Who am I

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

Annotations already declare readOnlyHint and openWorldHint, but the description adds genuine behavioral context beyond them: the failure mode is diagnostic (a failure means the token or FORGEJO_URL is wrong and no other tool will work), which is not derivable from annotations. It stops short of describing response shape or any rate-limit/auth nuance, so it is strong but not exhaustive.

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?

Three sentences, front-loaded with the resource and the diagnostic use case, then routing to siblings. The field enumeration ('among others') is slightly long for the value it adds, but nothing is padding.

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?

No output schema exists, so the description carries the burden of explaining what comes back, and it does so by naming the key fields. Combined with the failure-mode note and sibling routing, an agent has everything needed to call it 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 tool takes zero parameters, so the baseline is 4. The description instead documents the return payload fields, which is useful but is not parameter semantics.

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: reports the account the token belongs to, and enumerates the fields the forge returns (login, full_name, email, is_admin, visibility, created, last_login). It also explicitly differentiates itself from sibling tools version and write_status.

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?

Gives an explicit when-to-use: 'A cheap first call' to prove the token works. It names the alternatives and the condition selecting each ('Use version for the server and forge versions, and write_status for whether writes are possible'), leaving nothing to inference.

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