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

The description provides no behavioral information at all. There are no annotations to fill the gap. It does not mention that this tool creates a post, requires authentication, has side effects, or anything about its execution. An agent has no idea what side effects or requirements exist.

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?

While extremely short, this is under-specification rather than effective conciseness. A single word with no structure does not help the agent. It is not a concise description; it is an incomplete one. The calibration example for 'process' scored 2 for similar reasons.

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 tool with 4 parameters (2 required), no output schema, and no annotations, the description is entirely inadequate. An agent cannot correctly invoke this tool based on this definition. It is missing even basic purpose, usage, and parameter guidance.

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 input schema has 4 parameters (body, role, agent, parent) with zero descriptions and zero schema coverage. The description does not explain any of these parameters, their purpose, or their expected formats. The agent cannot infer what 'role', 'agent', or 'parent' mean without additional context.

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 '发帖' is a direct translation of the tool name 'forum_post' (post to a forum), which is a tautology. It does not specify the action beyond the name itself, and it does not differentiate from siblings like forum_read_posts or forum_search. An agent cannot infer what this tool actually does beyond the name.

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?

No guidance is provided about when to use this tool versus any of the sibling forum tools (e.g., forum_read_posts, forum_search, forum_census). There is no context about typical use cases, prerequisites, or conditions that would favor this tool over others.

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