chat-rosetta

Small CLI to convert a single chat session between Google AI Studio JSON and Open WebUI export JSON.

Build

• Requires ghc and cabal on PATH.
• Build: cabal build

Usage

• AI Studio -> Open WebUI (single session array): cabal run chat-rosetta -- aistudio-to-openwebui --in /path/to/aistudio.json --out /path/to/openwebui.json [--title "Optional Title"]

• Open WebUI -> AI Studio: cabal run chat-rosetta -- openwebui-to-aistudio --in /path/to/chat-export.json --out /path/to/aistudio.json

Notes

• One session at a time:
  • Open WebUI inputs must contain exactly one session in the top-level array; the tool errors otherwise.
  • AI Studio inputs are single-conversation JSON files.
• No pretty-printing: outputs are compact JSON using Aeson encode.
• Messages only: discards all thinking/thought content and historical versions. Preserves the system prompt.
• Open WebUI export fills both chat.history (canonical) and chat.messages with the current linear chain. IDs and timestamps are generated if missing.
• AI Studio export includes minimal runSettings, using model inferred from source if available.