Make the bake-off-validated Workflow substrate (Arm B) reachable behind an
opt-in --workflow flag for /trekreview. Default Phase 5-6 path stays prose
to preserve the lower portability floor; --workflow raises the consumer
floor to Claude Code 2.1.154+ (the Workflow tool).
- arg-parser: --workflow added to trekreview boolean flags
- commands/trekreview.md: flag row + Phase 5 substrate-routing gate +
new section 'Phase 5-6 via the Workflow substrate' (invocation contract,
S10 gotchas, bake-off citation, auto/bypass residual as Known limitation)
- docs/command-modes.md: --workflow row in /trekreview table
- routes to existing scripts/trekreview-armB.workflow.mjs (byte-identical to
the S10 part-B POSITIVE build); integration is pure routing, no script change
TDD: 8 new tests (arg-parser flag recognition + combine; command/doc prose
pins for route, opt-in posture, 2.1.154+ floor, bake-off evidence).
Suite 662 -> 670 (668 pass / 2 skip / 0 fail). plugin validate clean modulo
known root-CLAUDE.md warning. Resolves W1-narrow-wins-plan.md S11.
Step 1 of v3.4.1 hot-fix plan (project 2026-05-04-v3.3.1-ultracontinue-fixes).
Adds ultracontinue entry to FLAG_SCHEMA covering boolean flags --help,
--cleanup, --confirm, --dry-run with no valued flags. The -h short form
is intentionally not aliased: it appears as positional[0] === '-h' and
the command prose dispatches usage on either condition.
7 new tests in tests/lib/arg-parser.test.mjs verify empty args, --help,
-h positional, --cleanup, --cleanup --confirm, project-dir positional,
and .md positional (parser-level accept; command-level reject).
