收敛输入编辑器单一状态并补齐附件投影

聊天与快速编辑输入统一由 Lexical 编辑器持有唯一当前状态 App 通过输入句柄读取草稿，移除跨视图 EditorState 和字符串镜像 DirectProject 将附件与图片 sidecar 投影纳入 prompt，支持附件-only 输入迁移润色测试并更新 DirectProject 里程碑验收记录
抽取通用富文本输入组件
2026-09-15 22:13:25 +08:00 · 2026-09-15 19:42:37 +08:00 · 2026-09-15 17:54:00 +08:00 · 2026-09-15 17:53:33 +08:00 · 2026-09-15 17:33:49 +08:00 · 2026-09-15 17:32:46 +08:00
110 changed files with 13295 additions and 1774 deletions
@@ -164,6 +164,7 @@ module.exports = {
    'server-rs/target-*',
    'apps/desktop-shell/src-tauri/target',
    'apps/ai-game-creator-shell/src/features/ui-editor/types/**',
+    'apps/ai-game-creator-shell/src/features/project-workspace/generated/**',
    'target',
    'src/main.tsx',
    'src/App.tsx',
@@ -113,6 +113,11 @@ const allowedUncalledTauriCommands = [
  'chat_with_game_creator_agent',
  'check_ui_editor_font_glyph_coverage',
  'create_ui_design_resource',
+  // 图片类生成的同步变体：GUI 已改为 `start_local_project_asset_generation` + 项目内任务账本
+  // （提交即返回、后台生成）。这条命令**没有生产调用方**，只有 Rust 集成测试
+  // （`src/tests/project.rs`）与 `commands.rs` 单测在调；待后续批次删除，或改为转调
+  // `start_local_project_asset_generation`。
+  'generate_local_project_asset',
  'open_game_creator_launcher_window',
  'open_game_creator_workspace_window',
  'read_direct_project_conversation',
@@ -9,6 +9,10 @@ import {
 const agcDevHost = '127.0.0.1';
 const legacyAgcDevPort = 3080;
 const agcVitePortEnvKey = 'GENARRATIVE_AGC_VITE_PORT';
+const agcAdminWebHost = '127.0.0.1';
+const legacyAgcAdminWebPort = 3102;
+// 与 scripts/dev.mjs 的后台 Web 端口配置保持同一环境变量名。
+const agcAdminWebPortEnvKey = 'ADMIN_WEB_PORT';

 function readConfiguredAgcDevPort(env = process.env) {
  const rawPort = String(env[agcVitePortEnvKey] ?? '').trim();
@@ -99,13 +103,100 @@ function withAgcDevEndpointEnv(endpoint, env = process.env) {
  };
 }

+function readConfiguredAgcAdminWebPort(env = process.env) {
+  const rawPort = String(env[agcAdminWebPortEnvKey] ?? '').trim();
+  if (!rawPort) {
+    return null;
+  }
+
+  const port = normalizePort(rawPort, -1);
+  if (port < 1024) {
+    throw new Error(`${agcAdminWebPortEnvKey} 必须是 1024-65535 的有效端口`);
+  }
+  return port;
+}
+
+function createAgcAdminWebEndpoint(port, portRange = null) {
+  const origin = `http://${agcAdminWebHost}:${port}`;
+  return {
+    host: agcAdminWebHost,
+    port,
+    origin,
+    basePath: '/admin/',
+    url: `${origin}/admin/`,
+    portRange,
+  };
+}
+
+// AGC 开发态的后台 Web 与 `npm run dev` 的后台 Vite 共用同一套优先端口约定：
+// Linux 取当前用户端口段的 `start + 3` 槽位，非 Linux 保留 `3102` 兼容首选并允许统一漂移。
+async function resolveAgcAdminWebEndpoint({
+  env = process.env,
+  platform = process.platform,
+  strictConfigured = false,
+  reservedPorts = [],
+  reservePortRange = reserveLinuxDevPortRange,
+  findPort = findAvailablePort,
+} = {}) {
+  const configuredPort = readConfiguredAgcAdminWebPort(env);
+  let portRange = null;
+  let preferredPort = configuredPort ?? legacyAgcAdminWebPort;
+
+  if (platform === 'linux') {
+    const allocation = await reservePortRange({ env });
+    if (!allocation?.range) {
+      throw new Error('无法取得当前 Linux 用户的 dev 端口段');
+    }
+    portRange = allocation.range;
+    const mappedAdminWebPort = mapDevPortsToPortRange(portRange)?.adminWebPort;
+    if (!Number.isInteger(mappedAdminWebPort)) {
+      throw new Error(
+        `当前 Linux dev 端口段 ${portRange.label} 缺少后台 Web 槽位；请先迁移为至少 6 个端口且不与其它用户重叠的端口段`,
+      );
+    }
+    preferredPort = configuredPort ?? mappedAdminWebPort;
+  }
+
+  const reservedPortSet = new Set(
+    reservedPorts.filter((value) => Number.isInteger(value) && value > 0),
+  );
+  const port = await findPort({
+    host: agcAdminWebHost,
+    preferredPort,
+    portRange,
+    reservedPorts: reservedPortSet,
+    strict: strictConfigured && configuredPort != null,
+  });
+  console.log(
+    formatPortDecision({
+      name: 'ai-game-creator-shell-admin-web',
+      host: agcAdminWebHost,
+      preferredPort,
+      resolvedPort: port,
+    }),
+  );
+  if (portRange) {
+    console.log(
+      `[ai-game-creator-shell] admin-web port-range: ${portRange.label}`,
+    );
+  }
+
+  return createAgcAdminWebEndpoint(port, portRange);
+}
+
 export {
+  agcAdminWebHost,
+  agcAdminWebPortEnvKey,
  agcDevHost,
  agcVitePortEnvKey,
+  createAgcAdminWebEndpoint,
  createAgcDevEndpoint,
+  legacyAgcAdminWebPort,
  legacyAgcDevPort,
  readAgcDevEndpoint,
+  readConfiguredAgcAdminWebPort,
  readConfiguredAgcDevPort,
+  resolveAgcAdminWebEndpoint,
  resolveAgcDevEndpoint,
  withAgcDevEndpointEnv,
 };
@@ -14,12 +14,14 @@ import {
 import {
  agcVitePortEnvKey,
  readAgcDevEndpoint,
+  resolveAgcAdminWebEndpoint,
  resolveAgcDevEndpoint,
  withAgcDevEndpointEnv,
 } from './dev-port.mjs';

 const appRoot = fileURLToPath(new URL('..', import.meta.url));
 const repoRoot = resolve(appRoot, '../..');
+const adminWebDir = resolve(repoRoot, 'apps/admin-web');
 const devStackStatePath = resolve(repoRoot, '.app/dev-stack.json');
 const apiServerExePath = resolve(
  repoRoot,
@@ -32,6 +34,8 @@ const backendSpacetimeDataDir = resolve(
  repoRoot,
  'server-rs/.spacetimedb/ai-game-creator/data',
 );
+// 后台 Web 默认跟随 AGC 一起起来，便于联调后台页面；`AGC_DEV_ADMIN_WEB=0` 可关闭。
+const agcDevAdminWebEnvKey = 'AGC_DEV_ADMIN_WEB';
 const npm = process.platform === 'win32' ? 'npm.cmd' : 'npm';
 const childLifecycles = new WeakMap();

@@ -200,36 +204,122 @@ function urlPort(url) {
  }
 }

-// 读取端口当前真正的监听进程身份。返回 null 表示探测本身不可用（例如缺少
-// Get-NetTCPConnection），此时调用方必须退化为旧行为，不能让本地启动直接失败。
+// 端口归属探测脚本。历史实现用 `Get-NetTCPConnection` 取监听进程，而它底层走
+// WMI：实测单端口单次 11.2 秒、再叠加每个 PID 的 `Get-CimInstance` 3.3 秒，
+// 一轮探测约 43 秒，直接把"配套后端就绪"等待拖到分钟级。改用原生
+// `netstat -ano`（约 30 毫秒）取端口 -> PID，再用 .NET `Process` 读进程名和
+// 可执行文件路径（毫秒级）；只有核对 SpacetimeDB `--data-dir` 归属时才按 PID
+// 取命令行，并允许调用方把已知命令行传进来复用。
+const windowsPortOwnerProbeCommand = [
+  '$ErrorActionPreference = "SilentlyContinue"',
+  '$queriedPorts = @()',
+  'foreach ($raw in ($env:GENARRATIVE_QUERY_PORTS -split ",")) {',
+  '  if ($raw -match "^\\d+$") { $queriedPorts += [int]$raw }',
+  '}',
+  '$knownCommandLines = @{}',
+  'if ($env:GENARRATIVE_KNOWN_COMMAND_LINES) {',
+  '  try {',
+  '    foreach ($property in (ConvertFrom-Json $env:GENARRATIVE_KNOWN_COMMAND_LINES).PSObject.Properties) {',
+  '      $knownCommandLines[[int]$property.Name] = [string]$property.Value',
+  '    }',
+  '  } catch { }',
+  '}',
+  '$listenerPidByPort = @{}',
+  'foreach ($line in (netstat -ano -p tcp)) {',
+  '  $fields = @($line -split "\\s+" | Where-Object { $_ })',
+  '  if ($fields.Count -lt 4) { continue }',
+  '  if ($fields[0] -ne "TCP") { continue }',
+  '  # A listening socket always has foreign address 0.0.0.0:0 / [::]:0, which',
+  '  # is locale-independent unlike the localized netstat State column.',
+  '  if ($fields[2] -notmatch ":0$") { continue }',
+  '  $localPort = [int]($fields[1].Split(":")[-1])',
+  '  if ($queriedPorts -notcontains $localPort) { continue }',
+  '  # The PID is the last column; do not hardcode its index.',
+  '  if ($fields[-1] -notmatch "^\\d+$") { continue }',
+  '  $listenerPidByPort[$localPort] = [int]$fields[-1]',
+  '}',
+  '$result = @()',
+  'foreach ($port in ($listenerPidByPort.Keys | Sort-Object)) {',
+  '  $processId = $listenerPidByPort[$port]',
+  '  $name = $null',
+  '  $executablePath = $null',
+  '  $commandLine = $null',
+  '  try {',
+  '    $process = [System.Diagnostics.Process]::GetProcessById($processId)',
+  '    $name = $process.ProcessName + ".exe"',
+  '    try { $executablePath = $process.MainModule.FileName } catch { }',
+  '  } catch { }',
+  '  if ($knownCommandLines.ContainsKey($processId)) {',
+  '    $commandLine = $knownCommandLines[$processId]',
+  '  } elseif (($name -like "spacetime*") -or (-not $executablePath)) {',
+  '    try { $commandLine = (Get-CimInstance Win32_Process -Filter ("ProcessId=" + $processId)).CommandLine } catch { }',
+  '  }',
+  '  $result += [pscustomobject]@{ port = [int]$port; processId = $processId; name = $name; executablePath = $executablePath; commandLine = $commandLine }',
+  '}',
+  'ConvertTo-Json -InputObject @($result) -Compress',
+].join('\n');
+
+// 进程命令行在进程生命周期内不变，但 PID 会被系统复用；按 PID 记 TTL 缓存，
+// 让"等配套后端就绪"的轮询只在首个周期付出 WMI 成本。TTL 取 5 分钟：本轮实测
+// 这台机器上首次 WMI 调用约 18 秒（热调用 3.3 秒），而 PID 在 5 分钟内被复用
+// 成另一个运行本工作树 data dir 的 SpacetimeDB 才能造成误判，概率可忽略。
+// 默认实现才缓存，注入实现（测试）与显式 env 始终重新读取。
+const WINDOWS_COMMAND_LINE_CACHE_TTL_MS = 300_000;
+const windowsPortOwnerCommandLineCache = new Map();
+
+function resolveCommandLineCache({ spawnImpl, env }) {
+  return spawnImpl === spawnSync && env === process.env
+    ? windowsPortOwnerCommandLineCache
+    : new Map();
+}
+
+// 读取端口当前真正的监听进程身份。返回 null 表示探测本身不可用（例如系统缺少
+// netstat），此时调用方必须退化为旧行为，不能让本地启动直接失败。
 function readWindowsPortOwnerIdentities(
  ports,
-  { spawnImpl = spawnSync, env = process.env } = {},
+  {
+    spawnImpl = spawnSync,
+    env = process.env,
+    now = Date.now,
+    commandLineTtlMs = WINDOWS_COMMAND_LINE_CACHE_TTL_MS,
+    commandLineCache = resolveCommandLineCache({ spawnImpl, env }),
+  } = {},
 ) {
  const uniquePorts = [...new Set(ports.filter((port) => port > 0))];
  if (uniquePorts.length === 0) {
    return null;
  }

-  const command = [
-    '$ErrorActionPreference = "SilentlyContinue"',
-    '$ports = ($env:GENARRATIVE_QUERY_PORTS -split ",") | Where-Object { $_ }',
-    '$result = @()',
-    'foreach ($port in $ports) {',
-    '  $connection = Get-NetTCPConnection -State Listen -LocalPort ([int]$port) -ErrorAction SilentlyContinue | Select-Object -First 1',
-    '  if (-not $connection) { continue }',
-    '  $owner = Get-CimInstance Win32_Process -Filter ("ProcessId=" + $connection.OwningProcess) -ErrorAction SilentlyContinue',
-    '  $result += [pscustomobject]@{ port = [int]$port; processId = [int]$connection.OwningProcess; name = $owner.Name; executablePath = $owner.ExecutablePath; commandLine = $owner.CommandLine }',
-    '}',
-    'ConvertTo-Json -InputObject @($result) -Compress',
-  ].join('\n');
+  const knownCommandLines = {};
+  for (const [processId, record] of [...commandLineCache]) {
+    if (record && now() - record.at < commandLineTtlMs) {
+      knownCommandLines[processId] = record.commandLine;
+    } else {
+      commandLineCache.delete(processId);
+    }
+  }
+
+  const childEnv = {
+    ...env,
+    GENARRATIVE_QUERY_PORTS: uniquePorts.join(','),
+  };
+  if (Object.keys(knownCommandLines).length > 0) {
+    childEnv.GENARRATIVE_KNOWN_COMMAND_LINES =
+      JSON.stringify(knownCommandLines);
+  }

  const result = spawnImpl(
    'powershell.exe',
-    ['-NoProfile', '-ExecutionPolicy', 'Bypass', '-Command', command],
+    [
+      '-NoProfile',
+      '-ExecutionPolicy',
+      'Bypass',
+      '-Command',
+      windowsPortOwnerProbeCommand,
+    ],
    {
      encoding: 'utf8',
-      env: { ...env, GENARRATIVE_QUERY_PORTS: uniquePorts.join(',') },
+      env: childEnv,
      maxBuffer: 8 * 1024 * 1024,
    },
  );
@@ -240,9 +330,22 @@ function readWindowsPortOwnerIdentities(
  const owners = new Map();
  for (const entry of parseWindowsProcessSnapshot(result.stdout)) {
    const port = Number(entry?.port);
-    if (Number.isInteger(port) && port > 0) {
-      owners.set(port, entry);
+    if (!Number.isInteger(port) || port <= 0) {
+      continue;
    }
+    const processId = Number(entry?.processId);
+    if (
+      Number.isInteger(processId) &&
+      processId > 0 &&
+      typeof entry?.commandLine === 'string' &&
+      entry.commandLine
+    ) {
+      commandLineCache.set(processId, {
+        commandLine: entry.commandLine,
+        at: now(),
+      });
+    }
+    owners.set(port, entry);
  }
  return owners;
 }
@@ -879,10 +982,102 @@ async function startVite(apiTarget, endpoint = readAgcDevEndpoint()) {
  );
 }

