feat: add tlon channel plugin

This commit is contained in:
Peter Steinberger
2026-01-24 00:17:58 +00:00
parent d46642319b
commit 791b568f78
38 changed files with 2431 additions and 3027 deletions

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import type { RuntimeEnv } from "clawdbot/plugin-sdk";
import { formatChangesDate } from "./utils.js";
export async function fetchGroupChanges(
api: { scry: (path: string) => Promise<unknown> },
runtime: RuntimeEnv,
daysAgo = 5,
) {
try {
const changeDate = formatChangesDate(daysAgo);
runtime.log?.(`[tlon] Fetching group changes since ${daysAgo} days ago (${changeDate})...`);
const changes = await api.scry(`/groups-ui/v5/changes/${changeDate}.json`);
if (changes) {
runtime.log?.("[tlon] Successfully fetched changes data");
return changes;
}
return null;
} catch (error: any) {
runtime.log?.(`[tlon] Failed to fetch changes (falling back to full init): ${error?.message ?? String(error)}`);
return null;
}
}
export async function fetchAllChannels(
api: { scry: (path: string) => Promise<unknown> },
runtime: RuntimeEnv,
): Promise<string[]> {
try {
runtime.log?.("[tlon] Attempting auto-discovery of group channels...");
const changes = await fetchGroupChanges(api, runtime, 5);
let initData: any;
if (changes) {
runtime.log?.("[tlon] Changes data received, using full init for channel extraction");
initData = await api.scry("/groups-ui/v6/init.json");
} else {
initData = await api.scry("/groups-ui/v6/init.json");
}
const channels: string[] = [];
if (initData && initData.groups) {
for (const groupData of Object.values(initData.groups as Record<string, any>)) {
if (groupData && typeof groupData === "object" && groupData.channels) {
for (const channelNest of Object.keys(groupData.channels)) {
if (channelNest.startsWith("chat/")) {
channels.push(channelNest);
}
}
}
}
}
if (channels.length > 0) {
runtime.log?.(`[tlon] Auto-discovered ${channels.length} chat channel(s)`);
runtime.log?.(
`[tlon] Channels: ${channels.slice(0, 5).join(", ")}${channels.length > 5 ? "..." : ""}`,
);
} else {
runtime.log?.("[tlon] No chat channels found via auto-discovery");
runtime.log?.("[tlon] Add channels manually to config: channels.tlon.groupChannels");
}
return channels;
} catch (error: any) {
runtime.log?.(`[tlon] Auto-discovery failed: ${error?.message ?? String(error)}`);
runtime.log?.("[tlon] To monitor group channels, add them to config: channels.tlon.groupChannels");
runtime.log?.("[tlon] Example: [\"chat/~host-ship/channel-name\"]");
return [];
}
}

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import type { RuntimeEnv } from "clawdbot/plugin-sdk";
import { extractMessageText } from "./utils.js";
export type TlonHistoryEntry = {
author: string;
content: string;
timestamp: number;
id?: string;
};
const messageCache = new Map<string, TlonHistoryEntry[]>();
const MAX_CACHED_MESSAGES = 100;
export function cacheMessage(channelNest: string, message: TlonHistoryEntry) {
if (!messageCache.has(channelNest)) {
messageCache.set(channelNest, []);
}
const cache = messageCache.get(channelNest);
if (!cache) return;
cache.unshift(message);
if (cache.length > MAX_CACHED_MESSAGES) {
cache.pop();
}
}
export async function fetchChannelHistory(
api: { scry: (path: string) => Promise<unknown> },
channelNest: string,
count = 50,
runtime?: RuntimeEnv,
): Promise<TlonHistoryEntry[]> {
try {
const scryPath = `/channels/v4/${channelNest}/posts/newest/${count}/outline.json`;
runtime?.log?.(`[tlon] Fetching history: ${scryPath}`);
const data: any = await api.scry(scryPath);
if (!data) return [];
let posts: any[] = [];
if (Array.isArray(data)) {
posts = data;
} else if (data.posts && typeof data.posts === "object") {
posts = Object.values(data.posts);
} else if (typeof data === "object") {
posts = Object.values(data);
}
const messages = posts
.map((item) => {
const essay = item.essay || item["r-post"]?.set?.essay;
