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

No annotations are provided, so the description carries the behavioral disclosure burden. It adds useful context by noting the signal is live/computed and appears to involve a 0.05 cost via x402 on Base, plus the wallet schema implies a free-tier/auth model. However, it does not explicitly state read-only behavior, response behavior, rate limits, or the meaning of the pricing clause.

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 run-on sentence that mixes computation details, composite-layer description, and payment information. The 'plai Price' segment appears garbled or truncated, and the overall structure is not cleanly front-loaded or easy to parse.

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 output schema and no annotations, the description must explain what the tool returns, but it only lists computed components without defining the 16 series, the notion of 'member', or the response structure. An agent also lacks clear guidance on authentication and the exact payment flow, so the description is insufficient for reliably interpreting the result.

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 sole parameter, 'wallet', is already fully described in the input schema (100% coverage), so the tool description does not need to repeat it. The description's pricing clause hints at costs but does not clarify the wallet parameter's role in free-tier vs paid access. Baseline 3 applies because the schema handles parameter semantics.

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 states a specific action ('get live computed signal') and resource: a composite processed layer across 16 series, with named components (30-period percentile rank, 4-period momentum, cross-sectional ranking). It does not explicitly differentiate this from siblings like processed_global_indices or signal_global_indices, and the garbled 'plai Price' clause weakens clarity.

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 explicit when-to-use guidance, no exclusion of alternatives, and no prerequisite information. The label 'Finance Signal Bundle' only vaguely implies a use case, and the sibling list is large with similarly named processed_* tools, yet nothing in the description helps an agent choose between them.

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