set_volume

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

No annotations are provided, so the description carries the full burden. It states the mutation ('set') but does not disclose potential side effects, reversibility, error handling for out-of-range levels, or any permission requirements. This is a minimal disclosure for a system-mutating tool.

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 extremely concise and well-structured: a single clear purpose sentence followed by an Args section documenting the parameter. No filler or redundant information.

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?

For a simple setter tool with one parameter and an output schema, this is reasonably complete. It explains the tool's purpose and parameter semantics. However, it does not mention behavior for invalid inputs (e.g., clamping vs error), which could be valuable, but the simplicity keeps this from being a major gap.

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 only defines 'level' as an integer with no description. The description compensates by explaining that the level ranges from 0 (mute) to 100 (max), adding crucial semantic meaning beyond the schema.

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 action (set) and the target (system volume level). It is specific and distinguishes from sibling tools like get_volume (retrieves) and toggle_mute (toggles between states).

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?

The description implies usage when a specific volume level needs to be set, but it does not explicitly mention when not to use it or provide alternatives like toggle_mute for muting. No exclusions or context are given.

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