docs: Regions & Signals Ribbon — draw-to-label UX spec#32
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A single horizontal strip under the viewer: draw a span and label it in one gesture, beside the regions LOGAN auto-finds. Resolves the review's three issues — the "signal" naming collision (Region = window of interest vs Signal = numeric series), the draw-vs-navigate conflict (bare drag navigates; drawing needs explicit Mark mode), and the precision gap (create precisely via viewer line-selection; rough-draw on the ribbon then snap). Adds the two power moves that make it an analyst tool: compare two regions (baseline/diff reuse) and promote a region to a repeatable rule (investigation-template reuse) — the manual-to-repeatable bridge to the CI gate. Thin surface over existing parts; no new chart/persistence/scan engine. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Design spec for the "draw an area on the log and label it" ribbon — the UX the user sketched, reviewed from UX-designer + log-analyst seats.
Resolves the review's three problems
Region(a labeled window of interest — what you draw / auto-detect) vsSignal(a numeric time-series — unchanged). One strip, both, honest names.The two power moves (why it's worth building)
Reuse, not rebuild: minimap canvas (backdrop), Signals time axis (x-axis), range-annotation model (
kind:'region'storage + jump),logan_evidence_pack(auto regions),trend_show/Signals (charting), baseline/diff (compare), investigation-templates (promote). No new chart/persistence/scan engine.Docs-only. Ties into
GRANULARIZATION_DESIGN.md(the Auto row is the visual surface for the evidence pack) and the AI-logging-framework thread (promote-to-rule = teaching the gate from the analysis side).🤖 Generated with Claude Code