set_cookie

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

No annotations are provided, so the description carries the full behavioral burden, and it discloses nothing: no mention of overwrite semantics for an existing cookie, required domain scoping, permissions, or response shape. 'Set Cookie' only restates the operation name.

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 text is short, but this is under-specification rather than conciseness — a single sentence that fails to convey any usable information. There is no front-loaded substance to reward.

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?

With three undocumented required parameters, no annotations, and no output schema, the definition is wholly inadequate. Nothing an agent needs to invoke set_cookie correctly — domain scoping, cookie attribute handling, or overwrite behavior — is present.

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% across all three required parameters (name, value, domain), and the description adds no meaning for any of them. The agent gets no format, constraint, or example guidance for name, value, or domain.

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 'Set Cookie (alias)' is essentially a restatement of the tool name with no added specificity. It implies a cookie write, but the parenthetical '(alias)' is undefined and tells the agent nothing about scope or behavior. It does not distinguish this tool from siblings like cookies, get_cookies, or clear_cookies.

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 indication of when to use this tool versus the closely related 'cookies', 'get_cookies', or 'clear_cookies' siblings. No prerequisites, context, or exclusions are given. The '(alias)' fragment is unexplained rather than instructive.

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