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describe-configmap

Retrieve detailed information about a specific Kubernetes ConfigMap resource, including its data, metadata, and configuration details for cluster management.

Instructions

Describe details of a Kubernetes configmap

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
configmapYesThe name of the configmap to describe
namespaceNoThe namespace of the configmap (optional, defaults to current context namespace)

Implementation Reference

  • The handler function that implements the core logic for the 'describe-configmap' tool by executing the 'kubectl describe configmap' command with the provided configmap name and optional namespace.
    case "describe-configmap": {
      const { configmap, namespace } = args;
      const nsArg = namespace ? `-n ${namespace}` : "";
      const cmd = `kubectl describe configmap ${configmap} ${nsArg}`;
      const { stdout } = await execAsync(cmd);
      return {
        content: [{ type: "text", text: stdout || "No configmap details found" }]
      };
    }
  • The input schema definition for the 'describe-configmap' tool, including parameters for configmap name (required) and optional namespace.
      name: "describe-configmap",
      description: "Describe details of a Kubernetes configmap",
      inputSchema: {
        type: "object",
        properties: {
          configmap: { 
            type: "string",
            description: "The name of the configmap to describe"
          },
          namespace: { 
            type: "string",
            description: "The namespace of the configmap (optional, defaults to current context namespace)"
          }
        },
        required: ["configmap"]
      }
    },
  • server.js:1392-1394 (registration)
    The tool list registration handler that includes 'describe-configmap' in the list of available tools returned to MCP clients.
    server.setRequestHandler(ListToolsRequestSchema, async () => {
      return { tools };
    });
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 the tool 'describes details' but doesn't specify what details are included, whether it's a read-only operation, if it requires specific permissions, or what the output format looks like. This leaves significant gaps for an agent to understand the tool's behavior.

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 that gets straight to the point with zero wasted words. It's appropriately sized for a simple tool and front-loads the essential information.

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 Kubernetes tool with no annotations and no output schema, the description is insufficient. It doesn't explain what 'describe' means operationally, what details are returned, or how this differs from similar 'get' operations. Given the complexity of Kubernetes resources and the rich sibling toolset, more context is needed.

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%, so the schema already fully documents both parameters. The description adds no additional meaning about parameter usage, constraints, or examples beyond what's in the schema. This 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 ('describe details') and resource ('Kubernetes configmap'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like 'get-configmap' or 'describe-pod', which would require more specificity about what 'describe' entails versus 'get' operations.

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 'get-configmap' or 'list-configmaps'. There's no mention of prerequisites, context requirements, or differences in output format compared to similar tools in the sibling list.

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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