loop/tests/agent.spec.ts # packages/core/agent-loop/tests/cancel.spec.ts # packages/core/agent-loop/tests/config-session-id.spec.ts # packages/core/agent-loop/tests/contract-regressions.spec.ts # packages/core/agent-loop/tests/coverage-edges.spec.ts # packages/core/agent-loop/tests/interception.spec.ts # packages/core/agent-loop/tests/loop.spec.ts # packages/core/agent-loop/tests/properties.spec.ts # packages/core/agent-loop/tests/request-cache.e2e.ts # packages/core/agent-loop/tests/request-reconstruction.spec.ts # packages/core/agent-loop/tests/resume.spec.ts # packages/core/agent-loop/tests/scope-lifecycle.spec.ts # packages/core/agent-loop/tests/tool-order.spec.ts # packages/core/agent-loop/tests/turn-stop.spec.ts # packages/core/agent/src/types.ts # packages/examples/agent-spine-demo/README.md # packages/examples/agent-spine-demo/tests/agent-core.spec.ts # packages/examples/stdio-demo/README.md # packages/examples/stdio-demo/src/index.ts # packages/examples/stdio-demo/tests/stdio-agent.spec.ts # packages/fs/tool-fs/tests/fs-tools.e2e.ts # packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts # packages/hooks/hooks-claude/tests/bridge.spec.ts # packages/hooks/hooks-claude/tests/coverage.spec.ts # packages/hooks/hooks-codex/tests/bridge.spec.ts # packages/hooks/hooks-codex/tests/coverage.spec.ts # packages/subagent/subagent-fork/tests/multi-subagent.spec.ts # packages/subagent/subagent-fork/tests/subagent-fork.spec.ts # packages/subagent/subagent-inprocess/tests/structured.spec.ts # packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts # packages/subagent/subagent-spawn/tests/spawn.e2e.ts # packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts # packages/todo/tool-todo/tests/integration.spec.ts # packages/ui/acp/tests/dispose.spec.ts # packages/ui/acp/tests/edges.spec.ts # packages/workflow/workflow-workerthread/tests/integration.spec.ts
@deepseek-ai/dsh-subagent-spawn
The spawn provider creates a fresh child Agent in the current process. The child has its own session, sees no parent conversation history, and reuses the host's agent factory and LLM/tool services.
Behavior
start(request) delegates to startInProcessRun with no seed and awaits publication before returning. The child receives parent working-directory/session lineage and inherits the parent model unless overridden, but starts with an empty conversation.
The shared driver owns depth checking, persona and tool-filter setup, structured output, required-signal cancellation, one-shot execution, result reading, and quiescent disposal. A startup rejection leaves no published child; provider unload after fulfillment does not revoke the holder-owned run.
Capabilities
Spawn advertises { outputSchema: true, depthLimit: true, toolFilter: true, persona: true } because it controls the child's creation window and can enforce all four features.
Config
| Key | Meaning |
|---|---|
providerName |
Registry name on ctx.subagents (default spawn). |
Model Experience
Child-agent request
What the model sees: The fresh child receives the standalone task content verbatim, inherits the parent model and workspace by default, and sees the global prompt with any configured child-scoped persona shadow. A tool filter removes global wire schemas, executable lookup, and Code Mode SDK bindings for that child but leaves independently registered guidance. It receives zero parent conversation messages; the filter is visibility/composition, not an authority grant inherited from the parent.
Token effect: The child pays for a new independent context and history; no parent-history tokens are duplicated. Persona changes this child's repeated prompt cost, while filtering changes its schema or generated SDK cost.
Parent tool result, indirectly
What the model sees: Through dsh-tool-subagent, the parent receives only the child's final output or stop-reason error.
Token effect: Parent input grows by one data-dependent result retained until compaction.
Known Limitations and Deferred Work
- Runs expose no
sendMessage/resume— the optional runtime capabilities are absent on in-process runs. - Fresh means no parent transcript — the child inherits cwd, lineage, model, and explicitly configured persona/tool restrictions, but none of the parent's conversation; use the fork provider when completed-turn context is required.