Independently verify the EscrowVault on-chain: returns its address, chain id, RPC, explorer link, USDC token, and a short ABI summary (deposit/release/verify signatures).
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
| Name | Required | Description | Default |
|---|---|---|---|
| chain | No | ||
| message | No | ||
| rpc_url | No | ||
| chain_id | No | ||
| configured | Yes | ||
| usdc_token | No | ||
| abi_summary | No | ||
| explorer_url | No | ||
| verify_recipe | No | ||
| contract_address | No |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered by structured data. The description adds a behavioral trait: it performs an independent on-chain check and returns a list of details, which is useful context. However, it does not specify any additional side effects, authentication requirements, or rate limits, so with annotation coverage already in place, a 3 is appropriate.
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 definition is one concise sentence with front-loaded purpose ('Independently verify the EscrowVault'), immediately followed by a compact list of return items. Every element serves a purpose, with no redundancy or waste.
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 zero-parameter tool with annotations already covering safety and an output schema present (noted in signal), the description sufficiently covers what the tool does, what it returns, and the scope of verification. There is no missing knowledge that would prevent an agent from correctly invoking it.
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 input schema has zero parameters, and baseline as indicated is 4 for tools with no parameters. The description becomes unnecessary for parameter explanation because it has already clearly stated the return from on-chain state, and implicitly derives the owner from the authenticated principal. There is nothing to add beyond the schema description.
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 the verb 'verify' and the resource 'EscrowVault', and enumerates the exact output: address, chain id, RPC, explorer link, USDC token, and ABI summary. It distinguishes from all siblings by its specific scope (on-chain verification of a specific contract) and its zero-parameter interface.
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 implies when to use it (when it is necessary to independently verify the on-chain contract details), but it does not explicitly mention any alternative tools or conditions that would select another sibling. It provides the context that it is an 'independent verify' action, but lacks explicit exclusions or comparisons (e.g., 'use get_agent_contract instead for...').
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Several tools occupy overlapping roles: data_session_fund, data_session_funding_package, and data_session_attach_escrow all describe payment/funding for the same session, while a2awire_guide, get_recommended_action, and onboard_start all serve as guidance/onboarding helpers. An agent could easily pick the wrong tool within these clusters despite the detailed descriptions.
Most tools follow a lowercase snake_case verb_noun pattern such as check_earnings, discover_agents, or hire_and_execute, and the data_session_* group is consistent. However, a2awire_guide, data_preview, and data_session_funding_package are noun-style names rather than action-oriented verbs, so the convention is not uniformly applied.
Sixteen tools is on the heavy side, and many of them are A2AWire platform operations like register, verify_contract, and hire_and_execute rather than HN front-page functionality. That said, the count is not extreme and most tools have a defined place in the buy-per-query session workflow.
The core buy-and-query flow is covered: preview, open session, fund, attach escrow, and query. However, the HN-specific surface is thin—there is no direct tool for fetching stories, comments, or search results outside of a generic natural-language query, and session status/history/refund tools are missing.