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Magento 2 Development MCP Server

by elgentos

Cache Enable

cache-enable

Enable specific Magento 2 cache types to improve website performance and ensure proper functionality by activating selected caching mechanisms.

Instructions

Enable specific Magento 2 cache types

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
typesYesCache types to enable

Implementation Reference

  • The handler function for the 'cache-enable' tool. It constructs the 'magerun2 cache:enable' command using the input types and executes it with error handling and response formatting.
    async ({ types }) => {
      const command = `magerun2 cache:enable ${types.join(' ')}`;
      const result = await executeMagerun2Command(command);
    
      if (!result.success) {
        return {
          content: [{
            type: "text",
            text: result.error
          }],
          isError: result.isError
        };
      }
    
      return {
        content: [{
          type: "text",
          text: `Cache types enabled:\n\n${result.data}`
        }]
      };
  • The input schema for the 'cache-enable' tool, defining an array of strings for cache types that must have at least one entry.
    {
      title: "Cache Enable",
      description: "Enable specific Magento 2 cache types",
      inputSchema: {
        types: z.array(z.string())
          .min(1)
          .describe("Cache types to enable")
      }
    },
  • src/index.ts:227-258 (registration)
    The server.registerTool call that registers the 'cache-enable' MCP tool with its schema and handler.
    server.registerTool(
      "cache-enable",
      {
        title: "Cache Enable",
        description: "Enable specific Magento 2 cache types",
        inputSchema: {
          types: z.array(z.string())
            .min(1)
            .describe("Cache types to enable")
        }
      },
      async ({ types }) => {
        const command = `magerun2 cache:enable ${types.join(' ')}`;
        const result = await executeMagerun2Command(command);
    
        if (!result.success) {
          return {
            content: [{
              type: "text",
              text: result.error
            }],
            isError: result.isError
          };
        }
    
        return {
          content: [{
            type: "text",
            text: `Cache types enabled:\n\n${result.data}`
          }]
        };
      }
  • Shared helper function used by the cache-enable handler (and other tools) to execute magerun2 commands safely with timeout, JSON parsing option, and Magento-specific error handling.
    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?

With no annotations provided, the description carries full burden for behavioral disclosure. It states what the tool does but doesn't describe important behavioral aspects: whether this requires admin permissions, if it's reversible, what happens when enabling already-enabled caches, or potential performance impacts. The description is minimal and lacks operational context.

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 extremely concise at just 5 words, front-loading the essential information with zero wasted words. It efficiently communicates the core functionality without unnecessary elaboration or redundancy.

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?

For a mutation tool with no annotations and no output schema, the description is insufficiently complete. It doesn't explain what 'enabling' entails operationally, what the expected outcome is, or provide any context about Magento 2 cache types. Users must infer these details from the tool name and minimal description.

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?

The schema description coverage is 100%, with the single parameter 'types' clearly documented as 'Cache types to enable'. The description adds no additional parameter semantics beyond what the schema already provides, so it meets the baseline for adequate but not exceptional parameter documentation.

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 ('Enable') and target resource ('specific Magento 2 cache types'), making the purpose immediately understandable. However, it doesn't explicitly distinguish this tool from its sibling 'cache-disable', which performs the opposite operation, missing an opportunity for clearer differentiation.

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?

The description provides no guidance on when to use this tool versus alternatives like 'cache-disable' or 'cache-clean'. It doesn't mention prerequisites, typical use cases, or scenarios where enabling cache types is appropriate versus other cache management operations.

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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