AGC 项目定时快照上传（目标 OSS agc-dev） (#400)

## 交付内容

- 客户端新增 `project_snapshot` 模块：项目扫描与排除口径、增量索引、差异对比、上传编排、状态查询。
- 触发：工作区窗口存活期间的周期定时器 + 工作区窗口关闭（`CloseRequested`）；应用退出只在有界预算内等待在途同步收尾，不重复发起。
- 服务端新增两条登录态路由 `POST /api/agc/project-snapshots/files` 与 `/manifest`，由 api-server 用服务端凭据写入私有前缀 `agc/project-snapshots/v1/{user}/{project}/`；客户端不持有 OSS 凭据、不直连 OSS。
- `platform-oss` 新增内部对象精确写入与探测、项目快照对象键构造；修复 `head_internal_object` 读 HEAD 响应长度恒为 0（会导致服务端"已存在即跳过"永不生效）。
- `shared-contracts` 新增 `agc_project_snapshots` DTO 与项目 ID、相对路径、摘要校验。
- 真实 OSS 存储层冒烟示例 + 客户端真实链路冒烟用例（`#[ignore]`，env 驱动）。
- 登记 `check-config.mjs` 的 native-only 命令白名单，恢复 `npm run agc` 可启动。

## 验证证据

- 存储层：`cargo run -p platform-oss --example agc_project_snapshot_live_smoke` 对真实 `agc-dev` 完成写入 → 读回（contentLength 32）→ 清单写入 → 探针清理。
- HTTP 层：登录态下 7 项校验（401 无 token、400 路径穿越/长度不一致/非法摘要/空正文/重复路径清单）全部符合预期且不写对象。
- 客户端链路（真实项目 gameagent-033b6cf3…）：第一次 `synced uploaded=6 uploadedBytes=36694 remoteSkipped=6`，紧接着第二次 `no-op uploaded=0`。
- GUI 触发：`trigger=periodic ... uploaded=6`；把周期设为 600 秒排除干扰、改一个文件后关窗得到 `trigger=project-close ... revision=2 uploaded=1`，索引摘要由 `28d837cd84f8ab62` 推进到 `bff34e2e336d901f`（同步在进程退出前完成）。
- 门禁：AGC `project_snapshot` 14 passed（+1 ignored live）、api-server `project_snapshots` 3 passed、platform-oss 39 passed、shared-contracts 87 passed、`cargo fmt --check`（两处）、`check:encoding`、`check:doc-index`、`git diff --check`、`check-config.mjs` 全部通过。

## 已知未决（不阻塞本里程碑）

- 远端对象只增不减：没有删除路径，也没有 bucket 生命周期规则；要收口需要先定保留语义（清单引用 GC 还是 OSS 生命周期）。
- 部署环境需确认 `GENARRATIVE_AGC_PROJECT_SNAPSHOT_OSS_*` 或回退的 `ALIYUN_OSS_*` 具备目标 bucket 私有前缀的 `PutObject` 权限；未配置时接口返回 503、客户端失败关闭（不推进索引）。
- 缺少按用户/项目的配额与限流（error_reports 有每小时提交上限的先例，本功能没有）。
- 没有界面入口与状态可见性：`read_local_project_snapshot_state` 已注册但未接 UI，失败只写本机日志。

## 不做

- 不做云端下载/恢复、跨设备合并、版本回滚。
- 不改 `/api/external/v1` 与 External OpenAPI，不新增 SpacetimeDB 表。

---------

Co-authored-by: kdletters <61648117+kdletters@users.noreply.github.com>
Reviewed-on: http://192.168.35.82/git/GenarrativeAI/Genarrative/pulls/400

.codex/skills/genarrative-external-editor-api/SKILL.md

@@ -32,7 +32,7 @@ Prefer `scripts/genarrative_external_api.py` for runnable REST calls. It uses on
 - Use stable references such as `objectKey`, project resource ID, or asset ID where each operation permits them. Image edit/redraw is stricter: `sourceReferenceId` accepts only a registered project resource ID or asset ID; upload confirmation alone is not enough. Use `/assets/read-url` only for temporary preview/download access.
 - Preserve both warning channels after completion. A general `warning` can coexist with `sliceWarning`; do not discard either.
 - Do not invent missing derivatives. A source-preserved warning means the main source remains usable but requested post-processing failed. A slice warning means the complete transparent sheet is usable but individual slices are absent.
-- Icon spritesheet generation accepts `sliceMode="connected-components"` (default alpha-connectivity detection) or `sliceMode="grid"`. Grid mode requires `gridX` and `gridY` (1-32); use `sliceCount` only to constrain connected-component output.
+- Icon spritesheet generation requires an explicit `sliceMode` and has no default. Use `sliceMode="grid"` with the `gridX` and `gridY` the requirement actually names (1-32 each) only for equal grid cells or fixed slots; use `sliceMode="connected-components"` for free-form sheets or an open number of subjects, and constrain the count with `sliceCount` instead of inventing grid dimensions. `connected-components` must not carry `gridX`/`gridY`; an omitted, contradictory, or misapplied declaration returns 400 before billing.
 - For successful `style="pixelArt"`, treat completed-result and nested resource/asset dimensions as the final logical-grid PNG dimensions. They may differ from `size`, `imageSize`, the provider image, and `canvasCompletion.placeholder`; do not rescale or reject the artifact to match those inputs.
 - Keep generated artifacts in the canvas and asset library together. Character animation accepts `assetFolderId` and `assetLabel`; its completed result directly returns the final `assetKind="character-animation"` resource and asset with formal sequence fields. Do not create a duplicate first-frame record.
 

.codex/skills/genarrative-external-editor-api/references/api-operations.md

@@ -94,7 +94,7 @@ For image edit/redraw, confirming an upload is not sufficient: create a project
 
 The icon-spritesheet primary `referenceId` is intentionally stricter than ordinary image references: it accepts only a current-owner project resource ID or asset ID whose authoritative `assetKind` is `icon-spec`. It does not accept an `objectKey`, URL, Data URL, or Blob URL.
 
-`sliceMode` controls atlas splitting. Use `"connected-components"` (default) to detect independent opaque regions by alpha connectivity, or `"grid"` with positive `gridX` and `gridY` values (maximum 32 each). `sliceCount` optionally constrains the connected-component result.
+`sliceMode` is required and has no default, so every request must state it. Use `"connected-components"` to detect independent opaque regions by alpha connectivity, or `"grid"` with positive `gridX` and `gridY` values (maximum 32 each) only when the requirement names equal grid cells or fixed slots; the dimensions must come from that requirement. `connected-components` must not carry `gridX`/`gridY`, and `sliceCount` constrains the connected-component result instead of expressing a grid. Omitting `sliceMode`, or contradicting the declared mode with grid dimensions, returns 400 before pricing, enqueueing, or any provider call.
 
 ## Common Values
 

.codex/skills/genarrative-external-editor-api/references/capability-routing.md

@@ -79,9 +79,9 @@ Keep the existing autonomous-build task graph. Do not add a parallel task system
 
 1. `art-director` generates `assets/art-spec.png` with image generation, `kind: "spec"`, then registers it as `assetKind: "icon-spec"`. This image is the authoritative visual spec; `generationInputs.artSpec` is supporting structured context.
 2. `design-foundation` generates `assets/ui-prototype.png` with `kind: "ui-design"`, using the registered art-spec resource ID in `referenceImageSrcs`.
-3. `art-asset-plan` generates transparent `assets/art-spritesheet.png` through icon spritesheet generation, using the same registered art-spec resource ID as `referenceId` plus concrete `iconDescriptions`. For a fixed four-category game contract it may send `sliceMode: "grid"`; for free-form assets use `sliceMode: "connected-components"` (the default).
+3. `art-asset-plan` generates transparent `assets/art-spritesheet.png` through icon spritesheet generation, using the same registered art-spec resource ID as `referenceId` plus concrete `iconDescriptions`. `sliceMode` is required and has no default: send `sliceMode: "grid"` with `gridX`/`gridY` only when the requirement itself fixes the slots or names the column/row count, and otherwise send `sliceMode: "connected-components"` (with `sliceCount` when a subject count must be constrained); never invent a grid to express "kinds of assets", and never send `gridX`/`gridY` with `connected-components`.
 
-For a playable Canvas game, do not stop at generation. Make `code-prototype` depend on `art-asset-plan` and consume the persisted `iconImageSrcs` slices for core players, blocks or targets, scene obstacles, and feedback. When using the fixed four-category contract, require response `sliceMode: "grid"` and exactly four slices before registering the local runtime sheet; both fewer and extra components fail closed. Treat `art-spec.png` as reference-only. A full-sheet `<img>`, CSS background, path-only mention, guessed equal-grid crop, or code-drawn replacement for core entities is not runtime asset use. If slicing produces `sliceWarning`, keep the complete transparent sheet as a valid editor artifact, but fail the playable game asset gate until real slice files or verified atlas coordinates exist; never invent coordinates or replace the icon-spritesheet route with ordinary image generation.
+For a playable Canvas game, do not stop at generation. Make `code-prototype` depend on `art-asset-plan` and consume the persisted `iconImageSrcs` slices for core players, blocks or targets, scene obstacles, and feedback. When the requirement fixes grid slots, require the response `sliceMode` to match the declared `grid` request and exactly `gridX × gridY` slices before registering the local runtime sheet; a connected-components request is instead judged by its own `sliceCount` or by the requirement, and both fewer and extra components fail closed. Treat `art-spec.png` as reference-only. A full-sheet `<img>`, CSS background, path-only mention, guessed equal-grid crop, or code-drawn replacement for core entities is not runtime asset use. If slicing produces `sliceWarning`, keep the complete transparent sheet as a valid editor artifact, but fail the playable game asset gate until real slice files or verified atlas coordinates exist; never invent coordinates or replace the icon-spritesheet route with ordinary image generation.
 
