feat(sources): add Discord source with live API indexing + knowledge graph

platform/core/src/index.ts

@@ -221,18 +221,23 @@ export type {
 	WorkspaceSourceRepoSyncResult,
 } from "./workspace-source-repo";
 export {
+	addDiscordSource,
 	addObsidianSource,
+	DEFAULT_DISCORD_MAX_MESSAGES,
 	DEFAULT_OBSIDIAN_EXCLUDE_GLOBS,
 	getAgentsDir,
 	getSourcesConfigPath,
 	loadSourcesConfig,
 	markSourceIndexed,
+	parseDiscordSettings,
 	removeSource,
 	saveSourcesConfig,
 } from "./sources-config";
 export type {
+	AddDiscordSourceInput,
 	AddObsidianSourceInput,
 	AddSourceResult,
+	DiscordSourceSettings,
 	RemoveSourceResult,
 	SignetSourceEntry,
 	SignetSourceKind,

platform/core/src/sources-config.test.ts

@@ -4,10 +4,12 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import {
 	DEFAULT_OBSIDIAN_EXCLUDE_GLOBS,
+	addDiscordSource,
 	addObsidianSource,
 	getSourcesConfigPath,
 	loadSourcesConfig,
 	markSourceIndexed,
+	parseDiscordSettings,
 	removeSource,
 } from "./sources-config";
 
@@ -152,4 +154,122 @@ describe("sources-config", () => {
 		if (removed.ok === true) throw new Error("expected removeSource to fail");
 		expect(removed.error).toContain("not found");
 	});
+
+	describe("discord source", () => {
+		it("adds a Discord source with guild IDs and token ref", () => {
+			const agentsDir = tmp();
+			const result = addDiscordSource(
+				{
+					guildIds: ["123456789012345678"],
+					tokenRef: "DISCORD_BOT_TOKEN",
+					name: "My Discord Server",
+					now: "2026-01-01T00:00:00.000Z",
+				},
+				agentsDir,
+			);
+
+			expect(result.ok).toBe(true);
+			if (result.ok === false) throw new Error(result.error);
+			expect(result.created).toBe(true);
+			expect(result.source.kind).toBe("discord");
+			expect(result.source.mode).toBe("read-only");
+			expect(result.source.name).toBe("My Discord Server");
+			expect(result.source.root).toBe("");
+			expect(result.source.settings).toBeDefined();
+			expect((result.source.settings as { guildIds: string[] }).guildIds).toEqual(["123456789012345678"]);
+			expect((result.source.settings as { tokenRef: string }).tokenRef).toBe("DISCORD_BOT_TOKEN");
+		});
+
+		it("rejects missing guild IDs", () => {
+			const agentsDir = tmp();
+			const result = addDiscordSource(
+				{ guildIds: [], tokenRef: "TOKEN" },
+				agentsDir,
+			);
+			expect(result.ok).toBe(false);
+			if (result.ok === true) throw new Error("expected failure");
+			expect(result.error).toContain("guild ID");
+		});
+
+		it("rejects missing token ref", () => {
+			const agentsDir = tmp();
+			const result = addDiscordSource(
+				{ guildIds: ["123456789012345678"], tokenRef: "" },
+				agentsDir,
+			);
+			expect(result.ok).toBe(false);
+			if (result.ok === true) throw new Error("expected failure");
+			expect(result.error).toContain("token");
+		});
+
+		it("rejects invalid guild ID format", () => {
+			const agentsDir = tmp();
+			const result = addDiscordSource(
+				{ guildIds: ["not-a-number"], tokenRef: "TOKEN" },
+				agentsDir,
+			);
+			expect(result.ok).toBe(false);
+			if (result.ok === true) throw new Error("expected failure");
+			expect(result.error).toContain("Invalid Discord guild ID");
+		});
+
+		it("deduplicates by sorted guild IDs", () => {
+			const agentsDir = tmp();
+			const first = addDiscordSource(
+				{ guildIds: ["111111111111111111"], tokenRef: "TOKEN", name: "Server A", now: "2026-01-01T00:00:00.000Z" },
+				agentsDir,
+			);
+			const second = addDiscordSource(
+				{ guildIds: ["111111111111111111"], tokenRef: "TOKEN2", name: "Server B", now: "2026-01-02T00:00:00.000Z" },
+				agentsDir,
+			);
+
+			expect(first.ok).toBe(true);
+			expect(second.ok).toBe(true);
+			if (second.ok === false) throw new Error(second.error);
+			expect(second.created).toBe(false);
+			expect(second.source.name).toBe("Server B");
+			expect(loadSourcesConfig(agentsDir).sources).toHaveLength(1);
+		});
+
+		it("parseDiscordSettings returns defaults for empty input", () => {
+			const settings = parseDiscordSettings(undefined);
+			expect(settings.guildIds).toEqual([]);
+			expect(settings.tokenRef).toBe("");
+			expect(settings.includeThreads).toBe(true);
+		});
+
+		it("parseDiscordSettings preserves valid fields", () => {
+			const settings = parseDiscordSettings({
+				guildIds: ["123"],
+				tokenRef: "MY_TOKEN",
+				channelFilter: ["general"],
+				maxMessagesPerChannel: 500,
+				includeThreads: false,
+				since: "2026-01-01",
+			});
+			expect(settings.guildIds).toEqual(["123"]);
+			expect(settings.tokenRef).toBe("MY_TOKEN");
+			expect(settings.channelFilter).toEqual(["general"]);
+			expect(settings.maxMessagesPerChannel).toBe(500);
+			expect(settings.includeThreads).toBe(false);
+			expect(settings.since).toBe("2026-01-01");
+		});
+
+		it("removes a Discord source by id", () => {
+			const agentsDir = tmp();
+			const added = addDiscordSource(
+				{ guildIds: ["123456789012345678"], tokenRef: "TOKEN", now: "2026-01-01T00:00:00.000Z" },
+				agentsDir,
+			);
+			expect(added.ok).toBe(true);
+			if (added.ok === false) throw new Error(added.error);
+
+			const removed = removeSource(added.source.id, agentsDir);
+			expect(removed.ok).toBe(true);
+			if (removed.ok === false) throw new Error(removed.error);
+			expect(removed.source.id).toBe(added.source.id);
+			expect(loadSourcesConfig(agentsDir).sources).toEqual([]);
+		});
+	});
 });

