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@takeokunn/metabase-mcp

@takeokunn/metabase-mcp

by takeokunn
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

get_basic_tile

Retrieve a basic map tile by providing zoom level and tile X-Y coordinates from Metabase.

Instructions

Get a basic map tile by zoom level and coordinates in Metabase

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": {
      "input": "<input>"
    },
    "name": "get_basic_tile"
  }
}

Input Schema

NameRequiredDescriptionDefault
inputYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.2.0

TDQS

B3.2/5.0
Behavior2/5

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

No annotations provided, and description does not disclose any behavioral traits such as permissions, performance implications, or side effects. Only states what the tool does.

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?

The description is a single sentence, concise and front-loaded. It could benefit from slightly more structure, but it is efficient.

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?

The description is adequate for a simple tile retrieval, but it does not specify the output format (e.g., image data). Given no output schema, the agent might need more context on what the return value represents.

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?

The input schema provides descriptions for all three parameters (x, y, zoom), so the schema already covers semantics. The description adds minimal value by summarizing 'by zoom level and coordinates', but it does not explain coordinate system or constraints.

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 'Get', the resource 'basic map tile', and the inputs 'zoom level and coordinates'. It distinguishes from sibling tools like get_card_tile or get_dashboard_tile by specifying 'basic'.

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 this tool versus alternatives like get_card_tile or get_dashboard_tile. No mention of prerequisites or context.

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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