create_mock_endpoint

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

Discloses key behaviors: auto-creation of a starter rule, live URL format, and PRO/TEAM requirement for custom slugs. No annotations exist, so the description carries the burden well.

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?

Three front-loaded sentences, each concise and informative. No wasted words; structure flows from action to result to special case.

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?

Adequately explains purpose, result (URL), and behavior (starter rule, slug rules). Could mention return format more explicitly, but overall sufficient for a two-parameter tool.

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 coverage is 100% with clear param descriptions. The description adds valuable context: slug can be left empty for auto-generation, and custom slugs require higher subscription tier.

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?

Clearly states 'Create a mock API endpoint' and distinguishes itself from siblings like add_mock_rule by describing the core function: producing a live URL with configurable rules.

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?

Indicates when to use (creating a mock endpoint) and provides context on slug requirements (PRO/TEAM for custom). However, no explicit guidance on when not to use or alternatives among siblings like deploy_mock.

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