list_chains

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

No annotations are present, so the description must fully disclose behavior. It only indicates the type of racks supported but omits critical details like whether chains include nested racks, the format of the output (e.g., names, indices), or any side effects. The description is insufficient for an agent to anticipate tool behavior.

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 short sentence, making it very concise. However, it sacrifices necessary detail for brevity; it could include parameter context or output hints without losing conciseness.

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?

Despite having an output schema (which the description does not reference), the description fails to explain input parameters, output structure, or edge cases. For a tool with two required parameters and a likely important output, the description is too sparse to be complete.

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 what track_index and device_index represent. It adds no meaning beyond the parameter names, leaving the agent to guess their roles and valid ranges.

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 ('List all chains') and identifies the specific resources ('Instrument Rack, Effect Rack, or Drum Rack'). It distinguishes from sibling tools like get_chain_details or get_chain_devices by focusing on listing all chains rather than retrieving details or devices of a specific chain.

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 guidance is provided on when to use this tool versus alternatives such as get_chain_details or get_rack_info. The description does not mention context, prerequisites, or exclusions.

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