+function readAdminWebEnabled(env = process.env) {
+  return String(env[agcDevAdminWebEnvKey] ?? '').trim() !== '0';
+}
+
+// 后台 Web 与 AGC Vite 一样直接由本启动器持有，不经过 `dev.mjs admin-web`：
+// 后者会整体重写 `.app/dev-stack.json`，把本次配套后端的状态覆盖掉。
+function startAdminWeb(
+  apiUrl,
+  endpoint,
+  { env = process.env, spawnImpl = spawnChild } = {},
+) {
+  return spawnImpl(
+    npm,
+    [
+      '--prefix',
+      '../..',
+      'exec',
+      'vite',
+      '--',
+      '--host',
+      endpoint.host,
+      '--port',
+      String(endpoint.port),
+      '--strictPort',
+    ],
+    {
+      cwd: adminWebDir,
+      env: {
+        ...env,
+        ADMIN_API_TARGET: apiUrl,
+        GENARRATIVE_API_TARGET: apiUrl,
+        GENARRATIVE_API_PORT: String(urlPort(apiUrl) || 8082),
+        ADMIN_WEB_BASE: endpoint.basePath,
+      },
+    },
+  );
+}
+
+function formatStartupSummary({
+  frontendUrl = '',
+  apiUrl = '',
+  adminWebUrl = '',
+  spacetimeUrl = '',
+  bgfilterWorkerUrl = '',
+} = {}) {
+  const segments = [
+    ['前端', frontendUrl],
+    ['后端', apiUrl],
+    ['后台', adminWebUrl],
+    ['数据库', spacetimeUrl],
+    ['bgfilter-worker', bgfilterWorkerUrl],
+  ]
+    .filter(([, value]) => Boolean(value))
+    .map(([label, value]) => `${label} ${value}`);
+  return `[ai-game-creator-shell] 启动汇总: ${segments.join(' | ')}`;
+}
+
+// 后台 Web 是可选联调服务：端口解析或启动失败只告警，不能阻断 AGC 客户端与配套后端。
+async function ensureAdminWeb({
+  apiUrl,
+  reservedPorts = [],
+  env = process.env,
+  enabled = readAdminWebEnabled(env),
+  resolveEndpoint = resolveAgcAdminWebEndpoint,
+  spawnAdminWeb = startAdminWeb,
+  waitForExit = waitForChildTermination,
+  warn = (message) => console.warn(message),
+} = {}) {
+  if (!enabled) {
+    return { endpoint: null, child: null };
+  }
+
+  try {
+    const endpoint = await resolveEndpoint({ env, reservedPorts });
+    const child = spawnAdminWeb(apiUrl, endpoint, { env });
+    waitForExit(child).then((failure) => {
+      warn(
+        `[ai-game-creator-shell] 后台 Web 已退出（${formatChildFailure(failure)}），AGC 继续运行。`,
+      );
+    });
+    return { endpoint, child };
+  } catch (error) {
+    warn(
+      `[ai-game-creator-shell] 后台 Web 未能启动（${
+        error instanceof Error ? error.message : String(error)
+      }），AGC 继续运行。`,
+    );
+    return { endpoint: null, child: null };
+  }
+}
+
 async function main() {
  let backendChild = null;
  let startedBackend = false;
  let viteChild = null;
+  let adminWebChild = null;
  let shutdownSignal = '';
  const signalHandlers = new Map();

@@ -905,6 +1100,7 @@ async function main() {
    const handler = () => {
      shutdownSignal = signal;
      stopChild(viteChild, signal);
+      stopChild(adminWebChild, signal);
      stopChild(backendChild, signal);
      // 立刻清扫，避免外层 taskkill /F 抢在 finally 之前把本进程杀掉。
      sweepStartedBackend();
@@ -937,6 +1133,25 @@ async function main() {
      throw new Error(`启动期收到 ${shutdownSignal}，已停止前端服务`);
    }

+    const adminWeb = await ensureAdminWeb({
+      apiUrl: backend.targets.apiUrl,
+      // AGC Vite 端口尚未监听，必须显式保留，避免被后台 Web 抢先占用。
+      reservedPorts: [endpoint.port],
+    });
+    adminWebChild = adminWeb.child;
+    if (shutdownSignal) {
+      throw new Error(`启动期收到 ${shutdownSignal}，已停止后台 Web`);
+    }
+    console.log(
+      formatStartupSummary({
+        frontendUrl: endpoint.url,
+        apiUrl: backend.targets.apiUrl,
+        adminWebUrl: adminWeb.endpoint?.url ?? '',
+        spacetimeUrl: backend.targets.spacetimeUrl,
+        bgfilterWorkerUrl: backend.targets.bgfilterWorkerUrl,
+      }),
+    );
+
    const children = [backendChild, viteChild].filter(Boolean);
    if (children.length === 0) {
      return 0;
@@ -946,10 +1161,12 @@ async function main() {
      children.map((child) => waitForChildTermination(child)),
    );
    stopChild(viteChild);
+    stopChild(adminWebChild);
    stopChild(backendChild);
    return failure.type === 'error' || failure.signal ? 1 : (failure.code ?? 0);
  } catch (error) {
    stopChild(viteChild);
+    stopChild(adminWebChild);
    stopChild(backendChild);
    console.error(
      `[ai-game-creator-shell] ${error instanceof Error ? error.message : String(error)}`,
@@ -958,6 +1175,7 @@ async function main() {
  } finally {
    await Promise.all([
      terminateChildTree(viteChild),
+      terminateChildTree(adminWebChild),
      terminateChildTree(backendChild),
    ]);
    sweepStartedBackend();
@@ -975,9 +1193,12 @@ function isDirectModuleExecution() {
 }

 export {
+  agcDevAdminWebEnvKey,
+  ensureAdminWeb,
  ensureBackend,
  formatChildFailure,
  formatOwnerLabel,
+  formatStartupSummary,
  isAiGameCreatorServer,
  isBackendReady,
  isDirectModuleExecution,
@@ -985,6 +1206,7 @@ export {
  isWorktreeApiServerOwner,
  isWorktreeSpacetimeOwner,
  preflightExistingVite,
+  readAdminWebEnabled,
  readBackendServiceFailure,
  readChildFailure,
  readExistingViteServer,
@@ -993,6 +1215,7 @@ export {
  resolveBackendTargetsFromState,
  runWindowsTaskkill,
  spawnChild,
+  startAdminWeb,
  stopChild,
  terminateChildTree,
  verifyAgcBackendOwnership,
@@ -16,7 +16,7 @@ mod design_runtime;
 mod design_tools;
 mod direct_codex_attachments;
 mod direct_codex_audit;
-mod direct_codex_references;
+mod direct_codex_user_item;
 mod direct_project_history;
 mod direct_project_turn_history;
 mod direct_runtime;
@@ -44,7 +44,7 @@ pub(crate) use codex_provider_proxy::*;
 pub(crate) use design_runtime::*;
 pub(crate) use direct_codex_attachments::*;
 pub(crate) use direct_codex_audit::*;
-pub(crate) use direct_codex_references::*;
+pub(crate) use direct_codex_user_item::*;
 pub(crate) use direct_project_history::*;
 pub(crate) use direct_project_turn_history::*;
 pub(crate) use direct_runtime::*;
@@ -0,0 +1,32 @@
+//! DirectProject 历史注入载荷的单一构造 seam。
+//!
+//! 历史读取与大小前置校验集中在这里；调用方只负责线程生命周期与 RPC 传输。
+
+use super::super::*;
+use super::direct_project_history_injection_oversize_error;
+use serde_json::Value;
+use std::path::Path;
+
+pub(super) fn build_direct_project_history_injection_params(
+    history_root: &Path,
+    thread_id: &str,
+) -> Result<Value, platform_llm::LlmError> {
+    let canonical_items = read_direct_project_history_items_at(history_root)
+        .map_err(platform_llm::LlmError::InvalidRequest)?;
+    let items = canonical_items
+        .iter()
+        .map(|item| {
+            direct_codex_user_item_to_response_item(history_root, item)
+                .map_err(platform_llm::LlmError::InvalidRequest)
+        })
+        .collect::<Result<Vec<_>, _>>()?;
+    let params = serde_json::json!({"threadId": thread_id, "items": items});
+    let payload_bytes = serde_json::to_vec(&params)
+        .map(|bytes| bytes.len().saturating_add(1))
+        .unwrap_or(usize::MAX);
+    // 注入前的前置校验：失败关闭并指名 itemId 与字节数，**不截断、不摘要、不改写**。
+    if let Some(error) = direct_project_history_injection_oversize_error(&params, payload_bytes) {
+        return Err(platform_llm::LlmError::InvalidRequest(error));
+    }
+    Ok(params)
+}
@@ -0,0 +1,50 @@
+//! DirectProject 线程池身份的 canonical 解析与摘要。
+
+use super::super::*;
+use sha2::{Digest, Sha256};
+
+pub(super) fn direct_codex_canonical_project_identity(
+    root: &std::path::Path,
+) -> Result<(std::path::PathBuf, String), String> {
+    let (canonical_root, _) = resolve_direct_codex_project_authority(root)?;
+    let manifest = read_manifest(&canonical_root.join(".agent/manifest.json"))
+        .map_err(|error| format!("读取 DirectProject 权威项目身份失败：{error}"))?;
+    let manifest_project_id = manifest.project_id.trim();
+    if manifest_project_id.is_empty() || manifest_project_id.chars().count() > 256 {
+        return Err("DirectProject manifest.projectId 不满足身份边界".to_string());
+    }
+    let path_identity = direct_codex_os_path_identity_bytes(&canonical_root);
+    Ok((
+        canonical_root,
+        direct_codex_project_identity_digest(&path_identity, manifest_project_id.as_bytes()),
+    ))
+}
+
+fn direct_codex_os_path_identity_bytes(path: &std::path::Path) -> Vec<u8> {
+    #[cfg(unix)]
+    {
+        use std::os::unix::ffi::OsStrExt;
+        return path.as_os_str().as_bytes().to_vec();
+    }
+    #[cfg(windows)]
+    {
+        use std::os::windows::ffi::OsStrExt;
+        let mut bytes = Vec::new();
+        for unit in path.as_os_str().encode_wide() {
+            bytes.extend_from_slice(&unit.to_le_bytes());
+        }
+        return bytes;
+    }
+    #[cfg(not(any(unix, windows)))]
+    path.as_os_str().to_string_lossy().as_bytes().to_vec()
+}
+
+fn direct_codex_project_identity_digest(path_identity: &[u8], project_id: &[u8]) -> String {
+    let mut digest = Sha256::new();
+    digest.update(b"genarrative-direct-project-identity.v1\0");
+    digest.update((path_identity.len() as u64).to_le_bytes());
+    digest.update(path_identity);
+    digest.update((project_id.len() as u64).to_le_bytes());
+    digest.update(project_id);
+    format!("{:x}", digest.finalize())
+}
@@ -10,6 +10,11 @@ use tokio::io::{AsyncBufRead, AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufR
 use tokio::sync::{mpsc, oneshot, Mutex, Notify};
 use uuid::Uuid;

+mod direct_project_history_wire;
+use direct_project_history_wire::build_direct_project_history_injection_params;
+mod direct_project_identity;
+use direct_project_identity::*;
+
 const GAME_CREATOR_CODEX_APP_SERVER_PROVIDER_ID: &str = "genarrative_agc";
 const GAME_CREATOR_CODEX_APP_SERVER_API_KEY_ENV: &str = "GENARRATIVE_AGC_CODEX_API_KEY";
 const GAME_CREATOR_CODEX_APP_SERVER_REMOTE_CONTROL_DISABLED_ENV: &str =
@@ -2620,6 +2625,7 @@ impl CodexAppServerConnection {
            request,
            None,
            None,
+            None,
            on_agent_message_delta,
            direct_observer,
            audit,
@@ -2634,6 +2640,7 @@ impl CodexAppServerConnection {
        request: LlmRunRequest,
        direct_history_root: Option<&std::path::Path>,
        direct_client_turn_id: Option<&str>,
+        direct_user_item: Option<&serde_json::Value>,
        mut on_agent_message_delta: Option<&mut (dyn FnMut(&platform_llm::LlmStreamDelta) + Send)>,
        mut direct_observer: Option<&mut (dyn FnMut(DirectCodexTurnObservation) + Send)>,
        mut audit: Option<&mut DirectCodexTurnAudit>,
@@ -2649,12 +2656,19 @@ impl CodexAppServerConnection {
                ));
            }
            if let Some(client_turn_id) = direct_client_turn_id {
-                let user_item = direct_project_local_message_item(
-                    "user",
-                    current_prompt,
-                    Some(&format!("direct-codex:{client_turn_id}:user")),
-                )
-                .map_err(platform_llm::LlmError::InvalidRequest)?;
+                let user_item = match direct_user_item {
+                    Some(item) => {
+                        direct_codex_user_item_to_response_item(history_root, item)
+                            .map_err(platform_llm::LlmError::InvalidRequest)?;
+                        item.clone()
+                    }
+                    None => direct_project_local_message_item(
+                        "user",
+                        current_prompt,
+                        Some(&format!("direct-codex:{client_turn_id}:user")),
+                    )
+                    .map_err(platform_llm::LlmError::InvalidRequest)?,
+                };
                append_direct_project_user_message_at(history_root, &user_item)
                    .map_err(platform_llm::LlmError::InvalidRequest)?;
            }
@@ -2664,24 +2678,14 @@ impl CodexAppServerConnection {
        let thread_id = thread_lease.thread_id.clone();
        if self.inner.workspace_mode == CodexAppServerWorkspaceMode::DirectProject {
            if thread_created {
-                let items = match read_direct_project_history_items_at(history_root) {
-                    Ok(items) => items,
-                    Err(error) => {
-                        self.release_thread(snapshot, &thread_id).await;
-                        return Err(platform_llm::LlmError::InvalidRequest(error));
-                    }
-                };
-                let params = serde_json::json!({"threadId": thread_id.clone(), "items": items});
-                let payload_bytes = serde_json::to_vec(&params)
-                    .map(|bytes| bytes.len().saturating_add(1))
-                    .unwrap_or(usize::MAX);
-                // 注入前的前置校验：失败关闭并指名 itemId 与字节数，**不截断、不摘要、不改写**。
-                if let Some(error) =
-                    direct_project_history_injection_oversize_error(&params, payload_bytes)
-                {
-                    self.release_thread(snapshot, &thread_id).await;
-                    return Err(platform_llm::LlmError::InvalidRequest(error));
-                }
+                let params =
+                    match build_direct_project_history_injection_params(history_root, &thread_id) {
+                        Ok(params) => params,
+                        Err(error) => {
+                            self.release_thread(snapshot, &thread_id).await;
+                            return Err(error);
+                        }
+                    };
                if let Err(error) = self.request("thread/inject_items", params).await {
                    self.release_thread(snapshot, &thread_id).await;
                    return Err(platform_llm::LlmError::Transport(error));
@@ -2829,6 +2833,8 @@ impl CodexAppServerConnection {
                            callback(&platform_llm::LlmStreamDelta {
                                accumulated_text: streamed_text.clone(),
                                delta_text: delta,
+                                accumulated_reasoning: String::new(),
+                                reasoning_delta: String::new(),
                                finish_reason: None,
                            });
                        }
@@ -3133,6 +3139,7 @@ fn parse_game_creator_codex_app_server_text(
        } else {
            String::new()
        },
+        reasoning: String::new(),
        finish_reason: Some("stop".to_string()),
        response_id: Some(thread_id.to_string()),
        usage: None,
@@ -3709,6 +3716,7 @@ pub(crate) async fn direct_game_creator_codex_chat_at(
        None,
        None,
        None,
+        None,
    )
    .await
 }
@@ -3726,56 +3734,11 @@ pub(crate) async fn direct_game_creator_codex_chat_at_with_observer(
        None,
        Some(observer),
        None,
+        None,
    )
    .await
 }

