dataschema compare

Schema Compare

schema_compare

Compares the column schema of two local CSV, JSON, JSONL, or SQLite sources. Returns columns unique to each side, shared columns, and type differences without returning data rows. Use when: checking whether two exports, datasets, or SQLite tables are compatible before migration or transformation. Scope: local filesystem only. Read-only. Not for: comparing row values, moving data, or querying remote databases.

How to use schema_compare

Provide only the required inputs below. Start with the smallest scope that answers the task, then review the risk properties before an agent executes the call.

Risk and execution properties

Read only: yes

Destructive: no

Idempotent: yes

Open world: no — operates locally or through configured services

Inputs

left_pathstringrequired

First local data file or SQLite database.

right_pathstringrequired

Second local data file or SQLite database.

left_tablestring

Required when left_path is SQLite and has more than one table.

right_tablestring

Required when right_path is SQLite and has more than one table.

Example input

{
  "left_path": "<string>",
  "right_path": "<string>",
  "left_table": "<string>",
  "right_table": "<string>"
}

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