Add Medium Domain

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

With no annotations provided, the description carries the behavioral disclosure burden. It does add the useful detail that the domain 'will be saved to config file', indicating persistence. However, it omits other behavioral aspects such as authentication requirements, duplicate handling, or whether the operation overwrites existing config entries.

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 exactly two sentences, front-loaded with the primary action and followed by a relevant side-effect note. Every word contributes to understanding the tool, with no redundancy or fluff.

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 tool, the description covers the essential operation and persistent effect. It does not mention return values or error/duplicate behavior, but the low complexity and clear intent make it sufficiently complete for an agent to select and invoke the tool 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?

The input schema already fully describes the single parameter 'domain' with examples (e.g., stackademic.com). The description adds no extra parameter semantics, but with 100% schema coverage, the baseline of 3 is appropriate.

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 action ('Add a custom Medium partner domain') and the target resource ('allowed list'), with a specific scope ('custom Medium partner domain'). This distinguishes it from sibling tools like 'remove_domain' and 'list_domains', making the purpose immediately obvious.

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 provides clear context for using the tool: adding a domain to the allowed list. It does not explicitly mention when not to use it or name alternative tools, but the purpose is unambiguous and naturally separates it from removal/listing operations.

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