 Never use `assets/ui-prototype.png` as the spritesheet visual-spec reference. UI extraction is outside this canonical DAG.
 

.codex/skills/genarrative-external-editor-api/scripts/genarrative_external_api.py

@@ -617,6 +617,7 @@ class GenarrativeExternalClient:
         self,
         reference_id: str,
         icon_descriptions: list[str],
+        slice_mode: str,
         **fields: Any,
     ) -> Any:
         reference_id = normalize_optional_text(reference_id)
@@ -625,6 +626,20 @@ class GenarrativeExternalClient:
         descriptions = [item.strip() for item in icon_descriptions if item.strip()]
         if not descriptions:
             raise GenarrativeApiError("icon_descriptions must contain at least one non-empty item")
+        slice_mode = normalize_optional_text(slice_mode)
+        if slice_mode not in ("connected-components", "grid"):
+            raise GenarrativeApiError(
+                "slice_mode must be declared explicitly as 'connected-components' or 'grid'; the API has no default"
+            )
+        grid_x = fields.get("gridX")
+        grid_y = fields.get("gridY")
+        if slice_mode == "grid":
+            if grid_x is None or grid_y is None:
+                raise GenarrativeApiError("slice_mode='grid' requires both gridX and gridY")
+        elif grid_x is not None or grid_y is not None:
+            raise GenarrativeApiError(
+                "slice_mode='connected-components' must not carry gridX/gridY"
+            )
         label = fields.get("assetLabel", "图标图集")
         self._apply_canvas_session_fields(fields, label, 1024, 1024)
         fields.setdefault("screenColor", "auto")
@@ -635,6 +650,7 @@ class GenarrativeExternalClient:
                 **fields,
                 "referenceId": reference_id,
                 "iconDescriptions": descriptions,
+                "sliceMode": slice_mode,
             },
             idempotency_key=idempotency_key,
         )
@@ -879,9 +895,9 @@ def _self_test() -> None:
     client.generate_icon_spritesheet(
         "editor-resource-spec",
         ["蛇头向上", "蛇身直线", "转角", "尾部", "四类食物"],
+        "connected-components",
         canvasSession=session,
         assetLabel="贪吃蛇透明图集",
-        sliceMode="connected-components",
         referenceId="must-not-override-explicit-reference",
         iconDescriptions=["不得覆盖显式图标描述"],
     )

.env.example

@@ -158,6 +158,15 @@ ALIYUN_OSS_POST_EXPIRE_SECONDS="600"
 ALIYUN_OSS_POST_MAX_SIZE_BYTES="20971520"
 ALIYUN_OSS_SUCCESS_ACTION_STATUS="200"
 
+# AGC 项目定时快照上传目标。对象只落在服务端私有前缀
+# `agc/project-snapshots/v1/{user}/{project}/` 下，客户端直传票据不覆盖该前缀。
+# bucket 与凭据可以与资源 bucket 分离；凭据未设置时回退使用 ALIYUN_OSS_ACCESS_KEY_*，
+# 但 bucket / endpoint 默认指向 AGC 发行 bucket，需要该凭据具备目标 bucket 的 PutObject 权限。
+GENARRATIVE_AGC_PROJECT_SNAPSHOT_OSS_BUCKET="agc-dev"
+GENARRATIVE_AGC_PROJECT_SNAPSHOT_OSS_ENDPOINT="oss-rg-china-mainland.aliyuncs.com"
+GENARRATIVE_AGC_PROJECT_SNAPSHOT_OSS_ACCESS_KEY_ID=""
+GENARRATIVE_AGC_PROJECT_SNAPSHOT_OSS_ACCESS_KEY_SECRET=""
+
 # BgFilter 受限资源 worker。父 api-server / external-generation-worker 与唯一的
 # `GENARRATIVE_PROCESS_ROLE=bgfilter-worker` 进程必须使用同一个内部 Token。
 # `npm run dev` 与 `npm run dev:api-server` 都会自动带起并验活唯一 worker，不要再开第二个终端重复启动。

.gitea/workflows/project-ci.yml

@@ -7,6 +7,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: project-ci-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read
 

apps/admin-web/src/pages/AdminEditorAssetQueryPage.test.tsx

@@ -38,6 +38,7 @@ vi.mock('../api/adminApiClient', () => ({
 
 interface MockIntersectionObserverController {
   enter: (target: Element) => void;
+  enterAll: (targets: Element[]) => void;
   isObserved: (target: Element) => boolean;
 }
 
@@ -106,6 +107,25 @@ function installIntersectionObserverMock(): MockIntersectionObserverController {
         );
       });
     },
+    enterAll(targets) {
+      act(() => {
+        for (const target of targets) {
+          const record = observed.get(target);
+          if (!record) {
+            throw new Error('目标缩略图尚未进入 IntersectionObserver');
+          }
+          record.callback(
+            [
+              {
+                isIntersecting: true,
+                target,
+              } as IntersectionObserverEntry,
+            ],
+            record.observer,
+          );
+        }
+      });
+    },
     isObserved(target) {
       return observed.has(target);
     },
@@ -753,10 +773,10 @@ test('后台素材查询为大量同时可见的缩略图持续错峰换签', as
   const thumbnails = entries.map((entry) =>
     thumbnailElementForLabel(entry.label),
   );
-  thumbnails.forEach((thumbnail) => {
+  for (const thumbnail of thumbnails) {
     expect(observer.isObserved(thumbnail)).toBe(true);
-    observer.enter(thumbnail);
+  }
-  });
+  observer.enterAll(thumbnails);
   await act(async () => {
     await Promise.resolve();
   });
@@ -776,7 +796,7 @@ test('后台素材查询为大量同时可见的缩略图持续错峰换签', as
     await vi.advanceTimersByTimeAsync(200);
   });
   expect(getAdminAssetReadUrl).toHaveBeenCalledTimes(105);
-});
+}, 10_000);
 
 test('后台素材查询读取更多后为新进入可视区域的素材换签', async () => {
   const observer = installIntersectionObserverMock();

apps/ai-game-creator-shell/game-creator.config.json

@@ -15,7 +15,7 @@
     "autoCompactTokenLimit": 64000,
     "toolOutputTokenLimit": 12000,
     "requestTimeoutMs": 180000,
-    "maxRetries": 2,
+    "maxRetries": 10,
     "retryBackoffMs": 500
   },
   "agentLlm": {}

apps/ai-game-creator-shell/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@genarrative/ai-game-creator-shell",
   "private": true,
-  "version": "0.1.45",
+  "version": "0.1.47",
   "type": "module",
   "scripts": {
     "dev": "node scripts/start-tauri-dev.mjs",
@@ -47,6 +47,7 @@
     "@tauri-apps/plugin-dialog": "^2.7.2",
     "@tauri-apps/plugin-http": "^2.5.9",
     "@tauri-apps/plugin-opener": "~2",
+    "@tauri-apps/plugin-updater": "2.11.0",
     "@vitejs/plugin-react": "^5.0.4",
     "focus-trap-react": "^12.0.3",
     "lexical": "^0.47.0",
@@ -57,6 +58,7 @@
     "react-colorful": "^5.8.0",
     "react-dom": "^19.0.0",
     "react-markdown": "^10.1.0",
+    "react-window": "^1.8.11",
     "rehype-highlight": "^7.0.2",
     "remark-gfm": "^4.0.1",
     "vite": "^6.2.0",
@@ -70,6 +72,7 @@
     "@testing-library/user-event": "^14.6.1",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
+    "@types/react-window": "^1.8.8",
     "tailwindcss": "^4.1.14",
     "typescript": "~5.8.2",
     "vitest": "^0.34.6"

apps/ai-game-creator-shell/scripts/build-release.mjs

@@ -1,6 +1,7 @@
 import { spawnSync } from 'node:child_process';
 import { createHash } from 'node:crypto';
 import fs from 'node:fs';
+import os from 'node:os';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 
@@ -28,14 +29,30 @@ const cargoManifestPath = path.join(appRoot, 'src-tauri', 'Cargo.toml');
 const cargoLockPath = path.join(appRoot, 'src-tauri', 'Cargo.lock');
 const defaultOssBaseUrl =
   'https://agc-dev.oss-rg-china-mainland.aliyuncs.com/agc';
-const updateManifestUrl =
+
-  process.env.VITE_AGC_UPDATE_MANIFEST_URL?.trim() ||
+/**
-  `${process.env.AGC_UPDATE_OSS_BASE_URL?.trim() || defaultOssBaseUrl}/latest.json`;
+ * 发布渠道 → 目标平台。渠道名会进入 OSS 路径并烘焙进客户端端点，
+ * 一旦发布就不能改名（改名等于已发布客户端再也找不到更新）。
+ */
+const releaseChannels = {
+  'dev-win': 'windows',
+  'dev-mac': 'darwin',
+};
+
+function ossBaseUrl() {
+  return (
+    process.env.AGC_UPDATE_OSS_BASE_URL?.trim() || defaultOssBaseUrl
+  ).replace(/\/+$/u, '');
+}
 
 function readPackageJson() {
   return JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
 }
 