const seal = item.seal || item["r-post"]?.set?.seal;
return {
author: essay?.author || "unknown",
content: extractMessageText(essay?.content || []),
timestamp: essay?.sent || Date.now(),
id: seal?.id,
} as TlonHistoryEntry;
})
.filter((msg) => msg.content);
runtime?.log?.(`[tlon] Extracted ${messages.length} messages from history`);
return messages;
} catch (error: any) {
runtime?.log?.(`[tlon] Error fetching channel history: ${error?.message ?? String(error)}`);
return [];
}
}
export async function getChannelHistory(
api: { scry: (path: string) => Promise<unknown> },
channelNest: string,
count = 50,
runtime?: RuntimeEnv,
): Promise<TlonHistoryEntry[]> {
const cache = messageCache.get(channelNest) ?? [];
if (cache.length >= count) {
runtime?.log?.(`[tlon] Using cached messages (${cache.length} available)`);
return cache.slice(0, count);
}
runtime?.log?.(
`[tlon] Cache has ${cache.length} messages, need ${count}, fetching from scry...`,
);
return await fetchChannelHistory(api, channelNest, count, runtime);
}

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import { format } from "node:util";
import type { RuntimeEnv, ReplyPayload, ClawdbotConfig } from "clawdbot/plugin-sdk";
import { getTlonRuntime } from "../runtime.js";
import { resolveTlonAccount } from "../types.js";
import { normalizeShip, parseChannelNest } from "../targets.js";
import { authenticate } from "../urbit/auth.js";
import { UrbitSSEClient } from "../urbit/sse-client.js";
import { sendDm, sendGroupMessage } from "../urbit/send.js";
import { cacheMessage, getChannelHistory } from "./history.js";
import { createProcessedMessageTracker } from "./processed-messages.js";
import {
extractMessageText,
formatModelName,
isBotMentioned,
isDmAllowed,
isSummarizationRequest,
} from "./utils.js";
import { fetchAllChannels } from "./discovery.js";
export type MonitorTlonOpts = {
runtime?: RuntimeEnv;
abortSignal?: AbortSignal;
accountId?: string | null;
};
type ChannelAuthorization = {
mode?: "restricted" | "open";
allowedShips?: string[];
};
function resolveChannelAuthorization(
cfg: ClawdbotConfig,
channelNest: string,
): { mode: "restricted" | "open"; allowedShips: string[] } {
const tlonConfig = cfg.channels?.tlon as
| {
authorization?: { channelRules?: Record<string, ChannelAuthorization> };
defaultAuthorizedShips?: string[];
}
| undefined;
const rules = tlonConfig?.authorization?.channelRules ?? {};
const rule = rules[channelNest];
const allowedShips = rule?.allowedShips ?? tlonConfig?.defaultAuthorizedShips ?? [];
const mode = rule?.mode ?? "restricted";
return { mode, allowedShips };
}
export async function monitorTlonProvider(opts: MonitorTlonOpts = {}): Promise<void> {
const core = getTlonRuntime();
const cfg = core.config.loadConfig() as ClawdbotConfig;
if (cfg.channels?.tlon?.enabled === false) return;
const logger = core.logging.getChildLogger({ module: "tlon-auto-reply" });
const formatRuntimeMessage = (...args: Parameters<RuntimeEnv["log"]>) => format(...args);
const runtime: RuntimeEnv = opts.runtime ?? {
log: (...args) => {
logger.info(formatRuntimeMessage(...args));
},
error: (...args) => {
logger.error(formatRuntimeMessage(...args));
},
exit: (code: number): never => {
throw new Error(`exit ${code}`);
},
};
const account = resolveTlonAccount(cfg, opts.accountId ?? undefined);
if (!account.enabled) return;
if (!account.configured || !account.ship || !account.url || !account.code) {
throw new Error("Tlon account not configured (ship/url/code required)");
}
const botShipName = normalizeShip(account.ship);
runtime.log?.(`[tlon] Starting monitor for ${botShipName}`);
let api: UrbitSSEClient | null = null;
try {
runtime.log?.(`[tlon] Attempting authentication to ${account.url}...`);
const cookie = await authenticate(account.url, account.code);
api = new UrbitSSEClient(account.url, cookie, {
ship: botShipName,
logger: {
