Task: Diagnose AI Design message send failure in client

Identity

Task ID: 20260903-design-message-send-client-8d3f2a71
Mode: Feature
Branch: codex/20260903-design-message-send-client-8d3f2a71-design-message-send-client
Worktree: D:\Datas\OthersProjects\makelore-design-send-failure-8d3f2a71
Base commit: e9875145b4
Owner: codex-root
Status: Ready for Integration

Diagnose the reported AI Design chat path from the Renderer composer through the Main-owned Works Square V2 command submission, Agent run polling, canonical Workspace refresh, and Renderer pending-operation reconciliation.
Own only the Main-owned Works Square V2 adapter/error boundary, its local Host API error transport, the Renderer Image Workspace API/store/chat presentation, their shared command-outcome type, focused tests, and this task record.
Do not modify the Works Square server while its task registry is inconsistent. Do not touch Plugin Marketplace/My Plugins/Project Plugins pages, plugin navigation, sidebar/router code, database/API DTOs, packaging, deployment, publication, or paid Provider activation.

Reproduce the exact user-visible failure with a narrow automated seam before changing behavior, and distinguish command receipt from Agent-run success and canonical Workspace commit.
Preserve ADR-007: the Current Specification remains authoritative, mutation transport ambiguity retains the original stable command/operation identity, and no timeout or failure creates an automatic fresh request.
Preserve the local chat draft until success is confirmed. Project terminal Agent failures and transport-unknown results with accurate, youth-readable Chinese copy instead of presenting every rejection as a network send failure.
Treat the supplied trace as evidence only for request dispatch and polling: it has no reasoner_response or successful canonical update event. Do not infer a completed write from HTTP access-log 200 lines alone.

Task ID: 20260903-design-message-send-client-8d3f2a71.
Mode: Feature.
Branch/worktree: codex/20260903-design-message-send-client-8d3f2a71-design-message-send-client / D:\Datas\OthersProjects\makelore-design-send-failure-8d3f2a71.
Base commit: e9875145b41a2cb1827de10d27a4fc6a352704ea.
Ownership result: isolated and claimed by codex-root; the canonical root's three existing untracked task records remain untouched.
Peer boundary: 20260903-plugin-navigation-design-7c4e2a91 owns read-only planning for the three Plugin entrances. This task will not touch its pages, navigation, sidebar, or router. The integrated Youth Design task is read-only historical context and no active peer owns the files listed above.
Gate result: Passed.

Read the startup memory set, active task, project positioning, current state, decision index, system overview, business rules, success criteria, evidence index, ADR-007, module map, data flow, and the relevant Youth Design and live-client hang task scopes.
Confirmed the supported V2 flow is Renderer draft -> stable command -> Main-owned Agent command/run -> canonical Workspace refresh; access-log receipt is not the semantic success boundary.
Planning Gate result: Passed for the bounded client diagnosis and minimal fix above.

The supplied production trace proves that the command reached the V2 reasoner and that the client polled the Agent run, but it contains neither a structured reasoner result nor the run's terminal payload. HTTP 200 polling lines therefore do not prove that the design mutation succeeded.
Reproduced three client defects with failing tests: terminal design_reasoner_invalid was projected as HTTP 422, terminal Agent failures were retained as transport-unknown operations, and the chat pane discarded the safe failure and always claimed that the message was not sent.
Added an explicit commandOutcome contract from Main through the local route, Host API/AppError, Renderer API error, and store. Main now marks a failed/cancelled Agent run as definitive_failure; an accepted command whose polling or canonical refresh fails remains unknown with the original stable operation ID.
Definitive failures preserve the local chat draft, remove the settled pending operation and any partial assistant stream, and show fixed youth-readable Chinese copy. Unknown outcomes preserve the draft, pending command identity, and partial stream so retry cannot silently create a second mutation. Polling auth expiry is explicitly covered by that unknown path.
Corrected V2 run error status projection, including design_reasoner_invalid -> 502, while keeping canonical 409 refresh behavior.
No server, Plugin Marketplace/My Plugins/Project Plugins, navigation, sidebar, or router file was changed.

Red phase: the initial focused suite failed in the three reported seams (safe chat copy, terminal store settlement, and reasoner status/copy). The outcome-transport extension then produced six expected failures across Main, local route, Host API, Renderer API, and store before implementation.
Focused and adjacent suites: 10 files / 85 tests passed after implementation; the final stream-settlement pair passed 20/20.
Full ordinary suite: 221 files and 1,822 tests passed, with 2 declared skips. Its only first-run failure occurred before product code loaded because Windows denied the Electron dependency self-installer permission to replace an in-use electron.exe. Re-running that real-process file through its supported MAKELORE_PI_ELECTRON_EXECUTABLE override passed 2/2 with the same 2 skips.
The isolated pressure suite passed 1/1 with Main-to-React p95 37.94 ms.
pnpm exec tsc --noEmit, scoped ESLint for every changed TypeScript file, pnpm run build:vite, and git diff --check passed. Vite emitted only existing Browserslist, chunk-size, and dynamic/static import warnings.
Independent final read-only review passed with no P1/P2 findings after two found settlement gaps were fixed: non-enumerated terminal errors and accepted-command polling auth ambiguity, followed by partial-stream cleanup on definitive failure.

Query production run 0bb3a074-aee2-43bf-af7d-ca4585b96132 read-only and inspect status, error_code, retryability, attempts, and timestamps. The attached trace alone cannot distinguish design_reasoner_invalid, provider/runtime unavailable, or a still-running run.
If the production run confirms a server-side reasoner failure, remediate it in a separately owned server task after the server task registry inconsistency is repaired; this client task intentionally made no server write.

None. The explicit outcome transport implements the already accepted ADR-007 requirement that ambiguous mutation results retain their stable operation identity.