Preserve previous permission mode when resuming an archived session

[webwww123]

Summary

When a session is archived and later resumed, HAPI does not preserve the previous permission mode.

A common example is YOLO mode:

1. Switch the session to YOLO
2. Archive / pause the session
3. Resume it later by sending a new message
4. The resumed session runs in default again instead of the previous permission mode

Why this is painful

If the user expects the previous mode to continue, the model starts running with the wrong permission mode immediately. Then the user has to:

• stop the agent
• change the permission mode again
• resend / continue

That wastes time and tokens.

Expected behavior

HAPI should remember the last active permission mode for the session and restore it automatically when resuming the archived session.

That should apply both to:

• mode changes made during the session
• sessions originally started in YOLO mode

Notes

From the current behavior, the permission mode appears to be kept only in live session state, not persisted as resume-time preference.

[github-actions]

Confirmed from the current code: archived-session resume does not preserve the previous permission mode.

The current flow keeps permissionMode only on the live Session object. It is updated from keepalive events and set-session-config, but it is not part of the stored session schema in SQLite. On resume, the hub only forwards the resume token/path and passes undefined for the spawn-time mode fields, so the new agent process starts without the previous mode and the runner code falls back to default.

Relevant code:

• hub/src/sync/sessionCache.ts:129 - refreshSession() rebuilds Session.permissionMode from existing?.permissionMode, not from stored session data.
• hub/src/sync/sessionCache.ts:168 - handleSessionAlive() updates session.permissionMode only in the live cache.
• hub/src/sync/sessionCache.ts:228 - applySessionConfig() also updates only the live cache.
• hub/src/store/index.ts:128 - sessions table has no permissionMode / modelMode columns.
• hub/src/store/types.ts:1 - StoredSession has no persisted permission-mode field.
• hub/src/sync/syncEngine.ts:371 - resumeSession() calls spawnSession(...) with undefined for model and yolo, only keeping resumeToken.
• hub/src/sync/rpcGateway.ts:106 - spawn RPC only carries model, yolo, and resumeSessionId to the runner.
• cli/src/runner/run.ts:361 - runner adds --model only when provided.
• cli/src/runner/run.ts:364 - runner adds --yolo only when yolo is true.
• cli/src/claude/runClaude.ts:145 - Claude starts with options.permissionMode ?? 'default'.
• cli/src/codex/runCodex.ts:52 - Codex also falls back to default when no mode is supplied.

So the behavior you described matches the current implementation.

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HAPI Bot