feat(agent): add turn lineage support for derived turns#1556
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Introduce TurnMetadata (ParentTurnID + Relation) that flows through the
existing SendInput -> Runtime Exec -> Turn persistence pipeline, allowing
Retry to create a new Turn in the same Session with a parent_turn_id
link, without introducing Child Sessions or modifying Provider APIs.
Changes:
- Store: add parent_turn_id and relation columns to workspace_agent_turns
(nullable, CHECK constraint on relation: 'retry', 'edit')
- Migration: workspace_agent_turn_lineage_v1 ALTER TABLE + CREATE TABLE
column inclusion for drop-rebuild compatibility
- Runtime: TurnMetadata struct threaded through ExecInput -> beginTurn ->
submittedTurnActivityEvents -> event.Payload.Metadata
- Canonical/Compat: ParentTurnID + Relation added to WorkspaceAgentTurnPatch,
WorkspaceAgentTurnStateUpdate, TurnTransition, Turn
- Daemon adapter: mapTurnMetadataFromService bridges host -> runtime types
- Host API: Host.RetryTurn validates turn settled + extracts user message +
calls SendInput with TurnMetadata{ParentTurnID, Relation: "retry"}
- Tests: Store lineage persistence (3 tests) + Host RetryTurn validation (6 tests)
Design principles:
- Retry/Edit creates a new Turn; historical Turns are never modified
- Runtime has zero Retry/Edit business logic (generic metadata pass-through)
- Provider is unaware of Retry/Edit (no context replay, no API changes)
- Normal SendInput without TurnMetadata is fully backward compatible
Signed-off-by: WorkBuddy <noreply@codebuddy.cn>
Signed-off-by: man tuo <2428184991@qq.com>
Introduce parent_turn_id/relation infrastructure across Host, store, and runtime so derived turns (Retry first) can record lineage without mutating the parent turn. Add Host conformance coverage for RetryTurn. Signed-off-by: man tuo <2428184991@qq.com> Co-authored-by: Cursor <cursoragent@cursor.com>
Signed-off-by: man tuo <2428184991@qq.com>
Signed-off-by: man tuo <2428184991@qq.com>
Signed-off-by: man tuo <2428184991@qq.com>
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Summary
main(5e4e011fc) after resolving conflicts with capability-refs / TuttiMode / submit provenance fields that landed on trunk.parent_turn_id/relation) across Host, store-sqlite, and runtime so derived turns (Retry first) can record lineage without mutating the parent turn.RetryTurn.Supersedes closed PR #1549 (GitHub could not reopen that PR after the rebase force-push).
Test plan
go test ./packages/agent/host/ ./packages/agent/host/conformance/ ./packages/agent/store-sqlite/ ./packages/agent/daemon/runtime/go test ./services/tuttid/service/agent/ -run 'Conformance|Retry|Lineage|Host'Made with Cursor