spinnaker-mcp

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Get application

get_application

Read-onlyIdempotent

Retrieve detailed configuration for a Spinnaker application, including accounts, clusters, and custom attributes, to inspect settings before modifying pipelines or infrastructure.

Instructions

Get detailed information about a single Spinnaker application including its accounts, clusters, and custom attributes. Use this to inspect an application's configuration before modifying its pipelines or infrastructure. Returns JSON with application metadata, associated cloud accounts, and cluster details.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "application": "<application>"
    },
    "name": "get_application"
  }
}

Input Schema

Name	Required	Description	Default
`application`	Yes	Application name as registered in Spinnaker

Output Schema

Name	Required	Description	Default
`count`	No	Number of records in items.
`items`	No	The records, when Gate answered with a list.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv0.4.1Nov 1, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "description": "The Gate response. A JSON object from Gate comes back as is; a JSON array comes back as {items, count}.",
+  "properties": {
+    "count": {
+      "description": "Number of records in items.",
+      "minimum": 0,
+      "type": "integer"
+    },
+    "items": {
+      "description": "The records, when Gate answered with a list.",
+      "type": "array"
+    }
+  },
+  "type": "object"
+}

First observedv0.1.0Apr 23, 2026

TDQS

A4.3/5.0

Behavior4/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful context about what is returned, including application metadata, associated cloud accounts, and cluster details, though it does not discuss permissions or error 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 three sentences, front-loaded with the core purpose and followed by usage context and return details. Every sentence contributes useful information without repetition or padding.

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

Completeness5/5

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

For a simple single-resource read tool with one parameter, rich annotations, and an output schema, the description is complete enough to call correctly. It explains purpose, usage context, and return contents without needing to restate schema or output-schema details.

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?

There is one parameter and the schema description coverage is 100%; the schema already explains that 'application' is the application name as registered in Spinnaker. The description adds no syntax or format guidance beyond the schema, so the baseline of 3 is appropriate.

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?

The description states a specific verb and resource: get detailed information about a single Spinnaker application. It clearly distinguishes the tool from list_applications by emphasizing a single application, and from sibling get_* tools by naming application-level contents such as accounts, clusters, and custom attributes.

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

Usage Guidelines4/5

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

It gives a clear usage context: inspect an application's configuration before modifying pipelines or infrastructure. It does not explicitly name alternatives or exclusions, such as using list_applications first to discover application names, so it falls short of a 5.

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