start-activity-log

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

Annotations already disclose this is a non-read-only, non-destructive, closed-world mutation, so the agent knows the safety profile. The description adds nothing beyond that: it doesn't say whether starting is idempotent, whether a log can be started twice, whether it creates a timer, or what the caller gets back. A single short sentence for a state-changing operation leaves clear 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?

One front-loaded sentence with no wasted words, so it is structurally clean. However, the brevity comes at the cost of almost all useful content, making it under-specified rather than genuinely concise.

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?

This is a state-mutating tool with no output schema and only minimal annotations, so the description should explain the effect and lifecycle of starting a log. Instead it supplies only the verb and resource, leaving the agent to infer everything else from the schema and sibling names.

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% and the single parameter already carries a detailed description tying it to get-activity-item-list, so the schema does the heavy lifting. The tool description adds no additional meaning about the parameter, which is the baseline 3 for fully-documented schemas.

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 sentence "Starts an activity log" is essentially the tool name reworded with no additional specificity. It does not distinguish this from complete-activity-log or get-activity-log-list beyond the verb, and it never says what starting a log actually accomplishes.

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 gives no when-to-use guidance at all. The only prerequisite (a valid activityItemName from get-activity-item-list) lives in the parameter schema, not the description, and there is no mention of when to prefer this over the related log tools.

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