AppsSynthetic Data

Quality and variety · Autessa Synthetic Data

Validation and automatic repair

Autessa Synthetic Data validates every generated row against your column types. It converts values where that is safe, gives invalid rows one repair round, tops up a short batch, and drops anything that still does not fit, so only rows that match your columns are staged or written.

A core synthetic data capability, done properly
Start free
One batch, start to finishSAMPLE
  1. 1Generated52 candidate rows from one model call
  2. 2Coerced"42" → 42 · "yes" → true · "urgent" → Urgent
  3. 3Repair round3 invalid rows sent back once with their errors
  4. 4Top-up2 rows short, so one extra call fills the gap
  5. 5Accepted50 valid rows staged or written
  6. 6DroppedStill invalid after repair, so rejected

The problem

Language models make plausible mistakes

A model asked for an integer might write "42 seats", invent a status your app does not accept, or skip a required field. If those rows reach a table, the demo breaks or the test fails for the wrong reason.

What you get

  • Safe conversions: numeric strings to numbers, "yes" and "true" to booleans, select values matched regardless of case.
  • Strict where data would be wrong: empty required fields, out-of-range numbers and unknown select values are rejected.
  • Over-length text is trimmed to the limit rather than rejected.
  • One repair round sends invalid rows back with their errors; one top-up call fills a shortfall.
  • Each batch reports how many rows were rejected.
  • Media columns are never generated and always skipped.

How it works

How does validation and automatic repair work?

  1. Generate

    One model call produces a batch of candidate rows sized to your columns.

  2. Check and convert

    Each row is checked against the frozen column list and safely converted where possible.

  3. Repair

    Rows that fail are sent back once with what was wrong.

  4. Top up

    If the batch is still short, one extra call asks for the missing rows.

  5. Accept or drop

    Valid, unique rows are staged or written; the rest are counted as rejected.

Every option

What is checked

OptionWhat it does
TypesEvery value must match its column type.
RequiredRequired columns must have a value.
Number rangesMinimum and maximum values from the table schema.
Text lengthMinimum length is enforced; text over the maximum is trimmed.
Allowed valuesSingle and multi select values must be in the allowed list (case-insensitive match).
Repair budgetUp to two extra calls per batch: one repair, one top-up.

Permissions

Who can do what?

WhoCan
People in your companyCreate datasets, see the company list of jobs, open any job and review, approve, append, cancel or discard it.

Where AI does the work

How the generator handles this

Repair is a second model call that receives the invalid rows together with the specific errors, which fixes most problems without regenerating the whole batch.

Generation runs on your company default model, and every row is checked against your columns before it is staged or written.

Your model and PII stripping →

Connected

How validation and automatic repair connects to the rest of Autessa

FAQ

Questions about validation and automatic repair

What happens to rows that still fail after repair?

They are dropped and counted as rejected on the batch. If too many batches in a row produce no valid rows, the job stops with the rows it has and explains why.

Does validation slow generation down?

Barely. Checks run locally on each row; only invalid rows trigger an extra model call.

Can a job end with fewer rows than I asked for?

Yes, as "Partially completed", with the reason listed. Append more rows to make up the difference.

Try validation and automatic repair in Autessa Synthetic Data

Autessa Synthetic Data validates every row against your column types, repairs invalid rows once, tops up shortfalls and drops what still does not fit.

Start free

Describe it · review it · write it · or download JSONL and CSV

100% customizable, code and all

Make Autessa Synthetic Data fully your own.

Use it out of the box, then change anything. Ask Autobot, Autessa’s AI builder, for a new field, screen, report, workflow or agent and it builds it into your copy of the app. Or open the code and edit it yourself. Nothing is locked: the app, its data and its code are yours.

Start free and make it yours