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

With no annotations, the description carries the full burden and does it well: 404 for untracked pools (not charged), 20 s rewrite cadence with up-to-30 s lag, 503 refusal for data older than 120 s (not charged), and a stated price of $0.005 USDC via x402. These are exactly the failure modes, staleness and cost facts an agent needs before calling.

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?

Purpose and return shape are front-loaded, then error/cost behavior. Dense and information-rich, with every clause (404, staleness, pricing) earning its place, though the single long parenthetical-of-clauses could be split for readability.

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?

An output schema exists so return values needn't be detailed, yet the description still summarizes them; combined with dependency source, error semantics, freshness guarantees and per-call pricing, an agent has everything required to call this correctly.

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 the schema already documents the id as a v4 bytes32 hex or v3 address from rh_pools_new, so the description mostly repeats it. It does add that id is a path parameter, but adds no format examples or validation detail beyond the schema; baseline 3 applies.

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?

States a specific verb+resource: fetch one Robinhood Chain Uniswap pool's flow by v4 pool id or v3 address. The scope (single pool, 1-minute buckets over the last 60 minutes plus burst history) clearly separates it from list-style siblings like rh_pools_new and the rh_bursts_* tools.

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 names the upstream source for the id (/v1/rh/pools/new, i.e., rh_pools_new), which is genuine usage guidance. However it never says when to prefer this tool over rh_bursts_live or rh_bursts_history, despite overlapping on burst data, and gives no explicit exclusions.

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