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Browser Agent MCP

Browser Agent MCP

by imprvhub
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

api_put

Update resources by sending a PUT request to any API endpoint with JSON payload and custom headers.

Instructions

Perform a PUT request to an API endpoint

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "url": "<url>",
      "data": "<data>"
    },
    "name": "api_put"
  }
}

Input Schema

NameRequiredDescriptionDefault
urlYesAPI endpoint URL
dataYesRequest body data (JSON string)
headersNoRequest headers

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
Behavior2/5

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

No annotations provided; description only states 'PUT request' implying mutation, but omits critical details like idempotency, side effects, authentication needs, or error behavior.

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

Conciseness4/5

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

Single sentence is concise and front-loaded, but does not add meaningful content beyond the tool name; minimal but not wasteful.

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

Completeness2/5

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

No output schema and no behavioral details; for a tool with 3 parameters and nested objects, the description is insufficient to fully understand usage and 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 covers all 3 parameters with descriptions; description adds no extra meaning beyond what schema already provides, meeting the baseline for high coverage.

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

Purpose4/5

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

Clearly states the action ('Perform a PUT request') and resource ('API endpoint'), but lacks differentiation from sibling tools like api_patch or api_post, which perform similar HTTP methods.

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 on when to use PUT versus other HTTP methods (e.g., PATCH for partial updates, POST for creation). Does not mention idempotency or replacement semantics.

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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