get_timeline_summary

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

No annotations provided; description carries full burden. It implies read-only behavior and lists output fields, but doesn't disclose failure modes (e.g., invalid sequence_id) or performance characteristics. Adequate but not thorough.

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?

Two sentences, front-loaded with action and content list. No redundant information; every word adds value.

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?

With one optional parameter and no output schema, the description covers the tool's purpose and output contents well. Minor gap: could specify return type (string) for clarity, but still sufficient for agent invocation.

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 parameter description included. The tool description adds no additional meaning about the parameter; it relies on schema. Baseline 3 is appropriate.

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?

Description clearly states it provides a 'human-readable summary of the timeline' and enumerates specific elements included (duration, clip count, gaps, etc.). Distinct from siblings like 'get_sequence_structure' or 'get_timeline_gaps' by focusing on a concise overview.

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?

Ends with 'Great for a quick understanding of sequence state,' suggesting appropriate context. However, no explicit guidance on when not to use it or comparison to similar tools like 'get_full_sequence_info'.

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