platform/core/src/sources-config.ts

@@ -3,7 +3,7 @@ import { existsSync, mkdirSync, readFileSync, renameSync, rmSync, statSync, writ
 import { homedir } from "node:os";
 import { dirname, resolve } from "node:path";
 
-export type SignetSourceKind = "obsidian";
+export type SignetSourceKind = "obsidian" | "discord";
 export type SignetSourceMode = "read-only";
 
 export interface SignetSourceEntry {
@@ -17,6 +17,7 @@ export interface SignetSourceEntry {
 	readonly updatedAt: string;
 	readonly lastIndexedAt?: string;
 	readonly excludeGlobs?: readonly string[];
+	readonly settings?: Readonly<Record<string, unknown>>;
 }
 
 export const DEFAULT_OBSIDIAN_EXCLUDE_GLOBS = [
@@ -39,6 +40,28 @@ export interface AddObsidianSourceInput {
 	readonly now?: string;
 }
 
+export interface DiscordSourceSettings {
+	readonly guildIds: readonly string[];
+	readonly tokenRef: string;
+	readonly channelFilter?: readonly string[];
+	readonly maxMessagesPerChannel?: number;
+	readonly includeThreads?: boolean;
+	readonly since?: string;
+}
+
+export const DEFAULT_DISCORD_MAX_MESSAGES = 1000;
+
+export interface AddDiscordSourceInput {
+	readonly guildIds: readonly string[];
+	readonly tokenRef: string;
+	readonly name?: string;
+	readonly channelFilter?: readonly string[];
+	readonly maxMessagesPerChannel?: number;
+	readonly includeThreads?: boolean;
+	readonly since?: string;
+	readonly now?: string;
+}
+
 export type AddSourceResult =
 	| { readonly ok: true; readonly source: SignetSourceEntry; readonly created: boolean }
 	| { readonly ok: false; readonly error: string };
@@ -105,6 +128,98 @@ export function addObsidianSource(input: AddObsidianSourceInput, agentsDir = get
 	return withSourcesConfigLock(agentsDir, () => addObsidianSourceUnlocked(input, agentsDir));
 }
 
