unsubscribe

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

No annotations are provided, so the description must carry the full behavioral burden. It only states that the tool returns 'a success message or an error message', which is vague. No information about side effects, idempotency, permissions required, or behavior on nonexistent subscriptions is disclosed.

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 short (three lines) and structured with Args and Returns sections. However, it sacrifices informative content for brevity, leaving out crucial details about usage and behavior. It is concise but not optimally helpful.

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 simple tool with one parameter and an output schema (implied but not shown), the description omits important context: whether unsubscribing is reversible, what constitutes a success/error message, and if the channel must be actively subscribed. The agent lacks sufficient information to use the tool confidently.

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 schema description coverage is 0%, so the description must compensate. It repeats the parameter name ('channel') and adds 'The Redis channel to unsubscribe from', but this adds minimal meaning beyond the schema field name. No format, constraints, or examples are provided.

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 verb 'unsubscribe' and the resource 'Redis channel', making the purpose obvious. It implicitly distinguishes from the sibling 'subscribe' tool, but does not explicitly mention the inverse relationship, which would strengthen clarity.

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 given on when to use this tool versus alternatives. It does not mention prerequisites (e.g., must be subscribed to the channel) or that it should be paired with 'subscribe'. The agent has no context on appropriate usage scenarios.

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