db.validate_insert

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

With no annotations, the description carries the full burden and it delivers: it states that rows are never inserted via EXPLAIN without ANALYZE, and adds a behavioral constraint about parameterized validation being single-statement. This provides substantial transparency beyond the raw schema.

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-loaded with the main purpose and immediately followed by the key constraint. Every sentence adds value, with no fluff or repetition of schema details.

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 core purpose and safety guarantee, but lacks details on return behavior (there is no output schema) and does not explain the 'database' parameter. Given the moderate complexity and absence of annotations, this leaves notable 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 description coverage is 0%, so the description must compensate. It only mentions 'parameterized validation' as a concept but does not explain the meaning or usage of the 'params' array or the 'database' parameter. This is insufficient for the three parameters present.

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 validates INSERT statements without executing them, using a specific verb ('Validate') and resource ('INSERT statements'). This distinguishes it from sibling tools like db.validate_sql and db.explain by focusing specifically on INSERT statements.

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 gives clear context: use this to validate INSERT statements without side effects, and notes a key constraint that parameterized validation must be single-statement. It does not explicitly name alternatives or exclusions, but the dedicated purpose is evident.

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