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feat(discord-gateway): add local badword pre-filter, accurate token estimation, Piscina maxThreads config, and PromptMode support

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MythEclipse
2026-06-02 22:50:23 +07:00
parent 6d2da7ce1d
commit f163ead3cf
4 changed files with 69 additions and 1 deletions
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services/discord-gateway/src/modules/ai-moderation/conversationContext.ts
+12 -1
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@@ -1,6 +1,7 @@
import { formatModerationTextEvidenceForPrompt } from "./indonesianTextNormalizer.js";
import { formatMediaEvidenceForPrompt } from "../message-capture/messageMetadata.js";
import type { MessageRecord } from "../message-capture/types.js";
import { encodingForModel } from "tiktoken";
export interface ConversationContextInput {
contextBefore: MessageRecord[];
@@ -8,6 +9,15 @@ export interface ConversationContextInput {
maxTokens: number;
}
let _encoder: ReturnType<typeof encodingForModel> | null = null;
function getEncoder(): ReturnType<typeof encodingForModel> {
if (!_encoder) {
_encoder = encodingForModel("gpt-4o");
}
return _encoder;
}
/**
* Formats a timestamp to ISO 8601 string
*/
@@ -19,7 +29,8 @@ function formatTimestamp(ms: number): string {
* Estimates token count for a string (pessimistic approximation for Indonesian slang & JSON overhead)
*/
export function estimateTokens(text: string): number {
return Math.ceil(text.length / 3) + 15;
// Use tiktoken for accurate token counting (+15 overhead for JSON structure)
return getEncoder().encode(text).length + 15;
}
/**
services/discord-gateway/src/modules/ai-moderation/llmModerationClient.ts
+10
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@@ -508,6 +508,16 @@ function hasMediaContent(
// Single-image vision analysis (reused by both text-only and media paths)
// ---------------------------------------------------------------------------
/**
* In-memory LRU cache for vision analysis results.
* Fastest path — avoids DB round-trip for frequently seen images.
* Max 500 entries, 24-hour TTL.
*/
const visionLruCache = new LRUCache<string, string>({
max: 500,
ttl: 24 * 60 * 60 * 1000,
});
/**
* In-flight deduplication map — prevents concurrent vision API calls for
* the same cache key. Multiple concurrent requests for an identical image
services/discord-gateway/src/modules/ai-moderation/moderationPrompt.ts
+45
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@@ -128,6 +128,51 @@ Contoh 7 — Pesan HANYA GAMBAR situs judi (teks kosong, tapi gambar jelas):
Input: [target] id=55555 user=promotor: [Media analysis for message 55555] [gambar di atas adalah attachment promo.jpg dari pesan id=55555]: Screenshot website dengan background merah dan emas. Terlihat teks "DEPOSIT NOW", "BONUS 100%", "SLOT GACOR", chip poker, dan roda roulette. Ada tombol "DAFTAR" dan "LOGIN".
Output: {"results":[{"message_id":"55555","status":"flagged","flags":["gambling"],"score":0.94,"categories":["gambling"],"severity":"high","confidence":0.94,"recommended_action":"delete","policy_version":"default-2026-05-30","evidence":["Gambar menampilkan antarmuka situs judi online dengan chip, roulette, tombol deposit, dan teks promosi judi"],"analysis":"Promosi situs judi melalui gambar dengan elemen judi jelas: chip, roulette, teks deposit dan bonus."}]}`;
// ---------------------------------------------------------------------------
// Section: Extracted Few-Shot Examples by Mode
// ---------------------------------------------------------------------------
/**
* Text-only examples extracted from FEW_SHOT_EXAMPLES for text-mode prompts.
* Includes Contoh 1 (slang), Contoh 2 (harassment), Contoh 3 (sticker text-only).
*/
const TEXT_ONLY_EXAMPLES = `## Contoh Output yang Benak
Contoh 1 — Pesan bersih dengan slang:
Input: [target] id=12345 user=budi: anjay wkwk gaskeun santuy bro
Output: {"results":[{"message_id":"12345","status":"clean","flags":[],"score":0.0,"categories":[],"severity":"none","confidence":0.95,"recommended_action":"none","policy_version":"default-2026-05-30","evidence":[],"analysis":"Slang Indonesia umum tanpa pelanggaran terdeteksi."}]}
Contoh 2 — Harassment terarah:
Input: [target] id=67890 user=anon: lu goblok banget sih kontol, mampus aja lo
Output: {"results":[{"message_id":"67890","status":"flagged","flags":["harassment","vulgar_language"],"score":0.85,"categories":["harassment","vulgar_language"],"severity":"high","confidence":0.9,"recommended_action":"delete","policy_version":"default-2026-05-30","evidence":["lu goblok banget sih kontol","mampus aja lo"],"analysis":"Insult langsung dengan kata kasar terarah ke individu."}]}
Contoh 3 — Sticker kartun dengan nama provokatif:
Input: [target] id=11111 user=citra: <:singa_injek:123456> [sticker: "Singa injek pejabat"]
Output: {"results":[{"message_id":"11111","status":"clean","flags":[],"score":0.1,"categories":[],"severity":"none","confidence":0.8,"recommended_action":"none","policy_version":"default-2026-05-30","evidence":[],"analysis":"Sticker kartun satir dengan nama provokatif namun bukan ancaman nyata."}]}`;
/**
* Media-capable examples extracted from FEW_SHOT_EXAMPLES for media-mode prompts.