log: (message) => runtime.log?.(message),
error: (message) => runtime.error?.(message),
},
});
} catch (error: any) {
runtime.error?.(`[tlon] Failed to authenticate: ${error?.message ?? String(error)}`);
throw error;
}
const processedTracker = createProcessedMessageTracker(2000);
let groupChannels: string[] = [];
if (account.autoDiscoverChannels !== false) {
try {
const discoveredChannels = await fetchAllChannels(api, runtime);
if (discoveredChannels.length > 0) {
groupChannels = discoveredChannels;
}
} catch (error: any) {
runtime.error?.(`[tlon] Auto-discovery failed: ${error?.message ?? String(error)}`);
}
}
if (groupChannels.length === 0 && account.groupChannels.length > 0) {
groupChannels = account.groupChannels;
runtime.log?.(`[tlon] Using manual groupChannels config: ${groupChannels.join(", ")}`);
}
if (groupChannels.length > 0) {
runtime.log?.(
`[tlon] Monitoring ${groupChannels.length} group channel(s): ${groupChannels.join(", ")}`,
);
} else {
runtime.log?.("[tlon] No group channels to monitor (DMs only)");
}
const handleIncomingDM = async (update: any) => {
try {
const memo = update?.response?.add?.memo;
if (!memo) return;
const messageId = update.id as string | undefined;
if (!processedTracker.mark(messageId)) return;
const senderShip = normalizeShip(memo.author ?? "");
if (!senderShip || senderShip === botShipName) return;
const messageText = extractMessageText(memo.content);
if (!messageText) return;
if (!isDmAllowed(senderShip, account.dmAllowlist)) {
runtime.log?.(`[tlon] Blocked DM from ${senderShip}: not in allowlist`);
return;
}
await processMessage({
messageId: messageId ?? "",
senderShip,
messageText,
isGroup: false,
timestamp: memo.sent || Date.now(),
});
} catch (error: any) {
runtime.error?.(`[tlon] Error handling DM: ${error?.message ?? String(error)}`);
}
};
const handleIncomingGroupMessage = (channelNest: string) => async (update: any) => {
try {
const parsed = parseChannelNest(channelNest);
if (!parsed) return;
const essay = update?.response?.post?.["r-post"]?.set?.essay;
const memo = update?.response?.post?.["r-post"]?.reply?.["r-reply"]?.set?.memo;
if (!essay && !memo) return;
const content = memo || essay;
const isThreadReply = Boolean(memo);
const messageId = isThreadReply
? update?.response?.post?.["r-post"]?.reply?.id
: update?.response?.post?.id;
if (!processedTracker.mark(messageId)) return;
const senderShip = normalizeShip(content.author ?? "");
if (!senderShip || senderShip === botShipName) return;
const messageText = extractMessageText(content.content);
if (!messageText) return;
cacheMessage(channelNest, {
author: senderShip,
content: messageText,
timestamp: content.sent || Date.now(),
id: messageId,
});
const mentioned = isBotMentioned(messageText, botShipName);
if (!mentioned) return;
const { mode, allowedShips } = resolveChannelAuthorization(cfg, channelNest);
if (mode === "restricted") {
if (allowedShips.length === 0) {
runtime.log?.(`[tlon] Access denied: ${senderShip} in ${channelNest} (no allowlist)`);
return;
}
const normalizedAllowed = allowedShips.map(normalizeShip);
if (!normalizedAllowed.includes(senderShip)) {
runtime.log?.(
`[tlon] Access denied: ${senderShip} in ${channelNest} (allowed: ${allowedShips.join(", ")})`,
);
return;
}
}
const seal = isThreadReply
? update?.response?.post?.["r-post"]?.reply?.["r-reply"]?.set?.seal
: update?.response?.post?.["r-post"]?.set?.seal;
const parentId = seal?.["parent-id"] || seal?.parent || null;
await processMessage({
messageId: messageId ?? "",
senderShip,
messageText,
isGroup: true,
groupChannel: channelNest,
groupName: `${parsed.hostShip}/${parsed.channelName}`,
timestamp: content.sent || Date.now(),
parentId,
});
} catch (error: any) {
runtime.error?.(`[tlon] Error handling group message: ${error?.message ?? String(error)}`);
}
};
const processMessage = async (params: {
messageId: string;
senderShip: string;
messageText: string;
