vk_post_kind_8f46997cec95

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

With no annotations provided, the description carries the full burden. It discloses that authentication is required, that it's a raw proxy, and that parameters are top-level. However, it does not describe return values, error handling, idempotency, or side effects beyond the reaction removal, leaving behavioral details incomplete.

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 short but repeats itself: 'Removes the user's reaction' and 'Removes the reaction of that user' convey the same information. Front-loading is decent, but the redundancy could be trimmed without losing meaning.

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?

The tool has no output schema and annotations are absent, so the description should explain return values and clarify request/response behavior. It does not mention what happens on success or failure, and the body parameter semantics are contradictory, leaving the agent with incomplete information for correct invocation.

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 description adds useful conventions (path/query top-level fields, camelCase/snake_case aliases), but it directly contradicts the schema by calling the 'body' field optional while the schema marks it required. It also fails to clarify the body content—the schema describes it as 'the reaction you want to add,' which conflicts with the tool's removal purpose. This undermines parameter understanding.

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's function: 'Removes the user's reaction' and 'Removes the reaction of that user on that entity.' It identifies the specific resource (reactions on a Vikunja entity) and the action (removal), distinguishing it from sibling tools that handle other operations like creating tasks or projects.

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 context on how to use the tool (raw REST proxy, auth required, parameter conventions) but does not explicitly state when to use it versus alternatives or mention any exclusion criteria. It implies usage for direct API access but lacks explicit 'use this instead of X' guidance.

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