The CLI's in-chat `/yolo` toggle mutated `os.environ["HERMES_YOLO_MODE"]`
but had no effect because `tools/approval.py:_YOLO_MODE_FROZEN` captures
that env var once at module-import time (a deliberate security floor that
keeps prompt-injected skills from flipping the bypass mid-run). By the
time the user reaches `/yolo` in a running CLI session, `tools.approval`
has already been imported, so the env flip after that is a silent no-op.
Result: `/yolo` advertised "⚠ YOLO" in the status bar while every
dangerous command still hit the approval prompt or got denied. Only
`hermes --yolo` (set before tool imports), `HERMES_YOLO_MODE=1 hermes ...`,
and `hermes config set approvals.mode off` actually bypassed.
This patches the CLI to match what the gateway and TUI `/yolo` handlers
already do, plus mirrors the TUI's session-rename YOLO transfer:
* `_toggle_yolo()` now calls `enable_session_yolo(self.session_id)` /
`disable_session_yolo(self.session_id)` instead of touching the env
var. Matches `gateway/run.py:_handle_yolo_command` and the
`tui_gateway/server.py` key=="yolo" branch.
* Around each `run_conversation()` call, `run_agent()` now binds
`set_current_session_key(self.session_id)` so
`tools.approval.is_current_session_yolo_enabled()` resolves against
the same key the toggle writes under, and resets it in `finally` so
reused threads don't see stale identity. Matches the
`tui_gateway/server.py` and `gateway/platforms/api_server.py` binding
pattern.
* New `_transfer_session_yolo()` helper carries YOLO bypass state
across `self.session_id` reassignments — `/branch` forking into a
new session id and the auto-compression sync that rotates into a
fresh continuation session id. Without this, the same UX failure
mode the rest of this fix addresses (silent `/yolo` no-op) would
reappear after a single `/branch` or auto-compression event.
Mirrors `tui_gateway/server.py` ~line 1297-1305.
* New `_is_session_yolo_active()` helper replaces the two
`bool(os.getenv("HERMES_YOLO_MODE"))` reads in the status-bar
builders, so the badge reflects the actual bypass state. Uses
`getattr(self, "session_id", None)` so status-bar test fixtures
that bypass `__init__` via `HermesCLI.__new__(HermesCLI)` don't
trip `AttributeError` (the builders swallow exceptions silently
and lose every field after the failure). Still honors
`_YOLO_MODE_FROZEN` so `hermes --yolo` keeps lighting it up.
The `_YOLO_MODE_FROZEN` security freeze is preserved — env-var-based
opt-in still only works when set before process start, which is the
documented contract for `--yolo` / `HERMES_YOLO_MODE`.
Closes#33925
