execute

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

With no annotations, the description carries the full burden. It discloses that the tool returns no rows and lists potentially destructive operations (DELETE, CREATE). However, it does not explicitly warn about irreversible side effects, transaction handling, or permission requirements. It offers basic transparency but lacks the depth expected for a mutation-capable tool.

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, front-loaded sentence with no redundant words. It states the action, the object, and the key behavioral distinction ('without returning rows') efficiently.

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?

For a simple one-parameter tool with an output schema (per context signals), the description covers the core purpose and return behavior. It does not mention error handling or transaction behavior, but these are less critical given the tool's simplicity and the presence of an output schema explaining return values.

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 0%, so the description must compensate. It indirectly clarifies that the 'sql' parameter is the SQL statement to execute, but adds no explicit detail about the parameter's format, constraints, or examples. For a single self-named parameter it is adequate but not outstanding.

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 uses a specific verb 'Execute' and names the resource 'SQL statement', with clear scoping: 'without returning rows'. This distinguishes it from sibling tools like 'query' that return rows. The explicit list of statement types (INSERT, UPDATE, DELETE, CREATE) further clarifies its purpose.

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 phrase 'without returning rows' provides clear context that this tool is for non-query SQL statements, implying that 'query' should be used for statements that return rows. However, it does not explicitly name an alternative or state when not to use this tool, so it stops short of a 5.

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