web_timeline

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

No annotations are provided, so the description carries the full burden. It usefully discloses a session/auth constraint (undo/redo/restore need a dashboard session, implying this read does not) and reads as non-mutating, but says nothing about ordering, pagination behavior, or whether the read affects state.

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 short sentences, the core action front-loaded and the session caveat second. Every clause earns its place with no filler.

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?

No output schema exists, so the description needn't explain return values, and the one optional parameter is covered by the schema. For a simple read tool the description is nearly sufficient, though a hint about what a timeline entry represents would fully close the gap.

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 100% and the single optional limit parameter is fully documented in the schema (default 50, max 100). The description adds no further parameter meaning, so the baseline 3 applies.

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?

States a specific verb and resource: reading the working-copy timeline. It is distinguishable from the mutation siblings (web_set_text, web_remove, web_move) but does not explicitly contrast with the closest sibling, web_checkpoint.

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 note that undo, redo and restore require the dashboard session implies this tool is the read-only timeline access path and that those actions are out of scope here, but it never says when to reach for this vs web_checkpoint or how it relates to the editing tools.

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