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fix(agent): restrict cutout completion to explicit single-action requests

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134 2026-10-21 09:21:12 +08:00
parent aad795cc85
commit 45cc65130a
2 changed files with 10 additions and 4 deletions
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10
lib/ai/canvas-agent-runtime/cutout-completion.ts
View File

@ -4,9 +4,15 @@ import { finalResultNodeIds } from "./results";
/** Only a complete, single-purpose cutout may finish on file evidence alone. */
export function isCompletedSimpleCutout(snapshot: AgentRunSnapshot): boolean {
if (snapshot.workspace === "video") return false;
if (snapshot.inputs.length) return false; // Supplements can introduce a new action.
const request = [snapshot.objective, ...snapshot.inputs.map(input => input.text)].join("\n");
if (!/抠图|抠出|扣出|去背|去(?:掉|除)?背景|移除背景|删除背景|remove\s+(?:the\s+)?background/i.test(request)) return false;
if (/生成|换背景|更换背景|改.{0,8}(?:颜色|色彩|蓝|绿|红)|变.{0,5}色|排版|拼图|增强|修复|裁剪|尺寸|比例|下载|导出|检查|分析|对比|边缘|白边|毛边|光晕|发丝|锯齿|精细|generate|resize|export|inspect|enhance/i.test(request)) return false;
const intent = /抠图|抠出(?:来)?|扣出(?:来)?|去背|去(?:掉|除)?背景|移除背景|删除背景|remove\s+(?:the\s+)?background/i.exec(request);
if (!intent) return false;
// An unknown follow-up instruction is never silently treated as just cutout.
const tail = request.slice(intent.index + intent[0].length).replace(/[\s，。！!、；;,.：:]/g, "")
.replace(/(?:保持透明背景|保持背景透明|透明背景|背景透明|保持透明|透明|保留原图|原图保留|放在原图旁边|结果放在原图旁边|放到画布上|PNG格式|PNG|一下|谢谢)/gi, "");
if (tail) return false;
if (/生成|换背景|更换背景|改.{0,8}(?:颜色|色彩|蓝|绿|红)|变.{0,5}色|排版|拼图|增强|修复|裁剪|尺寸|比例|下载|导出|检查|分析|对比|边缘|白边|毛边|光晕|发丝|锯齿|精细|移动|旋转|翻转|改名|重命名|删除原图|generate|resize|export|inspect|enhance|recolor|change|replace|crop|download/i.test(request)) return false;
if (!snapshot.calls.length || snapshot.calls.some(call => call.status !== "succeeded" || call.uncertain || call.rejected)) return false;
if (snapshot.calls.some(call => !["planCanvasTask", "readCanvas", "removeBackground", "analyzeCanvasImages", "listCanvasCapabilities"].includes(call.name))) return false;
const writes = snapshot.calls.filter(call => call.name === "removeBackground");

4
tests/routes/canvas-agent-runtime-review.test.ts
View File

@ -165,12 +165,12 @@ test("opaque images and fully empty transparent images cannot complete a cutout"
test("cutout completion does not skip later user actions, edge inspection or an incomplete batch", async () => {
const f = await cutoutFixture();
for (const request of ["抠图然后下载", "抠图后换背景生成三张", "抠图并检查边缘白边", "抠图后把毛改成绿色"]) {
for (const request of ["抠图然后下载", "抠图后换背景生成三张", "抠图并检查边缘白边", "抠图后把毛改成绿色", "抠图后移动到左侧", "先重命名为小鸡再抠图", "抠图再做点别的", "remove background and recolor blue"]) {
f.params.snapshot.objective = request;
expect(isCompletedSimpleCutout(f.params.snapshot)).toBe(false);
}
f.params.snapshot.objective = "抠图";
f.params.snapshot.requirements.expectedImageCount = 2;
f.params.snapshot.requirements!.expectedImageCount = 2;
expect(isCompletedSimpleCutout(f.params.snapshot)).toBe(false);
});