Skip to main content
Glama
ConnorBritain

MSSQL MCP Reader

profile_table

Analyze column statistics, data distributions, and sample records by profiling a table. Obtain cardinality, null counts, and top value frequencies.

Instructions

Profiles a table by analyzing column statistics, data distributions, and sample records. Returns metadata, cardinality info, null counts, and representative samples for each column.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tableNameYesName of table to profile (schema.table or table)
schemaNameNoExplicit schema (defaults to 'dbo')
sampleSizeNoNumber of sample rows (default 100, max 1000)
includeSamplesNoReturn sampled rows used for profiling (default false)
includeDistributionsNoInclude top value frequencies (default true)
topValuesLimitNoMax distinct values per column (default 10, max 50)
columnsToProfileNoSpecific columns to profile (default: all)
environmentNoOptional environment name to target.
Behavior3/5

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

No annotations are provided, so the description carries full burden. It describes outputs (metadata, cardinality, null counts, samples) but does not explicitly state whether the tool is read-only or has any side effects. The profiling nature suggests no modification, but this is implicit.

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 sentences front-load the purpose and list key outputs. No wasted words; every sentence adds value.

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

Completeness4/5

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

With no output schema, the description adequately describes return values (metadata, cardinality, samples). However, it lacks information on error behavior, performance implications, or effects on the database. Overall, fairly complete for a profiling tool.

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 description coverage is 100%, so baseline is 3. The description does not add extra meaning beyond the schema's parameter descriptions; it only gives a high-level overview.

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?

The description clearly states it profiles a table by analyzing column statistics, distributions, and sample records, and returns specific metadata. This distinguishes it from siblings like 'describe_table' which likely only returns schema structure.

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 usage when column-level statistics are needed, but does not explicitly state when to use this tool versus alternatives (e.g., describe_table for schema-only). No exclusions or when-not guidance provided.

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/ConnorBritain/mssql-mcp-reader'

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