isGroup: boolean;
groupChannel?: string;
groupName?: string;
timestamp: number;
parentId?: string | null;
}) => {
const { messageId, senderShip, isGroup, groupChannel, groupName, timestamp, parentId } = params;
let messageText = params.messageText;
if (isGroup && groupChannel && isSummarizationRequest(messageText)) {
try {
const history = await getChannelHistory(api!, groupChannel, 50, runtime);
if (history.length === 0) {
const noHistoryMsg =
"I couldn't fetch any messages for this channel. It might be empty or there might be a permissions issue.";
if (isGroup) {
const parsed = parseChannelNest(groupChannel);
if (parsed) {
await sendGroupMessage({
api: api!,
fromShip: botShipName,
hostShip: parsed.hostShip,
channelName: parsed.channelName,
text: noHistoryMsg,
});
}
} else {
await sendDm({ api: api!, fromShip: botShipName, toShip: senderShip, text: noHistoryMsg });
}
return;
}
const historyText = history
.map((msg) => `[${new Date(msg.timestamp).toLocaleString()}] ${msg.author}: ${msg.content}`)
.join("\n");
messageText =
`Please summarize this channel conversation (${history.length} recent messages):\n\n${historyText}\n\n` +
"Provide a concise summary highlighting:\n" +
"1. Main topics discussed\n" +
"2. Key decisions or conclusions\n" +
"3. Action items if any\n" +
"4. Notable participants";
} catch (error: any) {
const errorMsg = `Sorry, I encountered an error while fetching the channel history: ${error?.message ?? String(error)}`;
if (isGroup && groupChannel) {
const parsed = parseChannelNest(groupChannel);
if (parsed) {
await sendGroupMessage({
api: api!,
fromShip: botShipName,
hostShip: parsed.hostShip,
channelName: parsed.channelName,
text: errorMsg,
});
}
} else {
await sendDm({ api: api!, fromShip: botShipName, toShip: senderShip, text: errorMsg });
}
return;
}
}
const route = core.channel.routing.resolveAgentRoute({
cfg,
channel: "tlon",
accountId: opts.accountId ?? undefined,
peer: {
kind: isGroup ? "group" : "dm",
id: isGroup ? groupChannel ?? senderShip : senderShip,
},
});
const fromLabel = isGroup ? `${senderShip} in ${groupName}` : senderShip;
const body = core.channel.reply.formatAgentEnvelope({
channel: "Tlon",
from: fromLabel,
timestamp,
body: messageText,
});
const ctxPayload = core.channel.reply.finalizeInboundContext({
Body: body,
RawBody: messageText,
CommandBody: messageText,
From: isGroup ? `tlon:group:${groupChannel}` : `tlon:${senderShip}`,
To: `tlon:${botShipName}`,
SessionKey: route.sessionKey,
AccountId: route.accountId,
ChatType: isGroup ? "group" : "direct",
ConversationLabel: fromLabel,
SenderName: senderShip,
SenderId: senderShip,
Provider: "tlon",
Surface: "tlon",
MessageSid: messageId,
OriginatingChannel: "tlon",
OriginatingTo: `tlon:${isGroup ? groupChannel : botShipName}`,
});
const dispatchStartTime = Date.now();
const responsePrefix = core.channel.reply.resolveEffectiveMessagesConfig(cfg, route.agentId)
.responsePrefix;
const humanDelay = core.channel.reply.resolveHumanDelayConfig(cfg, route.agentId);
await core.channel.reply.dispatchReplyWithBufferedBlockDispatcher({
ctx: ctxPayload,
cfg,
dispatcherOptions: {
responsePrefix,
humanDelay,
deliver: async (payload: ReplyPayload) => {
let replyText = payload.text;
if (!replyText) return;
const showSignature = account.showModelSignature ?? cfg.channels?.tlon?.showModelSignature ?? false;
if (showSignature) {
const modelInfo =
payload.metadata?.model || payload.model || route.model || cfg.agents?.defaults?.model?.primary;
replyText = `${replyText}\n\n_[Generated by ${formatModelName(modelInfo)}]_`;
}
if (isGroup && groupChannel) {
const parsed = parseChannelNest(groupChannel);
if (!parsed) return;
await sendGroupMessage({
api: api!,
fromShip: botShipName,
hostShip: parsed.hostShip,
channelName: parsed.channelName,
text: replyText,
replyToId: parentId ?? undefined,
});
} else {
await sendDm({ api: api!, fromShip: botShipName, toShip: senderShip, text: replyText });
