Bun Spawn -> node child process in tools and seed versioning

seed/tasks/convert-to-mp3/TASK.md

@@ -1,7 +1,7 @@
 ---
 name: Convert To MP3
 description: Convert audio files to MP3 320kbps, preserving metadata.
-version: 2
+version: 3
 author: pastilhas
 tags:
   - audio
@@ -38,10 +38,13 @@ inputs:
 
 Convert audio files to MP3 320kbps, preserving metadata.
 
+## Important
+
+- Do NOT explore, list, or inspect the target path before converting. The tool handles everything internally — file discovery, format detection, and error reporting.
+- Do NOT use bash, ls, or any other tool. Only use `convert_audio_to_mp3`.
+- Call the tool exactly once, then report the result. Nothing else.
+
 ## Steps
 
-1. Determine whether `file_path` points to a single audio file or a directory.
+1. If `file_path` has an audio extension (flac, wav, ogg, etc.), call `convert_audio_to_mp3(mode="single", path=file_path)`. Otherwise call `convert_audio_to_mp3(mode="batch", path=file_path)`.
-2. Call `convert_audio_to_mp3` with the appropriate mode:
+2. Print the tool's output as the final report. Do not add extra commentary.
-   - Single file: `mode="single"`, `path=file_path`
-   - Directory: `mode="batch"`, `path=file_path`
-3. Report the result to the user.

seed/tools/convert-audio-to-mp3/TOOL.md

@@ -2,6 +2,7 @@
 name: convert_audio_to_mp3
 label: Convert Audio to MP3
 description: Convert audio files to MP3 320kbps using ffmpeg, preserving metadata. Supports single file conversion with real-time percentage progress, and batch conversion of an entire artist directory with per-file progress. Use when the user wants to convert FLAC, WAV, OGG, or other audio formats to MP3.
+version: 2
 language: typescript
 inputs:
   mode:

seed/tools/convert-audio-to-mp3/index.ts

@@ -1,5 +1,6 @@
 import { readdirSync, existsSync, unlinkSync, statSync } from 'node:fs';
 import { join, extname, basename } from 'node:path';
+import { spawn, execFile } from 'node:child_process';
 
 const AUDIO_EXTS = new Set([
   'flac', 'wav', 'ogg', 'wma', 'aac', 'm4a', 'opus',
@@ -13,14 +14,17 @@ function update(onUpdate: OnUpdate | undefined, text: string): void {
 }
 
 async function getDuration(filePath: string): Promise<number | null> {
-  const proc = Bun.spawn(
+  return new Promise((resolve) => {
-    ['ffprobe', '-v', 'quiet', '-show_entries', 'format=duration', '-of', 'csv=p=0', filePath],
+    execFile(
-    { stdout: 'pipe', stderr: 'pipe' },
+      'ffprobe',
+      ['-v', 'quiet', '-show_entries', 'format=duration', '-of', 'csv=p=0', filePath],
+      (err, stdout) => {
+        if (err) return resolve(null);
+        const n = parseFloat(stdout.trim());
+        resolve(isNaN(n) ? null : n);
+      },
     );
-  const text = await new Response(proc.stdout).text();
+  });
-  await proc.exited;
-  const n = parseFloat(text.trim());
-  return isNaN(n) ? null : n;
 }
 
 function scanAudioFiles(dir: string): string[] {
@@ -57,33 +61,24 @@ async function convertFile(
     return { outputFile, success: true, skipped: true };
   }
 
-  const proc = Bun.spawn(
+  return new Promise((resolve) => {
-    [
+    const proc = spawn('ffmpeg', [
-      'ffmpeg',
       '-i', inputFile,
-      '-progress', 'pipe:1',  // progress data → stdout
+      '-progress', 'pipe:1',
       '-nostats',
-      '-loglevel', 'error',   // only errors → stderr
+      '-loglevel', 'error',
       '-codec:a', 'libmp3lame',
       '-b:a', '320k',
       outputFile,
       '-y',
-    ],
+    ], { stdio: ['ignore', 'pipe', 'pipe'] });
-    { stdin: 'ignore', stdout: 'pipe', stderr: 'pipe' },
-  );
 
-  // Parse -progress output from stdout for real-time percentage
-  const reader = (proc.stdout as ReadableStream<Uint8Array>).getReader();
-  const decoder = new TextDecoder();
     let buf = '';
     let lastPercent = -1;
+    let stderrText = '';
 