+function readReleaseNotes() {
+  return process.env.AGC_UPDATE_RELEASE_NOTES?.trim() || '';
+}
+
 export function compareVersions(left, right) {
   const leftParts = left.split('.').map(Number);
   const rightParts = right.split('.').map(Number);
@@ -66,26 +83,87 @@ export function nextPatchVersion(localVersion, remoteVersion) {
   return `${major}.${minor}.${patch + 1}`;
 }
 
-async function readRemoteVersion() {
+export function resolveReleasePlatform(target = releaseTarget) {
+  if (target.includes('windows')) return 'windows';
+  if (target.includes('apple-darwin')) return 'darwin';
+  if (target.includes('linux')) return 'linux';
+  throw new Error(`不支持的发布目标：${target}`);
+}
+
+export function resolveReleaseChannel(
+  env = process.env,
+  target = releaseTarget,
+) {
+  const platform = resolveReleasePlatform(target);
+  const requested = env.AGC_UPDATE_CHANNEL?.trim();
+  if (requested) {
+    const channelPlatform = releaseChannels[requested];
+    if (!channelPlatform) {
+      throw new Error(
+        `未知发布渠道 ${requested}；当前支持：${Object.keys(releaseChannels).join('、')}`,
+      );
+    }
+    if (channelPlatform !== platform) {
+      throw new Error(
+        `渠道 ${requested} 只能用于 ${channelPlatform} 目标，当前构建目标为 ${target}`,
+      );
+    }
+    return requested;
+  }
+  const defaultChannel = Object.entries(releaseChannels).find(
+    ([, channelPlatform]) => channelPlatform === platform,
+  )?.[0];
+  if (!defaultChannel) {
+    throw new Error(
+      `目标 ${target} 没有默认发布渠道，请显式设置 AGC_UPDATE_CHANNEL`,
+    );
+  }
+  return defaultChannel;
+}
+
+export function updateManifestUrl(channel = resolveReleaseChannel()) {
+  return `${ossBaseUrl()}/${channel}/latest.json`;
+}
+
+/**
+ * 更新插件按运行时平台键查找清单条目：universal macOS 包同时挂
+ * `darwin-aarch64` 与 `darwin-x86_64`，单架构目标只挂对应键。
+ */
+export function resolveManifestPlatformKeys(target = releaseTarget) {
+  if (target === 'universal-apple-darwin') {
+    return ['darwin-aarch64', 'darwin-x86_64'];
+  }
+  if (target === 'aarch64-apple-darwin') return ['darwin-aarch64'];
+  if (target === 'x86_64-apple-darwin') return ['darwin-x86_64'];
+  if (target.includes('windows')) {
+    return [
+      target.startsWith('aarch64') ? 'windows-aarch64' : 'windows-x86_64',
+    ];
+  }
+  throw new Error(`不支持的发布目标：${target}`);
+}
+
+async function readRemoteVersion(channel = resolveReleaseChannel()) {
+  const manifestUrl = updateManifestUrl(channel);
   let response;
   try {
-    response = await fetch(updateManifestUrl, {
+    response = await fetch(manifestUrl, {
       headers: { Accept: 'application/json' },
     });
   } catch (error) {
-    throw new Error(`读取 OSS 版本清单失败：${error.message}`);
+    throw new Error(`读取 OSS 渠道清单失败：${error.message}`);
   }
   if (response.status === 404) return null;
   if (!response.ok) {
-    throw new Error(`读取 OSS 版本清单失败：HTTP ${response.status}`);
+    throw new Error(`读取 OSS 渠道清单失败：HTTP ${response.status}`);
   }
   let manifest;
   try {
     manifest = await response.json();
   } catch (error) {
-    throw new Error(`OSS 版本清单不是有效 JSON：${error.message}`);
+    throw new Error(`OSS 渠道清单不是有效 JSON：${error.message}`);
   }
-  return parseVersion(manifest?.version, 'OSS版本清单 version');
+  return parseVersion(manifest?.version, 'OSS渠道清单 version');
 }
 
 function replaceVersionLine(source, version, pattern, label) {
@@ -94,8 +172,9 @@ function replaceVersionLine(source, version, pattern, label) {
 }
 
 export async function prepareReleaseVersion() {
+  const channel = resolveReleaseChannel();
   const localVersion = parseVersion(readPackageJson().version, '本地版本');
-  const remoteVersion = await readRemoteVersion();
+  const remoteVersion = await readRemoteVersion(channel);
   const requestedVersion = process.env.AGC_RELEASE_VERSION?.trim();
   const nextVersion = requestedVersion
     ? parseVersion(requestedVersion, '指定版本')
@@ -158,8 +237,8 @@ export async function prepareReleaseVersion() {
 
   console.log(
     requestedVersion
-      ? `[ai-game-creator-shell] 使用指定版本 ${nextVersion}（本地 ${localVersion} / OSS ${remoteVersion ?? '不存在'}）`
+      ? `[ai-game-creator-shell] 渠道 ${channel} 使用指定版本 ${nextVersion}（本地 ${localVersion} / OSS ${remoteVersion ?? '不存在'}）`
-      : `[ai-game-creator-shell] 版本 ${localVersion} / OSS ${remoteVersion ?? '不存在'} -> ${nextVersion}`,
+      : `[ai-game-creator-shell] 渠道 ${channel} 版本 ${localVersion} / OSS ${remoteVersion ?? '不存在'} -> ${nextVersion}`,
   );
   return nextVersion;
 }
@@ -187,18 +266,43 @@ export function buildTauriBuildArguments(
   ];
 }
 
+/** 渠道端点必须由构建期注入：官方更新插件的端点配置不支持运行期改渠道。 */
+export function createChannelConfig(channel = resolveReleaseChannel()) {
+  return {
+    plugins: {
+      updater: {
+        endpoints: [updateManifestUrl(channel)],
+      },
+    },
+  };
+}
+
+function writeChannelConfigFile(channel) {
+  const configPath = path.join(
+    os.tmpdir(),
+    `agc-tauri-channel-${channel}.json`,
+  );
+  fs.writeFileSync(
+    configPath,
+    `${JSON.stringify(createChannelConfig(channel), null, 2)}\n`,
+  );
+  return configPath;
+}
+
 export function runTauriBuild(args = []) {
+  const tauriArguments = buildTauriBuildArguments(args);
+  if (!tauriArguments.includes('--config') && !tauriArguments.includes('-c')) {
+    const channel = resolveReleaseChannel();
+    const configPath = writeChannelConfigFile(channel);
+    console.log(
+      `[ai-game-creator-shell] 渠道 ${channel} 端点配置：${configPath}`,
+    );
+    tauriArguments.push('--config', configPath);
+  }
   const npmCommand = process.platform === 'win32' ? 'npm.cmd' : 'npm';
   const result = spawnSync(
     npmCommand,
-    [
+    ['--prefix', '../..', 'exec', 'tauri', '--', ...tauriArguments],
-      '--prefix',
-      '../..',
-      'exec',
-      'tauri',
-      '--',
-      ...buildTauriBuildArguments(args),
-    ],
     { cwd: appRoot, stdio: 'inherit', shell: process.platform === 'win32' },
   );
   if (result.error) throw result.error;
@@ -216,10 +320,14 @@ function listFiles(root) {
 function artifactPriority(filePath) {
   const name = path.basename(filePath).toLowerCase();
   if (releaseTarget.includes('windows')) return name.endsWith('.exe') ? 0 : 99;
-  if (process.platform === 'darwin') return name.endsWith('.dmg') ? 0 : 99;
+  // 更新链路要的是 updater 产物（macOS 为 .app.tar.gz），dmg 只作人工分发。
-  if (name.endsWith('.appimage')) return 0;
+  if (releaseTarget.includes('apple-darwin')) {
-  if (name.endsWith('.deb')) return 1;
+    return name.endsWith('.app.tar.gz') ? 0 : 99;
-  if (name.endsWith('.rpm')) return 2;
+  }
+  if (name.endsWith('.appimage.tar.gz')) return 0;
+  if (name.endsWith('.appimage')) return 1;
+  if (name.endsWith('.deb')) return 2;
+  if (name.endsWith('.rpm')) return 3;
   return 99;
 }
 
