Approve spender

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. While 'approve' implies a write operation that modifies token allowances, the description doesn't cover critical aspects like authorization requirements, whether this is reversible, gas costs, or what happens on success/failure. For a blockchain transaction tool with zero annotation coverage, 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?

The description is a single, efficient sentence with zero wasted words. It's appropriately sized for a simple tool and front-loads the core purpose immediately.

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 the complexity (blockchain token approval operation), lack of annotations, 0% schema coverage, and no output schema, the description is severely incomplete. It doesn't explain what the tool returns, error conditions, or the broader context of token allowances in DeFi systems. This leaves the agent with insufficient information to use the tool correctly.

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 description coverage is 0%, meaning none of the three parameters (address, spender, value) are documented in the schema. The description adds no information about what these parameters mean, their formats (e.g., Ethereum addresses, token amounts), or constraints. This fails to compensate for the complete lack of schema documentation.

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 ('approve allowance') and the target ('for a spender'), which is a specific verb+resource combination. However, it doesn't distinguish this tool from potential sibling tools like 'strato.tokens.transfer' or 'strato.tokens.transfer-from' that might also involve token permissions, so it doesn't reach the highest score.

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 provides no guidance on when to use this tool versus alternatives. There's no mention of prerequisites (e.g., token ownership), context (e.g., for DeFi interactions), or exclusions. With many sibling tools in the 'strato.tokens' namespace, this lack of differentiation is a significant gap.

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