Webhook.site MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states 'Update webhook settings' which implies a mutation operation, but doesn't clarify permissions needed, whether changes are reversible, rate limits, or what happens to unspecified settings. For a mutation tool with zero annotation coverage, this leaves significant gaps in understanding the tool's behavior.

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. It wastes no words and directly communicates what the tool does without 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?

For a mutation tool with 6 parameters, no annotations, and no output schema, the description is incomplete. It doesn't explain the update behavior (e.g., partial vs. full updates), error conditions, or what the tool returns. Given the complexity and lack of structured data, more contextual information is needed.

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 description lists the updatable fields (response content, status code, timeout, CORS), which aligns with some parameters in the schema. However, with 100% schema description coverage, the schema already documents all 6 parameters thoroughly. The description adds minimal value beyond what's in the schema, meeting the baseline for high coverage.

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 action ('Update') and resource ('webhook settings') with specific fields mentioned (response content, status code, timeout, CORS). It distinguishes from siblings like 'create_webhook' or 'delete_webhook' by focusing on modification rather than creation or deletion. However, it doesn't explicitly differentiate from 'create_webhook_with_config' which might have overlapping functionality.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing an existing webhook), exclusions, or comparisons to siblings like 'create_webhook' or 'get_webhook_info'. The user must infer usage from the tool name alone.

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