get_moltbook_digest

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

No annotations are provided, so the description carries the full burden. It discloses that the tool is free, rate-limited to 1 request per 5 minutes, and requires no API key. It also states what the response includes. This goes beyond a simple 'get' verb and provides meaningful operational context for a read-only, no-parameter tool. It could mention behavior on rate-limit violation, but that is minor.

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 tight two-sentence structure: the first sentence states the purpose and content, the second covers return fields and constraints. Every clause carries information, and the most important details are front-loaded. There is no fluff or redundancy.

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 no-parameter tool with no output schema, the description covers the essentials: what it does, what it returns, rate limits, and authentication requirements. It does not compare to siblings or explain how to retrieve historical data, but those are not necessary for invocating this specific tool correctly. The only slight gap is the lack of sibling routing, which is already scored under usage guidelines.

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 tool has zero parameters, and the input schema is empty, so schema coverage is effectively 100%. According to the rubric, the baseline for 0 parameters is 4. The description does not need to explain parameters since none exist, and it correctly omits any such details.

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 identifies the resource as the 'Moltbook community digest' and the action as retrieving the latest hourly version. It enumerates the content (sentiment, trending topics, narratives, discussions) and the return fields (title, summary, markdown, sentiment scores, narrative tracking). This distinguishes it from siblings like get_moltbook_sample (sample) and get_moltbook_history (history) by emphasizing the hourly, latest nature.

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 implies usage for the latest hourly digest ('latest hourly', 'past hour') but does not explicitly mention alternatives or when not to use it. There are many Moltbook-related siblings, but the description never directs the agent, e.g., 'for historical data use get_moltbook_history'. The context is clear about recency, but no exclusions or alternatives are named.

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