toggle_checkbox

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

With no annotations, the description carries the full burden and does reasonably well: it discloses that a checkbox commits with NO value buffer, the wire only activates EditField, and the server flips the Boolean and fires ПриИзменении. It also warns that there is no ASCII read-back (Boolean reads as Да/Нет) and advises confirming via a side-effect field or capture_screenshot. This is substantive behavioral context. It avoids claiming schema-adjacent things. Minor gap: doesn't mention auth/prerequisites or failure modes.

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 dense and jargon-heavy, mixing protocol hex bytes, Russian identifiers, and nested parentheticals. It is not front-loaded: the most actionable detail (no value buffer) is buried in the second sentence. A reader must parse multiple technical asides to extract the core behavior, and some phrasing is redundant.

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?

An output schema exists, so return values need not be explained (and indeed the wire fields are summarized). The description covers the commit mechanism and read-back caveat, but for a 5-parameter tool with 0% schema coverage, it omits host, port, and full parameter semantics, leaving the definition incomplete for correct 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 0% and there are 5 parameters, so the description must compensate. It only explains two of them: 'capture' (replays the genuine setup, which toggled 'base_field') and 'target_field' (the EditField leaf). It is silent on host, port, and the semantics of base_field beyond the replay reference. Three of five parameters remain undocumented in both schema and description.

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 states a specific verb+resource ('Toggle a Boolean checkbox natively') and distinguishes itself from siblings by identifying itself as 'the EditField twin of switch_page' and contrasting with value-buffering tools. The core purpose (flipping a Boolean field) is clear despite the dense protocol jargon.

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?

No explicit when-to-use or when-not-to-use guidance against alternatives. It references switch_page and capture as related concepts but never states conditions for choosing toggle_checkbox over write_form_value, set_choice, or switch_page. The agent must infer usage from the technical mechanism description.

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