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refactor: remove SendImage tag, rely on natural markdown link parsing

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LLMs naturally produce [name.png](/path) markdown links for images.
Parse only this pattern instead of teaching agents a custom tag.
Remove Image Handling sections from instructions.
This commit is contained in:
Eyejoker
2026-03-13 19:24:49 +09:00
parent fd5c81401d
commit 3cff07cc2e
1 changed files with 10 additions and 15 deletions
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25
src/channels/discord.ts
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@@ -303,34 +303,29 @@ export class DiscordChannel implements Channel {
const textChannel = channel as TextChannel;
// Extract image attachments from agent responses.
// Supports:
// [SendImage: /absolute/path] — explicit tag
// [name.png](/absolute/path/name.png) — markdown link with image extension
// Extract image attachments from markdown links with image extensions
// e.g. [name.png](/absolute/path/name.png)
const IMAGE_EXTS = /\.(png|jpe?g|gif|webp|svg|bmp)$/i;
const SEND_IMAGE_RE = /\[SendImage:\s*(\/[^\]]+)\]/g;
const MD_LINK_RE = /\[[^\]]*\]\((\/[^)]+)\)/g;
const imageFiles: string[] = [];
const seen = new Set<string>();
let match;
while ((match = SEND_IMAGE_RE.exec(text)) !== null) {
const imgPath = match[1].trim();
if (!seen.has(imgPath) && fs.existsSync(imgPath)) {
imageFiles.push(imgPath);
seen.add(imgPath);
}
}
while ((match = MD_LINK_RE.exec(text)) !== null) {
const imgPath = match[1].trim();
if (!seen.has(imgPath) && IMAGE_EXTS.test(imgPath) && fs.existsSync(imgPath)) {
if (
!seen.has(imgPath) &&
IMAGE_EXTS.test(imgPath) &&
fs.existsSync(imgPath)
) {
imageFiles.push(imgPath);
seen.add(imgPath);
}
}
let cleaned = text
.replace(SEND_IMAGE_RE, '')
.replace(MD_LINK_RE, (full, p) => IMAGE_EXTS.test(p) && seen.has(p.trim()) ? '' : full)
.replace(MD_LINK_RE, (full, p) =>
IMAGE_EXTS.test(p) && seen.has(p.trim()) ? '' : full,
)
.trim();
// Convert @username mentions to Discord mention format