@@ -242,36 +350,100 @@ export function selectReleaseArtifact(files) {
   );
 }
 
-export function createUpdateManifest(artifactPath) {
+function readUpdaterSignature(artifactPath) {
+  const signaturePath = `${artifactPath}.sig`;
+  if (!fs.existsSync(signaturePath)) {
+    throw new Error(
+      `缺少更新包签名：${signaturePath}；需要 bundle.createUpdaterArtifacts 与签名私钥（TAURI_SIGNING_PRIVATE_KEY / TAURI_SIGNING_PRIVATE_KEY_PATH）`,
+    );
+  }
+  const signature = fs.readFileSync(signaturePath, 'utf8').trim();
+  if (!signature) throw new Error(`更新包签名为空：${signaturePath}`);
+  return signature;
+}
+
+export function createUpdateManifest(
+  artifactPath,
+  {
+    channel = resolveReleaseChannel(),
+    target = releaseTarget,
+    publishedAt = new Date().toISOString(),
+  } = {},
+) {
+  const signature = readUpdaterSignature(artifactPath);
+  const version = readPackageJson().version;
+  const fileName = path.basename(artifactPath);
+  const url = `${ossBaseUrl()}/${channel}/${encodeURIComponent(version)}/${encodeURIComponent(fileName)}`;
+  const platforms = {};
+  for (const key of resolveManifestPlatformKeys(target)) {
+    platforms[key] = { signature, url };
+  }
+  const notes = readReleaseNotes();
+  return {
+    version,
+    ...(notes ? { notes } : {}),
+    pub_date: publishedAt,
+    platforms,
+  };
+}
+
+/** 旧协议（sha256）清单：只用于把已发布客户端带到新渠道协议，一个版本周期后整条删除。 */
+export function createLegacyUpdateManifest(
+  artifactPath,
+  { channel = resolveReleaseChannel() } = {},
+) {
   const bytes = fs.readFileSync(artifactPath);
   const version = readPackageJson().version;
   const fileName = path.basename(artifactPath);
-  const baseUrl = (
+  const notes = readReleaseNotes();
-    process.env.AGC_UPDATE_OSS_BASE_URL?.trim() || defaultOssBaseUrl
-  ).replace(/\/+$/u, '');
-  const encodedFileName = encodeURIComponent(fileName).replace(/%2F/giu, '/');
   return {
     version,
-    downloadUrl: `${baseUrl}/${encodeURIComponent(version)}/${encodedFileName}`,
+    downloadUrl: `${ossBaseUrl()}/${channel}/${encodeURIComponent(version)}/${encodeURIComponent(fileName)}`,
     sha256: createHash('sha256').update(bytes).digest('hex'),
     size: bytes.length,
-    ...(process.env.AGC_UPDATE_RELEASE_NOTES?.trim()
+    ...(notes ? { releaseNotes: notes } : {}),
-      ? { releaseNotes: process.env.AGC_UPDATE_RELEASE_NOTES.trim() }
-      : {}),
   };
 }
 
 export function generateUpdateManifest() {
+  const channel = resolveReleaseChannel();
   const artifact = selectReleaseArtifact(listFiles(bundleRoot));
   if (!artifact) {
     throw new Error(`未找到可发布的 AGC 安装包：${bundleRoot}`);
   }
-  const manifest = createUpdateManifest(artifact);
+  const manifest = createUpdateManifest(artifact, { channel });
   const manifestPath = path.join(bundleRoot, 'latest.json');
   fs.writeFileSync(manifestPath, `${JSON.stringify(manifest, null, 2)}\n`);
-  console.log(`[ai-game-creator-shell] 已生成 ${manifestPath}`);
+  const legacyManifest =
+    channel === 'dev-win'
+      ? createLegacyUpdateManifest(artifact, { channel })
+      : null;
+  const legacyManifestPath = legacyManifest
+    ? path.join(bundleRoot, 'legacy-latest.json')
+    : null;
+  if (legacyManifest && legacyManifestPath) {
+    fs.writeFileSync(
+      legacyManifestPath,
+      `${JSON.stringify(legacyManifest, null, 2)}\n`,
+    );
+  }
+  console.log(
+    `[ai-game-creator-shell] 渠道 ${channel}：已生成 ${manifestPath}`,
+  );
   console.log(`[ai-game-creator-shell] 安装包：${artifact}`);
-  return { artifact, manifestPath, manifest };
+  if (legacyManifestPath) {
+    console.log(
+      `[ai-game-creator-shell] 旧协议迁移清单：${legacyManifestPath}`,
+    );
+  }
+  return {
+    channel,
+    artifact,
+    manifest,
+    manifestPath,
+    legacyManifest,
+    legacyManifestPath,
+  };
 }
 
 if (

apps/ai-game-creator-shell/scripts/build-release.test.mjs

@@ -1,24 +1,61 @@
 import assert from 'node:assert/strict';
-import { readFileSync } from 'node:fs';
+import { mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
 import { test } from 'node:test';
+import { fileURLToPath } from 'node:url';
 
 import {
   compareVersions,
+  createChannelConfig,
+  createLegacyUpdateManifest,
   createUpdateManifest,
   nextPatchVersion,
+  resolveManifestPlatformKeys,
+  resolveReleaseChannel,
   selectReleaseArtifact,
+  updateManifestUrl,
 } from './build-release.mjs';
 
-test('selects an explicit release artifact when configured', () => {
+const windowsTarget = 'x86_64-pc-windows-msvc';
-  const artifactPath = new URL('../package.json', import.meta.url).pathname;
+const universalTarget = 'universal-apple-darwin';
-  const previous = process.env.AGC_UPDATE_ARTIFACT;
+
-  process.env.AGC_UPDATE_ARTIFACT = artifactPath;
+function withEnv(overrides, run) {
-  try {
+  const previous = new Map();
-    assert.equal(selectReleaseArtifact([]), artifactPath);
+  for (const [key, value] of Object.entries(overrides)) {
-  } finally {
+    previous.set(key, process.env[key]);
-    if (previous === undefined) delete process.env.AGC_UPDATE_ARTIFACT;
+    if (value === undefined) delete process.env[key];
-    else process.env.AGC_UPDATE_ARTIFACT = previous;
+    else process.env[key] = value;
   }
+  try {
+    return run();
+  } finally {
+    for (const [key, value] of previous) {
+      if (value === undefined) delete process.env[key];
+      else process.env[key] = value;
+    }
+  }
+}
+
+function withSignedArtifact(fileName, run) {
+  const directory = mkdtempSync(path.join(os.tmpdir(), 'agc-release-test-'));
+  try {
+    const artifact = path.join(directory, fileName);
+    writeFileSync(artifact, 'installation package');
+    writeFileSync(`${artifact}.sig`, 'signature-content\n');
+    return run(artifact);
+  } finally {
+    rmSync(directory, { recursive: true, force: true });
+  }
+}
+
+test('selects an explicit release artifact when configured', () => {
+  const artifactPath = fileURLToPath(
+    new URL('../package.json', import.meta.url),
+  );
+  withEnv({ AGC_UPDATE_ARTIFACT: artifactPath }, () => {
+    assert.equal(selectReleaseArtifact([]), artifactPath);
+  });
 });
 
 test('does not select unsupported files', () => {
@@ -28,47 +65,123 @@ test('does not select unsupported files', () => {
   );
 });
 
-test('manifest contains version, download URL and integrity fields', () => {
+test('resolves the channel from the target platform and rejects mismatches', () => {
-  const manifest = createUpdateManifest(
+  assert.equal(resolveReleaseChannel({}, windowsTarget), 'dev-win');
-    new URL('../package.json', import.meta.url).pathname,
+  assert.equal(resolveReleaseChannel({}, universalTarget), 'dev-mac');
+  assert.equal(
+    resolveReleaseChannel({ AGC_UPDATE_CHANNEL: 'dev-mac' }, universalTarget),
+    'dev-mac',
   );
-  assert.match(manifest.version, /^\d+\.\d+\.\d+$/u);
+  assert.throws(
-  assert.match(
+    () =>
-    manifest.downloadUrl,
+      resolveReleaseChannel({ AGC_UPDATE_CHANNEL: 'dev-mac' }, windowsTarget),
-    new RegExp(`/agc/${manifest.version}/package\\.json$`, 'u'),
+    /只能用于 darwin 目标/u,
+  );
+  assert.throws(
+    () =>
+      resolveReleaseChannel({ AGC_UPDATE_CHANNEL: 'beta-win' }, windowsTarget),
+    /未知发布渠道/u,
   );
-  assert.equal(manifest.sha256.length, 64);
-  assert.equal(typeof manifest.size, 'number');
 });
 
