Robinhood Chain ERC-20 transfer history for an address: token, amount, counterparties, method, timestamps. Send { address }. [x402 paid tool — price $0.005; POST /api/rhchain/token-transfers]
| Name | Required | Description | Default |
|---|---|---|---|
| address | Yes | 0x address |
Changes observed during successful MCP inspections.
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 mentions the tool is paid ($0.005) and the endpoint, but does not disclose read-only nature, rate limits, or other behavioral traits. For a simple read tool, this is inadequate.
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?
Two sentences plus a bracketed note, front-loaded with purpose. No fluff, every sentence adds value. Highly concise.
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 simple tool with one param and no output schema, the description adequately covers purpose and outputs. It could mention result format or pagination, but not strictly necessary.
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 coverage is 100% with one param 'address' described as '0x address'. The description adds 'Send { address }' but does not enrich meaning beyond the schema. Baseline 3 is appropriate.
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 it provides ERC-20 transfer history for an address, listing fields (token, amount, counterparties, method, timestamps). It distinguishes from siblings like rhchain_tx (general transactions) and rhchain_balance by being specific to token transfers.
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 does not explicitly state when to use or not use this tool compared to alternatives like rhchain_activity or rhchain_tx. Usage is implied but no exclusions or context provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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