+export function addDiscordSource(input: AddDiscordSourceInput, agentsDir = getAgentsDir()): AddSourceResult {
+	return withSourcesConfigLock(agentsDir, () => addDiscordSourceUnlocked(input, agentsDir));
+}
+
+function addDiscordSourceUnlocked(input: AddDiscordSourceInput, agentsDir = getAgentsDir()): AddSourceResult {
+	try {
+		return addDiscordSourceChecked(input, agentsDir);
+	} catch (err) {
+		const detail = err instanceof Error ? err.message : String(err);
+		return { ok: false, error: detail };
+	}
+}
+
+function addDiscordSourceChecked(input: AddDiscordSourceInput, agentsDir = getAgentsDir()): AddSourceResult {
+	if (!input.guildIds || input.guildIds.length === 0) {
+		return { ok: false, error: "At least one Discord guild ID is required" };
+	}
+	const trimmedTokenRef = input.tokenRef?.trim();
+	if (!trimmedTokenRef) return { ok: false, error: "Discord bot token reference (tokenRef) is required" };
+	for (const id of input.guildIds) {
+		if (!/^\d{17,20}$/.test(id.trim())) {
+			return { ok: false, error: `Invalid Discord guild ID: ${id}` };
+		}
+	}
+
+	const guildIds = input.guildIds.map((id) => id.trim());
+	const key = guildIds.slice().sort().join(",");
+	const now = input.now ?? new Date().toISOString();
+	const cfg = loadSourcesConfigForWrite(agentsDir);
+	const sourceId = `discord:${createHash("sha256").update(key).digest("hex").slice(0, 16)}`;
+	const existing = cfg.sources.find((source) => source.id === sourceId);
+
+	if (existing) {
+		const updated = {
+			...existing,
+			name: cleanName(input.name) ?? existing.name,
+			enabled: true,
+			settings: buildDiscordSettings(input),
+			updatedAt: now,
+		};
+		saveSourcesConfig(
+			{
+				version: SOURCES_CONFIG_VERSION,
+				sources: cfg.sources.map((source) => (source.id === existing.id ? updated : source)),
+			},
+			agentsDir,
+		);
+		return { ok: true, source: updated, created: false };
+	}
+
+	const source: SignetSourceEntry = {
+		id: sourceId,
+		kind: "discord",
+		name: cleanName(input.name) ?? "Discord Server",
+		root: "",
+		enabled: true,
+		mode: "read-only",
+		createdAt: now,
+		updatedAt: now,
+		settings: buildDiscordSettings(input),
+	};
+	saveSourcesConfig({ version: SOURCES_CONFIG_VERSION, sources: [...cfg.sources, source] }, agentsDir);
+	return { ok: true, source, created: true };
+}
+
+function buildDiscordSettings(input: AddDiscordSourceInput): Record<string, unknown> {
+	return {
+		guildIds: input.guildIds.map((id) => id.trim()),
+		tokenRef: input.tokenRef.trim(),
+		...(input.channelFilter && input.channelFilter.length > 0 ? { channelFilter: input.channelFilter } : {}),
+		maxMessagesPerChannel: input.maxMessagesPerChannel ?? DEFAULT_DISCORD_MAX_MESSAGES,
+		includeThreads: input.includeThreads ?? true,
+		...(input.since ? { since: input.since } : {}),
+	};
+}
+
+export function parseDiscordSettings(raw?: Readonly<Record<string, unknown>>): DiscordSourceSettings {
+	if (!raw) {
+		return { guildIds: [], tokenRef: "", includeThreads: true };
+	}
+	const guildIds = Array.isArray(raw.guildIds) ? raw.guildIds.filter((id): id is string => typeof id === "string") : [];
+	const tokenRef = typeof raw.tokenRef === "string" ? raw.tokenRef : "";
+	const channelFilter = Array.isArray(raw.channelFilter)
+		? raw.channelFilter.filter((id): id is string => typeof id === "string")
+		: undefined;
+	const maxMessagesPerChannel =
+		typeof raw.maxMessagesPerChannel === "number" ? raw.maxMessagesPerChannel : DEFAULT_DISCORD_MAX_MESSAGES;
+	const includeThreads = typeof raw.includeThreads === "boolean" ? raw.includeThreads : true;
+	const since = typeof raw.since === "string" ? raw.since : undefined;
+	return { guildIds, tokenRef, channelFilter, maxMessagesPerChannel, includeThreads, since };
+}
+
 function addObsidianSourceUnlocked(input: AddObsidianSourceInput, agentsDir = getAgentsDir()): AddSourceResult {
 	try {
 		return addObsidianSourceChecked(input, agentsDir);
@@ -272,7 +387,7 @@ function isRecord(value: unknown): value is Record<string, unknown> {
 function isSourceEntry(value: unknown): value is SignetSourceEntry {
 	return (
 		isRecord(value) &&
-		value.kind === "obsidian" &&
+		(value.kind === "obsidian" || value.kind === "discord") &&
 		typeof value.id === "string" &&
 		typeof value.name === "string" &&
 		typeof value.root === "string" &&
@@ -282,6 +397,7 @@ function isSourceEntry(value: unknown): value is SignetSourceEntry {
 		typeof value.updatedAt === "string" &&
 		(value.lastIndexedAt === undefined || typeof value.lastIndexedAt === "string") &&
 		(value.excludeGlobs === undefined ||
-			(Array.isArray(value.excludeGlobs) && value.excludeGlobs.every((entry) => typeof entry === "string")))
+			(Array.isArray(value.excludeGlobs) && value.excludeGlobs.every((entry) => typeof entry === "string"))) &&
+		(value.settings === undefined || isRecord(value.settings))
 	);
 }

