fix(setup): auto-detect nightly channel from .dev install version#381
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A user who runs `pipx install --pip-args=--pre bicameral-mcp` (or the uv prerelease equivalent) lands on a CalVer .devN build, but the wizard hardcoded `channel: stable` into `.bicameral/config.yaml`. `bicameral.update` then queried PyPI's `info.version` — which hides .devN by design — and silently never offered an upgrade, stranding nightly users on whatever build they happened to --pre install. Wizard now reads the running package version (importlib.metadata, with a pyproject.toml fallback for source checkouts) and writes `channel: nightly` when a `.dev` segment is present, `channel: stable` otherwise. `run_config_wizard` preserves the existing channel on rewrite so re-running `bicameral-mcp config` no longer drops the field. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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This was referenced May 16, 2026
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Surfaces the setup-wizard nightly-channel auto-detect fix (PR BicameralAI#381) to design partners. Without it, anyone who installed via `pipx install --pip-args=--pre bicameral-mcp` ran `bicameral-mcp setup` into a config hardcoded to `channel: stable`, so `bicameral.update` silently never offered the nightly upgrade path. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
channel: nightlywhen the running build carries a PEP 440.devNsegment (pipx install --pip-args=--pre bicameral-mcp/uv tool install --prerelease=allow),channel: stableotherwise.run_config_wizardpreserves the existingchannelfield on rewrite so re-runningbicameral-mcp configno longer drops it.bicameral.updatecompared their CalVer install against PyPI'sinfo.version(which hides.devN), saw them as already-ahead, and silently never offered an upgrade.Linked issues
None — direct fix surfaced in a pilot conversation.
Plan / Audit / Seal
Plan: trivial; risk:L1. Single-function behavior change + new tests, no API surface change (new param is keyword-only with a default that preserves prior callers).
Test plan
pytest tests/test_setup_wizard_channel_autodetect.py tests/test_preflight_attribution_redaction.py -q(14/14)pytest tests/test_setup_wizard*.py -q(51/51)ruff check setup_wizard.py tests/test_setup_wizard_channel_autodetect.py(clean)🤖 Generated with Claude Code