Skip to main content
Glama
urjeetpatel

db-tools-mcp

by urjeetpatel

suggest_joins

Find join paths between two database tables using foreign key relationships and heuristic column matching, with results ranked by confidence.

Instructions

Suggest join paths between two tables using FK graph + heuristic column matching. Results ordered by descending confidence. Table names as 'schema.table'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sourceYes
table_aYes
table_bYes
max_hopsNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

Discloses use of FK graph and heuristic matching, and ordering by confidence, which are behavioral traits. However, no annotations exist, so the description should cover more (e.g., behavior on no results, prerequisites). The existing context is useful but not exhaustive.

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?

Two concise sentences, front-loaded with action, no fluff. Every sentence adds value.

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?

Adequate for a suggestion tool with an output schema, but lacks parameter details and behavioral completeness given 0% schema coverage and no annotations.

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%, but the description only mentions table name format, not explaining 'source', 'max_hops', or parameter purposes. This provides minimal added meaning beyond parameter names.

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?

Description clearly states the tool suggests join paths using FK graph and heuristic column matching, with results ordered by descending confidence and table names format. This distinguishes it from similar siblings like 'find_direct_joins' by specifying broader methodology.

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

Usage Guidelines3/5

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

The description implies use when needing join path suggestions between two tables, but does not explicitly contrast with alternatives like 'find_direct_joins' or provide when-not-to-use guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/urjeetpatel/db-tools-mcp'

If you have feedback or need assistance with the MCP directory API, please join our Discord server