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

Annotations declare readOnlyHint=false and destructiveHint=false, so mutation-vs-read is already covered. The description usefully adds the admin-token authorization requirement, but says nothing about whether an existing binding is overwritten, whether the operation is idempotent, or what happens on failure.

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?

Two short sentences with zero filler, and the resource is front-loaded. The unexplained '(as publish)' is the only wasted or confusing token.

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 two-parameter tool with full schema coverage, no nested objects, and no output schema, the description covers purpose and the authorization prerequisite. Only conflict/idempotency behavior for a mutation is left implicit.

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 both 'token' and 'ownerToken' are already documented, including the BREWPAGE_OWNER_TOKEN default. The description's mention of the owner/admin token distinction only restates what the schema says, so the baseline 3 applies.

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: adding an owner token to a BrewPage profile. The parenthetical '(as publish)' is unexplained and slightly muddies the intent, but the core operation is unambiguous.

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 precondition 'Needs an admin token of that profile' signals the required authority and implies this is for binding rather than minting. However, it never distinguishes this from sibling tools like mint_token, which an agent could easily confuse with it.

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