navigate_history

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

With no annotations provided, the description carries the full burden and delivers: it discloses side effects ('can trigger page loads, redirects, and other navigation events'), documents no-op behavior when history entries are absent, notes that reload bypasses the browser cache, and recommends get_page_info for post-navigation verification. No contradiction with any structured data.

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?

Well-organized with clear sections (Args, Returns, Notes, Tool selection) and front-loaded purpose. Slight redundancy between the opening paragraph and the Tool selection list, but the repetition reinforces routing decisions and every sentence otherwise carries information.

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?

For a single-parameter tool with an output schema, the description covers purpose, per-value semantics, edge behavior, side effects, and sibling routing. Nothing an agent needs to invoke it correctly is missing.

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%, so the description must compensate for the bare enum, and it does: each action value gets a sentence defining its behavior plus its edge-case effect ('Has no useful effect when there is no previous history entry'). The reload semantics (cache-ignoring) are also clarified beyond the enum label.

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 ('Navigate through the current browser history or reload the page') and enumerates the exact operations (back, forward, reload). Explicitly contrasts with the sibling 'navigate', so an agent can distinguish history-relative navigation from arbitrary-URL navigation without opening the schema.

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?

Gives explicit routing rules in a dedicated 'Tool selection' block: arbitrary URL -> navigate; previous/next history entry -> this tool; refresh -> this tool with action='reload'. Also opens with 'Use this tool only for navigation relative to the current browser history', leaving no ambiguity about when it applies.

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