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razvanmacovei

Multi Cluster Kubernetes MCP Server

k8s_crds

List all Custom Resource Definitions (CRDs) installed in a Kubernetes cluster, displaying their name, group, version, scope, and status conditions.

Instructions

List all Custom Resource Definitions (CRDs) installed in the cluster. Shows CRD names, groups, versions, scope, and status conditions.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
contextYes
Behavior4/5

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

No annotations provided, but description clearly states listing operation and output fields, implying a safe read operation. Could explicitly state read-only nature.

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?

Two sentences, no fluff, front-loaded with action and resource. Every word is informative.

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

Completeness4/5

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

Given simplicity (1 param, no output schema, no annotations), description covers essential purpose and output. Could mention return format or use of context parameter.

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

Parameters2/5

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

The only parameter 'context' is not explained in description; schema coverage is 0%. Description adds no meaning beyond the schema, failing to compensate for the lack of parameter documentation.

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

Purpose5/5

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

Clear verb 'List' and specific resource 'Custom Resource Definitions (CRDs)' with details on output fields (names, groups, versions, scope, status conditions). Distinguishes from sibling tools like k8s_get_resources.

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

Usage Guidelines3/5

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

Implied usage for listing CRDs, but no explicit guidance on when to use versus alternatives like k8s_get_resources, nor exclusions or prerequisites.

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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