* Includes Contoh 4 (normal chat + image), Contoh 5 (gambling promo),
* Contoh 6 (image-only terminal), Contoh 7 (image-only gambling site).
*/
const MEDIA_EXAMPLES = `## Contoh Output yang Benak — Mode Media
Contoh 4 — Pesan biasa dengan gambar (JANGAN flag sebagai judi):
Input: [target] id=22222 user=rina: Aku suka nasgor loh [Media analysis for message 22222] [gambar di atas adalah attachment foto.jpg dari pesan id=22222]: Gambar menampilkan tangkapan layar aplikasi chat dengan teks percakapan biasa. Tidak ada konten melanggar terlihat. Aman.
Output: {"results":[{"message_id":"22222","status":"clean","flags":[],"score":0.0,"categories":[],"severity":"none","confidence":0.95,"recommended_action":"none","policy_version":"default-2026-05-30","evidence":[],"analysis":"Pesan berisi percakapan sehari-hari tentang makanan. Gambar menunjukkan screenshot chat biasa tanpa pelanggaran."}]}
Contoh 5 — Pesan promosi judi dengan gambar situs judi:
Input: [target] id=33333 user=spammer: MAIN DI SINI GACOR PARAH https://judionline.xyz [Media analysis for message 33333] [gambar di atas adalah attachment slot.jpg dari pesan id=33333]: Gambar menampilkan antarmuka situs judi online dengan mesin slot, chip, dan tombol deposit. Terlihat logo "JudiOnline" dan odds taruhan.
Output: {"results":[{"message_id":"33333","status":"flagged","flags":["gambling"],"score":0.92,"categories":["gambling"],"severity":"high","confidence":0.92,"recommended_action":"delete","policy_version":"default-2026-05-30","evidence":["MAIN DI SINI GACOR PARAH","https://judionline.xyz","Gambar menampilkan antarmuka situs judi online dengan mesin slot, chip, dan tombol deposit"],"analysis":"Promosi situs judi online dengan link, teks promosi, dan gambar antarmuka judi yang jelas."}]}
Contoh 6 — Pesan HANYA GAMBAR tanpa teks (WAJIB analisis deskripsi):
Input: [target] id=44444 user=dev: [Media analysis for message 44444] [gambar di atas adalah attachment screenshot.png dari pesan id=44444]: Screenshot terminal Linux dengan background hitam dan teks hijau. Terlihat output command 'ls -la' dan 'git status'. Tidak ada teks atau elemen mencurigakan.
Output: {"results":[{"message_id":"44444","status":"clean","flags":[],"score":0.0,"categories":[],"severity":"none","confidence":0.95,"recommended_action":"none","policy_version":"default-2026-05-30","evidence":[],"analysis":"dev mengirim screenshot terminal Linux. Terlihat output command ls -la dan git status dengan teks hijau di background hitam. Aktivitas coding biasa, tidak ada konten melanggar."}]}
Contoh 7 — Pesan HANYA GAMBAR situs judi (teks kosong, tapi gambar jelas):
Input: [target] id=55555 user=promotor: [Media analysis for message 55555] [gambar di atas adalah attachment promo.jpg dari pesan id=55555]: Screenshot website dengan background merah dan emas. Terlihat teks "DEPOSIT NOW", "BONUS 100%", "SLOT GACOR", chip poker, dan roda roulette. Ada tombol "DAFTAR" dan "LOGIN".
Output: {"results":[{"message_id":"55555","status":"flagged","flags":["gambling"],"score":0.94,"categories":["gambling"],"severity":"high","confidence":0.94,"recommended_action":"delete","policy_version":"default-2026-05-30","evidence":["Gambar menampilkan antarmuka situs judi online dengan chip, roulette, tombol deposit, dan teks promosi judi"],"analysis":"Promosi situs judi melalui gambar dengan elemen judi jelas: chip, roulette, teks deposit dan bonus."}]}`;
// ---------------------------------------------------------------------------
// Section: Output Schema + XML Delimiter Instructions
// ---------------------------------------------------------------------------