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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description adds only the mapping of the three actions to categories of answer data, and says nothing about result size, pagination, or permissions. No contradiction, but modest added value over annotations.

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?

Two compact sentences with no filler, and the resource scope is front-loaded ahead of the action list. It is appropriately sized, though the second sentence is essentially a pointer rather than content.

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 dispatcher tool with a nested freeform params object, no output schema and a required help call, the description tells the agent how to obtain field definitions but leaves the callable parameters undocumented up front. This is a workable pattern but forces a discovery round-trip to invoke 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 coverage is 50%: the action enum is self-documenting, but the freeform params object (additionalProperties=true) is entirely opaque. The description partly compensates by associating library/finished/ask_library with answer categories, but it explicitly defers field-level detail to a runtime "help" call rather than explaining the 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 names the specific data retrieved (saved answers, finished questions, questions about them) and enumerates the three actions, so an agent knows this is a read tool for answer content. It is clear enough to distinguish from most siblings, though it never contrasts with manage_answers, which is the natural write-side counterpart.

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 choose this tool over alternatives such as manage_answers, nor any prerequisite or exclusion statements. The only procedural hint is to call action "help", which is about discovering fields, not about selecting the tool.

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