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BrowserGenie

BrowserGenie MCP Server

by BrowserGenie

assert_no_console_errors

Check for console errors in a browser tab. Returns pass/fail status with error count and list of errors to ensure clean console output.

Instructions

Assert that there are no console errors (or specified level entries) for the tab. Returns error count, list of errors, and pass/fail.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
levelNoConsole level to checkerror
clearNoClear logs after checking
tabIdNoTarget tab ID (defaults to currently active tab)
apiKeyNoAPI key for authentication if enabled
Behavior2/5

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

No annotations provided. The description does not clarify whether the tool waits for logs or checks current state, nor what happens on failure (e.g., throws an error). Key behavioral details missing.

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 a single clear sentence with no unnecessary words. Well-structured and front-loaded.

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?

No output schema, but description mentions return fields. However, it omits important context for an assertion tool, such as whether it waits or how it handles failures. Adequate but incomplete.

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

Parameters3/5

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

All 4 parameters are fully described in the schema (coverage 100%). The description adds context about return values but does not significantly enhance parameter understanding beyond the schema.

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 clearly states the tool asserts no console errors for a tab, specifies it returns error count, list, and pass/fail, and distinguishes from siblings like get_console_logs.

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

Usage Guidelines3/5

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

The description mentions filtering by level but lacks explicit guidance on when to use this tool versus get_console_logs or monitor_console_events. No alternatives or exclusions stated.

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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