-fn direct_codex_canonical_project_identity(
-    root: &std::path::Path,
-) -> Result<(std::path::PathBuf, String), String> {
-    let (canonical_root, _) = resolve_direct_codex_project_authority(root)?;
-    let manifest = read_manifest(&canonical_root.join(".agent/manifest.json"))
-        .map_err(|error| format!("读取 DirectProject 权威项目身份失败：{error}"))?;
-    let manifest_project_id = manifest.project_id.trim();
-    if manifest_project_id.is_empty() || manifest_project_id.chars().count() > 256 {
-        return Err("DirectProject manifest.projectId 不满足身份边界".to_string());
-    }
-    let path_identity = direct_codex_os_path_identity_bytes(&canonical_root);
-    Ok((
-        canonical_root,
-        direct_codex_project_identity_digest(&path_identity, manifest_project_id.as_bytes()),
-    ))
-}
-
-fn direct_codex_os_path_identity_bytes(path: &std::path::Path) -> Vec<u8> {
-    #[cfg(unix)]
-    {
-        use std::os::unix::ffi::OsStrExt;
-        return path.as_os_str().as_bytes().to_vec();
-    }
-    #[cfg(windows)]
-    {
-        use std::os::windows::ffi::OsStrExt;
-        let mut bytes = Vec::new();
-        for unit in path.as_os_str().encode_wide() {
-            bytes.extend_from_slice(&unit.to_le_bytes());
-        }
-        return bytes;
-    }
-    #[cfg(not(any(unix, windows)))]
-    path.as_os_str().to_string_lossy().as_bytes().to_vec()
-}
-
-fn direct_codex_project_identity_digest(path_identity: &[u8], project_id: &[u8]) -> String {
-    let mut digest = Sha256::new();
-    digest.update(b"genarrative-direct-project-identity.v1\0");
-    digest.update((path_identity.len() as u64).to_le_bytes());
-    digest.update(path_identity);
-    digest.update((project_id.len() as u64).to_le_bytes());
-    digest.update(project_id);
-    format!("{:x}", digest.finalize())
-}
-
 pub(crate) async fn direct_game_creator_codex_chat_at_with_optional_observer(
    root: &std::path::Path,
    system_prompt: String,
@@ -3783,6 +3746,7 @@ pub(crate) async fn direct_game_creator_codex_chat_at_with_optional_observer(
    client_turn_id: Option<&str>,
    observer: Option<&mut (dyn FnMut(DirectCodexTurnObservation) + Send)>,
    audit: Option<&mut DirectCodexTurnAudit>,
+    direct_user_item: Option<serde_json::Value>,
 ) -> Result<String, String> {
    // Resolve project authority before deriving the pool/thread identity.  A
    // caller may hold a stable symlink path whose target changes between
@@ -3846,6 +3810,7 @@ pub(crate) async fn direct_game_creator_codex_chat_at_with_optional_observer(
            request,
            Some(&codex_root),
            effective_client_turn_id,
+            direct_user_item.as_ref(),
            None,
            observer,
            audit,
@@ -589,6 +589,7 @@ fn parse_game_creator_codex_cli_response(
        } else {
            String::new()
        },
+        reasoning: String::new(),
        finish_reason: Some("stop".to_string()),
        response_id,
        usage,
@@ -49,6 +49,18 @@ pub(crate) struct DesignView {
    messages: Vec<DesignMessage>,
    running: bool,
    can_retry: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    reasoning_text: Option<String>,
+    reasoning_entries: Vec<DesignReasoningEntry>,
+}
+
+#[derive(Clone, Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct DesignReasoningEntry {
+    id: String,
+    text: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    message_id: Option<String>,
 }

 #[derive(Clone, Debug, Serialize)]
@@ -65,6 +77,7 @@ pub(crate) struct DesignEvent {
 }

 fn design_view(session: &DesignSession, running: bool) -> DesignView {
+    let reasoning_entries = persisted_design_reasoning_entries(session);
    DesignView {
        session: DesignSessionSummary {
            session_id: session.session_id.clone(),
@@ -82,9 +95,124 @@ fn design_view(session: &DesignSession, running: bool) -> DesignView {
            && session.turn.as_ref().is_some_and(|turn| turn.pending)
            && session.pending_approval.is_none()
            && session.pending_clarification.is_none(),
+        reasoning_text: reasoning_entries.last().map(|entry| entry.text.clone()),
+        reasoning_entries,
    }
 }

+fn reasoning_text_from_history_item(item: &Value) -> Option<String> {
+    if item.get("type").and_then(Value::as_str) != Some("reasoning") {
+        return None;
+    }
+    let mut text = String::new();
+    if let Some(summary) = item.get("summary").and_then(Value::as_array) {
+        for part in summary {
+            if let Some(value) = part.get("text").and_then(Value::as_str) {
+                text.push_str(value.trim());
+            }
+        }
+    }
+    if let Some(content) = item.get("content").and_then(Value::as_array) {
+        for part in content {
+            let part_type = part.get("type").and_then(Value::as_str).unwrap_or_default();
+            if matches!(
+                part_type,
+                "reasoning" | "reasoning_content" | "reasoning_text" | "analysis" | "thinking"
+            ) {
+                if let Some(value) = part.get("text").and_then(Value::as_str) {
+                    text.push_str(value.trim());
+                }
+            }
+        }
+    }
+    (!text.trim().is_empty()).then_some(text)
+}
+
+fn persisted_design_reasoning_entries(session: &DesignSession) -> Vec<DesignReasoningEntry> {
+    // Responses history contains tool-only provider responses. Their reasoning is
+    // followed by function calls and only the next provider response may contain
+    // visible assistant text, so pairing on the next `message` item makes the
+    // earlier reasoning look like an orphan and moves it to the bottom of the UI.
+    // Both persisted streams retain user-turn boundaries; pair reasoning and
+    // visible assistant messages by their response order within each turn.
+    let mut assistant_groups: Vec<Vec<String>> = vec![Vec::new()];
+    for message in &session.messages {
+        if message.role == "user" {
+            assistant_groups.push(Vec::new());
+        } else if message.role == "assistant" {
+            assistant_groups
+                .last_mut()
+                .expect("assistant group always exists")
+                .push(message.id.clone());
+        }
+    }
+    let mut entries = Vec::new();
+    let mut group_index = 0;
+    let mut assistant_index = 0;
+    let mut sequence = 0_u64;
+    let mut current_reasoning = Vec::new();
+    let mut pending_reasoning = Vec::new();
+    let mut saw_response_output = false;
+
+    for item in &session.history {
+        if item.get("role").and_then(Value::as_str) == Some("user") {
+            if !pending_reasoning.is_empty() || !current_reasoning.is_empty() {
+                pending_reasoning.append(&mut current_reasoning);
+            }
+            group_index += 1;
+            assistant_index = 0;
+            saw_response_output = false;
+            continue;
+        }
+        if item.get("type").and_then(Value::as_str) == Some("reasoning") {
+            if saw_response_output {
+                pending_reasoning.append(&mut current_reasoning);
+                saw_response_output = false;
+            }
+            if let Some(text) = reasoning_text_from_history_item(item) {
+                sequence += 1;
+                current_reasoning.push(DesignReasoningEntry {
+                    id: item
+                        .get("id")
+                        .and_then(Value::as_str)
+                        .map(str::to_string)
+                        .unwrap_or_else(|| format!("reasoning-{sequence}")),
+                    text,
+                    message_id: None,
+                });
+            }
+            continue;
+        }
+        if item.get("role").and_then(Value::as_str) == Some("assistant")
+            || item.get("type").and_then(Value::as_str) == Some("message")
+        {
+            pending_reasoning.extend(current_reasoning.drain(..));
+            let assistant_id = assistant_groups
+                .get(group_index)
+                .and_then(|ids| ids.get(assistant_index))
+                .cloned();
+            assistant_index += 1;
+            for mut entry in pending_reasoning.drain(..) {
+                entry.message_id = assistant_id.clone();
+                entries.push(entry);
+            }
+            saw_response_output = false;
+        } else if item.get("type").is_some() {
+            saw_response_output = true;
+        }
+    }
+    pending_reasoning.append(&mut current_reasoning);
+    let fallback_id = assistant_groups
+        .get(group_index)
+        .and_then(|ids| ids.last())
+        .cloned();
+    for mut entry in pending_reasoning {
+        entry.message_id = fallback_id.clone();
+        entries.push(entry);
+    }
+    entries
+}
+
 fn design_event(
    root: &Path,
    turn_id: &str,
@@ -104,6 +232,17 @@ fn design_event(
    }
 }

+fn design_reasoning_event(
+    root: &Path,
+    turn_id: &str,
+    id: Option<&str>,
+    reasoning: String,
+) -> DesignEvent {
+    let mut event = design_event(root, turn_id, "reasoning", id, None, None);
+    event.reasoning_text = Some(reasoning);
+    event
+}
+
 fn design_project_id(root: &Path) -> Result<String, String> {
    validate_project_root(root)?;
    Ok(read_existing_manifest_for_project(root)?.project_id)
@@ -462,6 +601,7 @@ fn build_design_request(
        .with_tool_choice(platform_llm::LlmToolChoice::Auto)
        .with_web_search(false);
    apply_game_creator_llm_reasoning_effort(request, llm)
+        .map(|request| request.with_reasoning_capture(true))
 }

 // 调试队列只接收副本，写盘慢或失败时丢弃，不参与会话恢复。
@@ -548,8 +688,15 @@ async fn request_design_provider(
            Some(String::new()),
            None,
        ));
+        emit(design_reasoning_event(
+            root,
+            &turn_id,
+            Some(&message_id),
+            String::new(),
+        ));
        let result = if llm.stream {
            let mut stream_sequence = 0_u64;
+            let mut emitted_reasoning = String::new();
            client
                .stream_run(request.clone(), |delta| {
                    stream_sequence = stream_sequence.saturating_add(1);
@@ -565,18 +712,33 @@ async fn request_design_provider(
                            "model": llm.model,
                            "deltaChars": delta.delta_text.chars().count(),
                            "accumulatedChars": delta.accumulated_text.chars().count(),
+                            "reasoningDeltaChars": delta.reasoning_delta.chars().count(),
+                            "reasoningAccumulatedChars": delta.accumulated_reasoning.chars().count(),
                            "deltaText": delta.delta_text,
                            "finishReason": delta.finish_reason,
                        }),
                    );
-                    emit(design_event(
-                        root,
-                        &turn_id,
-                        "text",
-                        Some(&message_id),
-                        Some(delta.accumulated_text.clone()),
-                        None,
-                    ));
+                    if !delta.delta_text.is_empty() || delta.finish_reason.is_some() {
+                        emit(design_event(
+                            root,
+                            &turn_id,
+                            "text",
+                            Some(&message_id),
+                            Some(delta.accumulated_text.clone()),
+                            None,
+                        ));
+                    }
+                    if !delta.reasoning_delta.is_empty()
+                        || delta.accumulated_reasoning != emitted_reasoning
+                    {
+                        emit(design_reasoning_event(
+                            root,
+                            &turn_id,
+                            Some(&message_id),
+                            delta.accumulated_reasoning.clone(),
+                        ));
+                        emitted_reasoning = delta.accumulated_reasoning.clone();
+                    }
                })
                .await
        } else {
@@ -584,6 +746,14 @@ async fn request_design_provider(
        };
        match result {
            Ok(response) => {
+                if !response.reasoning.is_empty() {
+                    emit(design_reasoning_event(
+                        root,
+                        &turn_id,
+                        Some(&message_id),
+                        response.reasoning.clone(),
+                    ));
+                }
                design_debug(
                    root,
                    "response",
@@ -606,6 +776,12 @@ async fn request_design_provider(
                    || game_creator_agent_runtime_transient_provider_error_kind(&error, false)
                        .is_none()
                {
+                    emit(design_reasoning_event(
+                        root,
+                        &turn_id,
+                        Some(&message_id),
+                        String::new(),
+                    ));
                    return Err(detail);
                }
                tokio::time::sleep(Duration::from_millis(
@@ -654,8 +830,24 @@ async fn request_scripted_design_provider(
            Some(String::new()),
            None,
        ));
+        emit(design_reasoning_event(
+            root,
+            &turn_id,
+            Some(&message_id),
+            String::new(),
+        ));
        match fake_provider::take() {
-            Some(Ok(response)) => return Ok(response),
+            Some(Ok(response)) => {
+                if !response.reasoning.is_empty() {
+                    emit(design_reasoning_event(
+                        root,
+                        &turn_id,
+                        Some(&message_id),
+                        response.reasoning.clone(),
+                    ));
+                }
+                return Ok(response);
+            }
            Some(Err(error)) => {
                let detail = redact_agent_runtime_error(
                    root,
@@ -666,10 +858,24 @@ async fn request_scripted_design_provider(
                    || game_creator_agent_runtime_transient_provider_error_kind(&error, false)
                        .is_none()
                {
+                    emit(design_reasoning_event(
+                        root,
+                        &turn_id,
+                        Some(&message_id),
+                        String::new(),
+                    ));
                    return Err(detail);
                }
            }
-            None => return Err("假 Provider 脚本耗尽".into()),
+            None => {
+                emit(design_reasoning_event(
+                    root,
+                    &turn_id,
+                    Some(&message_id),
+                    String::new(),
+                ));
+                return Err("假 Provider 脚本耗尽".into());
+            }
        }
    }
    unreachable!()
@@ -940,7 +1146,9 @@ pub(crate) fn set_design_agent_runtime_mode(
        "design.runtime-mode",
    )?;
    if active_runtime.trim() == "game" {
-        crate::assets::register_design_artifacts_at(root)?;
+        if crate::assets::register_design_artifacts_at(root)? {
+            advance_agent_runtime_project_revision_locked(root)?;
+        }
    }
    write_design_runtime_mode(root, active_runtime.trim())
 }
@@ -1176,6 +1384,38 @@ mod tests {
        let error = ensure_design_runtime_active(root).expect_err("game mode must reject design");
        assert!(error.contains("游戏运行态"));
    }
+
+    #[test]
+    fn switching_to_game_pairs_design_artifact_registration_with_revision() {
+        let temporary = tempfile::tempdir().expect("create runtime mode root");
+        let root = temporary.path();
+        crate::project::init_local_game_project_at(root, "design-switch-test", "策划切换")
+            .expect("init project");
+        fs::create_dir_all(root.join("design_artifacts/project")).expect("create artifacts");
+        fs::write(root.join("design_artifacts/project/design.md"), "设计内容")
+            .expect("write artifact");
+
+        let before = read_game_creator_agent_runtime_project_revision(root)
+            .expect("read initial revision")
+            .revision;
+        assert_eq!(
+            set_design_agent_runtime_mode(root.to_string_lossy().into_owned(), "game".to_string(),)
+                .expect("switch to game")
+                .active_runtime,
+            "game"
+        );
+        let after = read_game_creator_agent_runtime_project_revision(root)
+            .expect("read committed revision")
+            .revision;
+        assert_eq!(after, before + 1);
+
+        set_design_agent_runtime_mode(root.to_string_lossy().into_owned(), "game".to_string())
+            .expect("repeat switch to game");
+        let repeated = read_game_creator_agent_runtime_project_revision(root)
+            .expect("read repeated revision")
+            .revision;
+        assert_eq!(repeated, after);
+    }
    use serde_json::json;
    use std::fs;