}
},
onError: (err, info) => {
const dispatchDuration = Date.now() - dispatchStartTime;
runtime.error?.(
`[tlon] ${info.kind} reply failed after ${dispatchDuration}ms: ${String(err)}`,
);
},
},
});
};
const subscribedChannels = new Set<string>();
const subscribedDMs = new Set<string>();
async function subscribeToChannel(channelNest: string) {
if (subscribedChannels.has(channelNest)) return;
const parsed = parseChannelNest(channelNest);
if (!parsed) {
runtime.error?.(`[tlon] Invalid channel format: ${channelNest}`);
return;
}
try {
await api!.subscribe({
app: "channels",
path: `/${channelNest}`,
event: handleIncomingGroupMessage(channelNest),
err: (error) => {
runtime.error?.(`[tlon] Group subscription error for ${channelNest}: ${String(error)}`);
},
quit: () => {
runtime.log?.(`[tlon] Group subscription ended for ${channelNest}`);
subscribedChannels.delete(channelNest);
},
});
subscribedChannels.add(channelNest);
runtime.log?.(`[tlon] Subscribed to group channel: ${channelNest}`);
} catch (error: any) {
runtime.error?.(`[tlon] Failed to subscribe to ${channelNest}: ${error?.message ?? String(error)}`);
}
}
async function subscribeToDM(dmShip: string) {
if (subscribedDMs.has(dmShip)) return;
try {
await api!.subscribe({
app: "chat",
path: `/dm/${dmShip}`,
event: handleIncomingDM,
err: (error) => {
runtime.error?.(`[tlon] DM subscription error for ${dmShip}: ${String(error)}`);
},
quit: () => {
runtime.log?.(`[tlon] DM subscription ended for ${dmShip}`);
subscribedDMs.delete(dmShip);
},
});
subscribedDMs.add(dmShip);
runtime.log?.(`[tlon] Subscribed to DM with ${dmShip}`);
} catch (error: any) {
runtime.error?.(`[tlon] Failed to subscribe to DM with ${dmShip}: ${error?.message ?? String(error)}`);
}
}
async function refreshChannelSubscriptions() {
try {
const dmShips = await api!.scry("/chat/dm.json");
if (Array.isArray(dmShips)) {
for (const dmShip of dmShips) {
await subscribeToDM(dmShip);
}
}
if (account.autoDiscoverChannels !== false) {
const discoveredChannels = await fetchAllChannels(api!, runtime);
for (const channelNest of discoveredChannels) {
await subscribeToChannel(channelNest);
}
}
} catch (error: any) {
runtime.error?.(`[tlon] Channel refresh failed: ${error?.message ?? String(error)}`);
}
}
try {
runtime.log?.("[tlon] Subscribing to updates...");
let dmShips: string[] = [];
try {
const dmList = await api!.scry("/chat/dm.json");
if (Array.isArray(dmList)) {
dmShips = dmList;
runtime.log?.(`[tlon] Found ${dmShips.length} DM conversation(s)`);
}
} catch (error: any) {
runtime.error?.(`[tlon] Failed to fetch DM list: ${error?.message ?? String(error)}`);
}
for (const dmShip of dmShips) {
await subscribeToDM(dmShip);
}
for (const channelNest of groupChannels) {
await subscribeToChannel(channelNest);
}
runtime.log?.("[tlon] All subscriptions registered, connecting to SSE stream...");
await api!.connect();
runtime.log?.("[tlon] Connected! All subscriptions active");
const pollInterval = setInterval(() => {
if (!opts.abortSignal?.aborted) {
refreshChannelSubscriptions().catch((error) => {
runtime.error?.(`[tlon] Channel refresh error: ${error?.message ?? String(error)}`);
});
}
}, 2 * 60 * 1000);
if (opts.abortSignal) {
await new Promise((resolve) => {
opts.abortSignal.addEventListener(
"abort",
() => {
clearInterval(pollInterval);
resolve(null);
},
{ once: true },
);
});
} else {
await new Promise(() => {});
}
} finally {
try {
await api?.close();
} catch (error: any) {
runtime.error?.(`[tlon] Cleanup error: ${error?.message ?? String(error)}`);
}
}
}

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import { describe, expect, it } from "vitest";
import { createProcessedMessageTracker } from "./processed-messages.js";
describe("createProcessedMessageTracker", () => {
it("dedupes and evicts oldest entries", () => {
const tracker = createProcessedMessageTracker(3);
