Function discoverInstalledPlugins

src/main/lib/plugins/index.ts:58–142

()

 * Results are cached for 30 seconds to avoid repeated filesystem scans
 */
export async function discoverInstalledPlugins(): Promise<PluginInfo[]> {
  // Return cached result if still valid
  if (pluginCache && Date.now() - pluginCache.timestamp < CACHE_TTL_MS) {
    return pluginCache.plugins
  }

  const plugins: PluginInfo[] = []
  const marketplacesDir = path.join(os.homedir(), ".claude", "plugins", "marketplaces")

  try {
    await fs.access(marketplacesDir)
  } catch {
    pluginCache = { plugins, timestamp: Date.now() }
    return plugins
  }

  let marketplaces: Dirent[]
  try {
    marketplaces = await fs.readdir(marketplacesDir, { withFileTypes: true })
  } catch {
    pluginCache = { plugins, timestamp: Date.now() }
    return plugins
  }

  for (const marketplace of marketplaces) {
    if (marketplace.name.startsWith(".")) continue

    const isMarketplaceDir = await isDirentDirectory(
      marketplacesDir,
      marketplace,
    )
    if (!isMarketplaceDir) continue

    const marketplacePath = path.join(marketplacesDir, marketplace.name)
    const marketplaceJsonPath = path.join(marketplacePath, ".claude-plugin", "marketplace.json")

    try {
      const content = await fs.readFile(marketplaceJsonPath, "utf-8")

      let marketplaceJson: MarketplaceJson
      try {
        marketplaceJson = JSON.parse(content)
      } catch {
        continue
      }

      if (!Array.isArray(marketplaceJson.plugins)) {
        continue
      }

      for (const plugin of marketplaceJson.plugins) {
        // Validate plugin.source exists
        if (!plugin.source) continue

        // source can be a string path or an object { source: "url", url: "..." }
        const sourcePath = typeof plugin.source === "string" ? plugin.source : null
        if (!sourcePath) continue