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

No annotations are provided, so the description must carry the full burden. It does not disclose that this is a write/mutation operation, whether it requires authentication, what the side effects are (e.g., irreversible vote), or if it is idempotent. The description is too brief to inform an agent about 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 compact (two sentences) and front-loaded with the action. However, it is excessively terse, omitting important details that would make it valuable. The conciseness comes at the cost of completeness, earning a middle score.

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 parameters, no output schema, no nested objects), the description should at least explain the session token's purpose and how to obtain it, and what the tool returns. The reference to list_channels is good, but the overall description leaves significant gaps for an agent to use the tool correctly.

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% and the description adds no meaning beyond the parameter names. 'session_token' is ambiguous (origin, format) and 'channel' is not explained (e.g., slug vs ID). The description does not help an agent understand or correctly fill these parameters.

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 ('Vote for a proposed channel') and the purpose ('Votes determine build order'). It also references a sibling tool (list_channels) to find the required channel slug, helping distinguish the tool's input. However, it does not explicitly differentiate from other voting or action 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?

The description provides a prerequisite ('Use list_channels to see proposed channel slugs'), which is helpful. However, it does not advise when to use this tool versus alternatives, nor does it mention any constraints (e.g., one vote per session, reversibility). The guidance is minimal but sufficient for a simple voting action.

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