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rollecode

Prowlarr MCP server

by rollecode

create_applications

Idempotent

Creates a new application in Prowlarr by submitting the required payload. Optionally force save to apply the configuration even if validation issues exist.

Instructions

Create Application.

POST /api/v1/applications

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

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bodyYes
force_saveNo

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 indicate this is a non-read-only, idempotent, non-destructive operation, so the description does not need to restate those basics. However, it adds little behavioral context beyond the endpoint; it does not describe side effects, validation behavior, or what happens on save, which would have added value beyond the annotations.

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 and front-loads the core purpose and endpoint. The Args list is minimal, though 'force_save: Query parameter' adds little value beyond the schema and the 'Create Application' line is slightly redundant with the endpoint.

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 an open body object and no parameter descriptions in the schema, the description does not fully equip an agent to call the tool correctly. It wisely directs the agent to GET/schema endpoints for body fields, but it leaves force_save semantics unexplained and offers no alternative-selection guidance.

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?

Schema description coverage is 0%, so the description carries the burden for explaining the parameters. It does describe 'body' as the request payload and points to GET/schema for field details, but 'force_save' is only labeled 'Query parameter' with no explanation of its effect, leaving a significant semantic gap.

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 'Create Application' and gives the exact HTTP endpoint, so an agent can tell it is the create operation for the applications resource. It does not explicitly differentiate itself from sibling tools like create_applications_action_by_name or create_applications_test, so it falls short of a 5.

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?

The description gives useful procedural guidance ('Read the matching GET or the /schema endpoint first'), but it does not state when to prefer this tool over alternatives or when not to use it. Usage context is implied by the name and endpoint rather than explicitly stated.

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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