athena_impossible_state

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

With no annotations, the description must stand alone. It states the operation is a read, which implies non-destructive behavior, and adds a sync prerequisite. But it does not explain what happens if the sync is not fresh, nor describe the response structure or any potential side effects.

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 sentence, front-loaded with the action ('Read'), and contains no filler. It is efficient, though it omits critical details that could be communicated with slightly more structure.

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 tool with three parameters and no output schema or annotations, the description is under-specified. It gives the basic purpose and a timing condition but leaves parameter semantics, return values, and error conditions completely unaddressed.

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 schema has three parameters (remote, quest_id, shared_remote_mode) with 0% description coverage. The description does not mention any of them or their meanings, so the agent has no guidance on how to populate them, especially the enum for shared_remote_mode.

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 specifies a concrete read operation ('Read one Impossible Challenge and its completions') and includes a precondition ('after a fresh shared Message Board sync'). This distinguishes it from sibling tools like athena_impossible_open or athena_impossible_complete, though the meaning of 'Impossible Challenge' and 'completions' is not elaborated.

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?

It clearly states a context for use ('after a fresh shared Message Board sync'), which tells the agent when to call it. However, it does not mention alternatives or explicit exclusion of other tools, so it falls short of a 5.

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