Confirm permission first
Use messages you wrote, messages you are authorized to process, or material covered by explicit permission. A conversation belongs to more than one participant in practical privacy terms, even when one person exported the file.
Remove what the persona does not need
Exclude passwords, financial details, addresses, health information, intimate material, workplace secrets, and unrelated third-party conversations. More data is not automatically better character quality.
Extract patterns and memories separately
Speaking style should become editable personality instructions. Events and facts should become reviewable memories with source references. Keeping them separate makes correction and deletion possible.
Test for leakage and invention
Ask questions that the imported messages do and do not answer. The persona should identify uncertainty instead of filling gaps with convincing fiction, and it should not reveal private details outside the intended context.
Create a persona from permitted material. Continue in ExChat's mobile-first creation flow.
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