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takeokunn

@takeokunn/metabase-mcp

by takeokunn

rescan_database_values

Trigger a rescan of field values for a database to refresh metadata and improve query suggestions in Metabase.

Instructions

Rescan field values for a database in Metabase

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
inputYes
Behavior2/5

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

No annotations are provided, so the description carries full responsibility. It does not disclose that rescanning is a write operation, its side effects (e.g., cache update, sync trigger), or any required permissions. Minimal behavioral context.

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

Conciseness2/5

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

The description is a single short sentence, but it under-specifies the tool's behavior. It is not appropriately sized for a tool with no annotations and zero schema coverage, missing key information.

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

Completeness1/5

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

Given the lack of annotations, output schema, and low schema coverage, the description is severely incomplete. It does not explain the effect, prerequisites, response, or relation to sibling tools.

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

Parameters1/5

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

Input schema coverage is 0%, and the description adds no meaning beyond the schema's 'Database ID' label. The sole parameter 'input' with nested 'id' is not elaborated. Essential parameter context is missing.

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?

The description clearly states the action (Rescan field values) and the target (a database in Metabase). It is specific enough to distinguish from the sibling tool 'rescan_field_values', which targets a field, but does not explicitly differentiate.

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 is provided on when to use this tool versus alternatives like 'rescan_field_values' or 'discard_database_values'. The description lacks context for appropriate usage.

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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