Skip to main content
Glama

Coda Get Column

coda_get_column
Read-onlyIdempotent

Retrieve metadata for a single Coda table column, including name, ID, type, format, and configuration, to verify its type before writing data.

Instructions

Get metadata for a single column in a Coda table.

Returns the column's name, ID, type, format, and configuration details. Use this to check a specific column's type before writing data to it. For the full column schema, use coda_list_columns instead.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
doc_idYesThe doc ID containing the table
table_id_or_nameYesTable ID or name
column_id_or_nameYesColumn ID or name

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.4.14

TDQS

A4.2/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the safety profile of this read operation is fully covered. The description adds that the return includes name, ID, type, format and configuration, but that overlaps with the existing output schema, so incremental behavioral value is modest.

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 short sentences, front-loaded with the core action, followed by return contents and the routing hint. Every sentence earns its place with no filler.

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?

For a simple 3-param read tool with an output schema and full annotation coverage, the description supplies everything needed to call it correctly. Minor gap: no note on auth or rate limits, but nothing an agent strictly needs is missing.

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 all three parameters (doc_id, table_id_or_name, column_id_or_name) are already documented in the schema. The description adds no syntax or format guidance beyond that, so the baseline 3 applies.

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?

States a specific verb+resource ('Get metadata for a single column in a Coda table') and immediately distinguishes itself from the sibling coda_list_columns by naming that alternative. An agent can tell it apart from the list variant without opening the schema.

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

Usage Guidelines5/5

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

Provides explicit when-to-use guidance ('check a specific column's type before writing data to it') and names the alternative for the other case ('For the full column schema, use coda_list_columns instead'). Both the selection condition and the alternative are supplied.

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