create_tag

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

Annotations already indicate this is a mutating, non-destructive operation with open-world semantics. The description adds the requirement for a unique name and hex color, but largely restates the schema and does not disclose duplicate-handling behavior, persistence, or side effects beyond creation.

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 brief, front-loaded with the core action, and uses bullet-style guidance with no filler. Every sentence earns its place.

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 two-parameter create operation with complete schema coverage and informative annotations, the description covers the essential details. It does not explain error responses or duplicate-name behavior, but these are not critical for an agent to invoke the tool successfully with the required inputs.

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%, so the schema already documents both parameters with meaningful descriptions. The description echoes the uniqueness and hex-format requirements but adds no new parameter semantics beyond what the schema provides.

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 a specific verb and resource: 'create a new tag in your SimpleLocalize project.' This clearly distinguishes the tool from siblings like get_tags, update_tag, and delete_tag, so an agent can tell them apart without inspecting schemas.

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 makes the primary use case clear: creating a new tag and providing a unique name and color. It does not explicitly contrast with update_tag/delete_tag or state when not to use the tool, but the context is unambiguous and no exclusions are needed for this simple CRUD operation.

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