-test('manifest preserves multiline release notes', () => {
+test('channel manifest URL and build-time endpoint follow the channel', () => {
-  const previous = process.env.AGC_UPDATE_RELEASE_NOTES;
+  withEnv({ AGC_UPDATE_OSS_BASE_URL: undefined }, () => {
-  process.env.AGC_UPDATE_RELEASE_NOTES = '第一行\n第二行\r\n第三行';
+    assert.equal(
-  try {
+      updateManifestUrl('dev-win'),
-    const manifest = createUpdateManifest(
+      'https://agc-dev.oss-rg-china-mainland.aliyuncs.com/agc/dev-win/latest.json',
-      new URL('../package.json', import.meta.url).pathname,
+    );
+    assert.deepEqual(createChannelConfig('dev-mac'), {
+      plugins: {
+        updater: {
+          endpoints: [
+            'https://agc-dev.oss-rg-china-mainland.aliyuncs.com/agc/dev-mac/latest.json',
+          ],
+        },
+      },
+    });
+  });
+});
+
+test('universal macOS builds publish one artifact under both platform keys', () => {
+  assert.deepEqual(resolveManifestPlatformKeys(universalTarget), [
+    'darwin-aarch64',
+    'darwin-x86_64',
+  ]);
+  assert.deepEqual(resolveManifestPlatformKeys(windowsTarget), [
+    'windows-x86_64',
+  ]);
+});
+
+test('channel manifest carries version, platform keys and signature', () => {
+  withSignedArtifact('陶泥儿_0.1.48_x64-setup.exe', (artifact) => {
+    withEnv({ AGC_UPDATE_RELEASE_NOTES: '修复与改进' }, () => {
+      const manifest = createUpdateManifest(artifact, {
+        channel: 'dev-win',
+        target: windowsTarget,
+        publishedAt: '2026-09-17T00:00:00.000Z',
+      });
+      assert.match(manifest.version, /^\d+\.\d+\.\d+$/u);
+      assert.equal(manifest.notes, '修复与改进');
+      assert.equal(manifest.pub_date, '2026-09-17T00:00:00.000Z');
+      assert.deepEqual(Object.keys(manifest.platforms), ['windows-x86_64']);
+      assert.equal(
+        manifest.platforms['windows-x86_64'].signature,
+        'signature-content',
+      );
+      assert.match(
+        manifest.platforms['windows-x86_64'].url,
+        new RegExp(`/agc/dev-win/${manifest.version}/`, 'u'),
+      );
+    });
+  });
+});
+
+test('missing signature fails the channel manifest closed', () => {
+  const directory = mkdtempSync(path.join(os.tmpdir(), 'agc-release-test-'));
+  try {
+    const artifact = path.join(directory, '陶泥儿_0.1.48_x64-setup.exe');
+    writeFileSync(artifact, 'installation package');
+    assert.throws(
+      () =>
+        createUpdateManifest(artifact, {
+          channel: 'dev-win',
+          target: windowsTarget,
+        }),
+      /缺少更新包签名/u,
     );
-    assert.equal(manifest.releaseNotes, '第一行\n第二行\r\n第三行');
   } finally {
-    if (previous === undefined) delete process.env.AGC_UPDATE_RELEASE_NOTES;
+    rmSync(directory, { recursive: true, force: true });
-    else process.env.AGC_UPDATE_RELEASE_NOTES = previous;
   }
 });
 
-test('next release version follows the higher local or OSS version', () => {
+test('legacy manifest keeps the sha256 contract of published clients', () => {
+  withSignedArtifact('陶泥儿_0.1.48_x64-setup.exe', (artifact) => {
+    const legacy = createLegacyUpdateManifest(artifact, {
+      channel: 'dev-win',
+    });
+    assert.match(legacy.version, /^\d+\.\d+\.\d+$/u);
+    assert.equal(legacy.sha256.length, 64);
+    assert.equal(legacy.size, 'installation package'.length);
+    assert.match(legacy.downloadUrl, /\/agc\/dev-win\/[\d.]+\//u);
+  });
+});
+
+test('next release version follows the higher local or channel version', () => {
   assert.equal(compareVersions('0.1.15', '0.1.12'), 1);
   assert.equal(nextPatchVersion('0.1.12', '0.1.15'), '0.1.16');
   assert.equal(nextPatchVersion('0.1.18', '0.1.15'), '0.1.19');
   assert.equal(nextPatchVersion('0.1.12', null), '0.1.13');
 });
 
-test('release upload forces overwrite for versioned artifact and latest pointer', () => {
+test('release upload forces overwrite for artifact, signature and channel pointers', () => {
   const source = readFileSync(
     new URL('./release-upload.mjs', import.meta.url),
     'utf8',
   );
   assert.equal(
-    (source.match(/runOssutil\(\['cp', '--force'/gu) ?? []).length,
+    (source.match(/runOssutil\(\[\s*'cp',\s*'--force'/gu) ?? []).length,
-    2,
+    4,
   );
+  assert.match(source, /agc\/\$\{channel\}\/latest\.json/u);
+  assert.match(source, /agc\/latest\.json/u);
 });

apps/ai-game-creator-shell/scripts/check-config.mjs

@@ -121,6 +121,10 @@ const allowedUncalledTauriCommands = [
   'open_game_creator_launcher_window',
   'open_game_creator_workspace_window',
   'read_direct_project_conversation',
+  // 项目定时快照上传只在 Rust 侧触发（周期定时器 / 工作区窗口关闭）与排障调用；
+  // 按产品口径不做客户端可见界面，因此同 `open_game_creator_*_window` 一样按 native-only 登记。
+  'read_local_project_snapshot_state',
+  'sync_local_project_snapshot',
   'reset_design_agent_session',
   'stop_local_game_preview_if_matches',
   'start_game_creator_external_mcp',

apps/ai-game-creator-shell/scripts/deterministic-lane-defense-provider.mjs

@@ -724,6 +724,7 @@ function canvasAssetCall(agentId) {
     assetKind: 'art-spritesheet',
     assetLabel: '游戏首版核心美术素材',
     replaceExisting: false,
+    sliceMode: 'connected-components',
   });
 }
 
@@ -2691,7 +2692,7 @@ function createDeterministicCanvasFixture(apiKey) {
           'deterministic spritesheet fixture',
         model: 'deterministic-canvas-v1',
         provider: 'deterministic-loopback',
-        sliceLayout: 'grid-2x2',
+        sliceMode: 'connected-components',
         spritesheetResource: {
           resourceId,
           projectId,

apps/ai-game-creator-shell/scripts/dev-feature-flags.mjs

@@ -0,0 +1,20 @@
+/**
+ * `agc` 开发启动下发给 Vite 的客户端特性开关默认值。
+ *
+ * 开发态默认关闭客户端更新检查：`npm run agc` / `agc:serve` 启动的客户端不请求 OSS
+ * 更新清单，也不显示更新入口。需要联调更新流程时显式传
+ * `VITE_AGC_ENABLE_APP_UPDATE_CHECK=1`；此处不覆盖已经显式配置的取值。
+ */
+const agcAppUpdateCheckEnvKey = 'VITE_AGC_ENABLE_APP_UPDATE_CHECK';
+
+function withAgcDevFeatureFlags(env = process.env) {
+  if (String(env[agcAppUpdateCheckEnvKey] ?? '').trim()) {
+    return env;
+  }
+  return {
+    ...env,
+    [agcAppUpdateCheckEnvKey]: '0',
+  };
+}
+
+export { agcAppUpdateCheckEnvKey, withAgcDevFeatureFlags };

apps/ai-game-creator-shell/scripts/release-oss.mjs

@@ -0,0 +1,27 @@
+/**
+ * 发布上传的 OSS 命令行整理：把 ossutil 参数与凭据整理成可执行或可打印的形式，
+ * 便于在 dry-run 下核对将要执行的上传，同时保证任何输出都不回显凭据明文。
+ */
+const redactedCredential = '<redacted>';
+
+export function readReleaseDryRun(env = process.env) {
+  const value = env.AGC_RELEASE_DRY_RUN?.trim().toLowerCase();
+  return value === '1' || value === 'true';
+}
+
+function quoteArgument(value) {
+  return /[\s"']/u.test(value) ? JSON.stringify(value) : value;
+}
+
+export function formatOssutilCommand({ binary, args, endpoint, credentials }) {
+  const parts = [binary, ...args, '--endpoint', endpoint];
+  if (credentials) {
+    parts.push(
+      '--access-key-id',
+      redactedCredential,
+      '--access-key-secret',
+      redactedCredential,
+    );
+  }
+  return parts.map(quoteArgument).join(' ');
+}

apps/ai-game-creator-shell/scripts/release-oss.test.mjs

@@ -0,0 +1,44 @@
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { test } from 'node:test';
+
+import { formatOssutilCommand, readReleaseDryRun } from './release-oss.mjs';
+
+test('dry run only accepts explicit truthy values', () => {
+  assert.equal(readReleaseDryRun({}), false);
+  assert.equal(readReleaseDryRun({ AGC_RELEASE_DRY_RUN: '1' }), true);
+  assert.equal(readReleaseDryRun({ AGC_RELEASE_DRY_RUN: ' true ' }), true);
+  assert.equal(readReleaseDryRun({ AGC_RELEASE_DRY_RUN: '0' }), false);
+  assert.equal(readReleaseDryRun({ AGC_RELEASE_DRY_RUN: '' }), false);
+});
+
+test('printed upload command keeps arguments and hides credentials', () => {
+  const command = formatOssutilCommand({
+    binary: 'ossutil',
+    args: [
+      'cp',
+      '--force',
+      '陶泥儿 0.1.48.exe',
+      'oss://agc-dev/agc/dev-win/x.exe',
+    ],
+    endpoint: 'oss-rg-china-mainland.aliyuncs.com',
+    credentials: true,
+  });
+  assert.match(command, /^ossutil cp --force /u);
+  assert.match(command, /"陶泥儿 0\.1\.48\.exe"/u);
+  assert.match(command, /oss:\/\/agc-dev\/agc\/dev-win\/x\.exe/u);
+  assert.match(
+    command,
+    /--access-key-id <redacted> --access-key-secret <redacted>/u,
+  );
+});
+
+test('uploader gates every ossutil call behind the dry run switch', () => {
+  const source = readFileSync(
+    new URL('./release-upload.mjs', import.meta.url),
+    'utf8',
+  );
+  assert.match(source, /const dryRun = readReleaseDryRun\(\);/u);
+  assert.match(source, /if \(dryRun\) \{/u);
+  assert.match(source, /dry-run：未写入任何 OSS 对象/u);
+});

apps/ai-game-creator-shell/scripts/release-upload.mjs

@@ -1,6 +1,8 @@
 import { spawnSync } from 'node:child_process';
 import path from 'node:path';
 
