tool_clear_csdn_session

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

With no annotations, the description carries the full burden. It correctly signals a destructive delete and explains the downstream effect (fresh login required) and the return shape, but says nothing about irreversibility, whether credentials are stored elsewhere, or any auth prerequisite.

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?

Two short lines, front-loaded with the action and its effect. The Returns note earns its place because no output schema exists to document the response.

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 zero-parameter, no-annotation utility, the description covers what it does, the side effect, and the return value. It falls short only on the safety/irreversibility detail that no annotation supplies.

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 there is nothing to disambiguate; the baseline of 4 applies. The description correctly adds no misleading parameter language.

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 (Delete) and resource (the saved CSDN session), plus the operational consequence (forces a fresh login next time). It is clearly distinguishable from siblings like tool_csdn_login and tool_check_csdn_login, though it does not name them explicitly.

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?

Usage is implied by the parenthetical consequence — an agent can infer this is for resetting a stale or broken session. There is no explicit when-to-use guidance or comparison against tool_check_csdn_login / tool_csdn_login for diagnosing login problems.

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