Metaplex-nft Verify Creator

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

The description adds behavioral details beyond annotations, such as 'requires creator's signature' and 'operation class write,' which are not captured in the annotations (readOnlyHint=false, dangerousHint=false). No contradictions with annotations.

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 unnecessarily verbose, including extraneous context about SAP MCP and agent identity. It front-loads the purpose but contains redundant information that could be streamlined.

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 tool's complexity and the existence of an output schema (though not shown), the description provides essential behavioral and prerequisite information. However, it lacks explanation of return values or error conditions, leaving gaps.

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 coverage is 100% with clear parameter descriptions ('NFT mint address (base58)', 'Creator wallet to verify'). The description does not add further semantics beyond the schema, meeting the baseline.

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's purpose: 'Verify a creator on an NFT's metadata (requires creator's signature).' It uses a specific verb-resource combination and distinguishes from sibling tools like metaplex-nft_verifyCollection.

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 context on when to use (e.g., Metaplex NFT workflows, creator verification) and includes prerequisites ('Confirm metadata URI, collection mint, creators, royalties...'). It does not explicitly state when not to use or contrast with alternatives, but the guidance is adequate.

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