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request_faucet

Request free testnet USDC on Base Sepolia to fund your wallet for database prototyping. Limited to 0.25 USDC per claim, one per IP per 24 hours.

Instructions

Request free testnet USDC from the Run402 faucet (Base Sepolia). Rate limit: 1 per IP per 24h. Returns 0.25 USDC — enough for 2 prototype databases.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
addressNoWallet address (0x...) to fund. If omitted, reads from local agent allowance file.
Behavior4/5

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

With no annotations, the description bears full burden. It discloses the return amount (0.25 USDC), rate limit (1 per IP per 24h), and network. It does not mention authentication requirements or side effects, but the behavior is adequately described for a simple faucet request.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with no wasted words. The first sentence states the core action and network, the second adds constraints and context. Perfectly front-loaded and efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple single-parameter tool with no output schema, the description covers purpose, constraints, and output sufficiently. An agent can decide to use it without needing more information.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, and the schema description already explains the 'address' parameter well. The tool description adds no further semantic meaning beyond what the schema provides, so baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool requests free testnet USDC from the Run402 faucet on Base Sepolia. It specifies the resource (testnet USDC) and the action (request), distinguishing it from sibling tools like check_balance or contract_call.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies use when needing testnet USDC for prototypes and mentions a rate limit, but does not explicitly state when not to use or list alternative tools. The context is clear, but no exclusions are given.

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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