Qwen Code session format

Store and files

Qwen Code writes sessions below ${DEJA_QWEN_ROOT:-~/.qwen}/projects/<encoded-project>/chats/*.jsonl. The project directory uses the same slash-and-hyphen encoding as Claude Code. The chats/ directory is part of Qwen's layout; only JSONL files directly inside it are session streams.

The Qwen configuration directory remains ~/.qwen for installer settings. DEJA_QWEN_ROOT relocates session reads only.

Records

Each line is a JSON object with type, sessionId, timestamp, and a message object. Message text is in message.parts; parts marked thought: true are reasoning and are excluded.

{"type":"assistant","sessionId":"session-7","timestamp":"2026-07-17T09:00:01Z","message":{"role":"model","parts":[{"text":"The failing check is in parser.go."}]}}

message.role model maps to assistant and user maps to user; when it is absent, the top-level type is used. Parts with text are joined with newlines. RFC 3339 and numeric Unix timestamps are accepted.

Resume

qwen -r <id> reopens a session by id, and the id is the chat file's name —

the same one deja indexes. The command has to run in the project directory:

qwen sessions list shows only the current project's sessions, so from

anywhere else the id resolves to nothing. deja recovers that directory from the

encoded path and prints cd <project> && qwen -r <id>.

Known quirks and drift

• JSONL can end in a partial line while Qwen is writing. Malformed lines are skipped.
• System, tool-result, and other control records do not become messages.
• Project path encoding is ambiguous because - represents both a separator and a hyphen. deja checks the local filesystem before using a two-segment fallback.

Last verified: 2026-07-17

deja reads this format and nineteen others, and turns what it finds into memory your agents can search. See the harness matrix for what is wired where, or install it and search your own history.