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Prowlarr MCP server

by rollecode

create_applications_test

Idempotent

Test application configuration validity by posting to Prowlarr's applications test endpoint. Validates the submitted payload before saving.

Instructions

Create Application.

POST /api/v1/applications/test

Args: body: Request payload. Read the matching GET or the /schema endpoint first to see the fields this resource expects. force_test: Query parameter.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bodyYes
force_testNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
Behavior2/5

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

Annotations already declare readOnlyHint=false, idempotentHint=true, and destructiveHint=false, and the description does not contradict them. However, the description adds essentially no behavioral context beyond the annotations: it does not disclose whether this endpoint persists a real application or merely validates the payload, which is the key behavioral ambiguity of a '/test' endpoint. It also doesn't explain the meaning of 'force_test' behaviorally.

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

Conciseness4/5

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

The description is compact with the core action front-loaded; the endpoint and args follow in a scannable format. No filler or repetition. However, the brevity leaves room for a sentence clarifying the test semantics that would have made better use of the available space.

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?

With 0% schema coverage, nested objects, and a meaningful sibling distinction, the description is under-specified. The missing clarification of what 'test' does, whether the operation persists, and when force_test should be set, leaves an agent uncertain about the outcome of invoking this endpoint. The pointer to GET/schema endpoints helps but does not fill the main gap.

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 0%, so the description carries the burden. It provides genuinely useful guidance for 'body' (read the matching GET or /schema endpoint to learn expected fields), which compensates for the opaque additionalProperties:true schema. However, 'force_test' is only labeled 'Query parameter,' adding no meaning beyond the schema's boolean/null type. Compensation is partial at best.

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 states a clear verb and resource ('Create Application') and provides the HTTP endpoint, so an agent can tell this performs creation of an application resource. It is not a tautology of the tool name. However, it does not differentiate this 'test' variant from the sibling create_applications, leaving ambiguity about what makes the /test endpoint distinct.

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?

There is no guidance on when to use this tool versus create_applications, create_applications_testall, or create_applications_action_by_name. The name suggests a test variant, but the description never states when the test endpoint is appropriate or when the regular create should be used instead. An agent gets no decision support for choosing among the create-application siblings.

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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