@@ -1285,6 +1525,7 @@ mod tests {
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: "fake-design".into(),
            text: text.into(),
+            reasoning: String::new(),
            finish_reason: Some(if calls.is_empty() {
                "stop".into()
            } else {
@@ -1345,6 +1586,110 @@ mod tests {
            .clone()
    }

+    #[test]
+    fn design_request_enables_reasoning_capture_only_for_design_runtime() {
+        let session = new_design_session("project", "quality");
+        let request = build_design_request(&session, &pack(), &GameCreatorLlmConfig::default())
+            .expect("design request");
+        assert!(request.capture_reasoning);
+    }
+
+    #[test]
+    fn persisted_reasoning_follows_response_order_across_tool_only_responses() {
+        let mut session = new_design_session("project", "quality");
+        session.messages = vec![
+            DesignMessage {
+                id: "turn:user".into(),
+                role: "user".into(),
+                text: "需求".into(),
+            },
+            DesignMessage {
+                id: "call-1:tool".into(),
+                role: "tool".into(),
+                text: "读取资源".into(),
+            },
+            DesignMessage {
+                id: "turn:response:0".into(),
+                role: "assistant".into(),
+                text: "给出方案".into(),
+            },
+        ];
+        session.history = vec![
+            json!({"role":"user", "content":"需求"}),
+            json!({"type":"reasoning", "id":"r1", "content":[{"type":"reasoning_text", "text":"第一段思考"}]}),
+            json!({"type":"function_call", "call_id":"call-1", "name":"read_resource", "arguments":"{}"}),
+            json!({"type":"reasoning", "id":"r2", "content":[{"type":"reasoning_text", "text":"第二段思考"}]}),
+            json!({"type":"message", "role":"assistant", "content":[{"type":"output_text", "text":"给出方案"}]}),
+        ];
+
+        let entries = persisted_design_reasoning_entries(&session);
+        assert_eq!(
+            entries
+                .iter()
+                .map(|entry| (entry.id.as_str(), entry.message_id.as_deref()))
+                .collect::<Vec<_>>(),
+            vec![
+                ("r1", Some("turn:response:0")),
+                ("r2", Some("turn:response:0")),
+            ]
+        );
+    }
+
+    #[tokio::test(flavor = "current_thread")]
+    async fn scripted_design_provider_emits_reasoning_without_persisting_it() {
+        let (_temp, root, _resources) = init_design_project();
+        let mut session = new_design_session("design-fake", "quality");
+        begin_design_turn(&mut session, "turn-reasoning");
+        let mut response = fake_response("reasoning", "正文", Vec::new());
+        response.reasoning = "先分析需求，再组织方案。".into();
+        let _fake = fake_provider::install(vec![Ok(response)], 0);
+        let mut events = Vec::new();
+        let response =
+            request_scripted_design_provider(&root, &mut session, &mut |event| events.push(event))
+                .await
+                .expect("scripted provider");
+
+        let reasoning_events = events
+            .iter()
+            .filter_map(|event| event.reasoning_text.as_deref())
+            .collect::<Vec<_>>();
+        assert_eq!(reasoning_events, vec!["", "先分析需求，再组织方案。"]);
+        assert_eq!(response.text, "正文");
+        assert!(session.history.is_empty());
+    }
+
+    #[tokio::test(flavor = "current_thread")]
+    async fn scripted_design_provider_retry_clears_previous_reasoning_attempt() {
+        let (_temp, root, _resources) = init_design_project();
+        let mut session = new_design_session("design-fake", "quality");
+        begin_design_turn(&mut session, "turn-reasoning-retry");
+        let mut response = fake_response("reasoning-retry", "重试后的正文", Vec::new());
+        response.reasoning = "重试后的推理".into();
+        let _fake = fake_provider::install(
+            vec![
+                Err(platform_llm::LlmError::Upstream {
+                    status_code: 503,
+                    message: "busy".into(),
+                }),
+                Ok(response),
+            ],
+            1,
+        );
+        let mut events = Vec::new();
+        let response =
+            request_scripted_design_provider(&root, &mut session, &mut |event| events.push(event))
+                .await
+                .expect("scripted retry provider");
+
+        let reasoning_events = events
+            .iter()
+            .filter_map(|event| event.reasoning_text.as_deref())
+            .collect::<Vec<_>>();
+        assert_eq!(reasoning_events, vec!["", "", "重试后的推理"]);
+        assert_eq!(response.text, "重试后的正文");
+        assert!(session.history.is_empty());
+    }
+
    #[tokio::test(flavor = "current_thread")]
    async fn fake_provider_walks_five_phases_and_enters_consultant() {
        let (_temp, root, resources) = init_design_project();
@@ -1,382 +0,0 @@
-use super::*;
-
-pub(crate) const MAX_DIRECT_CODEX_REFERENCES: usize = 32;
-const MAX_DIRECT_CODEX_REFERENCE_ID_CHARS: usize = 200;
-const MAX_DIRECT_CODEX_REFERENCE_LABEL_CHARS: usize = 160;
-const MAX_DIRECT_CODEX_REFERENCE_SOURCE_CHARS: usize = 32;
-const MAX_DIRECT_CODEX_REFERENCE_ELEMENT_CHARS: usize = 80;
-const MAX_DIRECT_CODEX_REFERENCE_TEXT_CHARS: usize = 240;
-
-const DIRECT_CODEX_REFERENCE_HEADER: &str =
-    "[本轮用户引用素材：以下均为当前项目已确认的安全引用。请使用稳定资源 ID 和项目相对路径读取，不要读取或输出其它路径。]";
-
-#[derive(Clone, Debug, serde::Deserialize)]
-#[serde(rename_all = "camelCase", tag = "type")]
-pub(crate) enum DirectCodexTurnReference {
-    #[serde(rename = "resource")]
-    Resource(DirectCodexResourceReference),
-    #[serde(rename = "runtime-region")]
-    RuntimeRegion(DirectCodexRuntimeRegionReference),
-}
-
-#[derive(Clone, Debug, serde::Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub(crate) struct DirectCodexResourceReference {
-    pub(crate) resource_id: String,
-    #[serde(default)]
-    pub(crate) label: Option<String>,
-    #[serde(default)]
-    pub(crate) source: Option<String>,
-}
-
-#[derive(Clone, Debug, serde::Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub(crate) struct DirectCodexRuntimeRegionReference {
-    #[serde(default)]
-    pub(crate) label: Option<String>,
-    #[serde(default)]
-    pub(crate) run_id: Option<String>,
-    #[serde(default)]
-    pub(crate) version_id: Option<String>,
-    #[serde(default)]
-    pub(crate) element_tag: Option<String>,
-    #[serde(default)]
-    pub(crate) element_role: Option<String>,
-    #[serde(default)]
-    pub(crate) text: Option<String>,
-    #[serde(default)]
-    pub(crate) width: Option<f64>,
-    #[serde(default)]
-    pub(crate) height: Option<f64>,
-    #[serde(default)]
-    pub(crate) resource_ids: Vec<String>,
-}
-
-fn sanitize_reference_text(value: &str, max_chars: usize) -> Option<String> {
-    let sanitized = value
-        .trim()
-        .chars()
-        .filter(|character| !character.is_control())
-        .take(max_chars)
-        .collect::<String>();
-    if sanitized.is_empty() {
-        None
-    } else {
-        Some(sanitized)
-    }
-}
-
-fn sanitize_reference_label(value: Option<&str>) -> Option<String> {
-    value.and_then(|value| sanitize_reference_text(value, MAX_DIRECT_CODEX_REFERENCE_LABEL_CHARS))
-}
-
-fn sanitize_reference_source(value: Option<&str>) -> Option<String> {
-    let value = sanitize_reference_text(value?, MAX_DIRECT_CODEX_REFERENCE_SOURCE_CHARS)?;
-    if value
-        .chars()
-        .all(|character| character.is_ascii_alphanumeric() || matches!(character, '-' | '_' | '.'))
-    {
-        Some(value)
-    } else {
-        None
-    }
-}
-
-fn sanitize_reference_element(value: Option<&str>) -> Option<String> {
-    let value = sanitize_reference_text(value?, MAX_DIRECT_CODEX_REFERENCE_ELEMENT_CHARS)?;
-    if value
-        .chars()
-        .all(|character| character.is_ascii_alphanumeric() || matches!(character, '-' | '_' | '.'))
-    {
-        Some(value)
-    } else {
-        None
-    }
-}
-
-fn sanitize_reference_dimension(value: Option<f64>) -> Option<u32> {
-    value
-        .filter(|value| value.is_finite() && *value > 0.0)
-        .map(|value| value.round().clamp(1.0, 100_000.0) as u32)
-}
-
-fn asset_display_label(asset: &GameCreationAppAssetManifestEntry) -> String {
-    let basename = asset
-        .local_path
-        .rsplit(['/', '\\'])
-        .next()
-        .unwrap_or(&asset.id);
-    let without_extension = basename
-        .rsplit_once('.')
-        .map(|(name, _)| name)
-        .unwrap_or(basename)
-        .trim();
-    if without_extension.is_empty() {
-        asset.id.clone()
-    } else {
-        without_extension
-            .chars()
-            .filter(|character| !character.is_control())
-            .take(MAX_DIRECT_CODEX_REFERENCE_LABEL_CHARS)
-            .collect()
-    }
-}
-
-fn validate_resource_reference_id(value: &str) -> Result<String, String> {
-    let resource_id = value.trim();
-    if resource_id.is_empty()
-        || resource_id.chars().count() > MAX_DIRECT_CODEX_REFERENCE_ID_CHARS
-        || resource_id.chars().any(char::is_control)
-    {
-        return Err("引用的素材 ID 无效，请移除后重新选择".to_string());
-    }
-    Ok(resource_id.to_string())
-}
-
-fn render_resource_reference_line(
-    manifest: &GameCreationAppManifest,
-    reference: &DirectCodexResourceReference,
-) -> Result<String, String> {
-    let resource_id = validate_resource_reference_id(&reference.resource_id)?;
-    let asset = manifest
-        .assets
-        .iter()
-        .find(|asset| asset.id == resource_id)
-        .ok_or_else(|| "引用的素材已不存在，请移除后重新选择".to_string())?;
-    let local_path = sanitize_attachment_local_path(&asset.local_path)
-        .ok_or_else(|| "引用的素材路径无效，请移除后重新选择".to_string())?;
-    let label = sanitize_reference_label(reference.label.as_deref())
-        .unwrap_or_else(|| asset_display_label(asset));
-    let source = sanitize_reference_source(reference.source.as_deref())
-        .unwrap_or_else(|| "unknown".to_string());
-    Ok(format!(
-        "- 素材 ID：{resource_id}；名称：{label}；类型：{}；媒体类型：{}；项目路径：{local_path}；来源：{source}",
-        asset.kind, asset.media_type
-    ))
-}
-
-fn render_runtime_region_reference_line(
-    manifest: &GameCreationAppManifest,
-    reference: &DirectCodexRuntimeRegionReference,
-) -> Result<String, String> {
-    let label = sanitize_reference_label(reference.label.as_deref())
-        .unwrap_or_else(|| "运行画面区域".to_string());
-    let run_id = sanitize_reference_source(reference.run_id.as_deref());
-    let version_id = sanitize_reference_source(reference.version_id.as_deref());
-    let element_tag = sanitize_reference_element(reference.element_tag.as_deref());
-    let element_role = sanitize_reference_element(reference.element_role.as_deref());
-    let text = reference
-        .text
-        .as_deref()
-        .and_then(|value| sanitize_reference_text(value, MAX_DIRECT_CODEX_REFERENCE_TEXT_CHARS));
-    let width = sanitize_reference_dimension(reference.width);
-    let height = sanitize_reference_dimension(reference.height);
-
-    // `resourceIds` 是本模块唯一由客户端直接给出、且自身还是一条列表的字段：条数不设界时，
-    // 每个 id 都要扫一遍 manifest（O(assets)），注入提示词的 `关联素材 ID：…` 行也会跟着无界
-    // 变长（最终只被 32 MiB 写入护栏拦下，变成一条和原因无关的连接级错误）。这里按模块的
-    // 失败关闭口径直接拒绝超限，而不是静默丢掉用户选中的关联。
-    if reference.resource_ids.len() > MAX_DIRECT_CODEX_REFERENCES {
-        return Err(format!(
-            "运行画面区域一次最多关联 {MAX_DIRECT_CODEX_REFERENCES} 个素材，请重新点选"
-        ));
-    }
-    let mut related_resource_ids = Vec::new();
-    for resource_id in &reference.resource_ids {
-        let resource_id = validate_resource_reference_id(resource_id)?;
-        if !manifest.assets.iter().any(|asset| asset.id == resource_id) {
-            return Err("运行画面引用的素材已变化，请重新点选".to_string());
-        }
-        // 去重：同一个 id 在注入提示词里重复出现没有信息量，只是把行撑长。
-        // 条数已按上限收口，所以这里的逐项比较不会退化成大面积二次扫描。
-        if !related_resource_ids.contains(&resource_id) {
-            related_resource_ids.push(resource_id);
-        }
-    }
-
-    let mut parts = vec![format!("名称：{label}")];
-    if let Some(run_id) = run_id {
-        parts.push(format!("运行标识：{run_id}"));
-    }
-    if let Some(version_id) = version_id {
-        parts.push(format!("版本标识：{version_id}"));
-    }
-    if let Some(element_tag) = element_tag {
-        parts.push(format!("元素：{element_tag}"));
-    }
-    if let Some(element_role) = element_role {
-        parts.push(format!("角色：{element_role}"));
-    }
-    if let Some(text) = text {
-        parts.push(format!("文本摘要：{text}"));
-    }
-    if let (Some(width), Some(height)) = (width, height) {
-        parts.push(format!("尺寸：{width}x{height}"));
-    }
-    if !related_resource_ids.is_empty() {
-        parts.push(format!("关联素材 ID：{}", related_resource_ids.join(",")));
-    }
-    Ok(format!("- 运行画面区域：{}", parts.join("；")))
-}
-
-pub(crate) fn render_direct_codex_references_section(
-    root: &Path,
-    references: &[DirectCodexTurnReference],
-) -> Result<Option<String>, String> {
-    if references.is_empty() {
-        return Ok(None);
-    }
-    if references.len() > MAX_DIRECT_CODEX_REFERENCES {
-        return Err(format!("一次最多引用 {MAX_DIRECT_CODEX_REFERENCES} 个素材"));
-    }
-    let manifest = read_manifest_for_project(root)?;
-    let mut lines = Vec::with_capacity(references.len());
-    for reference in references {
-        lines.push(match reference {
-            DirectCodexTurnReference::Resource(reference) => {
-                render_resource_reference_line(&manifest, reference)?
-            }
-            DirectCodexTurnReference::RuntimeRegion(reference) => {
-                render_runtime_region_reference_line(&manifest, reference)?
-            }
-        });
-    }
-    Ok(Some(
-        std::iter::once(DIRECT_CODEX_REFERENCE_HEADER.to_string())
-            .chain(lines)
-            .collect::<Vec<_>>()
-            .join("\n"),
-    ))
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    fn fixture_project() -> tempfile::TempDir {
-        let directory = tempfile::tempdir().expect("temp project");
-        let root = directory.path();
-        std::fs::create_dir_all(root.join(".agent")).expect("create agent dir");
-        let mut manifest = new_game_creation_app_manifest("project-1", "测试项目");
-        manifest.assets.push(GameCreationAppAssetManifestEntry {
-            id: "asset-hero".to_string(),
-            kind: "character".to_string(),
-            media_type: "image/png".to_string(),
-            local_path: "assets/hero.png".to_string(),
-            source: GameCreationAppAssetSource {
-                kind: GameCreationAppAssetSourceKind::Uploaded,
-                canvas_project_id: None,
-                resource_id: None,
-                asset_object_id: None,
-                task_id: None,
-                prompt: None,
-                model: None,
-                generation_route: None,
-                generation_kind: None,
-                reference_resource_ids: Vec::new(),
-            },
-            image_sequence_frames: None,
-            image_sequence_duration_ms: None,
-            category: game_creation_app_asset_category_for_kind("character"),
-            tags: Vec::new(),
-        });
-        write_manifest(&root.join(".agent/manifest.json"), &manifest).expect("write manifest");
-        directory
-    }
-
-    #[test]
-    fn resource_reference_uses_manifest_identity_and_never_accepts_client_paths() {
-        let project = fixture_project();
-        let reference: DirectCodexTurnReference = serde_json::from_str(
-            r#"{"type":"resource","resourceId":"asset-hero","label":"主角","source":"asset-picker","localPath":"C:\\secret.png"}"#,
-        )
-        .expect("reference json");
-        let section = render_direct_codex_references_section(
-            project.path(),
-            std::slice::from_ref(&reference),
-        )
-        .expect("render")
-        .expect("section");
-        assert!(section.contains("素材 ID：asset-hero"));
-        assert!(section.contains("名称：主角"));
-        assert!(section.contains("项目路径：assets/hero.png"));
-        assert!(!section.contains("C:\\secret.png"));
-    }
-
-    #[test]
-    fn deleted_resource_fails_closed() {
-        let project = fixture_project();
-        let reference: DirectCodexTurnReference = serde_json::from_str(
-            r#"{"type":"resource","resourceId":"asset-missing","label":"不存在"}"#,
-        )
-        .expect("reference json");
-        let error = render_direct_codex_references_section(
-            project.path(),
-            std::slice::from_ref(&reference),
-        )
-        .expect_err("missing resource");
-        assert_eq!(error, "引用的素材已不存在，请移除后重新选择");
-    }
-
-    #[test]
-    fn runtime_region_keeps_only_safe_summary_and_existing_resource_ids() {
-        let project = fixture_project();
-        let reference: DirectCodexTurnReference = serde_json::from_str(
-            r#"{"type":"runtime-region","label":"开始按钮","runId":"run-1","elementTag":"button","elementRole":"button","text":"开始游戏","width":120.4,"height":40.2,"resourceIds":["asset-hero"],"html":"<button onclick=secret>"}"#,
-        )
-        .expect("reference json");
-        let section = render_direct_codex_references_section(
-            project.path(),
-            std::slice::from_ref(&reference),
-        )
-        .expect("render")
-        .expect("section");
-        assert!(section.contains("运行画面区域：名称：开始按钮"));
-        assert!(section.contains("文本摘要：开始游戏"));
-        assert!(section.contains("尺寸：120x40"));
-        assert!(section.contains("关联素材 ID：asset-hero"));
-        assert!(!section.contains("onclick"));
-        assert!(!section.contains("secret"));
-    }
-
-    #[test]
-    fn runtime_region_dedupes_and_bounds_related_resource_ids() {
-        let project = fixture_project();
-        // 同一个 id 重复出现只应产生一条关联。
-        let duplicated: DirectCodexTurnReference = serde_json::from_str(
-            r#"{"type":"runtime-region","label":"开始按钮","resourceIds":["asset-hero","asset-hero","  asset-hero  "],"text":"开始游戏"}"#,
-        )
-        .expect("reference json");
-        let section = render_direct_codex_references_section(
-            project.path(),
-            std::slice::from_ref(&duplicated),
-        )
-        .expect("render")
-        .expect("section");
-        assert!(
-            section.contains("关联素材 ID：asset-hero\n")
-                || section.trim_end().ends_with("关联素材 ID：asset-hero"),
-            "{section}"
-        );
-        assert!(
-            !section.contains("asset-hero,"),
-            "重复 id 不得在注入提示词里重复出现：{section}"
