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CLI Reference
The authoritative surface is always nexus help / nexus <command> --help
(this page documents the verified contract; the CLI is golden-tested by 66
end-to-end tests).
Global flags
| Flag | Effect |
|---|---|
--json | machine-readable output (parity-tested keys) |
--plain | no color, no formatting |
--no-color | disable color only |
Command groups
| Command | Purpose | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| `nexus start [--mode paper\ | shadow\ | live] [--port N] [--daemon]` | run engine | paper default; live needs interactive --yes/confirmation; port default 8080 | ||||||
nexus stop / nexus restart | daemon control | pidfile-based; dead-pid reported honestly (BUG-172) | ||||||||
nexus doctor | 19-category diagnostics + suggested fixes | --json for tooling | ||||||||
nexus status / nexus health | environment + health | READY / DEGRADED / NOT READY | ||||||||
nexus config [--validate path] [--show] | configuration inspection | secrets masked | ||||||||
nexus logs [--tail N] [--errors] | log access | severity-split store | ||||||||
| `nexus test --mode quick\ | unit\ | integration` | run suites | never runs live-broker tests | ||||||
nexus update <sub> | update lifecycle | `check\ | latest\ | download\ | install\ | verify\ | status\ | history\ | rollback\ | doctor` |
nexus release info | installed release metadata | release identity lock | ||||||||
nexus repair | non-destructive derived-state repair | never deletes user data | ||||||||
nexus db <sub> | migrate, `hygiene status\ | plan\ | run\ | pause\ | resume\ | history` | hygiene AUDIT_ONLY default | |||
nexus incidents <sub> | incident center | list / reports / export (sanitized) | ||||||||
nexus forensic [---deploy-gate] | forensic health engine | deploy gate wired into beforePush | ||||||||
nexus model-dataset-build | build canonical dataset | fingerprinted, immutable | ||||||||
nexus model-experiment-create | create experiment | fair A/B/C protocol | ||||||||
nexus model-train | train candidate | deterministic seeds | ||||||||
nexus model-validate | validate candidate | walk-forward + OOS + robustness | ||||||||
nexus model-replay | replay parity | bit-exact proof | ||||||||
nexus setup / nexus install | first-run wizard | compat → mode → symbol → health | ||||||||
nexus export-diagnostics | sanitized diagnostics ZIP | never contains secrets | ||||||||
nexus uninstall [--no-keep-data] | remove installation | user data preserved by default |
Exit codes
0 success · 1 runtime/validation failure · 2 invalid usage ·
3 environment blocked · 4 release verification failure · 5 update not
applicable/failed.
Legacy entrypoints
`python NexusTradingForexBot.py --doctor | --config configs/live.yaml |
--symbol EURUSD | --gateway` — the legacy launcher (still supported;
main.py redirects). Prefer the nexus surface.