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

With no annotations, the description carries the full burden. It does disclose a meaningful behavioral trait – the confirmation requirement – which is not derivable from the schema. But it omits reversibility, permission/auth requirements, and side effects beyond the name change, leaving significant gaps for a mutation tool.

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 purpose sentence is front-loaded, but it is repeated verbatim at the top, and the body is raw JSDoc-style @param/@return text that leaks into the description. Functionally readable but structurally noisy.

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 5-required-param mutation tool with no annotations and no output schema, the description covers parameters adequately but under-specifies safety: no auth failure behavior, no note on whether the rename is reversible, and only a minimal '@return: a json object'.

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 coverage is 0%, so the description must compensate, and it does: all five params are documented, including where external_account_id is found (/bridge/list) and what alias means. Minor value loss because some entries (api_key, alias) are self-evident, but coverage is complete.

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+resource: 'Changes the Bridge's descriptive name.' This distinguishes it well from siblings like bridge_delete or bridge_list. However, it makes no explicit sibling differentiation or scope statement beyond the verb itself.

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 only usage instruction is 'Confirm (yes/no) before executing', which is an invocation guard but not when-to-use guidance. There is no indication of when to prefer rename over related bridge tools, nor any prerequisite context.

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