MAESTRO: Implement SSE observation feed consumer with channel routing and exponential backoff
Replaces stub start/stop methods with working SSE consumer that connects to claude-mem worker's /stream endpoint, parses new_observation events, and forwards formatted messages to configured OpenClaw channels (Telegram, Discord, Signal, Slack, WhatsApp, Line). Includes reconnection with exponential backoff (1s-30s), connection state tracking, and on/off command toggle. Added 17 tests covering unit and SSE integration scenarios. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Alex Newman
+195
-11
@@ -16,36 +16,220 @@ interface OpenClawPluginApi {
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};
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}
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interface ObservationSSEPayload {
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id: number;
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memory_session_id: string;
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session_id: string;
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type: string;
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title: string | null;
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subtitle: string | null;
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text: string | null;
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narrative: string | null;
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facts: string | null;
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concepts: string | null;
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files_read: string | null;
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files_modified: string | null;
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project: string;
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prompt_number: number;
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created_at_epoch: number;
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}
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interface SSENewObservationEvent {
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type: "new_observation";
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observation: ObservationSSEPayload;
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timestamp: number;
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}
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type ConnectionState = "disconnected" | "connected" | "reconnecting";
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let sseAbortController: AbortController | null = null;
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let connectionState: ConnectionState = "disconnected";
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function formatObservationMessage(observation: ObservationSSEPayload): string {
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const title = observation.title || "Untitled";
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let message = `🧠 Claude-Mem Observation\n**${title}**`;
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if (observation.subtitle) {
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message += `\n${observation.subtitle}`;
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}
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return message;
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}
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async function sendToChannel(
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api: OpenClawPluginApi,
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channel: string,
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to: string,
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text: string
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): Promise<void> {
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const channelSendFunctions: Record<string, (to: string, text: string) => Promise<any>> = {
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telegram: api.runtime.channel.telegram.sendMessageTelegram,
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discord: api.runtime.channel.discord.sendMessageDiscord,
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signal: api.runtime.channel.signal.sendMessageSignal,
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slack: api.runtime.channel.slack.sendMessageSlack,
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whatsapp: api.runtime.channel.whatsapp.sendMessageWhatsApp,
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line: api.runtime.channel.line.sendMessageLine,
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};
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const senderFunction = channelSendFunctions[channel];
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if (!senderFunction) {
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api.log(`[claude-mem] Unknown channel type: ${channel}`);
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return;
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}
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try {
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await senderFunction(to, text);
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} catch (error) {
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api.log(`[claude-mem] Failed to send to ${channel}: ${error}`);
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}
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}
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async function connectToSSEStream(
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api: OpenClawPluginApi,
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port: number,
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channel: string,
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to: string
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): Promise<void> {
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let backoffMs = 1000;
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const maxBackoffMs = 30000;
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while (sseAbortController && !sseAbortController.signal.aborted) {
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try {
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connectionState = "reconnecting";
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api.log(`[claude-mem] Connecting to SSE stream at http://localhost:${port}/stream`);
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const response = await fetch(`http://localhost:${port}/stream`, {
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signal: sseAbortController.signal,
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headers: { Accept: "text/event-stream" },
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});
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if (!response.ok) {
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throw new Error(`SSE stream returned HTTP ${response.status}`);
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}
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if (!response.body) {
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throw new Error("SSE stream response has no body");
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}
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connectionState = "connected";
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backoffMs = 1000;
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api.log("[claude-mem] Connected to SSE stream");
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const reader = response.body.getReader();
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const decoder = new TextDecoder();
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let buffer = "";
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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buffer += decoder.decode(value, { stream: true });
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const frames = buffer.split("\n\n");
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buffer = frames.pop() || "";
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for (const frame of frames) {
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const dataLine = frame
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.split("\n")
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.find((line) => line.startsWith("data:"));
