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feat(spec): add back edge style to the flow-builder canvas protocol - #2291
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…ocol `FlowCanvasEdgeStyleSchema` gains a `back` value alongside solid/dashed/dotted/bold, marking an ADR-0044 declared back-edge (a `revise` loop's resubmit edge). Flow-builder-protocol consumers can render it as a distinct curved/dashed return arc, set apart from forward flow — matching the objectui designer's canvas (objectstack-ai/objectui#1954). Additive enum value: public API surface + factory signatures unchanged. Part of #2274 (ADR-0044 AI/designer parity). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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📓 Docs Drift CheckThis PR changes 1 package(s): 91 hand-written doc(s) reference the affected code and may need an implementation-accuracy re-verification:
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…vision shape (#2294) The objectstack-automation skill documented approve/reject approvals (ADR-0019) but not the ADR-0044 revise loop, so AI-authored approval flows omit it (and a revise loop hand-built without the back-edge gets rejected by registerFlow). Add a "Send-back for revision" section to the Approvals area: the `revise` out-edge → a signal `wait` node, the resubmit edge typed `type: 'back'` (the only thing that legalizes the cycle — graph-minus-back-edges must be a DAG, authors opt in edge by edge), and the `maxRevisions` budget. Calls out the two shapes the compile-time flow lint flags (dead-end revise; unmarked back-edge) and points at the canonical showcase_budget_approval. Completes the agent-teaching slice of #2274 (ADR-0044), alongside the compile-time lint (#2279), the flow-builder `back` edge style (#2291), and the engine's already-specific cycle-rejection hint. Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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Part of #2274 (#2274 item 3 — spec completeness).
FlowCanvasEdgeStyleSchemagains abackvalue alongsidesolid/dashed/dotted/bold, marking an ADR-0044 declared back-edge (areviseloop's resubmit edge) so flow-builder-protocol consumers render it as a distinct curved/dashed return arc — matching the objectui designer's hand-rolled canvas (objectui#1954).Additive enum value —
check:api-surfaceconfirms the public API surface + factory signatures are unchanged.Verification:
@objectstack/specflow-builder tests 23 passing (acceptsback);tsc --noEmitclean; spec build green; api-surface check ✓.Refs #2274, #1770 (ADR-0044). 🤖 Generated with Claude Code