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List saved pairings

list_relationships
Read-onlyIdempotent

List compatibility pairings the user has already saved, with each pair's score and the context it was scored in. Use to recall earlier comparisons without re-scoring. Read-only; costs 1 unit.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMaximum rows to return (1-100, default 25).
contextNoOptional filter: only pairings scored in this context.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
relationshipsNoSaved pairings with their context.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$schema": "http://json-schema.org/draft-07/schema#",
      +  "additionalProperties": false,
      +  "properties": {
      +    "relationships": {
      +      "description": "Saved pairings with their context.",
      +      "items": {
      +        "additionalProperties": {},
      +        "type": "object"
      +      },
      +      "type": "array"
      +    }
      +  },
      +  "type": "object"
      +}
  2. Changed7 schema fields changed
    • addedInput schema / properties / context / description
      Added value: +"Optional filter: only pairings scored in this context."
    • addedInput schema / properties / context / enum
      Added value: +[
      +  "business",
      +  "romantic",
      +  "friendship",
      +  "coparenting"
      +]
    • addedInput schema / properties / limit / default
      Added value: +25
    • addedInput schema / properties / limit / description
      Added value: +"Maximum rows to return (1-100, default 25)."
    • addedInput schema / properties / limit / maximum
      Added value: +100
    • addedInput schema / properties / limit / minimum
      Added value: +1
    • changedInput schema / properties / limit / type
      Previous value: -"number"New value: +"integer"
  3. First observed

TDQS

A4.1/5.0
Behavior4/5

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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so safety is covered. The description adds genuinely new operational context the annotations cannot express: the call costs 1 unit. It doesn't discuss pagination, but the cost disclosure plus the returned-fields hint ('score and the context') is real added value.

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?

Three tight sentences with no filler: purpose first, then the usage trigger, then the cost/safety note. Every sentence earns its place and nothing is buried.

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

Completeness5/5

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

An output schema exists, so return values need not be enumerated, yet the description still signals what comes back (scores and scoring context). For a zero-required-param read tool, purpose, usage, cost, and output shape are all covered.

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 both parameters fully described, including the enum values for context, so the baseline is 3. The description's mention of 'the context it was scored in' loosely aligns with the context filter but adds no format, default, or bounds detail beyond the schema.

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?

States a specific verb (List) and resource (saved compatibility pairings) and clarifies the payload: each pair's score plus the scoring context. It implicitly distinguishes itself from re-scoring, though it never names the sibling score_compatibility explicitly.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

'Use to recall earlier comparisons without re-scoring' gives a clear situational trigger for selecting this over a fresh scoring call. It stops short of naming the alternative tool or stating exclusions, but the when-to-use is unambiguous.

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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