Create Data Store

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

Annotations supply only destructiveHint=false, so the description carries most of the behavioral burden. It discloses that the store is readable and writable by this user's flows, which is useful scoping context, but says nothing about name uniqueness, creation limits, permissions, or what happens if a store with the same name exists.

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?

A single front-loaded sentence with no filler. The phrasing 'the flows of this user' is slightly awkward but conveys the ownership scope 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 creation tool with no output schema, the definition is minimally adequate. It omits whether a store identifier is returned, whether names must be unique, and any failure conditions an agent would need to handle correctly.

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 100% and the single 'name' parameter is documented in the schema. The description adds no constraint or format detail beyond that, so the baseline 3 applies for a one-parameter tool whose schema does the heavy lifting.

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 gives a specific verb and resource ('Create a data store'), which clearly separates it from siblings like list_stores, get_store_records, and set_store_record. It does not explicitly name those alternatives, but the create-vs-read/write distinction is unambiguous from the verb alone.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives such as list_stores for checking existing stores before creation. The only context is an implied ownership scope ('the flows of this user'), which is not framed as guidance.

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