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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is covered without the description. The description adds nothing further — notably it omits the critical behavior that neither parameter is required in schema, so it never says what happens if both are null or what an invalid id returns.

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 sentence with no padding, and the identifiers are named up front. It is terse to the point of under-specification rather than verbose.

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 read tool with annotations and no output schema, this is close to adequate, but the missing one-of-the-parameters constraint and the absence of any note on return shape or error behavior leave real gaps for an agent with a 0%-covered schema.

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 carries the burden, and it does add the genuinely useful "or" relationship between redirect_id and redirect_uuid as alternative lookup keys. It stops short of stating that at least one is required or how conflicts between the two are resolved.

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 ("Fetch a single seliee_redirect") and names the two lookup keys. The word "single" distinguishes it from list_redirects and get_redirect_statistics implicitly, though neither sibling is named explicitly.

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 guidance on when to call this versus list_redirects or get_redirect_statistics, and no statement of prerequisites. The only implied usage is that you must have an id or uuid, which the reader must infer from the parameter list.

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