Pass 1 — ask_user_input correlation port (messages.ts:478, :549):
- The two correlation queries that backed the elicitation flow used to scan
messages.tool_calls and messages.tool_results JSON columns directly. They
now JOIN message_parts on payload->>'id' (for the caller assistant) and
payload->>'tool_call_id' (for the pending tool row). Semantics preserved:
ORDER BY m.created_at DESC LIMIT 1 still picks the latest issuance, the
already-answered 409 guard now reads payload.output, and the UPDATE +
parts replace inside sql.begin is unchanged from v1.13.0.
- Pre-v1.13.0 history has no parts rows and is unreachable to this lookup
path (404). Acceptable per dispatch decision — no pending elicitation
from before v1.13.0 will still be open. JSON-column fallback can land as
a hotfix if it ever surfaces.
Pass 2 — reasoning_parts wired end-to-end:
- types.ts/StreamResult gains `reasoning: string`. stream-phase.ts accumulates
reasoning-delta text per stream (replacing the v1.13.1-A counter-only
diagnostic) and returns it on the result.
- parts.ts/partsFromAssistantMessage gains an optional `reasoning` param.
When present it emits a kind='reasoning' part at sequence 0, ahead of
the text and tool_call parts.
- error-handler.ts/finalizeCompletion and tool-phase.ts/executeToolPhase
both thread result.reasoning into the dual-write call so reasoning-channel
models (qwen3.6) get persistent reasoning rows.
- payload.ts: loadContext SELECT pulls reasoning_parts from the v1.13.1-B
view; OpenAiMessage gains an optional `reasoning` field; buildMessagesPayload
collapses reasoning_parts into a single string per assistant message.
- stream-phase.ts/toModelMessages converts assistant messages with reasoning
into an AI SDK ModelMessage content array starting with a ReasoningPart,
matching the @ai-sdk/provider-utils AssistantContent union. Reasoning
models can now replay prior reasoning context across tool-call boundaries.
- types/api.ts and apps/web/src/api/types.ts Message interface gain
reasoning_parts (optional, nullable). Frontend doesn't render this yet —
field reserved for a v1.14 UI surface.
Tests: 2 new in parts.test.ts cover reasoning-at-sequence-0 with and
without text content. 172 tests pass (170 prior + 2 new).
Smoke verified against the live container:
- A reasoning-prompt ("walk through 17 × 23 step by step") produced one
message with kind='reasoning' (361 chars) at sequence 0 and kind='text'
(429 chars) at sequence 1. Adapter log confirmed reasoning capture.
- The new correlation SQL was validated against existing tool_call /
tool_result parts: returns the expected message_id + payload shape with
pending state correctly identified via payload.output IS NULL.
- ask_user_input end-to-end through the UI is Sam's smoke — the Prompt
Builder agent does not always trigger ask_user_input for these prompts,
so synthetic verification via SQL substituted for traffic-driven cover.
Annotation: the v1.13.1-A abort-throw site in stream-phase.ts got a
one-liner comment ("AI SDK v6 fullStream returns normally on abort; check
signal explicitly.") to prevent a future refactor removing it.
v1.13.2 drops the dual-write + the JSON columns + collapses the view.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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