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if (!dataLine) continue;
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const jsonStr = dataLine.slice(5).trim();
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if (!jsonStr) continue;
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try {
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const parsed = JSON.parse(jsonStr);
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if (parsed.type === "new_observation") {
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const event = parsed as SSENewObservationEvent;
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const message = formatObservationMessage(event.observation);
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await sendToChannel(api, channel, to, message);
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}
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} catch {
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// Ignore malformed JSON frames
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}
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}
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}
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} catch (error: any) {
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if (sseAbortController?.signal.aborted) {
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break;
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}
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connectionState = "reconnecting";
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api.log(`[claude-mem] SSE stream error: ${error.message ?? error}. Reconnecting in ${backoffMs / 1000}s`);
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}
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if (sseAbortController?.signal.aborted) break;
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await new Promise((resolve) => setTimeout(resolve, backoffMs));
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backoffMs = Math.min(backoffMs * 2, maxBackoffMs);
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}
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connectionState = "disconnected";
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}
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export default function claudeMemPlugin(api: OpenClawPluginApi): void {
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api.registerService({
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id: "claude-mem-observation-feed",
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start: async (ctx) => {
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start: async (_ctx) => {
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const config = api.getConfig();
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const feedConfig = config.observationFeed as any;
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const workerPort = (config.workerPort as number) || 37777;
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const feedConfig = config.observationFeed as
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| { enabled?: boolean; channel?: string; to?: string }
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| undefined;
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if (!feedConfig?.enabled) {
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api.log("[claude-mem] Observation feed disabled");
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return;
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}
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if (!feedConfig.channel || !feedConfig.to) {
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api.log("[claude-mem] Observation feed misconfigured — channel or target missing");
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return;
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}
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api.log(`[claude-mem] Observation feed starting — channel: ${feedConfig.channel}, target: ${feedConfig.to}`);
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// SSE connection logic added in Phase 2
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sseAbortController = new AbortController();
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connectToSSEStream(api, workerPort, feedConfig.channel, feedConfig.to);
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},
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stop: async (_ctx) => {
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if (sseAbortController) {
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sseAbortController.abort();
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sseAbortController = null;
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}
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connectionState = "disconnected";
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api.log("[claude-mem] Observation feed stopped — SSE connection closed");
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},
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stop: async (ctx) => {
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api.log("[claude-mem] Observation feed stopping");
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// SSE disconnect logic added in Phase 2
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}
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});
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api.registerCommand({
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name: "claude-mem-feed",
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description: "Show or toggle Claude-Mem observation feed status",
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handler: async (args, ctx) => {
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handler: async (args, _ctx) => {
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const config = api.getConfig();
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const feedConfig = config.observationFeed as any;
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const feedConfig = config.observationFeed as
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| { enabled?: boolean; channel?: string; to?: string }
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| undefined;
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if (!feedConfig) {
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return "Observation feed not configured. Add observationFeed to your plugin config.";
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}
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return `Claude-Mem Observation Feed\nEnabled: ${feedConfig.enabled ? "yes" : "no"}\nChannel: ${feedConfig.channel || "not set"}\nTarget: ${feedConfig.to || "not set"}`;
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}
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if (args[0] === "on") {
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api.log("[claude-mem] Feed enable requested via command");
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return "Feed enable requested. Update observationFeed.enabled in your plugin config to persist.";
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}
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if (args[0] === "off") {
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api.log("[claude-mem] Feed disable requested via command");
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return "Feed disable requested. Update observationFeed.enabled in your plugin config to persist.";
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}
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return [
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"Claude-Mem Observation Feed",
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`Enabled: ${feedConfig.enabled ? "yes" : "no"}`,
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`Channel: ${feedConfig.channel || "not set"}`,
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`Target: ${feedConfig.to || "not set"}`,
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`Connection: ${connectionState}`,
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].join("\n");
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},
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});
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api.log("[claude-mem] OpenClaw plugin loaded — v1.0.0");
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