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elgentos

Magento 2 Development MCP Server

by elgentos

System Info

sys-info

Retrieve Magento 2 system information including configuration, environment details, and technical specifications to diagnose issues and verify system status.

Instructions

Get Magento 2 system information

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
formatNoOutput formattable

Implementation Reference

  • Handler function for 'sys-info' tool: executes `magerun2 sys:info` command with optional format (table/json/csv), handles result or error, formats response as text content.
    async ({ format = "table" }) => {
      const command = `magerun2 sys:info --format=${format}`;
      const result = await executeMagerun2Command(command, format === "json");
    
      if (!result.success) {
        return {
          content: [{
            type: "text",
            text: result.error
          }],
          isError: true
        };
      }
    
      const responseText = format === "json"
        ? `System information (${format} format):\n\n${JSON.stringify(result.data, null, 2)}`
        : `System information (${format} format):\n\n${result.data}`;
    
      return {
        content: [{
          type: "text",
          text: responseText
        }]
      };
    }
  • Input schema for 'sys-info' tool: defines optional 'format' parameter as enum ["table", "json", "csv"] defaulting to "table".
      format: z.enum(["table", "json", "csv"])
        .default("table")
        .describe("Output format")
    }
  • src/index.ts:645-681 (registration)
    Registration of 'sys-info' tool via server.registerTool, including title, description, input schema, and handler function.
    server.registerTool(
      "sys-info",
      {
        title: "System Info",
        description: "Get Magento 2 system information",
        inputSchema: {
          format: z.enum(["table", "json", "csv"])
            .default("table")
            .describe("Output format")
        }
      },
      async ({ format = "table" }) => {
        const command = `magerun2 sys:info --format=${format}`;
        const result = await executeMagerun2Command(command, format === "json");
    
        if (!result.success) {
          return {
            content: [{
              type: "text",
              text: result.error
            }],
            isError: true
          };
        }
    
        const responseText = format === "json"
          ? `System information (${format} format):\n\n${JSON.stringify(result.data, null, 2)}`
          : `System information (${format} format):\n\n${result.data}`;
    
        return {
          content: [{
            type: "text",
            text: responseText
          }]
        };
      }
    );
  • Helper function executeMagerun2Command used by 'sys-info' handler (and others) to run magerun2 CLI commands safely with consistent error handling and optional JSON parsing.
    async function executeMagerun2Command(command: string, parseJson: boolean = false): Promise<{
      success: true;
      data: any;
      rawOutput: string;
    } | {
      success: false;
      error: string;
      isError: true;
    }> {
      try {
        const { stdout, stderr } = await execAsync(command, {
          cwd: process.cwd(),
          timeout: 30000 // 30 second timeout
        });
    
        if (stderr && stderr.trim()) {
          console.error("magerun2 stderr:", stderr);
        }
    
        if (parseJson) {
          try {
            return { success: true, data: JSON.parse(stdout), rawOutput: stdout };
          } catch (parseError) {
            return {
              success: false,
              error: `Error parsing magerun2 JSON output: ${parseError}\n\nRaw output:\n${stdout}`,
              isError: true
            };
          }
        }
    
        return { success: true, data: stdout.trim(), rawOutput: stdout };
    
      } catch (error) {
        const errorMessage = error instanceof Error ? error.message : String(error);
    
        // Check if magerun2 is not found
        if (errorMessage.includes("command not found") || errorMessage.includes("not recognized")) {
          return {
            success: false,
            error: "Error: magerun2 command not found. Please ensure n98-magerun2 is installed and available in your PATH.\n\nInstallation instructions: https://github.com/netz98/n98-magerun2",
            isError: true
          };
        }
    
        // Check if not in Magento directory
        if (errorMessage.includes("not a Magento installation") || errorMessage.includes("app/etc/env.php")) {
          return {
            success: false,
            error: "Error: Current directory does not appear to be a Magento 2 installation. Please run this command from your Magento 2 root directory.",
            isError: true
          };
        }
    
        return {
          success: false,
          error: `Error executing magerun2 command: ${errorMessage}`,
          isError: true
        };
      }
    }
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It states it's a read operation ('Get'), but doesn't disclose behavioral traits like permissions needed, rate limits, or what 'system information' entails (e.g., performance metrics, configuration). This is a significant gap for a tool with no annotation coverage.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence with no wasted words. It's front-loaded with the core purpose, making it appropriately sized and structured for its simplicity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no annotations and no output schema, the description is incomplete. It doesn't explain what 'system information' includes or the return format, leaving gaps for an agent to understand the tool's behavior and output fully.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, with the single parameter 'format' fully documented in the schema (including enum values and default). The description doesn't add any parameter semantics beyond what the schema provides, so it meets the baseline for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Get') and resource ('Magento 2 system information'), making the purpose understandable. However, it doesn't differentiate from siblings like 'sys-check' or 'sys-cron-list', which might also retrieve system-related data, so it lacks sibling distinction.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. With siblings like 'sys-check' and 'sys-cron-list', the description doesn't specify if this is for general system info or something more specific, leaving usage unclear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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