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List inbound PostgreSQL consumer bindings without credentials

postgres_bindings_list
Read-only

List inbound PostgreSQL consumer bindings without exposing credentials to identify which services connect to a cluster and optional namespace.

Instructions

List inbound PostgreSQL consumer bindings without credentials

Input Schema

NameRequiredDescriptionDefault
clusterYes
namespaceNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.4.3

TDQS

C2.3/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The phrase "without credentials" adds real value: returned bindings contain no secrets, so no credential-read permission is implied. Nothing is said about pagination, scope, or what fields a binding actually contains.

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

Conciseness3/5

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

One short sentence, front-loaded and free of padding, but it merely restates the title verbatim rather than using the space to add routing or scoping information.

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?

For a required cluster argument with a strict pattern and an optional namespace, plus no output schema, the definition leaves too much unexplained. It never says what a binding is, whether results are namespace-scoped, or what the response contains.

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

Parameters2/5

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

Schema description coverage is 0% for the two parameters: cluster is only constrained by a regex pattern with no stated meaning, and the required/optional relationship of namespace is unstated in prose. The description adds no meaning beyond the schema, leaving the agent to guess at cluster naming and whether namespace narrows the listing.

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

Purpose2/5

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

Tautological: description restates name/title.

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 when-to-use guidance, no prerequisites, and no mention of alternatives or when not to use it. The agent must infer the scenario from the name alone.

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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