Edit timeline

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

Annotations indicate readOnlyHint=false and destructiveHint=false. The description adds key behavioral info: versions are immutable and results are saved as new versions. It details all operations, providing more transparency than the annotations alone. Missing details like atomicity or return 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 well-structured: purpose first, then immutability note, then compact operation list, then example. It is concise and front-loaded, using minimal text to convey essential information. Some redundant phrasing could be trimmed, but overall efficient.

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 (multiple nested operations) and no output schema, the description provides operation details and the immutability behavior. However, it does not describe return values (e.g., new version ID) or error handling. This leaves gaps for an agent using the 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?

Input schema has 100% coverage with descriptions for each parameter. The description summarizes the operations and provides an example, which adds slight value beyond the schema. However, the schema already covers the structure and constraints, so the description does not significantly enhance parameter understanding.

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 tool applies structured edits or replaces a timeline version. It lists all supported operations and distinguishes from sibling tools like skycut_get_timeline (read) or skycut_propose_cut (suggestion). The verb 'apply' and resource 'timeline edit' are specific and unambiguous.

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 does not provide explicit guidance on when to use this tool vs alternatives. It explains what the tool does but lacks when-to-use or when-not-to-use context. No sibling differentiation is mentioned.

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