+import { formatOssutilCommand, readReleaseDryRun } from './release-oss.mjs';
+
 const bucket = process.env.AGC_OSS_BUCKET?.trim() || 'agc-dev';
 const endpoint =
   process.env.AGC_OSS_ENDPOINT?.trim() || 'oss-rg-china-mainland.aliyuncs.com';
@@ -8,6 +10,7 @@ if (!/^[a-z0-9][a-z0-9.-]{1,62}$/u.test(bucket) || /[\r\n\0]/u.test(endpoint)) {
   throw new Error('OSS bucket 或 endpoint 配置无效');
 }
 process.env.AGC_UPDATE_OSS_BASE_URL ||= `https://${bucket}.${endpoint}/agc`;
+const dryRun = readReleaseDryRun();
 
 const { generateUpdateManifest, prepareReleaseVersion, runTauriBuild } =
   await import('./build-release.mjs');
@@ -19,6 +22,18 @@ function runOssutil(args) {
   if (Boolean(accessKeyId) !== Boolean(accessKeySecret)) {
     throw new Error('OSS AccessKey ID 和 Secret 必须同时提供');
   }
+  if (dryRun) {
+    // 演练：只打印将要执行的上传，凭据以占位符呈现，不写入 OSS。
+    console.log(
+      `[dry-run] ${formatOssutilCommand({
+        binary,
+        args,
+        endpoint,
+        credentials: Boolean(accessKeyId),
+      })}`,
+    );
+    return;
+  }
   const credentialArgs = accessKeyId
     ? ['--access-key-id', accessKeyId, '--access-key-secret', accessKeySecret]
     : [];
@@ -38,11 +53,40 @@ function runOssutil(args) {
 
 await prepareReleaseVersion();
 runTauriBuild([]);
-const { artifact, manifestPath, manifest } = generateUpdateManifest();
+const { artifact, channel, legacyManifestPath, manifest, manifestPath } =
-const artifactKey = `agc/${manifest.version}/${path.basename(artifact)}`;
+  generateUpdateManifest();
+const artifactKey = `agc/${channel}/${manifest.version}/${path.basename(artifact)}`;
 // Jenkins/ossutil 默认会在目标对象已存在时交互询问并按默认值跳过；
 // 发布清单是固定的 latest 指针，必须显式覆盖，否则流水线会误报成功但远端仍保留旧版本。
 runOssutil(['cp', '--force', artifact, `oss://${bucket}/${artifactKey}`]);
-runOssutil(['cp', '--force', manifestPath, `oss://${bucket}/agc/latest.json`]);
+runOssutil([
+  'cp',
+  '--force',
+  `${artifact}.sig`,
+  `oss://${bucket}/${artifactKey}.sig`,
+]);
+runOssutil([
+  'cp',
+  '--force',
+  manifestPath,
+  `oss://${bucket}/agc/${channel}/latest.json`,
+]);
 console.log(`[ai-game-creator-shell] 已上传 oss://${bucket}/${artifactKey}`);
-console.log(`[ai-game-creator-shell] 已上传 oss://${bucket}/agc/latest.json`);
+console.log(
+  `[ai-game-creator-shell] 已上传 oss://${bucket}/agc/${channel}/latest.json`,
+);
+if (legacyManifestPath) {
+  // 迁移桥：让仍走旧 sha256 清单的已发布客户端升级到新协议，一个版本周期后删除。
+  runOssutil([
+    'cp',
+    '--force',
+    legacyManifestPath,
+    `oss://${bucket}/agc/latest.json`,
+  ]);
+  console.log(
+    `[ai-game-creator-shell] 已上传迁移指针 oss://${bucket}/agc/latest.json`,
+  );
+}
+if (dryRun) {
+  console.log('[ai-game-creator-shell] dry-run：未写入任何 OSS 对象');
+}

apps/ai-game-creator-shell/scripts/start-dev-server.mjs

@@ -3,6 +3,7 @@ import http from 'node:http';
 import net from 'node:net';
 import { fileURLToPath } from 'node:url';
 
+import { withAgcDevFeatureFlags } from './dev-feature-flags.mjs';
 import { resolveAgcDevEndpoint, withAgcDevEndpointEnv } from './dev-port.mjs';
 
 const appRoot = fileURLToPath(new URL('..', import.meta.url));
@@ -104,7 +105,7 @@ const child = spawn(
   ],
   {
     cwd: appRoot,
-    env: withAgcDevEndpointEnv(endpoint),
+    env: withAgcDevFeatureFlags(withAgcDevEndpointEnv(endpoint)),
     stdio: 'inherit',
     // Node 18.20+/20+/24 on Windows rejects spawning .cmd (npm.cmd) without a shell (EINVAL).
     shell: true,

apps/ai-game-creator-shell/scripts/start-dev-stack.mjs

@@ -11,6 +11,7 @@ import {
   stopWindowsProcessTree,
   stopWindowsWorktreeProcesses,
 } from '../../../scripts/dev-windows-process.mjs';
+import { withAgcDevFeatureFlags } from './dev-feature-flags.mjs';
 import {
   agcVitePortEnvKey,
   readAgcDevEndpoint,
@@ -978,7 +979,10 @@ async function startVite(apiTarget, endpoint = readAgcDevEndpoint()) {
       '--port',
       String(endpoint.port),
     ],
-    { cwd: appRoot, env: withAgcDevEndpointEnv(endpoint) },
+    {
+      cwd: appRoot,
+      env: withAgcDevFeatureFlags(withAgcDevEndpointEnv(endpoint)),
+    },
   );
 }
 

apps/ai-game-creator-shell/src-tauri/Cargo.lock

@@ -814,6 +814,16 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "core-foundation"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.10.1"
@@ -837,7 +847,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "064badf302c3194842cf2c5d61f56cc88e54a759313879cdf03abdd27d0c3b97"
 dependencies = [
  "bitflags 2.13.0",
- "core-foundation",
+ "core-foundation 0.10.1",
  "core-graphics-types",
  "foreign-types 0.5.0",
  "libc",
@@ -850,7 +860,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d44a101f213f6c4cdc1853d4b78aef6db6bdfa3468798cc1d9912f4735013eb"
 dependencies = [
  "bitflags 2.13.0",
- "core-foundation",
+ "core-foundation 0.10.1",
  "libc",
 ]
 
@@ -1405,6 +1415,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "filetime"
+version = "0.2.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c287a33c7f0a620c38e641e7f60827713987b3c0f26e8ddc9462cc69cf75759"
+dependencies = [
+ "cfg-if",
+ "libc",
+]
+
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.9"
@@ -1725,7 +1745,7 @@ dependencies = [
 
 [[package]]
 name = "genarrative-ai-game-creator-shell"
-version = "0.1.45"
+version = "0.1.47"
 dependencies = [
  "agent-runtime-core",
  "axum",
@@ -1747,7 +1767,6 @@ dependencies = [
  "oxc_parser",
  "oxc_semantic",
  "oxc_span",
- "percent-encoding",
  "platform-agent",
  "platform-llm",
  "portable-pty",
@@ -1766,6 +1785,7 @@ dependencies = [
  "tauri-plugin-dialog",
  "tauri-plugin-http",
  "tauri-plugin-opener",
+ "tauri-plugin-updater",
  "tempfile",
  "tokio",
  "toml 0.8.2",
@@ -1776,7 +1796,7 @@ dependencies = [
  "url",
  "uuid",
  "windows-sys 0.61.2",
- "zip",
+ "zip 2.4.2",
 ]
 
 [[package]]
@@ -2220,9 +2240,11 @@ dependencies = [
  "percent-encoding",
  "pin-project-lite",
  "socket2",
+ "system-configuration",
  "tokio",
  "tower-service",
  "tracing",
+ "windows-registry",
 ]
 
 [[package]]
@@ -2506,6 +2528,36 @@ dependencies = [
  "windows-sys 0.45.0",
 ]
 
+[[package]]
+name = "jni"
+version = "0.22.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5efd9a482cf3a427f00d6b35f14332adc7902ce91efb778580e180ff90fa3498"
+dependencies = [
+ "cfg-if",
+ "combine",
+ "jni-macros",
+ "jni-sys 0.4.1",
+ "log",
+ "simd_cesu8",
+ "thiserror 2.0.18",
+ "walkdir",
+ "windows-link 0.2.1",
+]
+
+[[package]]
+name = "jni-macros"
+version = "0.22.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a00109accc170f0bdb141fed3e393c565b6f5e072365c3bd58f5b062591560a3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "simd_cesu8",
+ "syn 2.0.118",
+]
+
 [[package]]
 name = "jni-sys"
 version = "0.3.1"
@@ -2819,6 +2871,12 @@ dependencies = [
  "unicase",
 ]
 
