execute

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

With no annotations, the description must disclose behavioral traits. It mentions 'guarded' and 'when writes are explicitly enabled', hinting at safety mechanisms, but does not explain what 'guarded' entails, whether changes are reversible, permission requirements, or likely side effects. For a mutating tool, this leaves significant ambiguity.

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 entire description is one sentence with no filler. It conveys the core purpose in a compact, front-loaded manner. Every word earns its place, even if the content is thin.

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 has 3 parameters, no annotations, and a write side-effect, the description is too sparse. It does not explain the return format, error behavior, or how to use params/database. The 'guarded' and 'enabled' context helps but is insufficient for safe invocation of a DML tool.

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% and the description provides zero information about the parameters (sql, params, database). The agent cannot learn what 'params' means (e.g., bind parameters) or how 'database' is used, leaving the tool's invocation underspecified.

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 executes a DML statement, which distinguishes it from the sibling 'query' tool (reads). The qualifiers 'guarded' and 'when writes are explicitly enabled' add context, though 'guarded' is somewhat vague. It identifies the action and resource sufficiently.

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 this is for write operations ('DML statement') and is conditioned on writes being enabled, but it does not explicitly contrast with 'query' or state when NOT to use it. The context is clear enough for a user already familiar with the tool set, but lacks explicit alternative guidance.

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