timeline

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

No annotations are provided, so the description bears full burden. It discloses one behavioral trait (warpline does not claim lineage) but lacks details on read/write behavior, idempotency, side effects, or permissions. For a tool with 8 parameters and no annotations, more disclosure is needed.

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 concise sentences with no fluff. First sentence defines purpose, second differentiates from sibling. Every word earns its place.

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 8 parameters, no parameter descriptions, no annotations, and reliance on an output schema, the description is incomplete. It does not cover how to use parameters, expected output, or handling of edge cases. A more comprehensive description is warranted.

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%, and the description does not explain any of the 8 parameters. Parameters like 'repo', 'entity_ref', 'filters', 'sort_by', etc., are left undefined, providing no added meaning beyond the schema itself.

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 it provides 'Ordered change history for one entity ref', which is a specific verb-resource combination. It also distinguishes itself from sibling tool 'warpline' by clarifying what warpline reports and what timeline does not claim, aiding sibling differentiation.

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 for getting change history for an entity ref, but does not provide explicit guidance on when to use this tool versus alternatives. The mention of warpline gives some contrast but no clear when-not-to-use or context prerequisites.

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