-        );
-
-        // 超出上限直接失败关闭：不能按对方给的长度注入提示词。
-        let oversized_ids = (0..MAX_DIRECT_CODEX_REFERENCES + 1)
-            .map(|_| "\"asset-hero\"".to_string())
-            .collect::<Vec<_>>()
-            .join(",");
-        let oversized: DirectCodexTurnReference = serde_json::from_str(&format!(
-            r#"{{"type":"runtime-region","label":"开始按钮","resourceIds":[{oversized_ids}]}}"#
-        ))
-        .expect("reference json");
-        let error = render_direct_codex_references_section(
-            project.path(),
-            std::slice::from_ref(&oversized),
-        )
-        .expect_err("oversized resource id list must fail closed");
-        assert!(error.contains("最多关联"), "{error}");
-    }
-}
@@ -0,0 +1,15 @@
+//! DirectProject user input 的 canonical Response item 深模块。
+
+mod model;
+mod validation;
+mod wire;
+
+pub(crate) use model::{
+    DirectCodexUserContentPart, DirectCodexUserItem, DirectCodexUserMessageItem,
+    DirectCodexUserRole, DirectCodexUserRuntimeRegionPart,
+};
+pub(crate) use validation::validate_direct_codex_user_item;
+pub(crate) use wire::{
+    direct_codex_user_item_to_prompt, direct_codex_user_item_to_prompt_with_attachments,
+    direct_codex_user_item_to_response_item, direct_codex_user_item_to_wire_input,
+};
@@ -0,0 +1,118 @@
+use serde::{Deserialize, Serialize};
+use ts_rs::TS;
+
+/// DirectProject 本轮 user input 的唯一结构化入口。
+#[derive(Clone, Debug, Deserialize, Serialize, TS)]
+#[serde(tag = "type", deny_unknown_fields)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/features/project-workspace/generated/"))]
+pub(crate) enum DirectCodexUserItem {
+    #[serde(rename = "message")]
+    Message(DirectCodexUserMessageItem),
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize, TS)]
+#[serde(rename_all = "camelCase", deny_unknown_fields)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/features/project-workspace/generated/"))]
+pub(crate) struct DirectCodexUserMessageItem {
+    pub(crate) role: DirectCodexUserRole,
+    pub(crate) content: Vec<DirectCodexUserContentPart>,
+    pub(crate) id: String,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize, TS)]
+#[serde(rename_all = "lowercase")]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/features/project-workspace/generated/"))]
+pub(crate) enum DirectCodexUserRole {
+    User,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize, TS)]
+#[serde(tag = "type", rename_all_fields = "camelCase", deny_unknown_fields)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/features/project-workspace/generated/"))]
+pub(crate) enum DirectCodexUserContentPart {
+    #[serde(rename = "input_text")]
+    InputText { text: String },
+    #[serde(rename = "agc_resource_reference")]
+    AgcResourceReference { resource_id: String },
+    #[serde(rename = "agc_runtime_region_reference")]
+    AgcRuntimeRegionReference(DirectCodexUserRuntimeRegionPart),
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize, TS)]
+#[serde(rename_all = "camelCase", deny_unknown_fields)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/features/project-workspace/generated/"))]
+pub(crate) struct DirectCodexUserRuntimeRegionPart {
+    pub(crate) label: String,
+    #[serde(default)]
+    pub(crate) run_id: Option<String>,
+    #[serde(default)]
+    pub(crate) version_id: Option<String>,
+    #[serde(default)]
+    pub(crate) element_tag: Option<String>,
+    #[serde(default)]
+    pub(crate) element_role: Option<String>,
+    #[serde(default)]
+    pub(crate) text: Option<String>,
+    #[serde(default)]
+    pub(crate) width: Option<f64>,
+    #[serde(default)]
+    pub(crate) height: Option<f64>,
+    #[serde(default)]
+    pub(crate) resource_ids: Vec<String>,
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use serde_json::json;
+
+    #[test]
+    fn resource_reference_serializes_with_only_camel_case_resource_id() {
+        let item = DirectCodexUserItem::Message(DirectCodexUserMessageItem {
+            role: DirectCodexUserRole::User,
+            content: vec![DirectCodexUserContentPart::AgcResourceReference {
+                resource_id: "asset-hero".to_string(),
+            }],
+            id: "turn-1".to_string(),
+        });
+        assert_eq!(
+            serde_json::to_value(item).expect("serialize user item"),
+            json!({
+                "type": "message",
+                "role": "user",
+                "content": [{
+                    "type": "agc_resource_reference",
+                    "resourceId": "asset-hero"
+                }],
+                "id": "turn-1"
+            })
+        );
+    }
+
+    #[test]
+    fn resource_reference_rejects_extra_identity_fields() {
+        let error = serde_json::from_value::<DirectCodexUserItem>(json!({
+            "type": "message",
+            "role": "user",
+            "content": [{
+                "type": "agc_resource_reference",
+                "resourceId": "asset-hero",
+                "label": "主角"
+            }],
+            "id": "turn-1"
+        }))
+        .expect_err("label must not be accepted on resource reference");
+        assert!(error.to_string().contains("unknown field"), "{error}");
+    }
+
+    #[test]
+    fn unknown_content_part_fails_closed() {
+        serde_json::from_value::<DirectCodexUserItem>(json!({
+            "type": "message",
+            "role": "user",
+            "content": [{"type": "future_part", "value": "x"}],
+            "id": "turn-1"
+        }))
+        .expect_err("unknown content part must fail closed");
+    }
+}
@@ -0,0 +1,96 @@
+use super::model::{
+    DirectCodexUserContentPart, DirectCodexUserItem, DirectCodexUserRole,
+    DirectCodexUserRuntimeRegionPart,
+};
+use crate::agent::{
+    read_manifest_for_project, sanitize_attachment_local_path, GameCreationAppManifest,
+};
+use std::path::Path;
+
+pub(crate) const MAX_DIRECT_CODEX_REFERENCES: usize = 32;
+
+pub(crate) fn validate_direct_codex_user_item(
+    root: &Path,
+    item: &DirectCodexUserItem,
+) -> Result<GameCreationAppManifest, String> {
+    validate_direct_codex_user_item_with_empty_content(root, item, false)
+}
+
+pub(crate) fn validate_direct_codex_user_item_with_empty_content(
+    root: &Path,
+    item: &DirectCodexUserItem,
+    allow_empty_content: bool,
+) -> Result<GameCreationAppManifest, String> {
+    let DirectCodexUserItem::Message(message) = item;
+    if !matches!(message.role, DirectCodexUserRole::User) {
+        return Err("DirectProject 只接受 user message item".to_string());
+    }
+    if message.id.trim().is_empty() {
+        return Err("DirectProject user item 缺少稳定 id".to_string());
+    }
+    if message.content.is_empty() && !allow_empty_content {
+        return Err("DirectProject user item content 不能为空".to_string());
+    }
+    let manifest = read_manifest_for_project(root)?;
+    let mut reference_count = 0usize;
+    for part in &message.content {
+        match part {
+            DirectCodexUserContentPart::InputText { text } => {
+                if text.trim().is_empty() {
+                    return Err("DirectProject input_text 不能为空".to_string());
+                }
+            }
+            DirectCodexUserContentPart::AgcResourceReference { resource_id } => {
+                reference_count = reference_count.saturating_add(1);
+                validate_resource_id_and_manifest(&manifest, resource_id)?;
+            }
+            DirectCodexUserContentPart::AgcRuntimeRegionReference(reference) => {
+                reference_count = reference_count.saturating_add(1);
+                validate_runtime_region_reference(&manifest, reference)?;
+            }
+        }
+    }
+    if reference_count > MAX_DIRECT_CODEX_REFERENCES {
+        return Err(format!("一次最多引用 {MAX_DIRECT_CODEX_REFERENCES} 个素材"));
+    }
+    Ok(manifest)
+}
+
+pub(crate) fn validate_resource_id_and_manifest(
+    manifest: &GameCreationAppManifest,
+    resource_id: &str,
+) -> Result<(), String> {
+    let resource_id = resource_id.trim();
+    if resource_id.is_empty()
+        || resource_id.chars().count() > 200
+        || resource_id.chars().any(char::is_control)
+    {
+        return Err("引用的素材 ID 无效，请移除后重新选择".to_string());
+    }
+    let asset = manifest
+        .assets
+        .iter()
+        .find(|asset| asset.id == resource_id)
+        .ok_or_else(|| "引用的素材已不存在，请移除后重新选择".to_string())?;
+    sanitize_attachment_local_path(&asset.local_path)
+        .ok_or_else(|| "引用的素材路径无效，请移除后重新选择".to_string())?;
+    Ok(())
+}
+
+fn validate_runtime_region_reference(
+    manifest: &GameCreationAppManifest,
+    reference: &DirectCodexUserRuntimeRegionPart,
+) -> Result<(), String> {
+    if reference.label.trim().is_empty() {
+        return Err("运行画面区域缺少名称".to_string());
+    }
+    if reference.resource_ids.len() > MAX_DIRECT_CODEX_REFERENCES {
+        return Err(format!(
+            "运行画面区域一次最多关联 {MAX_DIRECT_CODEX_REFERENCES} 个素材"
+        ));
+    }
+    for resource_id in &reference.resource_ids {
+        validate_resource_id_and_manifest(manifest, resource_id)?;
+    }
+    Ok(())
+}
@@ -0,0 +1,226 @@
+use super::model::{DirectCodexUserContentPart, DirectCodexUserItem};
+use super::validation::{
+    validate_direct_codex_user_item, validate_direct_codex_user_item_with_empty_content,
+};
+use crate::agent::sanitize_attachment_local_path;
+use serde_json::Value;
+use std::path::Path;
+
+/// 将历史中的 canonical user item 投影为 Codex `response_item` message。
+/// 非 user message 的标准 Response item 原样返回；未知形状直接失败。
+pub(crate) fn direct_codex_user_item_to_response_item(
+    root: &Path,
+    item: &Value,
+) -> Result<Value, String> {
+    let is_user_message = item.get("type").and_then(Value::as_str) == Some("message")
+        && item.get("role").and_then(Value::as_str) == Some("user");
+    if !is_user_message {
+        if item.get("type").and_then(Value::as_str).is_some() {
+            return Ok(item.clone());
+        }
+        return Err("DirectProject 历史 item 缺少 type，无法投影为 Codex item".to_string());
+    }
+    let canonical: DirectCodexUserItem = serde_json::from_value(item.clone())
+        .map_err(|error| format!("DirectProject user item 无法转换为 Codex item：{error}"))?;
+    let content = direct_codex_user_item_to_response_content(root, &canonical)?;
+    let mut projected = serde_json::json!({
+        "type": "message",
+        "role": "user",
+        "content": content,
+    });
+    if let Some(id) = item.get("id").and_then(Value::as_str) {
+        projected["id"] = Value::String(id.to_string());
+    }
+    Ok(projected)
+}
+
+fn direct_codex_user_item_to_response_content(
+    root: &Path,
+    item: &DirectCodexUserItem,
+) -> Result<Vec<Value>, String> {
+    let Value::Array(input) = direct_codex_user_item_to_wire_input(root, item)? else {
+        return Err("DirectProject user item wire content 不是数组".to_string());
+    };
+    input
+        .into_iter()
+        .map(|part| {
+            let text = part
+                .get("text")
+                .and_then(Value::as_str)
+                .ok_or_else(|| "DirectProject user item wire part 缺少 text".to_string())?;
+            Ok(serde_json::json!({ "type": "input_text", "text": text }))
+        })
+        .collect()
+}
+
+/// 将 canonical user item 转为 app-server `turn/start.input` 可接受的文本数组。
+/// AGC 私有 part 只在这里投影为安全摘要，canonical item 本身不被修改。
+pub(crate) fn direct_codex_user_item_to_wire_input(
+    root: &Path,
+    item: &DirectCodexUserItem,
+) -> Result<Value, String> {
+    direct_codex_user_item_to_wire_input_with_empty_content(root, item, false)
+}
+
+fn direct_codex_user_item_to_wire_input_with_empty_content(
+    root: &Path,
+    item: &DirectCodexUserItem,
+    allow_empty_content: bool,
+) -> Result<Value, String> {
+    let manifest = if allow_empty_content {
+        validate_direct_codex_user_item_with_empty_content(root, item, true)?
+    } else {
+        validate_direct_codex_user_item(root, item)?
+    };
+    let DirectCodexUserItem::Message(message) = item;
+    let mut input = Vec::with_capacity(message.content.len());
+    for part in &message.content {
+        let text = match part {
+            DirectCodexUserContentPart::InputText { text } => text.clone(),
+            DirectCodexUserContentPart::AgcResourceReference { resource_id } => {
+                let asset = manifest
+                    .assets
+                    .iter()
+                    .find(|asset| asset.id == resource_id.trim())
+                    .ok_or_else(|| "引用的素材已不存在，请移除后重新选择".to_string())?;
+                let path = sanitize_attachment_local_path(&asset.local_path)
+                    .ok_or_else(|| "引用的素材路径无效，请移除后重新选择".to_string())?;
+                format!(
+                    "[素材引用 resourceId={}；项目路径={path}]",
+                    resource_id.trim()
+                )
+            }
+            DirectCodexUserContentPart::AgcRuntimeRegionReference(reference) => {
+                let resources = reference
+                    .resource_ids
+                    .iter()
+                    .map(|id| id.trim())
+                    .collect::<Vec<_>>()
+                    .join(",");
+                let mut summary = format!("[运行画面区域：名称={} ", reference.label.trim());
+                if let Some(run_id) = reference.run_id.as_deref() {
+                    summary.push_str(&format!("运行标识={} ", run_id.trim()));
+                }
+                if let Some(role) = reference.element_role.as_deref() {
+                    summary.push_str(&format!("角色={} ", role.trim()));
+                }
+                if let Some(text) = reference.text.as_deref() {
+                    summary.push_str(&format!("文本={} ", text.trim()));
+                }
+                if !resources.is_empty() {
+                    summary.push_str(&format!("关联素材={resources}"));
+                }
+                summary.push(']');
+                summary
+            }
+        };
+        input.push(serde_json::json!({ "type": "text", "text": text }));
+    }
+    Ok(Value::Array(input))
+}
+
+pub(crate) fn direct_codex_user_item_to_prompt(
+    root: &Path,
+    item: &DirectCodexUserItem,
+) -> Result<String, String> {
+    let wire = direct_codex_user_item_to_wire_input(root, item)?;
+    wire.as_array()
+        .ok_or_else(|| "DirectProject user item wire input 不是数组".to_string())
+        .map(|parts| {
+            parts
+                .iter()
+                .filter_map(|part| part.get("text").and_then(Value::as_str))
+                .collect::<String>()
+        })
+        .and_then(|prompt| {
+            if prompt.trim().is_empty() {
+                Err("DirectProject user item 不能转换为空 prompt".to_string())
+            } else {
+                Ok(prompt)
+            }
+        })
+}
+
+pub(crate) fn direct_codex_user_item_to_prompt_with_attachments(
+    root: &Path,
+    item: &DirectCodexUserItem,
+) -> Result<String, String> {
+    let wire = direct_codex_user_item_to_wire_input_with_empty_content(root, item, true)?;
+    wire.as_array()
+        .ok_or_else(|| "DirectProject user item wire input 不是数组".to_string())
+        .map(|parts| {
+            parts
+                .iter()
+                .filter_map(|part| part.get("text").and_then(Value::as_str))
+                .collect::<String>()
+        })
+}
+
+#[cfg(test)]
+mod tests {
+    use super::super::model::{
+        DirectCodexUserItem, DirectCodexUserMessageItem, DirectCodexUserRole,
+    };
+    use super::{
+        direct_codex_user_item_to_prompt_with_attachments, direct_codex_user_item_to_response_item,
+    };
+    use serde_json::json;
+    use std::path::Path;
+
+    #[test]
+    fn standard_response_item_passes_through_without_agc_private_parts() {
+        let item = json!({
+            "type": "message",
+            "role": "assistant",
+            "content": [{"type": "output_text", "text": "完成"}]
+        });
+        assert_eq!(
+            direct_codex_user_item_to_response_item(Path::new("/unused"), &item)
+                .expect("assistant response item should pass through"),
+            item
+        );
+    }
+
+    #[test]
+    fn response_item_projection_uses_input_text_not_turn_input_text() {
+        let root = tempfile::tempdir().expect("temp project");
+        crate::init_local_game_project_at(root.path(), "wire-test", "wire 投影测试")
+            .expect("init project");
+        let item = json!({
+            "type": "message",
+            "role": "user",
+            "id": "turn-1:user",
+            "content": [{"type": "input_text", "text": "你好"}]
+        });
+        let projected = direct_codex_user_item_to_response_item(root.path(), &item)
+            .expect("user response item should project");
+        assert_eq!(projected["content"][0]["type"], "input_text");
+        assert_ne!(projected["content"][0]["type"], "text");
+    }
+
+    #[test]
+    fn history_item_without_type_fails_closed() {
+        let error = direct_codex_user_item_to_response_item(
+            Path::new("/unused"),
+            &json!({"role": "assistant"}),
+        )
+        .expect_err("history item without type must fail");
+        assert!(error.contains("缺少 type"), "{error}");
+    }
+
+    #[test]
+    fn attachment_only_user_item_projects_to_an_empty_text_sidecar_prompt() {
+        let root = tempfile::tempdir().expect("temp project");
+        crate::init_local_game_project_at(root.path(), "attachment-only", "attachment-only");
+        let item = DirectCodexUserItem::Message(DirectCodexUserMessageItem {
+            role: DirectCodexUserRole::User,
+            content: vec![],
+            id: "turn-attachment-only:user".to_string(),
+        });
+        assert_eq!(
+            direct_codex_user_item_to_prompt_with_attachments(root.path(), &item)
+                .expect("empty canonical text is valid before attachment sidecar rendering"),
+            ""
+        );
+    }
+}
@@ -17,9 +17,6 @@ const DIRECT_PROJECT_HISTORY_SCAN_PROBE_FINISHED: usize = 1;
 /// 写入侧与读取侧共用同一个信封类型：`project.jsonl` 由项目主对话与 DirectProject 共享，
 /// 这个值一旦只在写入侧改动，读取侧就会把对方的行当成坏行，整份历史立刻读不出来。
 pub(crate) const DIRECT_PROJECT_HISTORY_RECORD_TYPE: &str = "response_item";
-/// 格式切换到 `response_item`（#282）之前，DirectProject 主对话通过通用对话写入器
-/// 落到同一份 `project.jsonl`，行形状是 `PersistedLocalConversationMessageRecord`。
-const DIRECT_PROJECT_HISTORY_LEGACY_SCHEMA_VERSION: &str = "game-creator-conversation.v1";
 const DIRECT_PROJECT_INTERNAL_CONTEXT_KINDS: &[&str] = &[
    "host_skills.instructions",
    "permissions.instructions",
@@ -180,79 +177,22 @@ fn direct_project_history_item_from_line(
    Ok(Some(item))
 }