+[[package]]
+name = "minisign-verify"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22f9645cb765ea72b8111f36c522475d2daa0d22c957a9826437e97534bc4e9e"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.8.9"
@@ -3234,6 +3292,18 @@ dependencies = [
  "objc2-core-foundation",
 ]
 
+[[package]]
+name = "objc2-osa-kit"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f112d1746737b0da274ef79a23aac283376f335f4095a083a267a082f21db0c0"
+dependencies = [
+ "bitflags 2.13.0",
+ "objc2",
+ "objc2-app-kit",
+ "objc2-foundation",
+]
+
 [[package]]
 name = "objc2-quartz-core"
 version = "0.3.2"
@@ -3378,6 +3448,20 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "osakit"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "732c71caeaa72c065bb69d7ea08717bd3f4863a4f451402fc9513e29dbd5261b"
+dependencies = [
+ "objc2",
+ "objc2-foundation",
+ "objc2-osa-kit",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.18",
+]
+
 [[package]]
 name = "outref"
 version = "0.5.2"
@@ -4360,15 +4444,20 @@ dependencies = [
  "http-body",
  "http-body-util",
  "hyper",
+ "hyper-rustls",
  "hyper-util",
  "js-sys",
  "log",
  "percent-encoding",
  "pin-project-lite",
+ "rustls",
+ "rustls-pki-types",
+ "rustls-platform-verifier",
  "serde",
  "serde_json",
  "sync_wrapper",
  "tokio",
+ "tokio-rustls",
  "tokio-util",
  "tower",
  "tower-http",
@@ -4482,6 +4571,33 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "rustls-platform-verifier"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d1e2536ce4f35f4846aa13bff16bd0ff40157cdb14cc056c7b14ba41233ba0"
+dependencies = [
+ "core-foundation 0.10.1",
+ "core-foundation-sys",
+ "jni 0.22.4",
+ "log",
+ "once_cell",
+ "rustls",
+ "rustls-native-certs",
+ "rustls-platform-verifier-android",
+ "rustls-webpki",
+ "security-framework",
+ "security-framework-sys",
+ "webpki-root-certs",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "rustls-platform-verifier-android"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f87165f0995f63a9fbeea62b64d10b4d9d8e78ec6d7d51fb2125fda7bb36788f"
+
 [[package]]
 name = "rustls-webpki"
 version = "0.103.13"
@@ -4609,7 +4725,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b7f4bc775c73d9a02cde8bf7b2ec4c9d12743edf609006c7facc23998404cd1d"
 dependencies = [
  "bitflags 2.13.0",
- "core-foundation",
+ "core-foundation 0.10.1",
  "core-foundation-sys",
  "libc",
  "security-framework-sys",
@@ -4952,6 +5068,22 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "703d5c7ef118737c72f1af64ad2f6f8c5e1921f818cdcb97b8fe6fc69bf66214"
 
+[[package]]
+name = "simd_cesu8"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11031e251abf8611c80f460e19dbdeb54a66db918e49c65a7065b46ac7aec520"
+dependencies = [
+ "rustc_version",
+ "simdutf8",
+]
+
+[[package]]
+name = "simdutf8"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
+
 [[package]]
 name = "similar"
 version = "2.7.0"
@@ -5175,6 +5307,27 @@ dependencies = [
  "syn 2.0.118",
 ]
 
+[[package]]
+name = "system-configuration"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a13f3d0daba03132c0aa9767f98351b3488edc2c100cda2d2ec2b04f3d8d3c8b"
+dependencies = [
+ "bitflags 2.13.0",
+ "core-foundation 0.9.4",
+ "system-configuration-sys",
+]
+
+[[package]]
+name = "system-configuration-sys"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "system-deps"
 version = "6.2.2"
@@ -5196,7 +5349,7 @@ checksum = "d1c93047acf68669466a34690ac58cca7010bd1b201e1ec86f1fd0a75d3dd4a9"
 dependencies = [
  "bitflags 2.13.0",
  "block2",
- "core-foundation",
+ "core-foundation 0.10.1",
  "core-graphics",
  "crossbeam-channel",
  "dbus",
@@ -5206,7 +5359,7 @@ dependencies = [
  "gdkwayland-sys",
  "gdkx11-sys",
  "gtk",
- "jni",
+ "jni 0.21.1",
  "libc",
  "log",
  "ndk",
@@ -5239,6 +5392,17 @@ dependencies = [
  "syn 2.0.118",
 ]
 
+[[package]]
+name = "tar"
+version = "0.4.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f6221d9a6003c78398e3b239969f352578258df48c8eb051caadae0015bc840"
+dependencies = [
+ "filetime",
+ "libc",
+ "xattr",
+]
+
 [[package]]
 name = "target-lexicon"
 version = "0.12.16"
@@ -5262,7 +5426,7 @@ dependencies = [
  "gtk",
  "heck 0.5.0",
  "http",
- "jni",
+ "jni 0.21.1",
  "libc",
  "log",
  "mime",
@@ -5477,6 +5641,39 @@ dependencies = [
  "zbus",
 ]
 
+[[package]]
+name = "tauri-plugin-updater"
+version = "2.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b28d8cabdeb0564f03ae261963de4bc3d98321cd3d213e76a81b7d344e5df606"
+dependencies = [
+ "base64 0.22.1",
+ "dirs",
+ "flate2",
+ "futures-util",
+ "http",
+ "infer",
+ "log",
+ "minisign-verify",
+ "osakit",
+ "percent-encoding",
+ "reqwest 0.13.4",
+ "rustls",
+ "semver",
+ "serde",
+ "serde_json",
+ "tar",
+ "tauri",
+ "tauri-plugin",
+ "tempfile",
+ "thiserror 2.0.18",
+ "time",
+ "tokio",
+ "url",
+ "windows-sys 0.60.2",
+ "zip 4.6.1",
+]
+
 [[package]]
 name = "tauri-runtime"
 version = "2.11.3"
@@ -5487,7 +5684,7 @@ dependencies = [
  "dpi",
  "gtk",
  "http",
- "jni",
+ "jni 0.21.1",
  "objc2",
  "objc2-ui-kit",
  "objc2-web-kit",
@@ -5510,7 +5707,7 @@ checksum = "fe41e015bf8fc4d6477ff4926a0ef769dc64ff34c7b0038b6f7cacae892acb5c"
 dependencies = [
  "gtk",
  "http",
- "jni",
+ "jni 0.21.1",
  "log",
  "objc2",
  "objc2-app-kit",
@@ -6586,6 +6783,15 @@ dependencies = [
  "system-deps",
 ]
 
+[[package]]
+name = "webpki-root-certs"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b96554aa2acc8ccdb7e1c9a58a7a68dd5d13bccc69cd124cb09406db612a1c9b"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "webpki-roots"
 version = "1.0.9"
@@ -7192,7 +7398,7 @@ dependencies = [
  "gtk",
  "http",
  "javascriptcore-rs",
- "jni",
+ "jni 0.21.1",
  "libc",
  "ndk",
  "objc2",
@@ -7256,6 +7462,16 @@ version = "0.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea6fc2961e4ef194dcbfe56bb845534d0dc8098940c7e5c012a258bfec6701bd"
 
+[[package]]
+name = "xattr"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32e45ad4206f6d2479085147f02bc2ef834ac85886624a23575ae137c8aa8156"
+dependencies = [
+ "libc",
+ "rustix",
+]
+
 [[package]]
 name = "yoke"
 version = "0.8.3"
@@ -7437,6 +7653,18 @@ dependencies = [
  "zopfli",
 ]
 
+[[package]]
+name = "zip"
+version = "4.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "caa8cd6af31c3b31c6631b8f483848b91589021b28fffe50adada48d4f4d2ed1"
+dependencies = [
+ "arbitrary",
+ "crc32fast",
+ "indexmap 2.14.0",
+ "memchr",
+]
+
 [[package]]
 name = "zmij"
 version = "1.0.21"

apps/ai-game-creator-shell/src-tauri/Cargo.toml

@@ -1,11 +1,14 @@
 [package]
 name = "genarrative-ai-game-creator-shell"
-version = "0.1.45"
+version = "0.1.47"
 edition = "2021"
 publish = false
 
