set_track_arm

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

With no annotations, the description carries the full burden. It accurately describes the core behavior of arming/disarming a track, but does not disclose any side effects, prerequisites, or edge-case behaviors (e.g., invalid track_index, monitoring implications). The explanation 'True to arm for recording, False to disarm' adds some clarity but stops short of being comprehensive.

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: a single sentence plus two bullet-point parameter definitions. Every phrase earns its place, and the structure immediately conveys the tool's purpose and parameters without any fluff.

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 tool's simplicity (2 params, no output schema), the description covers the essential information. It explains both parameters and the overall action, making it complete for a basic setter. The only gaps are minor details like index base and potential side effects, which prevent a perfect score.

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?

Schema description coverage is 0%, so the description must compensate. It does define both parameters: track_index as 'the index of the track' and arm with clear True/False semantics. However, it doesn't specify whether track_index is zero-based or one-based, leaving an important detail ambiguous.

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 'Set the arm (record enable) state of a track', using a specific verb and resource. This distinguishes it from sibling tools like set_track_mute or set_track_solo, which have similar naming patterns.

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?

There is no guidance on when to use this tool vs alternatives. It does not mention related tools like unarm_all or set_track_monitoring, nor does it specify prerequisites such as the track being a recording track. The description only states what it does, leaving usage context entirely implicit.

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