---
phase: 06-
plan: 01
subsystem: messaging
tags: [references, files, submit-payload, unit-test]
requires:
  - phase: 05-test-hardening-and-commit-hygiene
    provides: stable test baseline and commit hygiene
provides:
  - PromptInputMessage references contract
  - FileInMessage reference metadata compatibility
  - stale reference soft-fail filtering in submit payload
affects: [input-box, thread-submit, e2e]
tech-stack:
  added: []
  patterns:
    - additional_kwargs.files as single submit envelope
    - stale reference dropped without blocking submit
key-files:
  created:
    - .planning/phases/06-/06-01-SUMMARY.md
  modified:
    - frontend/src/components/ai-elements/prompt-input.tsx
    - frontend/src/core/messages/utils.ts
    - frontend/src/core/threads/hooks.ts
    - frontend/src/core/threads/hooks.test.ts
key-decisions:
  - "引用文件沿用 additional_kwargs.files，不引入并行字段结构。"
  - "失效引用只剔除并 toast，文本发送继续。"
requirements-completed: [ATREF-03]
duration: 20 min
completed: 2026-04-15
---

# Phase 06 Plan 01 Summary

**完成引用提交契约与软失败链路，确保 uploads + references 统一进 `additional_kwargs.files`。**

## Verification

- `cd frontend && node --test src/core/threads/hooks.test.ts`
  - 2 passed, 0 failed
- `cd frontend && pnpm -s typecheck`
  - passed

## Outcome

- `PromptInputMessage` 已支持 `references` 字段。
- `FileInMessage` 已支持 `ref_kind/ref_source` 可选元信息。
- `buildFilesForSubmit` 对 stale 引用执行软剔除且不阻断发送。