-  (async () => {
+    proc.stdout.on('data', (chunk: Buffer) => {
-    try {
+      buf += chunk.toString();
-      while (true) {
-        const { done, value } = await reader.read();
-        if (done) break;
-        buf += decoder.decode(value, { stream: true });
       const lines = buf.split('\n');
       buf = lines.pop() ?? '';
       for (const line of lines) {
@@ -96,21 +91,25 @@ async function convertFile(
           }
         }
       }
-      }
+    });
-    } catch {
-      // stream closed
-    }
-  })();
 
-  const stderrText = await new Response(proc.stderr).text();
+    proc.stderr.on('data', (chunk: Buffer) => {
-  await proc.exited;
+      stderrText += chunk.toString();
+    });
 
-  if (proc.exitCode !== 0) {
+    proc.on('close', (code) => {
+      if (code !== 0) {
         if (existsSync(outputFile)) unlinkSync(outputFile);
-    return { outputFile, success: false, error: stderrText.trim() || 'ffmpeg failed' };
+        resolve({ outputFile, success: false, error: stderrText.trim() || 'ffmpeg failed' });
+      } else {
+        resolve({ outputFile, success: true });
       }
+    });
 
-  return { outputFile, success: true };
+    proc.on('error', (err) => {
+      resolve({ outputFile, success: false, error: err.message });
+    });
+  });
 }
 
 export async function execute(

src/servers/sync-processes.ts

@@ -1,6 +1,7 @@
-import { readdirSync, existsSync, mkdirSync, cpSync } from 'node:fs';
+import { readdirSync, readFileSync, existsSync, mkdirSync, cpSync, rmSync } from 'node:fs';
 import { join } from 'node:path';
 import { SEED_PATH, DATA_PATH } from './data-path';
+import { parseSeedVersion } from './sync-version';
 
 const SEED_PROCESSES_DIR = join(SEED_PATH, 'processes');
 const GLOBAL_PROCESSES_DIR = join(DATA_PATH, 'processes');
@@ -16,14 +17,18 @@ export function syncSeedProcesses(): void {
     if (!entry.isDirectory()) continue;
 
     const seedProcessDir = join(SEED_PROCESSES_DIR, entry.name);
-    const processFile = join(seedProcessDir, 'PROCESS.md');
+    const seedFile = join(seedProcessDir, 'PROCESS.md');
-    if (!existsSync(processFile)) continue;
+    if (!existsSync(seedFile)) continue;
 
     const targetDir = join(GLOBAL_PROCESSES_DIR, entry.name);
+    const targetFile = join(targetDir, 'PROCESS.md');
 
     if (existsSync(targetDir)) {
-      // Process already exists in DATA_PATH — skip to preserve user edits
+      const seedVersion = parseSeedVersion(readFileSync(seedFile, 'utf-8'));
-      continue;
+      const targetVersion = existsSync(targetFile) ? parseSeedVersion(readFileSync(targetFile, 'utf-8')) : 0;
+      if (seedVersion <= targetVersion) continue;
+      rmSync(targetDir, { recursive: true });
+      console.log(`[processes] Updating seed process: ${entry.name} (v${targetVersion} → v${seedVersion})`);
     }
 
     cpSync(seedProcessDir, targetDir, { recursive: true });

src/servers/sync-skills.ts

@@ -1,6 +1,7 @@
-import { readdirSync, existsSync, mkdirSync, cpSync } from 'node:fs';
+import { readdirSync, readFileSync, existsSync, mkdirSync, cpSync, rmSync } from 'node:fs';
 import { join } from 'node:path';
 import { SEED_PATH, DATA_PATH } from './data-path';
+import { parseSeedVersion } from './sync-version';
 
 const SEED_SKILLS_DIR = join(SEED_PATH, 'skills');
 const GLOBAL_SKILLS_DIR = join(DATA_PATH, 'skills');
@@ -16,14 +17,18 @@ export function syncSeedSkills(): void {
     if (!entry.isDirectory()) continue;
 
     const seedSkillDir = join(SEED_SKILLS_DIR, entry.name);
-    const skillFile = join(seedSkillDir, 'SKILL.md');
+    const seedFile = join(seedSkillDir, 'SKILL.md');
-    if (!existsSync(skillFile)) continue;
+    if (!existsSync(seedFile)) continue;
 
     const targetDir = join(GLOBAL_SKILLS_DIR, entry.name);
+    const targetFile = join(targetDir, 'SKILL.md');
 
