allowance_create

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

Despite no annotations, the description discloses key behaviors: it generates cryptographic material, targets testnet only, and saves to a specific file path. It does not mention idempotency or overwrite behavior, but provides sufficient behavioral insight.

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 description is two sentences, front-loading the main action with no extraneous information. Every word serves a purpose.

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?

The description covers the purpose and file location but omits crucial output information. Since there is no output schema, the agent needs to know what the tool returns (e.g., private key, address). This gap reduces completeness.

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?

With zero parameters, the input schema provides no meaning. The description adds all necessary semantics by explaining the tool's operation and outputs. This goes beyond the baseline 3, as the description is essential for understanding the tool.

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 action 'Create a new local agent allowance', specifies the network (Base Sepolia testnet), and details the process (generate private key, derive address, save to file). It distinguishes itself from siblings like allowance_export and allowance_status.

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 (to create an allowance) but provides no explicit guidance on prerequisites, when not to use, or alternatives. The purpose is clear enough, but the agent lacks directives for context.

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