platform/daemon/src/daemon.ts

@@ -36,6 +36,7 @@ import { migrateConfig } from "./config-migration";
 import { listConnectors } from "./connectors/registry";
 import { clearAllPresence } from "./cross-agent";
 import { closeDbAccessor, getDbAccessor, getVectorRuntimeStatus, initDbAccessor } from "./db-accessor";
+import { syncDiscordSource } from "./discord-source-bridge";
 import { fetchEmbedding } from "./embedding-fetch";
 import { type EmbeddingTrackerHandle, startEmbeddingTracker } from "./embedding-tracker";
 import { initFeatureFlags } from "./feature-flags";
@@ -1610,6 +1611,30 @@ async function main() {
 				});
 		}
 
+		for (const source of loadSourcesConfig(AGENTS_DIR).sources) {
+			if (!source.enabled || source.kind !== "discord") continue;
+			const startupEmbedCfg = loadMemoryConfig(AGENTS_DIR).embedding;
+			syncDiscordSource(source, {
+				agentId: resolveDaemonAgentId(),
+				embeddingConfig: startupEmbedCfg,
+				fetchEmbedding,
+				agentsDir: AGENTS_DIR,
+			})
+				.then((indexed) => {
+					logger.info("discord-source", "Discord source startup sync complete", {
+						sourceId: source.id,
+						indexed,
+					});
+					markSourceIndexed(source.id, undefined, AGENTS_DIR);
+				})
+				.catch((e) => {
+					logger.error("discord-source", "Discord source startup sync failed", undefined, {
+						sourceId: source.id,
+						error: e instanceof Error ? e.message : String(e),
+					});
+				});
+		}
+
 		const startupCfg = loadMemoryConfig(AGENTS_DIR);
 		if (startupCfg.embedding.provider !== "none") {
 			checkEmbeddingProvider(startupCfg.embedding)