     if (existsSync(targetDir)) {
-      // Skill already exists in DATA_PATH — skip to preserve user edits
+      const seedVersion = parseSeedVersion(readFileSync(seedFile, 'utf-8'));
-      continue;
+      const targetVersion = existsSync(targetFile) ? parseSeedVersion(readFileSync(targetFile, 'utf-8')) : 0;
+      if (seedVersion <= targetVersion) continue;
+      rmSync(targetDir, { recursive: true });
+      console.log(`[skills] Updating seed skill: ${entry.name} (v${targetVersion} → v${seedVersion})`);
     }
 
     cpSync(seedSkillDir, targetDir, { recursive: true });

src/servers/sync-tasks.ts

@@ -1,6 +1,7 @@
-import { readdirSync, existsSync, mkdirSync, cpSync } from 'node:fs';
+import { readdirSync, readFileSync, existsSync, mkdirSync, cpSync, rmSync } from 'node:fs';
 import { join } from 'node:path';
 import { SEED_PATH, DATA_PATH } from './data-path';
+import { parseSeedVersion } from './sync-version';
 
 const SEED_TASKS_DIR = join(SEED_PATH, 'tasks');
 const GLOBAL_TASKS_DIR = join(DATA_PATH, 'tasks');
@@ -16,14 +17,18 @@ export function syncSeedTasks(): void {
     if (!entry.isDirectory()) continue;
 
     const seedTaskDir = join(SEED_TASKS_DIR, entry.name);
-    const taskFile = join(seedTaskDir, 'TASK.md');
+    const seedFile = join(seedTaskDir, 'TASK.md');
-    if (!existsSync(taskFile)) continue;
+    if (!existsSync(seedFile)) continue;
 
     const targetDir = join(GLOBAL_TASKS_DIR, entry.name);
+    const targetFile = join(targetDir, 'TASK.md');
 
     if (existsSync(targetDir)) {
-      // Task already exists in DATA_PATH — skip to preserve user edits
+      const seedVersion = parseSeedVersion(readFileSync(seedFile, 'utf-8'));
-      continue;
+      const targetVersion = existsSync(targetFile) ? parseSeedVersion(readFileSync(targetFile, 'utf-8')) : 0;
+      if (seedVersion <= targetVersion) continue;
+      rmSync(targetDir, { recursive: true });
+      console.log(`[tasks] Updating seed task: ${entry.name} (v${targetVersion} → v${seedVersion})`);
     }
 
     cpSync(seedTaskDir, targetDir, { recursive: true });

src/servers/sync-tools.ts

@@ -1,6 +1,7 @@
-import { readdirSync, existsSync, mkdirSync, cpSync } from 'node:fs';
+import { readdirSync, readFileSync, existsSync, mkdirSync, cpSync, rmSync } from 'node:fs';
 import { join } from 'node:path';
 import { SEED_PATH, DATA_PATH } from './data-path';
+import { parseSeedVersion } from './sync-version';
 
 const SEED_TOOLS_DIR = join(SEED_PATH, 'tools');
 const GLOBAL_TOOLS_DIR = join(DATA_PATH, 'tools');
@@ -16,14 +17,18 @@ export function syncSeedTools(): void {
     if (!entry.isDirectory()) continue;
 
     const seedToolDir = join(SEED_TOOLS_DIR, entry.name);
-    const toolFile = join(seedToolDir, 'TOOL.md');
+    const seedFile = join(seedToolDir, 'TOOL.md');
-    if (!existsSync(toolFile)) continue;
+    if (!existsSync(seedFile)) continue;
 
     const targetDir = join(GLOBAL_TOOLS_DIR, entry.name);
+    const targetFile = join(targetDir, 'TOOL.md');
 
     if (existsSync(targetDir)) {
-      // Tool already exists in DATA_PATH — skip to preserve user edits
+      const seedVersion = parseSeedVersion(readFileSync(seedFile, 'utf-8'));
-      continue;
+      const targetVersion = existsSync(targetFile) ? parseSeedVersion(readFileSync(targetFile, 'utf-8')) : 0;
+      if (seedVersion <= targetVersion) continue;
+      rmSync(targetDir, { recursive: true });
+      console.log(`[tools] Updating seed tool: ${entry.name} (v${targetVersion} → v${seedVersion})`);
     }
 
     cpSync(seedToolDir, targetDir, { recursive: true });

src/servers/sync-version.ts

@@ -0,0 +1,10 @@
+/**
+ * Extract the `version` field from YAML frontmatter.
+ * Returns 0 if no version is found.
+ */
+export function parseSeedVersion(content: string): number {
+  const match = content.match(/^---\n([\s\S]*?)\n---/);
+  if (!match) return 0;
+  const versionMatch = match[1]!.match(/^version:\s*(\d+)/m);
+  return versionMatch ? parseInt(versionMatch[1]!, 10) : 0;
+}