wechat_activate

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool activates something, implying a write/mutation operation, but doesn't describe what activation entails (e.g., whether it's reversible, if it requires specific permissions, or what happens on failure). The mention of using an environment variable as a fallback adds some context, but overall, key behavioral traits like side effects or error handling are missing.

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 description is extremely concise and front-loaded: it states the purpose in the first part and parameter details in the second, with no wasted words. Every sentence earns its place by providing essential information without redundancy.

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 the tool has no annotations, no output schema, and low schema coverage, the description is minimally adequate. It covers the purpose and parameter semantics but lacks details on usage context, behavioral traits, and expected outcomes. For an activation tool with potential side effects, more completeness would be beneficial, but it meets a basic threshold.

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 description adds meaningful semantics for the single parameter: it explains that 'license_key' is an activation key and specifies that leaving it empty uses the environment variable WECHAT_LICENSE_KEY. With 0% schema description coverage (the schema only defines the parameter type and default), this compensates well by clarifying the parameter's purpose and fallback behavior, though it doesn't detail format or validation rules.

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 clearly states the tool's purpose: '激活 wxautox4' (activate wxautox4). It specifies the verb ('激活' - activate) and the target resource ('wxautox4'), making the action explicit. However, it doesn't differentiate from sibling tools like 'wechat_check_activation' or 'wechat_initialize', which might have related but distinct purposes.

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 description provides no guidance on when to use this tool versus alternatives. It mentions a parameter for license key but doesn't explain prerequisites, such as whether initialization is required first, or when activation is needed relative to other tools like 'wechat_check_activation'. There's no explicit when-to-use or when-not-to-use context.

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