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

Annotations only declare destructiveHint=false, so the description carries most of the behavioral burden. It discloses the side effect of notifying platform operations, the asynchronous approval outcome, that PENDING does not mean the alliance exists, and retry guidance after checking state.

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?

Dense but front-loaded: login requirement and prerequisite state check come first, followed by submission conditions and outcome semantics. Every sentence adds operational value with no filler.

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?

Given this is a mutating application-submission tool with no output schema, the description covers authentication, prerequisites, side effects, approval semantics, and retry behavior. Nothing essential for correct invocation is missing.

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%, so the description must compensate. It adds important meaning for three of four parameters: name, description, and organizationIds as at least two self-owned organizations. It leaves the optional note parameter undocumented, which is a minor gap.

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: submit a pending alliance application ('提交待审申请'). It also distinguishes the tool from the prerequisite state-reader by naming get_my_alliance_application_state, so the agent knows this creates an application rather than reading state.

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?

Explicitly gives preconditions: login required, read get_my_alliance_application_state first, confirm name/description and at least two owned organizations. It also explains the workflow boundary that the alliance is only created after approval, implicitly warning against treating this as direct alliance creation.

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