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BrowserGenie

BrowserGenie MCP Server

by BrowserGenie

assert_no_network_errors

Verify no failed network requests exist on the active tab. Reports failed count, request details, and overall result.

Instructions

Assert that there are no failed network requests (4xx, 5xx, or failed) for the tab. Returns failed count, list of failed requests, and pass/fail.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
clearNoClear network logs after checking
tabIdNoTarget tab ID (defaults to currently active tab)
apiKeyNoAPI key for authentication if enabled
Behavior3/5

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

The description discloses that the tool checks network errors and returns a count, list, and pass/fail. However, it does not explain side effects (e.g., optionally clearing logs via the clear parameter) or prerequisites like authentication (apiKey parameter). With no annotations, more detail would be beneficial.

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?

Single sentence covers purpose and outputs with no fluff. Every phrase is essential and front-loaded.

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

Completeness4/5

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

For a simple assertion tool, the description adequately explains return values (count, list, pass/fail) and mentions the tab scope. Missing details on side effects of clear and authentication, but overall sufficient given the tool's simplicity.

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?

Input schema has 100% coverage, so description adds no extra meaning beyond what each parameter already defines. Baseline 3 is appropriate since schema already handles semantics.

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 failed network requests (4xx, 5xx, or failed) and returns specific outputs. It uses a specific verb-resource pair, distinguishing it from sibling tools like get_network_errors which only retrieves errors.

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 explicit guidance on when to use this tool versus alternatives like get_network_errors or clear_network_logs. The name implies it is for assertions in tests, but no when-not-to-use or alternative conditions are mentioned.

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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