-/// 只接受两种行信封：`response_item`，以及白名单化的 legacy 行。返回 `None` 表示行已
-/// 被识别、但不该进入 Codex 上下文（legacy 的 `tool` 行）。
-/// 其余任何形状（含换了 `schemaVersion`、带 `type` 却不是 `response_item`、role 不在
-/// legacy 写入器自己的角色集合内、content 不是非空字符串）都判定为损坏并失败关闭。
+/// 只接受 `response_item` 行信封；其它历史格式不提供迁移或 fallback，直接失败关闭。
 fn direct_project_history_item_from_parsed_line(
    path: &Path,
    parsed: &Value,
 ) -> Result<Option<Value>, String> {
-    if parsed.get("type").and_then(Value::as_str) == Some(DIRECT_PROJECT_HISTORY_RECORD_TYPE) {
-        return parsed
-            .get("payload")
-            .cloned()
-            .map(Some)
-            .ok_or_else(|| format!("DirectProject 历史记录缺少 payload：{}", path.display()));
+    if parsed.get("type").and_then(Value::as_str) != Some(DIRECT_PROJECT_HISTORY_RECORD_TYPE) {
+        return Err(format!(
+            "DirectProject 历史记录类型无效：{}",
+            path.display()
+        ));
    }
-    direct_project_legacy_row(parsed)
-        .map(|row| row.message_item())
-        .ok_or_else(|| format!("DirectProject 历史记录类型无效：{}", path.display()))
-}
-
-/// 白名单化 legacy 行的投影结果。
-enum DirectProjectLegacyRow {
-    /// user/assistant 行：投影成 message item 进入历史。
-    Message(Value),
-    /// 已识别但不可注入的行（`tool`）：与 developer/system item 同样处理，不进 Codex
-    /// 上下文。legacy 行不是 Responses item，`tool` 行无法还原成真正的工具 item，
-    /// 注入会造出假的工具消息；聊天投影本来也只展示 user/assistant。
-    NotChat,
-}
-
-impl DirectProjectLegacyRow {
-    fn message_item(self) -> Option<Value> {
-        match self {
-            DirectProjectLegacyRow::Message(item) => Some(item),
-            DirectProjectLegacyRow::NotChat => None,
-        }
-    }
-}
-
-/// 格式切换前的 legacy 行投影。存量用户项目的历史文件全是这种行，读取时投影成与
-/// `direct_project_local_message_item` 同形状的 message item，`role` 与 `content`
-/// 原样保留（不 trim、不改写、不合并），未知字段忽略。
-///
-/// 角色白名单取的是 legacy 写入器自己的角色集合，也就是
-/// `project/conversation.rs` 里 `matches!(role, "user" | "assistant" | "tool")` 这一
-/// 条校验，所以「legacy 写入器能写出的行」被完整覆盖，不会有第三种角色漏进来；
-/// 白名单之外的角色（手改文件、未来写入器）仍按损坏失败关闭。
-fn direct_project_legacy_row(parsed: &Value) -> Option<DirectProjectLegacyRow> {
-    let object = parsed.as_object()?;
-    if object.contains_key("type")
-        || object.get("schemaVersion").and_then(Value::as_str)
-            != Some(DIRECT_PROJECT_HISTORY_LEGACY_SCHEMA_VERSION)
-    {
-        return None;
-    }
-    let role = object.get("role").and_then(Value::as_str)?;
-    if !matches!(role, "user" | "assistant" | "tool") {
-        return None;
-    }
-    let content = object.get("content").and_then(Value::as_str)?;
-    if content.is_empty() {
-        return None;
-    }
-    if role == "tool" {
-        return Some(DirectProjectLegacyRow::NotChat);
-    }
-    let message_id = object
-        .get("messageId")
-        .and_then(Value::as_str)
-        .filter(|message_id| !message_id.is_empty());
-    Some(DirectProjectLegacyRow::Message(
-        direct_project_message_item(role, content, message_id),
-    ))
+    parsed
+        .get("payload")
+        .cloned()
+        .map(Some)
+        .ok_or_else(|| format!("DirectProject 历史记录缺少 payload：{}", path.display()))
 }

 /// 测试专用探针：在"锁外幂等回扫"这一段的两端回调。
@@ -512,8 +452,8 @@ pub(crate) fn direct_project_local_message_item(
    ))
 }

-/// 本地补写与 legacy 投影共用同一种 Responses message item 形状，两者的区别只在
-/// 是否对入参做 trim 校验：本地补写走上面的校验，legacy 行按文件内容逐字节投影。
+/// 本地补写与 Codex response item 共用同一种 Responses message item 形状；本地补写额外做
+/// trim 校验，历史读取只接受 response_item envelope。
 fn direct_project_message_item(role: &str, content: &str, message_id: Option<&str>) -> Value {
    let mut item = serde_json::json!({
        "type": "message",
@@ -626,7 +566,7 @@ mod tests {

    fn init_history_project(name: &str) -> tempfile::TempDir {
        let root = tempfile::tempdir().expect("temp project");
-        crate::init_local_game_project_at(root.path(), name, "历史格式兼容测试")
+        crate::init_local_game_project_at(root.path(), name, "Response item 历史测试")
            .expect("init project");
        root
    }
@@ -637,9 +577,8 @@ mod tests {
        std::fs::write(&path, format!("{}\n", lines.join("\n"))).expect("write history fixture");
    }

-    const LEGACY_USER_ROW: &str = r#"{"schemaVersion":"game-creator-conversation.v1","role":"user","content":"请创建菜单","agentId":null,"messageId":"direct-codex:turn-0001:user","updatedAt":1757000000}"#;
-    const LEGACY_ASSISTANT_ROW: &str = r#"{"schemaVersion":"game-creator-conversation.v1","role":"assistant","content":"已完成 第一行\n第二行 ","agentId":null,"updatedAt":1757000001}"#;
    const RESPONSE_ITEM_ROW: &str = r#"{"type":"response_item","payload":{"type":"message","role":"user","id":"codex-item-2","content":[{"type":"input_text","text":"再加一个按钮"}]}}"#;
+    const RESPONSE_ASSISTANT_ROW: &str = r#"{"type":"response_item","payload":{"type":"message","role":"assistant","content":[{"type":"output_text","text":"已完成"}]}}"#;

    /// 判据：争用类失败会被"有界退避重试"真的吃掉，最终把条目落一行。
    ///
@@ -648,7 +587,7 @@ mod tests {
    #[test]
    fn contention_failure_is_retried_with_bounded_backoff() {
        let root = init_history_project("contention-retry");
-        write_history_lines(root.path(), &[LEGACY_USER_ROW]);
+        write_history_lines(root.path(), &[RESPONSE_ITEM_ROW]);
        let marker = root
            .path()
            .join(".agent/runtime/test-fail-next-direct-project-history-append");
@@ -680,7 +619,7 @@ mod tests {
    #[test]
    fn contention_failure_beyond_the_backoff_budget_fails_closed() {
        let root = init_history_project("contention-bounded");
-        write_history_lines(root.path(), &[LEGACY_USER_ROW]);
+        write_history_lines(root.path(), &[RESPONSE_ITEM_ROW]);
        let marker = root
            .path()
            .join(".agent/runtime/test-fail-next-direct-project-history-append");
@@ -723,7 +662,7 @@ mod tests {
        write_history_lines(
            root.path(),
            &[
-                LEGACY_USER_ROW,
+                RESPONSE_ITEM_ROW,
                r#"{"schemaVersion":"game-creator"#,
                RESPONSE_ITEM_ROW,
            ],
@@ -761,7 +700,7 @@ mod tests {
        let root = init_history_project("scan-outside-lock");
        write_history_lines(
            root.path(),
-            &[LEGACY_USER_ROW, RESPONSE_ITEM_ROW, LEGACY_ASSISTANT_ROW],
+            &[RESPONSE_ITEM_ROW, RESPONSE_ITEM_ROW, RESPONSE_ASSISTANT_ROW],
        );
        let path = history_path(root.path());
        let fired = Arc::new(AtomicBool::new(false));
@@ -805,7 +744,7 @@ mod tests {
    #[test]
    fn concurrent_append_after_the_out_of_lock_scan_still_prevents_a_duplicate_row() {
        let root = init_history_project("scan-stale-state");
-        write_history_lines(root.path(), &[LEGACY_USER_ROW]);
+        write_history_lines(root.path(), &[RESPONSE_ITEM_ROW]);
        let path = history_path(root.path());
        let item = json!({
            "type": "message",
@@ -845,7 +784,7 @@ mod tests {
    #[test]
    fn conflicting_item_id_still_fails_closed_with_the_scan_outside_the_lock() {
        let root = init_history_project("id-conflict-outside-lock");
-        write_history_lines(root.path(), &[LEGACY_USER_ROW]);
+        write_history_lines(root.path(), &[RESPONSE_ITEM_ROW]);
        append_direct_project_history_item_at(
            root.path(),
            &json!({
@@ -1033,97 +972,13 @@ mod tests {
    }

