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

The description implies a non-destructive comparison operation, but it does not disclose the output format, whether the tool is read-only, required permissions, or behavior on invalid input. With no annotations provided, the description fails to fully cover behavioral traits.

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

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

The description is a single sentence, efficient but insufficiently informative. While it avoids fluff, it omits critical details such as parameter roles and behavioral context, reducing its utility for agent decision-making.

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

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

Given the lack of output schema and the richness of sibling tools (simulate, patch, backup), the description is too minimal. It provides no guidance on interpreting the diff, how it integrates into a workflow, or safety considerations, leaving significant gaps for a tool that likely requires nuanced use.

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

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

The input schema has 0% description coverage, and the tool description does not explain the parameters ('backupFile', 'app'). The agent receives no guidance on what values to provide or their meaning, making parameter usage entirely reliant on schema types and names.

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

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

The description clearly states the tool compares a backup against the current Servarr configuration, employing a specific verb ('compare') and resource ('backup'). This uniquely distinguishes it from siblings like create_backup, restore_backup, apply_patch, and various simulation tools.

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

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

No explicit guidance is provided on when to use this tool versus alternatives (e.g., apply_patch, dry_run_patch). There is no mention of prerequisites or typical workflow, leaving the agent to infer usage purely from the tool name and description.

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