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fix(wechat): avoid image_url session poison on report follow-ups

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Store image-only WeChat messages without running Agent, scrub assistant image_url history, and retry historical-image failures with text-only prompts.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
john
2026-08-15 08:21:28 +08:00
parent 4c2bc95462
commit 67b9478155
6 changed files with 147 additions and 127 deletions
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chat-image-turn-scope.mjs
+14 -10
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@@ -122,11 +122,10 @@ export function detachCurrentTurnImagesForTextProvider(message, canonicalImageUr
}
/**
* Remove image attachments from a persisted user message so later turns cannot reuse them.
* UI displayText / previewImageUrls are preserved for chat history rendering.
* Remove image attachments from a persisted message so later turns cannot reuse them.
*/
export function scrubUserMessageImageAttachments(message) {
if (!message || message.role !== 'user') return { message, changed: false };
function scrubPersistedImageAttachments(message) {
if (!message) return { message, changed: false };
const metadata =
message.metadata && typeof message.metadata === 'object' && !Array.isArray(message.metadata)
@@ -153,15 +152,13 @@ export function scrubUserMessageImageAttachments(message) {
return null;
}
if (item?.type !== 'text' || typeof item.text !== 'string') return item;
const nextText = stripAgentImageText(item.text);
const nextText = message.role === 'user' ? stripAgentImageText(item.text) : item.text;
if (nextText === item.text) return item;
contentChanged = true;
return nextText ? { ...item, text: nextText } : null;
}).filter(Boolean)
: message.content;
const displayText =
typeof metadata.displayText === 'string' ? metadata.displayText : null;
const changed = hadImageMetadata || contentChanged;
if (!changed) return { message, changed: false };
@@ -170,12 +167,20 @@ export function scrubUserMessageImageAttachments(message) {
...message,
content,
metadata,
...(displayText != null ? {} : {}),
},
changed: true,
};
}
/**
* Remove image attachments from a persisted user message so later turns cannot reuse them.
* UI displayText / previewImageUrls are preserved for chat history rendering.
*/
export function scrubUserMessageImageAttachments(message) {
if (!message || message.role !== 'user') return { message, changed: false };
return scrubPersistedImageAttachments(message);
}
export function messageContentHasImageUrl(content) {
if (!Array.isArray(content)) return false;
return content.some((item) => item?.type === 'image_url' && item?.image_url?.url);
@@ -203,9 +208,8 @@ export function scrubConversationHistoricalImageAttachments(conversation, active
let changed = false;
const nextConversation = conversation.map((message) => {
if (message?.role !== 'user') return message;
if (String(message?.id ?? '').trim() === activeId) return message;
const scrubbed = scrubUserMessageImageAttachments(message);
const scrubbed = scrubPersistedImageAttachments(message);
if (scrubbed.changed) changed = true;
return scrubbed.message;
});