MCP AbuseIPDB Server

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the service (AbuseIPDB) and batch capability, but doesn't disclose rate limits, authentication requirements, what constitutes a 'check' (e.g., reputation scoring, blacklist lookup), error handling, or response format. For a tool with 3 parameters and no annotations, this leaves significant behavioral gaps.

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 a single, efficient sentence that front-loads the core purpose ('Check multiple IP addresses in batch against AbuseIPDB'). Every word earns its place with no redundancy or unnecessary elaboration.

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 3 parameters, no annotations, and no output schema, the description is incomplete. It doesn't explain what the tool returns (e.g., confidence scores, report details), error conditions, or behavioral constraints like rate limits. For a batch operation with external service integration, more context is needed for effective agent use.

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?

Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description doesn't add any parameter-specific semantics beyond what's in the schema (e.g., it doesn't explain how threshold interacts with AbuseIPDB's scoring system). Baseline 3 is appropriate when schema does the heavy lifting.

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 specific action ('check multiple IP addresses in batch') and the target resource ('against AbuseIPDB'), distinguishing it from sibling tools like 'check_ip' (likely single IP) and 'check_block' (likely IP block). It explicitly mentions the batch capability which differentiates it from single-item alternatives.

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 implies usage for batch checking IPs against AbuseIPDB, but doesn't explicitly state when to use this versus alternatives like 'check_ip' or 'check_block'. It provides context about the service (AbuseIPDB) but lacks explicit guidance on use cases, prerequisites, or exclusions.

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