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Prowlarr MCP server

by rollecode

create_system_backup_restore_by_id

Idempotent

Restore a Prowlarr system backup by its ID to recover previous settings and data.

Instructions

Create Backup.

POST /api/v1/system/backup/restore/{id}

Args: id: Path parameter.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.2/5.0
Behavior2/5

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

The annotations already signal a non-read-only, idempotent operation, so the description adds little behavioral context. It does not disclose side effects, prerequisites, or what happens to the system when a restore is triggered. The mention of POST and the path is routing information, not behavioral transparency.

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 well-structured, presenting the endpoint and parameter in separate sections with no excessive wording. The 'Create Backup' line is wasteful and inaccurate, but overall the format is clean and readable. It earns a high score for structure despite its lack of substance.

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 system restore operation, the description is incomplete: it never explains that the tool restores a backup by ID, nor what effects the restore has on the system. Since an output schema exists, return values are covered, but the core semantics and prerequisites are missing. An agent could easily misuse the tool or misunderstand its impact.

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 input schema has 0% description coverage, so the description carries the burden for explaining parameters. It only states that id is a path parameter, without clarifying that the id refers to a backup ID or how it is used. This is minimal added meaning beyond the schema's basic integer type.

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

Purpose2/5

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

The description says 'Create Backup' but the endpoint path is /restore/{id}, indicating this tool actually restores a backup, not creates one. The plain-language statement is misleading, and the tool name 'create_system_backup_restore_by_id' does not resolve the ambiguity. It fails to clearly state the resource and action, relying on the HTTP path for the real meaning.

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 alternatives such as create_system_backup_restore_upload or list_system_backup. The description does not explain whether to prefer this tool for restoring an existing backup by ID or when an upload is required. It effectively provides no usage context.

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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