Skip to main content
Glama
songofhawk

playwright-mcp-tabbed

by songofhawk

browser_navigate_back

Navigate back to the previous page in browser history. Use tab ID or index to go back in a specific tab during parallel operations.

Instructions

Navigate back in history.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tab_idNoStable tab id from browser_tabs list; preferred when multiple agents run in parallel. Mutually exclusive with tab_index.
tab_indexNoTab index from browser_tabs list. If omitted, uses the lowest-index tab. Mutually exclusive with tab_id.
Behavior2/5

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

No annotations are provided, and the description lacks details about what happens if there is no history, potential side effects, or error conditions.

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 sentence with no wasted words, conveying the core purpose efficiently.

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?

For a simple navigation action, the description is minimally adequate, but it omits behavioral details like handling empty history or return values.

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?

Schema coverage is 100% with detailed descriptions for both parameters, including mutual exclusivity. The description adds no additional meaning 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 verb 'navigate' and the resource 'back in history', distinguishing it from siblings like browser_navigate which goes to a specific URL.

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?

No explicit guidance on when to use this vs alternatives, but the purpose is straightforward; usage is implied by the tool's name and description.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/songofhawk/playwright-mcp-tabbed'

If you have feedback or need assistance with the MCP directory API, please join our Discord server