cronometer-mcp

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 the tool creates a new template, implying a write operation, but doesn't mention permissions, side effects, error conditions, or what the output contains. For a mutation tool with zero annotation coverage, this is a significant gap in transparency.

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 well-structured with a clear purpose statement followed by a parameter breakdown. Every sentence adds value, and it's appropriately sized for the tool's complexity. Minor room for improvement in flow, but overall efficient and front-loaded.

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 (mutation with 6 parameters), no annotations, but an output schema exists, the description is moderately complete. It covers parameters well but lacks behavioral context (e.g., permissions, errors). The output schema likely handles return values, so that gap is acceptable, but more operational details would enhance completeness.

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 0%, so the description fully compensates by providing clear semantics for all 6 parameters. It explains each parameter's purpose (e.g., 'Protein target in grams'), includes examples ('Retatrutide GI-Optimized'), and clarifies the optional 'assign_to_all_days' behavior, adding substantial value beyond the bare schema.

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 ('Create a new saved macro target template') and resource ('in Cronometer'), distinguishing it from siblings like 'set_macro_targets' or 'list_macro_templates'. It precisely identifies what the tool does without being tautological.

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 context by mentioning 'Optionally assigns it to all days of the week as the recurring default', which suggests when to use the optional parameter. However, it lacks explicit guidance on when to choose this tool over alternatives like 'set_macro_targets' or 'set_weekly_macro_schedule', leaving some ambiguity.

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