freebuff_stop

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

With no annotations, the description must carry behavioral disclosure. It does communicate a useful trait: the operation only acts on an existing running session ('if any'), implying a no-op when none is active. However, it does not mention side effects or whether cancellation is immediate, graceful, or irreversible.

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?

A single sentence, front-loaded with the action ('Cancel') and the target ('currently running Freebuff agent session'), with no filler. Every word contributes to selection and invocation.

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 no-argument, single-purpose stop tool without an output schema, the description is nearly complete. The only minor gap is the lack of an explicit note about the destructive/irreversible nature of cancellation, though 'Cancel' largely conveys this.

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 has zero parameters, so the baseline is 4; there is no parameter ambiguity for the agent. The empty input schema already represents this completely, and the description has nothing more it needs to add.

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 uses a specific verb ('Cancel') and a specific resource ('currently running Freebuff agent session'), and the qualifier 'currently running' clearly scopes the action. This semantically distinguishes it from siblings like freebuff_sessions and freebuff_delete without ambiguity.

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 usage context is only implied: call this when a Freebuff agent session is running and should be cancelled. It does not explicitly say when not to use it or contrast it with freebuff_delete/freebuff_sessions, so the agent must infer the routing.

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