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by com.threewayly
OverviewDiscussionsAdmin

Look a row up by an exact key

dataset_row

The rows of the Threewayly dataset where a column equals a value exactly (case-insensitive).

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": {
      "column": "<column>",
      "value": "<value>"
    },
    "name": "dataset_row"
  }
}

Input Schema

NameRequiredDescriptionDefault
valueYes
columnYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

B3.3/5.0
Behavior3/5

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

The description discloses matching behavior (exact, case-insensitive equality) and implies a read-only lookup, but it does not mention result cardinality, ordering, error behavior, or handling of missing columns or values.

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?

One sentence, directly to the point, with no redundant wording.

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 two-parameter lookup, the description gives the core semantics, but it lacks return-shape or edge-case details. The absence of an output schema makes this acceptable but not fully comprehensive.

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 description only indirectly defines the parameters: 'column' is the field to match and 'value' is the exact comparison value. There are no per-parameter descriptions, types, or constraints beyond the schema's minLength.

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 tool returns rows where a specified column matches a value exactly, case-insensitively, and the title reinforces 'exact key'. It is distinguishable from a generic search, though it does not explicitly compare itself to sibling tools.

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 is given for when to choose this tool over sibling tools such as dataset_search. The exact-match language is a hint, but it does not state use cases or alternatives.

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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