cronalert-mcp

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

Annotations indicate destructiveHint=true (mutation) and readOnlyHint=false, which the description aligns with by using 'Update'. The description adds context about what gets modified ('configuration') and examples of fields (name, URL, interval, method), providing useful behavioral details beyond annotations, though it doesn't cover rate limits or auth needs.

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 action ('Update an existing monitor's configuration') and includes relevant examples without unnecessary details. Every word earns its place, making it highly concise and well-structured.

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 the tool's complexity (7 parameters, destructive operation) and lack of output schema, the description is adequate but incomplete. It covers the action and examples of configurable fields, but doesn't address return values, error conditions, or dependencies on other tools, leaving gaps for an AI agent.

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 parameters are well-documented in the schema. The description lists example fields (name, URL, interval, method, etc.), which adds marginal semantic context but doesn't provide additional meaning beyond what the schema already specifies for each parameter.

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 ('Update') and resource ('existing monitor's configuration'), making the purpose evident. It distinguishes from siblings like 'create_monitor' by specifying 'existing', but doesn't explicitly differentiate from other update-related tools (though none are listed).

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 provided on when to use this tool versus alternatives. While it implies usage for modifying monitors, there's no mention of prerequisites (e.g., needing monitor ID), exclusions, or comparisons to siblings like 'get_monitor' for checking current configuration.

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