    #[test]
-    fn legacy_conversation_rows_project_into_responses_message_items() {
-        let root = init_history_project("legacy-projection");
-        write_history_lines(root.path(), &[LEGACY_USER_ROW, LEGACY_ASSISTANT_ROW]);
-
-        let items = read_direct_project_history_items_at(root.path()).expect("read legacy history");
-        assert_eq!(
-            items,
-            vec![
-                json!({
-                    "type": "message",
-                    "role": "user",
-                    "id": "direct-codex:turn-0001:user",
-                    "content": [{"type": "input_text", "text": "请创建菜单"}],
-                }),
-                json!({
-                    "type": "message",
-                    "role": "assistant",
-                    "content": [{"type": "output_text", "text": "已完成 第一行\n第二行 "}],
-                }),
-            ]
-        );
-
-        let chat = read_direct_project_chat_history_at(root.path()).expect("read legacy chat");
-        assert_eq!(chat.messages.len(), 2);
-        assert_eq!(chat.messages[0].role, "user");
-        assert_eq!(chat.messages[0].content, "请创建菜单");
-        assert_eq!(
-            chat.messages[0].message_id.as_deref(),
-            Some("direct-codex:turn-0001:user")
-        );
-        assert_eq!(chat.messages[1].role, "assistant");
-        assert_eq!(chat.messages[1].content, "已完成 第一行\n第二行 ");
-        assert_eq!(chat.messages[1].message_id, None);
-    }
-
-    #[test]
-    fn mixed_legacy_and_response_item_history_reads_in_file_order() {
-        let root = init_history_project("mixed-history");
-        write_history_lines(
-            root.path(),
-            &[LEGACY_USER_ROW, RESPONSE_ITEM_ROW, LEGACY_ASSISTANT_ROW],
-        );
-
-        let items = read_direct_project_history_items_at(root.path()).expect("read mixed history");
-        assert_eq!(
-            items
-                .iter()
-                .map(|item| item.get("id").and_then(Value::as_str))
-                .collect::<Vec<_>>(),
-            vec![
-                Some("direct-codex:turn-0001:user"),
-                Some("codex-item-2"),
-                None
-            ]
-        );
-        assert_eq!(
-            items[1],
-            json!({
-                "type": "message",
-                "role": "user",
-                "id": "codex-item-2",
-                "content": [{"type": "input_text", "text": "再加一个按钮"}],
-            })
-        );
-        assert_eq!(
-            items[2]["content"][0]["text"],
-            json!("已完成 第一行\n第二行 ")
-        );
-
-        let chat = read_direct_project_chat_history_at(root.path()).expect("read mixed chat");
-        assert_eq!(
-            chat.messages
-                .iter()
-                .map(|message| (message.role.as_str(), message.content.as_str()))
-                .collect::<Vec<_>>(),
-            vec![
-                ("user", "请创建菜单"),
-                ("user", "再加一个按钮"),
-                ("assistant", "已完成 第一行\n第二行 "),
-            ]
-        );
-    }
-
-    #[test]
-    fn legacy_compat_keeps_unrecognized_rows_failing_closed() {
+    fn non_response_item_history_fails_closed() {
        let unrecognized_rows = [
            // 带 type 却不是 response_item
            r#"{"type":"message","role":"user","content":[{"type":"input_text","text":"x"}]}"#,
-            // schemaVersion 不在白名单里
+            // 旧 schema 不提供 fallback
            r#"{"schemaVersion":"game-creator-conversation.v2","role":"user","content":"x","agentId":null,"updatedAt":1}"#,
-            // legacy 写入器角色集合之外的角色
+            // 旧 schema 的其它角色也拒绝
            r#"{"schemaVersion":"game-creator-conversation.v1","role":"system","content":"x","agentId":null,"updatedAt":1}"#,
            r#"{"schemaVersion":"game-creator-conversation.v1","role":"developer","content":"x","agentId":null,"updatedAt":1}"#,
            // content 不是字符串
@@ -1159,61 +1014,4 @@ mod tests {
            .expect_err("broken json must fail closed");
        assert!(error.starts_with("解析 DirectProject 历史失败"), "{error}");
    }
-
-    #[test]
-    fn legacy_tool_row_is_recognized_but_stays_out_of_the_codex_context() {
-        let root = init_history_project("legacy-tool-row");
-        write_history_lines(
-            root.path(),
-            &[
-                LEGACY_USER_ROW,
-                r#"{"schemaVersion":"game-creator-conversation.v1","role":"tool","content":"{\"ok\":true}","agentId":null,"updatedAt":1757000002}"#,
-                LEGACY_ASSISTANT_ROW,
-            ],
-        );
-
-        let items = read_direct_project_history_items_at(root.path()).expect("read history");
-        assert_eq!(
-            items
-                .iter()
-                .map(|item| item["role"].as_str().unwrap_or_default())
-                .collect::<Vec<_>>(),
-            vec!["user", "assistant"]
-        );
-
-        let chat = read_direct_project_chat_history_at(root.path()).expect("read chat");
-        assert_eq!(
-            chat.messages
-                .iter()
-                .map(|message| message.role.as_str())
-                .collect::<Vec<_>>(),
-            vec!["user", "assistant"]
-        );
-    }
-
-    #[test]
-    fn generic_writer_rows_are_covered_by_the_legacy_whitelist() {
-        let root = init_history_project("generic-writer-shape");
-        crate::append_local_conversation_message_at(
-            root.path(),
-            None,
-            crate::LocalConversationMessage {
-                role: "user".to_string(),
-                content: "通用写入器写的旧格式回合".to_string(),
-                agent_id: None,
-            },
-        )
-        .expect("append legacy row through the generic writer");
-
-        let items =
-            read_direct_project_history_items_at(root.path()).expect("read generic writer row");
-        assert_eq!(
-            items,
-            vec![json!({
-                "type": "message",
-                "role": "user",
-                "content": [{"type": "input_text", "text": "通用写入器写的旧格式回合"}],
-            })]
-        );
-    }
 }
@@ -6,6 +6,9 @@ use std::io::Write;
 use std::path::{Path, PathBuf};
 use std::sync::{Mutex, OnceLock};

+mod user_input;
+pub(crate) use user_input::chat_with_game_creator_direct_codex;
+
 const MAX_DIRECT_SYSTEM_PROMPT_CHARS: usize = 16 * 1024;
 const MIN_DIRECT_CLIENT_TURN_ID_CHARS: usize = 6;
 const MAX_DIRECT_CLIENT_TURN_ID_CHARS: usize = 160;
@@ -4055,6 +4058,7 @@ pub(crate) async fn run_direct_game_creator_turn_at_with_creation_type(
        creation_type,
        None,
        None,
+        None,
    )
    .await
 }
@@ -4065,6 +4069,7 @@ async fn run_direct_game_creator_turn_at_with_creation_type_and_emitter(
    creation_type: Option<&str>,
    turn_emitter: Option<&DirectGameCreatorTurnUpdateEmitter>,
    audit: Option<&mut DirectCodexTurnAudit>,
+    direct_user_item: Option<serde_json::Value>,
 ) -> Result<String, String> {
    if !root.is_absolute() || !root.is_dir() {
        return Err("当前项目目录不存在或不是绝对路径".to_string());
@@ -4080,7 +4085,15 @@ async fn run_direct_game_creator_turn_at_with_creation_type_and_emitter(
    if let Some(emitter) = turn_emitter {
        emitter.emit("accepted", Some("request-accepted"), None);
    }
-    match run_direct_game_creator_turn_inner(root, prompt, creation_type, turn_emitter, audit).await
+    match run_direct_game_creator_turn_inner(
+        root,
+        prompt,
+        creation_type,
+        turn_emitter,
+        audit,
+        direct_user_item,
+    )
+    .await
    {
        Ok(reply) => Ok(reply),
        Err(failure) => {
@@ -4099,6 +4112,7 @@ async fn run_direct_game_creator_turn_inner(
    creation_type: Option<&str>,
    turn_emitter: Option<&DirectGameCreatorTurnUpdateEmitter>,
    audit: Option<&mut DirectCodexTurnAudit>,
+    direct_user_item: Option<serde_json::Value>,
 ) -> Result<String, DirectCodexTurnFailure> {
    emit_direct_game_creator_progress(root, "codex.turn", "陶泥儿正在处理这条消息");
    if let Some(emitter) = turn_emitter {
@@ -4152,6 +4166,7 @@ async fn run_direct_game_creator_turn_inner(
            Some(&client_turn_id),
            Some(&mut observer),
            audit,
+            direct_user_item,
        )
        .await
    } else {
@@ -4162,6 +4177,7 @@ async fn run_direct_game_creator_turn_inner(
            None,
            None,
            audit,
+            direct_user_item,
        )
        .await
    }
@@ -4453,95 +4469,6 @@ async fn run_direct_game_creator_turn_with_private_editor_credentials(
    ))
 }

-fn normalize_direct_client_turn_id(client_turn_id: Option<&str>) -> Result<String, String> {
-    let Some(client_turn_id) = client_turn_id else {
-        return Err("Direct 客户端回合缺少稳定 clientTurnId，已拒绝创建可计费生成身份".to_string());
-    };
-    let client_turn_id = client_turn_id.trim();
-    let valid_length = (MIN_DIRECT_CLIENT_TURN_ID_CHARS..=MAX_DIRECT_CLIENT_TURN_ID_CHARS)
-        .contains(&client_turn_id.len());
-    let mut bytes = client_turn_id.bytes();
-    let valid_first = bytes
-        .next()
-        .is_some_and(|byte| byte.is_ascii_alphanumeric());
-    let valid_rest = bytes.all(|byte| byte.is_ascii_alphanumeric() || byte == b'-');
-    if !valid_length || !valid_first || !valid_rest {
-        return Err(format!(
-            "clientTurnId 必须为 {MIN_DIRECT_CLIENT_TURN_ID_CHARS} 到 {MAX_DIRECT_CLIENT_TURN_ID_CHARS} 位 ASCII 字母、数字或连字符，且首位必须为字母或数字"
-        ));
-    }
-    Ok(client_turn_id.to_string())
-}
-
-#[tauri::command]
-pub(crate) async fn chat_with_game_creator_direct_codex(
-    project_path: String,
-    prompt: String,
-    creation_type: Option<String>,
-    client_turn_id: Option<String>,
-    attachments: Option<Vec<DirectCodexTurnAttachment>>,
-    references: Option<Vec<DirectCodexTurnReference>>,
-) -> Result<String, String> {
-    let root = Path::new(project_path.trim());
-    let turn_id = normalize_direct_client_turn_id(client_turn_id.as_deref())?;
-    let _active_invocation = DirectTaonierActiveInvocationGuard::enter(root, &turn_id)?;
-    recover_direct_taonier_regeneration_workflow_at(root).map_err(|error| {
-        redact_agent_runtime_error(root, &format!("恢复上一轮陶泥儿整包事务失败：{error}"), 500)
-    })?;
-    let turn_emitter = DirectGameCreatorTurnUpdateEmitter::new(root, turn_id.clone());
-    let mut audit = DirectCodexTurnAudit::start(
-        root,
-        &turn_id,
-        &prompt,
-        attachments.as_deref().unwrap_or_default(),
-    );
-    let attachments = attachments.unwrap_or_default();
-    let references = references.unwrap_or_default();
-    let mut user_prompt = match render_direct_codex_user_prompt(&prompt, &attachments) {
-        Ok(prompt) => prompt,
-        Err(_) if !references.is_empty() && prompt.trim().is_empty() => String::new(),
-        Err(error) => {
-            audit.finish(false);
-            return Err(error);
-        }
-    };
-    if let Some(reference_section) = match render_direct_codex_references_section(root, &references)
-    {
-        Ok(section) => section,
-        Err(error) => {
-            audit.finish(false);
-            return Err(error);
-        }
-    } {
-        if !user_prompt.trim().is_empty() {
-            user_prompt.push_str("\n\n");
-        }
-        user_prompt.push_str(&reference_section);
-    }
-    if user_prompt.trim().is_empty() {
-        audit.finish(false);
-        return Err("聊天内容不能为空".to_string());
-    }
-    let reply = match run_direct_game_creator_turn_at_with_creation_type_and_emitter(
-        root,
-        &user_prompt,
-        creation_type.as_deref(),
-        Some(&turn_emitter),
-        Some(&mut audit),
-    )
-    .await
-    {
-        Ok(reply) => reply,
-        Err(error) => {
-            audit.finish(false);
-            return Err(error);
-        }
-    };
-    audit.finish(true);
-    turn_emitter.emit("completed", Some("none"), Some(reply.clone()));
-    Ok(reply)
-}
-
 #[tauri::command]
 pub(crate) async fn chat_with_game_creator_home_direct_codex(
    prompt: String,
@@ -0,0 +1,86 @@
+//! DirectProject 用户输入命令适配器。
+//!
+//! Tauri 只在这里接收前端 item，校验与 canonical→prompt 投影交给 user-item
+//! 深模块，回合编排仍由父模块负责。
+
+use super::*;
+
+fn normalize_direct_client_turn_id(client_turn_id: Option<&str>) -> Result<String, String> {
+    let Some(client_turn_id) = client_turn_id else {
+        return Err("Direct 客户端回合缺少稳定 clientTurnId，已拒绝创建可计费生成身份".to_string());
+    };
+    let client_turn_id = client_turn_id.trim();
+    let valid_length = (MIN_DIRECT_CLIENT_TURN_ID_CHARS..=MAX_DIRECT_CLIENT_TURN_ID_CHARS)
+        .contains(&client_turn_id.len());
+    let mut bytes = client_turn_id.bytes();
+    let valid_first = bytes
+        .next()
+        .is_some_and(|byte| byte.is_ascii_alphanumeric());
+    let valid_rest = bytes.all(|byte| byte.is_ascii_alphanumeric() || byte == b'-');
+    if !valid_length || !valid_first || !valid_rest {
+        return Err(format!(
+            "clientTurnId 必须为 {MIN_DIRECT_CLIENT_TURN_ID_CHARS} 到 {MAX_DIRECT_CLIENT_TURN_ID_CHARS} 位 ASCII 字母、数字或连字符，且首位必须为字母或数字"
+        ));
+    }
+    Ok(client_turn_id.to_string())
+}
+
+#[tauri::command]
+pub(crate) async fn chat_with_game_creator_direct_codex(
+    project_path: String,
+    prompt: String,
+    user_item: DirectCodexUserItem,
+    creation_type: Option<String>,
+    client_turn_id: Option<String>,
+    attachments: Option<Vec<DirectCodexTurnAttachment>>,
+) -> Result<String, String> {
+    let root = Path::new(project_path.trim());
+    let turn_id = normalize_direct_client_turn_id(client_turn_id.as_deref())?;
+    let _active_invocation = DirectTaonierActiveInvocationGuard::enter(root, &turn_id)?;
+    recover_direct_taonier_regeneration_workflow_at(root).map_err(|error| {
+        redact_agent_runtime_error(root, &format!("恢复上一轮陶泥儿整包事务失败：{error}"), 500)
+    })?;
+    let turn_emitter = DirectGameCreatorTurnUpdateEmitter::new(root, turn_id.clone());
+    let mut audit = DirectCodexTurnAudit::start(
+        root,
+        &turn_id,
+        &prompt,
+        attachments.as_deref().unwrap_or_default(),
+    );
+    let attachments = attachments.unwrap_or_default();
+    let user_prompt = if attachments.is_empty() {
+        direct_codex_user_item_to_prompt(root, &user_item)
+    } else {
+        direct_codex_user_item_to_prompt_with_attachments(root, &user_item)
+    }
+    .map_err(|error| {
+        audit.finish(false);
+        error
+    })?;
+    let user_prompt =
+        render_direct_codex_user_prompt(&user_prompt, &attachments).map_err(|error| {
+            audit.finish(false);
+            error
+        })?;
+    let canonical_user_item =
+        Some(serde_json::to_value(user_item).map_err(|error| error.to_string())?);
+    let reply = match run_direct_game_creator_turn_at_with_creation_type_and_emitter(
+        root,
+        &user_prompt,
+        creation_type.as_deref(),
+        Some(&turn_emitter),
+        Some(&mut audit),
+        canonical_user_item,
+    )
+    .await
+    {
+        Ok(reply) => reply,
+        Err(error) => {
+            audit.finish(false);
+            return Err(error);
+        }
+    };
+    audit.finish(true);
+    turn_emitter.emit("completed", Some("none"), Some(reply.clone()));
+    Ok(reply)
+}
@@ -1074,6 +1074,102 @@ pub(in crate::agent) fn remove_platform_art_generation_runtime_state_at(
    }
 }

