Over SSH the OSC 11 background-color query round-trip routinely exceeds
the 100ms read budget, so _query_osc11_background() gives up and the late
reply lands after prompt_toolkit has grabbed the tty. prompt_toolkit then
injects the OSC payload as typed text and reads its BEL terminator
(\x07 = Ctrl+G) as a keystroke — Ctrl+G is the open-external-editor
binding, dropping the user into vi with garbage and no obvious way out.
- Skip the OSC 11 probe on remote sessions (SSH_CONNECTION/CLIENT/TTY);
fall back to COLORFGBG / env hints / the dark default.
- Restore the tty with TCSAFLUSH instead of TCSANOW so any partial/late
reply is scrubbed from the input buffer before pt reads it.
Remove unused imports (F401) and duplicate/shadowed import
redefinitions (F811) across the codebase using ruff's safe
autofixes. No behavioral changes -- imports only.
- ~1400 safe autofixes applied across 644 files (net -1072 lines)
- __init__.py re-exports preserved (excluded from F401 removal so
public re-export surfaces stay intact)
- Re-exports that are imported or monkeypatched by tests but look
unused in their defining module are kept with explicit # noqa:
F401 (gateway/run.py load_dotenv; run_agent re-exports from
agent.message_sanitization, agent.context_compressor,
agent.retry_utils, agent.prompt_builder, agent.process_bootstrap,
agent.codex_responses_adapter)
- Unsafe F841 (unused-variable) fixes deliberately skipped -- those
can change behavior when the RHS has side effects
- ruff lints remain disabled in pyproject.toml (only PLW1514 is
selected); this is a one-time cleanup, not a config change
Verification:
- python -m compileall: clean
- pytest --collect-only: all 27161 tests collect (zero import errors)
- core entry points import clean (run_agent, model_tools, cli,
toolsets, hermes_state, batch_runner, gateway)
- static scan: every name any test imports directly from an edited
module still resolves
Adds 16 unit tests covering the light/dark terminal detection path
introduced in the previous commit:
- Env override priority (HERMES_LIGHT, HERMES_TUI_LIGHT,
HERMES_TUI_THEME, HERMES_TUI_BACKGROUND, COLORFGBG)
- Detection cache stickiness
- _maybe_remap_for_light_mode() no-op in dark mode
- Known dark-mode color remap (#FFF8DC -> #1A1A1A etc)
- Case-insensitive lookup
- Unknown color passthrough
- Status-bar paired colors (#C0C0C0, #888888, #555555, #8B8682) are
intentionally NOT remapped — regression guard for the patch-11 fix,
since remapping them would produce dark-on-dark on the status bar's
navy bg
- SkinConfig.get_color() wrapper is installed and idempotent
- SkinConfig.get_color() does remap in light mode and passes through
in dark mode
We don't try to fake an OSC 11 reply — that path is exercised
end-to-end in real Terminal.app; the env-override path covers the
algorithmic logic.
