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Prompt

Document Extraction Schema Prompt

Designs the schema and validation rules before you build extraction.

1 min readupdated 2026-08-01

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Run first when automating any document intake process. Designs the schema and validation rules before you build extraction.

Designs the schema and validation rules before you build extraction. Run first when automating any document intake process. Copy the prompt below, swap the bracketed variables for your own context, and run it in any capable model. This prompt node is part of the Onexial knowledge graph and links to related concepts, workflows and tools below.
Context
Run first when automating any document intake process.
Prompt
Act as a data engineer designing document extraction. For the document type below, return:

1. SCHEMA — every field with type, required/optional, and normalisation rule (dates, currency, IDs).
2. VALIDATION RULES — arithmetic checks, cross-field consistency, external lookups.
3. AMBIGUITY CASES — the 5 places extraction most often goes wrong for this document type.
4. HUMAN QUEUE CRITERIA — exactly which failures a human must review.
5. TEST SET — 8 document variations to test against, including 3 malformed ones.

Document type: {{DOC_TYPE}}
Downstream system: {{SYSTEM}}
Volume: {{VOLUME}}
Example Output
1. SCHEMA — supplier_name (string, required), vat_id (string, optional, uppercase no spaces), total (decimal, required)...
Related Workflow
Related Tool Stacks
/ frequently asked

What does the Document Extraction Schema Prompt prompt do?

Run first when automating any document intake process.

Which AI models work with this prompt?

It is model-agnostic: it works with any capable general model. Replace the bracketed variables with your own context before running it.

What output should I expect?

1. SCHEMA — supplier_name (string, required), vat_id (string, optional, uppercase no spaces), total (decimal, required)...

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Related concepts

The vocabulary this page depends on.

  • Document Extraction Agent

    A document extraction agent reads unstructured files — PDFs, scans, emails — and returns validated structured data.

  • No-Code Automation

    Building business workflows visually without writing code.

  • Entity Extraction

    Pulling structured entities (people, places, orgs, dates) from text.

  • Research Automation

    Research automation turns a question into a sourced, structured answer using search, retrieval, extraction and synthesis agents.

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Related workflows

Turn this into a repeatable process.

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Related tool stacks

The tools that run it in production.

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Related prompts

Reusable prompts for this job.

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Comparisons & alternatives

Pick between the options.

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