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freema

Firefox DevTools MCP

by freema

accept_dialog

Accept browser dialogs such as alerts, confirms, or prompts; optionally provide text for prompt dialogs.

Instructions

Accept browser dialog. Provide promptText for prompts.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
promptTextNoText for prompt dialogs
Behavior2/5

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

No annotations exist, and the description only mentions 'Accept browser dialog' without disclosing side effects (e.g., dialog removal), prerequisites (dialog must be present), or the effect on different dialog types (alert, confirm, prompt).

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two concise sentences with no superfluous information. Every word earns its place, and the structure is front-loaded with the core action.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (one optional parameter, no output schema), the description is minimally adequate. However, it omits context like when a dialog is triggered or how to handle different dialog types, leaving gaps for an agent.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% (baseline 3). The description adds value by noting 'Provide promptText for prompts', clarifying that the parameter is only relevant for prompt dialogs, which goes beyond the schema's generic description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description explicitly states 'Accept browser dialog', which is a clear verb+resource pair. It distinguishes from the sibling 'dismiss_dialog' tool, making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives like 'dismiss_dialog'. The description lacks context for choosing this action over others.

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

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