Function dedupPluginMcpServers

src/services/mcp/config.ts:223–266

(
  pluginServers: Record<string, ScopedMcpServerConfig>,
  manualServers: Record<string, ScopedMcpServerConfig>,
)

 * where both actually launch the same underlying process/connection.
 */
export function dedupPluginMcpServers(
  pluginServers: Record<string, ScopedMcpServerConfig>,
  manualServers: Record<string, ScopedMcpServerConfig>,
): {
  servers: Record<string, ScopedMcpServerConfig>
  suppressed: Array<{ name: string; duplicateOf: string }>
} {
  // Map signature -> server name so we can report which server a dup matches
  const manualSigs = new Map<string, string>()
  for (const [name, config] of Object.entries(manualServers)) {
    const sig = getMcpServerSignature(config)
    if (sig && !manualSigs.has(sig)) manualSigs.set(sig, name)
  }

  const servers: Record<string, ScopedMcpServerConfig> = {}
  const suppressed: Array<{ name: string; duplicateOf: string }> = []
  const seenPluginSigs = new Map<string, string>()
  for (const [name, config] of Object.entries(pluginServers)) {
    const sig = getMcpServerSignature(config)
    if (sig === null) {
      servers[name] = config
      continue
    }
    const manualDup = manualSigs.get(sig)
    if (manualDup !== undefined) {
      logForDebugging(
        `Suppressing plugin MCP server "${name}": duplicates manually-configured "${manualDup}"`,
      )
      suppressed.push({ name, duplicateOf: manualDup })
      continue
    }
    const pluginDup = seenPluginSigs.get(sig)
    if (pluginDup !== undefined) {
      logForDebugging(
        `Suppressing plugin MCP server "${name}": duplicates earlier plugin server "${pluginDup}"`,
      )
      suppressed.push({ name, duplicateOf: pluginDup })
      continue
    }
    seenPluginSigs.set(sig, name)
    servers[name] = config
  }
  return { servers, suppressed }
}

/**
 * Filter claude.ai connectors, dropping any whose signature matches an enabled