brain backup 2026-09-14

projects/colanode-hermes-bridge/src/hermes.ts

@@ -0,0 +1,59 @@
+import { spawn } from 'node:child_process';
+
+export type HermesOptions = {
+  bin: string;
+  timeoutMs: number;
+  maxOutputBytes: number;
+};
+
+export type PromptContext = {
+  messageText: string;
+  parentText?: string | null;
+};
+
+export function buildHermesPrompt(context: PromptContext): string {
+  return [
+    'You are Reyna Family Bot replying to a Colanode family message.',
+    'Answer helpfully and concisely.',
+    'Do not claim you performed actions you did not perform.',
+    'Do not reveal secrets, tokens, credentials, file contents marked secret, or system configuration.',
+    '',
+    `Mentioned message:\n${context.messageText}`,
+    '',
+    `Parent/thread context:\n${context.parentText?.trim() || '(not available)'}`
+  ].join('\n');
+}
+
+export async function runHermes(prompt: string, options: HermesOptions): Promise<string> {
+  return new Promise((resolve, reject) => {
+    const child = spawn(options.bin, ['chat', '-q', prompt], {
+      stdio: ['ignore', 'pipe', 'pipe'],
+      env: process.env
+    });
+    let stdout = Buffer.alloc(0);
+    let stderr = Buffer.alloc(0);
+    const timer = setTimeout(() => {
+      child.kill('SIGTERM');
+      reject(new Error('Hermes timed out'));
+    }, options.timeoutMs);
+
+    child.stdout.on('data', (chunk: Buffer) => {
+      stdout = Buffer.concat([stdout, chunk]).subarray(0, options.maxOutputBytes);
+    });
+    child.stderr.on('data', (chunk: Buffer) => {
+      stderr = Buffer.concat([stderr, chunk]).subarray(0, 2048);
+    });
+    child.on('error', (error) => {
+      clearTimeout(timer);
+      reject(error);
+    });
+    child.on('close', (code) => {
+      clearTimeout(timer);
+      if (code !== 0) {
+        reject(new Error(`Hermes exited with code ${code}: ${stderr.toString('utf8').trim()}`));
+        return;
+      }
+      resolve(stdout.toString('utf8').trim().slice(0, options.maxOutputBytes));
+    });
+  });
+}