 [features]
 default = []
+# 模板库假数据注入（仅本地页面压测/演示用）：只有显式开启该 feature 才会编译并在读取清单后
+# 把条目循环补齐成假数据；计数由 AGC_TEMPLATE_LIBRARY_SYNTHETIC_COUNT 控制（默认 1000）。
+template-library-fixtures = []
 cocos-editor = ["cocos-editor-bridge/process-discovery"]
 cocos-editor-execute = ["cocos-editor", "cocos-editor-bridge/windows-bootstrap"]
 cocos-editor-injection = ["cocos-editor-execute", "cocos-editor-bridge/windows-injection"]
@@ -47,7 +50,6 @@ similar = "2.7"
 platform-llm = { path = "../../../server-rs/crates/platform-llm" }
 platform-agent = { path = "../../../server-rs/crates/platform-agent" }
 portable-pty = "0.9"
-percent-encoding = "2"
 reqwest = { version = "0.12", default-features = false, features = ["json", "multipart", "native-tls", "stream"] }
 regex = "1"
 shared-contracts = { path = "../../../server-rs/crates/shared-contracts", default-features = false }
@@ -55,6 +57,7 @@ tauri = { version = "2.11.2", features = [] }
 tauri-plugin-dialog = "2.7.1"
 tauri-plugin-http = { version = "2.5.9", default-features = false, features = ["charset", "cookies", "http2", "rustls-tls"] }
 tauri-plugin-opener = "2"
+tauri-plugin-updater = "2.11.0"
 tempfile = "3"
 toml = "0.8"
 ttf-parser = "0.25.1"

apps/ai-game-creator-shell/src-tauri/capabilities/main.json

@@ -14,13 +14,13 @@
       "allow": [
         { "url": "https://dev.genarrative.world/api/*" },
         { "url": "https://www.genarrative.world/api/*" },
-        { "url": "https://agc-dev.oss-rg-china-mainland.aliyuncs.com/*" },
         { "url": "https://*/api/*" },
         { "url": "http://localhost:*/*" },
         { "url": "http://127.0.0.1:*/*" }
       ]
     },
     "opener:default",
+    "updater:default",
     "dialog:allow-open",
     "dialog:allow-save"
   ]

apps/ai-game-creator-shell/src-tauri/design-agent/tools.json

@@ -2,7 +2,7 @@
   {"type":"function","function":{"name":"get_workflow_status","description":"读取当前策划工作流状态，只返回阶段列表、当前阶段、已批准阶段和待审批阶段；不推进阶段、不提交审批、不修改文件。","parameters":{"type":"object","properties":{},"additionalProperties":false}}},
   {"type":"function","function":{"name":"list_resources","description":"列出固定资源的逻辑目录、资源 ID、标题和简介。资源是只读的随包文档；不要猜测物理路径。","parameters":{"type":"object","properties":{},"additionalProperties":false}}},
   {"type":"function","function":{"name":"read_resource","description":"读取一份固定资源文档全文。每次读取一个 resource_id；资源只读。读到未实现占位文档时由你自行判断和处理。","parameters":{"type":"object","properties":{"resource_id":{"type":"string"}},"required":["resource_id"],"additionalProperties":false}}},
-  {"type":"function","function":{"name":"patch_file","description":"局部修改 UTF-8 文件。使用 old_text/new_text，或使用 edits 一次进行多个独立替换；每个 old_text 必须非空且在原文件中唯一，匹配失败、重复或范围重叠时不修改文件。path 使用相对路径。","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_text":{"type":"string"},"new_text":{"type":"string"},"edits":{"type":"array","items":{"type":"object","properties":{"old_text":{"type":"string"},"new_text":{"type":"string"}},"required":["old_text","new_text"],"additionalProperties":false}}},"required":["path"],"additionalProperties":false}}},
+  {"type":"function","function":{"name":"patch_file","description":"局部修改 UTF-8 文件。使用 old_text/new_text，或使用 edits 一次进行多个独立替换；每个 old_text 必须非空且在原文件中唯一。所有 edit 会一次性校验；任何失败都不修改文件，错误会列出各失败项及可唯一匹配的其余项。path 使用相对路径。","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_text":{"type":"string"},"new_text":{"type":"string"},"edits":{"type":"array","items":{"type":"object","properties":{"old_text":{"type":"string"},"new_text":{"type":"string"}},"required":["old_text","new_text"],"additionalProperties":false}}},"required":["path"],"additionalProperties":false}}},
   {"type":"function","function":{"name":"delete_path","description":"谨慎使用；永久删除工作区内的文件或目录；目录会连同全部内容递归删除，不备份。先确认目标及删除范围。path 使用相对路径，不能删除工作区根目录，也不能经过链接。","parameters":{"type":"object","properties":{"path":{"type":"string"}},"required":["path"],"additionalProperties":false}}},
   {"type":"function","function":{"name":"list_dir","description":"列出工作目录内的文件和目录。path 使用相对路径。","parameters":{"type":"object","properties":{"path":{"type":"string"}},"required":["path"],"additionalProperties":false}}},
   {"type":"function","function":{"name":"read_file","description":"读取工作目录内的 UTF-8 文本文件。path 使用相对路径。","parameters":{"type":"object","properties":{"path":{"type":"string"}},"required":["path"],"additionalProperties":false}}},

apps/ai-game-creator-shell/src-tauri/resources/agc-skills/agc-client-projection/SKILL.md

@@ -13,8 +13,8 @@ Let the client derive projections from real disk changes and trusted tool result
 2. Before using or deriving an existing registered asset, call `agc_list_registered_assets` and select its `localAssetId`. If the user points to an existing project file that is not listed, first call `agc_list_project_files`; only entries with `assetImportable=true` (recognized image, font, audio, video, document, or code files) may be passed to `agc_import_account_assets.localPaths`. Then re-read `agc_list_registered_assets`; never infer a source identity from a filename or fabricate a localAssetId.
 3. Keep read scopes separate: `asset.list` is the current project manifest, `asset.library.list` is the signed-in account library, and the web project's canvas resource read model is the authoritative canvas list. The account library is not the complete canvas list.
 4. Use `canvas.asset_import` for safe account/canvas asset IDs or project-relative local paths. The client rechecks ownership and validates bytes; host absolute paths require native UI file-picker authorization.
-5. When the user explicitly asks to create or derive video, character animation, sound effect, or background music, call `agc_create_or_derive_resource`. Use `create` only for video/audio without a source and `derive` with a registered `sourceLocalAssetId`; character animation is always derived from an image.
+5. When the user explicitly asks to create or derive video, character animation, sound effect, or background music, call `agc_create_or_derive_resource`. Use `create` only for video/audio without a source and `derive` with a registered `sourceLocalAssetId`; character animation is always derived from an image. Keep `prompt` inside the per-kind limit that the client really enforces: background music at most 140 characters, sound effect at most 1900, video and character animation at most 4000. A longer prompt is rejected before submission, so write the short version first instead of retrying the same text.
-6. When the user explicitly asks to remove an image background, call `agc_remove_background` with a registered image `sourceLocalAssetId` and an output name. The client requires the signed-in account, owns canvas/folder context and task identity, and returns only bounded queue state.
+6. When the user explicitly asks to remove an image background, call `agc_remove_background` with a registered image `sourceLocalAssetId` and `assetName`. Optional `backgroundMode` is `complex` (semantic foreground segmentation; default) or `flat` (solid-colour background removal). Prefer `flat` when the background is known to be solid. Only `flat` accepts optional `screenColor`: `auto`, `#RRGGBB`, or omitted for automatic detection by the service. Do not select a colour on behalf of `auto`. The client requires the signed-in account, owns canvas/folder context and task identity, and returns only bounded queue state.
 7. Preserve existing relative paths when a small edit is sufficient so client resource identities remain stable.
 8. Do not edit `.agent/manifest.json`, revision counters, version records, resource IDs, canvas identities, source provenance, generation ledgers, or browser receipts by hand.
 9. Do not create a version when no game file changed. The client compares content fingerprints and advances revision only after an actual source change.

apps/ai-game-creator-shell/src-tauri/resources/agc-skills/agc-client-projection/references/projection-contract.md

@@ -14,4 +14,6 @@ Read scopes remain separate: `asset.list` is the current project's local manifes
 
 `agc_create_or_derive_resource` accepts only semantic intent. The client resolves `sourceLocalAssetId`, creates stable request identities, recovers matching pending operations, serializes paid submissions, writes supported media into the current canvas and same-name asset folder, validates downloaded bytes, commits the local manifest transaction, and returns redacted warnings. A tool error or timeout is not permission to generate again with a new identity.
 
-`agc_remove_background` is the semantic image post-processing path. It accepts only a registered image `sourceLocalAssetId` and output name; the client resolves the formal source resource, canvas/folder context, stable operation identity, idempotency key, and authenticated External v1 `/api/external/v1/editor/images/background-removals` call. Its result is bounded queue state; Codex must not poll internal workers, construct source URLs, or retry with a new identity after an uncertain response.
+`prompt` limits are per kind and are enforced before any paid submission: background music accepts 1-140 characters, sound effect 1-1900, video and character animation 1-4000, and image editing (`agc_edit_image`) 1-32000. The client composes the submitted request from a fixed prefix plus your prompt, so an over-limit prompt fails locally with the exact limit; shorten the text rather than resubmitting the same value. `agc_edit_image` remains the image path; this tool never generates or edits still images.
+
+`agc_remove_background` accepts a registered image `sourceLocalAssetId`, `assetName`, and optional `backgroundMode` and `screenColor`. `complex` uses semantic segmentation to identify the foreground; `flat` removes a solid-colour background. Prefer `flat` when the background is known to be solid; omitting the mode selects `complex`. Only `flat` accepts a colour: `auto`, `#RRGGBB`, or omitted for automatic service detection. Never infer a concrete colour for `auto`. Empty or invalid values and colour without `flat` are rejected. The client resolves the formal source resource, canvas/folder context, stable operation identity, idempotency key, and authenticated External v1 `/api/external/v1/editor/images/background-removals` call. Mode and colour are part of request identity. Its result is bounded queue state; Codex must not poll internal workers, construct source URLs, or retry with a new identity after an uncertain response.