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

No annotations provided, so description must cover behavioral traits. It discloses upload action, max size (2 MiB), allowed content types, and return format. Lacks information on synchronicity, costs (though 'funded' hints at prepaid), failure modes, or persistence guarantees.

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?

Three sentences, front-loaded with main action, each sentence adds distinct info. No redundant or vague language.

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?

Given low parameter count (2), no output schema, and no annotations, description covers input constraints and expected output adequately. Missing error handling detail, but overall sufficient for basic use.

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 covers 50% parameters with descriptions; the description compensates by enumerating allowed contentTypes and clarifying max size from schema. Adds meaning beyond schema by grouping constraints concisely.

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 tool uploads a base64-encoded file to Arweave via a funded Irys account, specifying resource (Arweave), verb (upload), and scope (JSON-only, agents without wallet). It distinguishes from siblings which handle on-chain Solana operations.

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?

Explicitly states usage for agents without wallet-adapter integration and JSON-only, implying context. Does not explicitly state when not to use, but sibling tools are all different actions, so no ambiguity.

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