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

With no annotations, the description carries the full behavioral burden. It usefully discloses the cost ($0.007) and that the call fans out into four aggregated signals, which is real added context. It does not state that it is read-only, whether it is rate-limited or cached, how fresh the underlying data is, or how the four signals are returned, which are material gaps for a paid aggregate call.

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?

A single sentence that front-loads price and the pre-trade timing, then lists the payload. Every clause carries information. The closing tagline '4 signals for the price of 1' is mildly promotional and could be dropped 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?

With no annotations and no output schema, the description is the only spec of what comes back, and it names the four signals but not their shape, units, or scale. For a zero-parameter bundle that is close to adequate, but an agent still cannot tell how to interpret 'market heat' or 'cascade risk' numerically before paying for the call.

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 takes zero parameters, so there is no parameter semantics to explain and the schema is trivially complete. The baseline of 4 applies; nothing in the description confuses or misrepresents the (empty) input contract.

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 a concrete verb ('one call returns') and enumerates four specific outputs: liquidation cascade risk, nearest liquidation clusters, market heat, and top-trader whale positioning. That is far more specific than a tautology. It stops short of 5 because it never distinguishes itself from overlapping siblings such as liquidation_pressure, liquidation_magnet, or market_pulse_bundle, leaving the agent to guess whether this bundle duplicates them.

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?

'Call this before you size or open any position' gives a clear triggering context and a stated benefit ('avoid entering just as leverage is about to unwind'). There are no exclusions or named alternatives for cases where a single-signal tool would suffice, so the agent is not told when not to use it.

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