expect(tracker.mark("a")).toBe(true);
expect(tracker.mark("a")).toBe(false);
expect(tracker.has("a")).toBe(true);
tracker.mark("b");
tracker.mark("c");
expect(tracker.size()).toBe(3);
tracker.mark("d");
expect(tracker.size()).toBe(3);
expect(tracker.has("a")).toBe(false);
expect(tracker.has("b")).toBe(true);
expect(tracker.has("c")).toBe(true);
expect(tracker.has("d")).toBe(true);
});
});

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export type ProcessedMessageTracker = {
mark: (id?: string | null) => boolean;
has: (id?: string | null) => boolean;
size: () => number;
};
export function createProcessedMessageTracker(limit = 2000): ProcessedMessageTracker {
const seen = new Set<string>();
const order: string[] = [];
const mark = (id?: string | null) => {
const trimmed = id?.trim();
if (!trimmed) return true;
if (seen.has(trimmed)) return false;
seen.add(trimmed);
order.push(trimmed);
if (order.length > limit) {
const overflow = order.length - limit;
for (let i = 0; i < overflow; i += 1) {
const oldest = order.shift();
if (oldest) seen.delete(oldest);
}
}
return true;
};
const has = (id?: string | null) => {
const trimmed = id?.trim();
if (!trimmed) return false;
return seen.has(trimmed);
};
return {
mark,
has,
size: () => seen.size,
};
}

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import { normalizeShip } from "../targets.js";
export function formatModelName(modelString?: string | null): string {
if (!modelString) return "AI";
const modelName = modelString.includes("/") ? modelString.split("/")[1] : modelString;
const modelMappings: Record<string, string> = {
"claude-opus-4-5": "Claude Opus 4.5",
"claude-sonnet-4-5": "Claude Sonnet 4.5",
"claude-sonnet-3-5": "Claude Sonnet 3.5",
"gpt-4o": "GPT-4o",
"gpt-4-turbo": "GPT-4 Turbo",
"gpt-4": "GPT-4",
"gemini-2.0-flash": "Gemini 2.0 Flash",
"gemini-pro": "Gemini Pro",
};
if (modelMappings[modelName]) return modelMappings[modelName];
return modelName
.replace(/-/g, " ")
.split(" ")
.map((word) => word.charAt(0).toUpperCase() + word.slice(1))
.join(" ");
}
export function isBotMentioned(messageText: string, botShipName: string): boolean {
if (!messageText || !botShipName) return false;
const normalizedBotShip = normalizeShip(botShipName);
const escapedShip = normalizedBotShip.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
const mentionPattern = new RegExp(`(^|\\s)${escapedShip}(?=\\s|$)`, "i");
return mentionPattern.test(messageText);
}
export function isDmAllowed(senderShip: string, allowlist: string[] | undefined): boolean {
if (!allowlist || allowlist.length === 0) return true;
const normalizedSender = normalizeShip(senderShip);
return allowlist
.map((ship) => normalizeShip(ship))
.some((ship) => ship === normalizedSender);
}
export function extractMessageText(content: unknown): string {
if (!content || !Array.isArray(content)) return "";
return content
.map((block: any) => {
if (block.inline && Array.isArray(block.inline)) {
return block.inline
.map((item: any) => {
if (typeof item === "string") return item;
if (item && typeof item === "object") {
if (item.ship) return item.ship;
if (item.break !== undefined) return "\n";
if (item.link && item.link.href) return item.link.href;
}
return "";
})
.join("");
}
return "";
})
.join("\n")
.trim();
}
export function isSummarizationRequest(messageText: string): boolean {
const patterns = [
/summarize\s+(this\s+)?(channel|chat|conversation)/i,
/what\s+did\s+i\s+miss/i,
/catch\s+me\s+up/i,
/channel\s+summary/i,
/tldr/i,
];
return patterns.some((pattern) => pattern.test(messageText));
}
export function formatChangesDate(daysAgo = 5): string {
const now = new Date();
const targetDate = new Date(now.getTime() - daysAgo * 24 * 60 * 60 * 1000);
const year = targetDate.getFullYear();
const month = targetDate.getMonth() + 1;
const day = targetDate.getDate();
return `~${year}.${month}.${day}..20.19.51..9b9d`;
}