Execute a saved query

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

Annotations already include readOnlyHint=true, and the description reinforces it. It adds genuinely useful behavioral context about a default 1,000-row cap, truncation notification, and the risk of unlimited queries. This goes beyond generic read-only labeling and explains important edge behavior.

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 efficient and well-structured: first the core action, then query parameters, then the critical row-limit behavior and caveat. Every sentence adds operational knowledge and the read-only note is prudently repeated despite the annotation.

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 3-parameter read-only query executor with no output schema, the description covers what an agent needs to invoke it correctly: the identifier, parameters, limit behavior, truncation behavior, and safety profile. It does not describe the exact response structure, but that is minimized by the absence of an output schema and the simplicity of the resource.

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?

The input schema already documents all 3 parameters with rich descriptions, so the baseline is 3. The description adds meaningful usage details above the schema: the default limit of 1,000, the effect of limit=0, and the shape of params as a name/value map. This justifies a 4.

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?

States the exact action ('Run a saved query by id'), the resource type (saved query), and the outcome (return its results). Distinguished from sibling tools like run_db_modification and get_resource by emphasizing saved, read-only query execution.

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?

Provides clear practical usage guidance: how to pass query parameters, the default row cap, why it exists, how to override it, and the warning about limit:0. It does not explicitly name alternatives or state when not to use this tool, but the context suggests this is the canonical read query executor.

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