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

With no annotations, the description carries the full burden of behavioral disclosure. It mentions 'live computed signal' and an unclear 'Turns r Price 0.01 via x402 (USDC on Base)' fragment, but it does not clarify what this means, what the tool returns, whether any state changes occur, or whether any auth is needed. The garbled payment-related sentence adds confusion rather than transparency.

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 beginning is reasonably front-loaded, but the trailing 'Turns r Price 0.01 via x402 (USDC on Base)' is unclear and ungrammatical, sacrificing clarity. This does not read as deliberate conciseness but as an incomplete or corrupted sentence.

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 description is not complete for a tool with no output schema, no annotations, and many closely related siblings. It omits the underlying data domain (open interest), does not describe the returned signal shape, and fails to explain the cryptic payment/cost mention, leaving an agent uncertain about how to interpret the result or whether invoking it incurs a charge.

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 description coverage is 100%, and there is only one optional wallet parameter whose meaning is already documented in the schema. The tool description itself adds no real parameter explanation; the baseline of 3 is appropriate because the schema carries the full burden.

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 a specific verb ('get live computed signal') and identifies a processed analytics layer over crypto derivatives with concrete components: 30-period percentile rank, 4-period momentum, and a trend verdict. It does not explicitly tie the tool to open interest or differentiate it from the many processed_crypto_* siblings, though the name supplies that link.

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?

No guidance is given for when to use this tool versus alternatives like processed_crypto_funding_rates or processed_crypto_prices. The description implies use for processed crypto signals but does not state criteria, exclusions, or context that would distinguish it from siblings.

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