+/// 一次性兼容：升级前 standalone 槽身份只由 `{outputPath, requireSlices}` 派生，
+/// 同一项目所有图片类生成共用一个槽；升级后槽身份按精确动作派生，路径随之变化。
+///
+/// 若旧槽路径上的账本仍然属于本次精确动作（`agentId` 与 `actionFingerprint` 都与
+/// 当前上下文一致），就在项目写锁内把它迁移到新身份路径：保留原 `idempotencyKey`
+/// 与 `operationId`，避免同一精确动作在升级后二次 POST 计费。旧账本属于其他动作时
+/// 原样保留（不迁移、不删除、不阻塞），由对应动作自己的请求迁移。
+///
+/// 返回 `Ok(false)` 表示没有需要迁移的旧账本。任何身份无法安全解释的情形都失败关闭。
+pub(super) fn adopt_legacy_standalone_platform_art_generation_runtime_state_at(
+    root: &Path,
+    context: &PlatformArtGenerationRuntimeContext,
+    legacy_run_id: &str,
+) -> Result<bool, String> {
+    if !is_standalone_platform_art_generation_runtime_context(context)
+        || legacy_run_id == context.run_id
+        || !is_lowercase_sha256(legacy_run_id.strip_prefix("slot-").unwrap_or_default())
+    {
+        return Ok(false);
+    }
+    // 与账本创建互斥：迁移必须在同一把项目写锁内完成，否则两个调用可能同时把同一份
+    // 旧账本迁移到新路径，或与新建账本互相覆盖。
+    let _claim_lock = acquire_game_creator_agent_runtime_project_write_lock_with_wait(
+        root,
+        "canvas.asset_generate.runtime.claim",
+    )?;
+    if game_creator_agent_runtime_external_generation_exists(
+        root,
+        &context.agent_id,
+        &context.run_id,
+    ) {
+        // 新身份账本已经存在：旧账本不属于本次动作的权威状态，保持两边各自的身份。
+        return Ok(false);
+    }
+    let legacy_relative_path =
+        platform_art_generation_runtime_relative_path(&context.agent_id, legacy_run_id);
+    let Some(legacy_state) =
+        read_agent_runtime_json_sidecar_with_max_bytes::<PlatformArtGenerationRuntimeState>(
+            root,
+            &legacy_relative_path,
+            "External Editor 生成账本",
+            PLATFORM_ART_GENERATION_RUNTIME_MAX_BYTES,
+        )?
+    else {
+        return Ok(false);
+    };
+    if legacy_state.agent_id != context.agent_id
+        || legacy_state.run_id != legacy_run_id
+        || legacy_state.action_fingerprint != context.action_fingerprint
+    {
+        // 旧槽里是另一个精确动作的账本：它仍归那个动作所有，本次调用不得消费、改写或删除它。
+        return Ok(false);
+    }
+    let legacy_identity = format!("{}:{legacy_run_id}", context.agent_id);
+    let legacy_context = PlatformArtGenerationRuntimeContext {
+        task_id: legacy_identity.clone(),
+        session_id: legacy_identity.clone(),
+        run_id: legacy_run_id.to_string(),
+        action_id: legacy_identity,
+        ..context.clone()
+    };
+    let Some(mut migrated) = read_platform_art_generation_runtime_state(root, &legacy_context)?
+    else {
+        return Ok(false);
+    };
+    migrated.run_id = context.run_id.clone();
+    migrated.task_id = context.task_id.clone();
+    migrated.session_id = context.session_id.clone();
+    migrated.action_id = context.action_id.clone();
+    migrated.updated_at = unix_timestamp();
+    write_platform_art_generation_runtime_state(root, &migrated)?;
+    remove_platform_art_generation_runtime_state_at(root, &context.agent_id, legacy_run_id)?;
+    Ok(true)
+}
+
+#[cfg(test)]
+pub(super) fn platform_art_generation_runtime_operation_id_for_test(
+    state: &PlatformArtGenerationRuntimeState,
+) -> Option<&str> {
+    state.operation_id.as_deref()
+}
+
+#[cfg(test)]
+pub(super) fn platform_art_generation_runtime_run_id_for_test(
+    state: &PlatformArtGenerationRuntimeState,
+) -> &str {
+    &state.run_id
+}
+
+#[cfg(test)]
+pub(super) fn platform_art_generation_runtime_action_fingerprint_for_test(
+    state: &PlatformArtGenerationRuntimeState,
+) -> &str {
+    &state.action_fingerprint
+}
+
 #[cfg(test)]
 pub(crate) fn write_platform_art_generation_runtime_accepted_for_test(
    root: &Path,
@@ -409,6 +409,8 @@ where
            (self.on_delta)(&platform_llm::LlmStreamDelta {
                accumulated_text,
                delta_text,
+                accumulated_reasoning: String::new(),
+                reasoning_delta: String::new(),
                finish_reason,
            });
        }
@@ -499,6 +501,7 @@ mod tests {
            provider: LlmProvider::OpenAiCompatible,
            model: "interaction-test".to_string(),
            text: text.to_string(),
+            reasoning: String::new(),
            finish_reason: Some("stop".to_string()),
            response_id: Some("interaction-response".to_string()),
            usage: None,
@@ -115,6 +115,7 @@ fn persist_tool_plan_handoff_repair_chain(
        provider: platform_llm::LlmProvider::OpenAiCompatible,
        model: llm.model.clone(),
        text: text.to_string(),
+        reasoning: String::new(),
        finish_reason: Some("stop".to_string()),
        response_id: None,
        usage: None,
@@ -146,6 +147,8 @@ fn stream_delta(delta_text: &str, accumulated_text: &str) -> platform_llm::LlmSt
    platform_llm::LlmStreamDelta {
        accumulated_text: accumulated_text.to_string(),
        delta_text: delta_text.to_string(),
+        accumulated_reasoning: String::new(),
+        reasoning_delta: String::new(),
        finish_reason: None,
    }
 }
@@ -1003,6 +1006,7 @@ async fn provider_handoff_identity_drift_closes_lifecycle_without_leaking_respon
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: old_llm.model.clone(),
            text: private_response.to_string(),
+            reasoning: String::new(),
            finish_reason: Some("stop".to_string()),
            response_id: None,
            usage: None,
@@ -1116,6 +1120,7 @@ async fn tool_plan_handoff_identity_drift_closes_entire_repair_chain_before_remo
        provider: platform_llm::LlmProvider::OpenAiCompatible,
        model: old_llm.model.clone(),
        text: text.to_string(),
+        reasoning: String::new(),
        finish_reason: Some("stop".to_string()),
        response_id: None,
        usage: None,
@@ -1302,6 +1307,7 @@ async fn tool_plan_capacity_gate_runs_before_provider_lifecycle_and_network() {
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: llm.model.clone(),
            text: format!("capacity response {loop_iteration}"),
+            reasoning: String::new(),
            finish_reason: Some("stop".to_string()),
            response_id: None,
            usage: None,
@@ -1436,6 +1442,7 @@ async fn tool_plan_handoff_durable_control_closes_entire_repair_chain_before_rem
        provider: platform_llm::LlmProvider::OpenAiCompatible,
        model: llm.model.clone(),
        text: text.to_string(),
+        reasoning: String::new(),
        finish_reason: Some("stop".to_string()),
        response_id: None,
        usage: None,
@@ -1552,6 +1559,7 @@ fn provider_recovery_cleanup_closes_tool_plan_lifecycle_before_removing_handoff(
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: llm.model.clone(),
            text: "cleanup handoff".to_string(),
+            reasoning: String::new(),
            finish_reason: Some("stop".to_string()),
            response_id: None,
            usage: None,
@@ -1623,6 +1631,7 @@ fn runtime_resume_scans_and_cleans_terminal_tool_plan_handoff() {
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: llm.model.clone(),
            text: "terminal handoff".to_string(),
+            reasoning: String::new(),
            finish_reason: Some("stop".to_string()),
            response_id: None,
            usage: None,
@@ -1718,6 +1727,7 @@ async fn provider_handoff_retry_conflict_preserves_both_sidecars_for_reconciliat
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: llm.model.clone(),
            text: "已成功但尚未消费的回复".to_string(),
+            reasoning: String::new(),
            finish_reason: Some("stop".to_string()),
            response_id: None,
            usage: None,
@@ -798,6 +798,7 @@ mod provider_reconciliation_diagnostic_tests {
        let response = platform_llm::LlmRunResponse {
            provider: platform_llm::LlmProvider::OpenAiCompatible,
            model: "test-model".to_string(),
+            reasoning: String::new(),
            text: "C:\\private\\response".to_string(),
            finish_reason: Some("completed".to_string()),
            response_id: Some("response-1".to_string()),
@@ -604,10 +604,10 @@ pub(crate) fn register_local_asset_at(
    register_local_asset_entry(root, local_path, kind, media_type, id_prefix, source)
 }

-pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<usize, String> {
+pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<bool, String> {
    let design_root = root.join("design_artifacts");
    if !design_root.exists() {
-        return Ok(0);
+        return Ok(false);
    }
    let mut files = Vec::new();
    let mut directories = vec![design_root];
@@ -630,7 +630,7 @@ pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<usize, String>
        }
    }
    files.sort();
-    let mut registered = 0;
+    let mut changed = false;
    for path in files {
        let relative = path
            .strip_prefix(root)
@@ -644,7 +644,7 @@ pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<usize, String>
            Some("yaml" | "yml") => "text/yaml",
            _ => "application/octet-stream",
        };
-        register_local_asset_at(
+        let (_, asset_changed) = register_local_asset_entry_with_change(
            root,
            &relative,
            "document",
@@ -663,9 +663,9 @@ pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<usize, String>
                reference_resource_ids: Vec::new(),
            },
        )?;
-        registered += 1;
+        changed |= asset_changed;
    }
-    Ok(registered)
+    Ok(changed)
 }

 pub(crate) fn import_canvas_asset_at(
@@ -1876,6 +1876,18 @@ pub(crate) fn register_local_asset_entry(
    id_prefix: &str,
    source: GameCreationAppAssetSource,
 ) -> Result<UploadLocalAssetResult, String> {
+    register_local_asset_entry_with_change(root, local_path, kind, media_type, id_prefix, source)
+        .map(|(result, _)| result)
+}
+
+fn register_local_asset_entry_with_change(
+    root: &Path,
+    local_path: &str,
+    kind: &str,
+    media_type: &str,
+    id_prefix: &str,
+    source: GameCreationAppAssetSource,
+) -> Result<(UploadLocalAssetResult, bool), String> {
    let normalized_path = normalize_relative_path(local_path)?;
    let absolute_path = resolve_local_project_path(root, &normalized_path)?;
    let manifest_path = root.join(".agent/manifest.json");
@@ -1888,7 +1900,7 @@ pub(crate) fn register_local_asset_entry(
    let mut source_for_record = source.clone();
    source_for_record.prompt = None;

-    let (id, record_type) = mutate_manifest_at(root, |manifest| {
+    let (id, record_type, changed) = mutate_manifest_at(root, |manifest| {
        if let Some(existing) = manifest
            .assets
            .iter_mut()
@@ -1898,13 +1910,16 @@ pub(crate) fn register_local_asset_entry(
            // 而陈旧的非 unclassified 值会被读侧无条件信任（自愈只在落盘值是 unclassified
            // 时才触发），于是这个资产永远停在错误栏目。
            // kind 没变时刻意不动 category——落盘分类是权威值，同 kind 重登记不得抹掉它。
+            let changed = existing.kind != kind
+                || existing.media_type != media_type
+                || existing.source != source;
            if existing.kind != kind {
                existing.kind = kind.to_string();
                existing.category = game_creation_app_asset_category_for_kind(kind);
            }
            existing.media_type = media_type.to_string();
            existing.source = source;
-            Ok((existing.id.clone(), "asset.update"))
+            Ok((existing.id.clone(), "asset.update", changed))
        } else {
            let id = format!(
                "{id_prefix}-{}-{}",
@@ -1922,7 +1937,7 @@ pub(crate) fn register_local_asset_entry(
                tags: Vec::new(),
                source,
            });
-            Ok((id, "asset.register"))
+            Ok((id, "asset.register", true))
        }
    })?;
    append_agent_db_record(
@@ -1937,12 +1952,15 @@ pub(crate) fn register_local_asset_entry(
        }),
    )?;

-    Ok(UploadLocalAssetResult {
-        id,
-        local_path: normalized_path.clone(),
-        absolute_path: absolute_path.to_string_lossy().into_owned(),
-        manifest_path: manifest_path.to_string_lossy().into_owned(),
-    })
+    Ok((
+        UploadLocalAssetResult {
+            id,
+            local_path: normalized_path.clone(),
+            absolute_path: absolute_path.to_string_lossy().into_owned(),
+            manifest_path: manifest_path.to_string_lossy().into_owned(),
+        },
+        changed,
+    ))
 }

 #[derive(Clone, Debug, Deserialize)]
@@ -2137,6 +2155,27 @@ mod tests {
    use super::*;
    use std::io::{Read, Write};

+    #[test]
+    fn design_artifact_registration_reports_only_real_manifest_changes() {
+        let temporary = tempfile::tempdir().expect("tempdir");
+        let root = temporary.path();
+        crate::project::init_local_game_project_at(root, "design-artifact-test", "策划产物登记")
+            .expect("init project");
+        fs::create_dir_all(root.join("design_artifacts/project")).expect("create artifacts");
+        fs::write(root.join("design_artifacts/project/design.md"), "设计内容")
+            .expect("write artifact");
+
+        assert!(register_design_artifacts_at(root).expect("register first time"));
+        assert_eq!(
+            read_existing_manifest_for_project(root)
+                .unwrap()
+                .assets
+                .len(),
+            1
+        );
+        assert!(!register_design_artifacts_at(root).expect("register idempotently"));
+    }
+
    /// 画板导出推断出的 kind 必须已经是 canonical 值。
    ///
    /// 这个值会被原样写进 manifest 并据以派生落盘 `category`；一旦写出非 canonical 值
--- a/Show More
+++ b/Show More