mavis_config_show

Instructions

Implementation Reference

• src/index.js:381-386 (handler)

  Tool definition for 'mavis_config_show'. The handler is implicit: it has no custom execFn, so runTool uses execMavisJSON (line 84) which executes mavis CLI with buildArgs = ['config', 'show'] and parses the JSON output. No schema validation beyond an empty object.

  {
    name: 'mavis_config_show',
    description: 'Show current Mavis daemon configuration (models, provider, nexus settings).',
    inputSchema: z.object({}),
    buildArgs: () => ['config', 'show']
  },

• src/index.js:381-386 (schema)

  Input schema for mavis_config_show: z.object({}) — no arguments expected.

  {
    name: 'mavis_config_show',
    description: 'Show current Mavis daemon configuration (models, provider, nexus settings).',
    inputSchema: z.object({}),
    buildArgs: () => ['config', 'show']
  },

• src/index.js:484-492 (registration)

  Tools are registered in MavisServer constructor via this.toolMap = new Map(tools.map(t => [t.name, t])) (line 484) and served through ListToolsRequestSchema handler (line 486).

  this.toolMap = new Map(tools.map(t => [t.name, t]));
  
  this.server.setRequestHandler(ListToolsRequestSchema, async () => ({
    tools: tools.map(t => ({
      name: t.name,
      description: t.description,
      inputSchema: normalizeObjectSchema(t.inputSchema),
    })),
  }));

• src/index.js:77-84 (handler)

  runTool is the generic handler runner. For mavis_config_show (no custom execFn), it calls execMavisJSON(args) which runs 'mavis config show' and parses JSON output.

  function runTool(spec, parsedArgs) {
    const { execFn, outputMode, stdin, buildArgs } = spec;
    const args = buildArgs(parsedArgs);
    const input = typeof stdin === 'function' ? stdin(parsedArgs) : stdin;
  
    const execPromise = execFn
      ? execMavis(args, input || '')
      : execMavisJSON(args);

• src/index.js:32-53 (helper)

  execMavis helper spawns the mavis CLI binary with arguments and captures stdout.

  function execMavis(args, input = '') {
    return new Promise((resolve, reject) => {
      const SESSION_COMMANDS = new Set(['communication', 'session', 'spawn']);
      const sessionId = process.env.__MAVIS_PARENT_SESSION_ID;
      const subcmd = args[0];
      const needsSession = SESSION_COMMANDS.has(subcmd) && sessionId;
      const finalArgs = needsSession ? [...args, '--session', sessionId] : args;
      const proc = spawn(MAVIS_BIN, finalArgs, { stdio: ['pipe', 'pipe', 'pipe'] });
      let stdout = '';
      let stderr = '';
  
      proc.stdout.on('data', d => stdout += d.toString());
      proc.stderr.on('data', d => stderr += d.toString());
      proc.on('close', code => {
        if (code === 0) resolve(stdout.trim());
        else reject(new Error(stderr.split('\n')[0] || `exit code ${code}`));
      });
      proc.on('error', reject);
  
      if (input) proc.stdin.write(input), proc.stdin.end();
    });
  }