The owner-locked extraction-UX redesign (dispatch 2026-09-24), UI
chunk over Platform's data layer (eed4b4e — GET /api/chats/[id]
carries `coverage`, the threshold is Graph ▸ extractionChunkTokens):
1. SIDEBAR BLOCK (components/extraction-coverage.tsx +
sidebar's session menu): the coverage info block at the TOP of
the context menu — uncovered tokens, uncovered messages, running
state — then the Extract affordance (optimistic "extracting… /
Running" until the server says running; 409 = benign, the trigger
raced us), fetched ON MENU OPEN (the block mounts with the menu —
on-demand, never eagerly), polled at 2s while a run is in flight.
Visually separated from Rename/Delete by a hairline; those stay
the two session-management actions. Failed read → nothing (never
fake zeros).
2. RING METER (CoverageRing, chat top bar, before the PhaseChip):
a 16px donut filling uncoveredTokens / extractionChunkTokens —
"how close this session is to its next extraction run". Click →
the exact numbers (covered/uncovered tokens, messages, the
threshold, lastFoldedAt via timeAgo). Refresh chains: mount, the
turn-settle bump (chat.tsx coverageTick), the settings signal
(threshold/kill-switch re-read live), a 2s drain-poll while a run
is in flight, and the ACTIVITY FEED — a run for this session
appearing or settling in the dock's feed re-reads coverage (runs
fire from other surfaces — the sidebar menu, the turn pipeline —
and no turn-settle bump announces them; the runs-empty-transition
the graph view rides). Vanishes entirely when the graph is off or
before the first honest read. Running = the whole ring PULSES
(implementer's visual call: motion is the working-state signal in
this app's quiet register).
3. PHASECHIP UN-PILL: the phase label is a flat tag — no border, no
rounding, no padding. The Plan chip is the only button-shaped
thing in the top bar. Drag-surface (pointer-events-none) and aria
semantics unchanged; the transcript PhaseDivider keeps its look.
4. PANEL DEATH: components/graph-coverage.tsx, its graph-view
mount, and tests/render-graph-coverage.test.tsx die whole.
Confirmed: after this, NOTHING client-side consumes GET
/api/graph/coverage — the only remaining client use of the
coverage endpoints is the Extract POST (kept, by design); the
routes stay (Platform's call).
Pure seams exported for tests: ringFill (clamp math),
CoverageMenuBody, CoverageRingGlyph, CoverageRingDetail.
901/901.
Live-verified on :3001: ring fill arcs match the API byte-for-byte
(483/4096 = 4.45/37.70; 1991/4096 = 18.32/37.70); the sidebar block
reads "2k uncovered / 4 messages unextracted"; a real Extract run
went optimistic → dock run → menu settled "fully extracted" AND the
ring drained to the empty arc (the feed chain); graph off → the ring
vanishes; the flat phase label renders chrome-free beside the Plan
pill.
The round-1 experiment put the braille spinner in the chip's old dot
slot; rejected live: the pill's curve and the square braille cell fought
for space (visually squeezed), and the chat surface already shows
in-flight work (thinking shimmer, the dock) — the chip stating the phase
is its whole job. PhaseChip back to a label-only pill (busy prop
removed, single-child gap dropped); work-state lives in exactly one
place: the sidebar row's spinner. Doc note + test pin the decision so
it doesn't get re-tried blind. Gates: typecheck, lint, 469/469, build.
Nothing exists purely for decoration: phase color-coding is retired
app-wide (phases only advance — every session ends Teaching — so
phase-as-signal was decoration with a one-time function), and what
state genuinely deserved — 'a turn is in flight' — is now carried by
MOTION alone, in the terminal's own glyph language.
- BrailleSpinner (components/braille-spinner.tsx): the canonical
cli-spinner sequence (⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏) as exact dot bitmaps in a 2×4
braille cell, 80ms/frame (800ms cycle). Pure CSS: one shared keyframes,
frames staggered via animation-delay; no JS timer, no re-render per
frame — cheaper than the old breathing dot. Static contexts (SSR,
prefers-reduced-motion) show frame 0 — a legible glyph, not a blank.
- Sidebar rows: spinner ONLY while a teach turn is in flight; idle and
question-pending render NOTHING (a resting state has no scan value —
the meta line's 'Waiting for your answer' text carries it). The
three-state phase dot (pulse/solid/hollow) and PHASE_FILL/RING maps
are gone.
- Top bar PhaseChip: label-only pill; the old dot slot becomes the
spinner's home while a turn is in flight (busy prop wired from
ChatView's busy = localStream || turnInFlight). Transcript
PhaseDividers drop phase colors for monochrome rules + labels.
- API narrowing (app/api/chats/route.ts + ChatListItem contract):
busy = isTurnRunning ONLY — background jobs no longer count (the
sidebar's Background agents section is their channel; a per-row
spinner would double-signal them).
- globals.css: --phase-* tokens + lh-dot-breathe removed (dead after
the sweep — no remaining users).
Live-verified: idle/pending rows render no indicator, /chat/new chip is
label-only, 10 CSSAnimations at 800ms with correct 80ms stagger, static
frame 0 under reduced motion. Gates: typecheck, lint, 470/470, build.
Lane crossings to flag at merge: app/api/chats/route.ts + the
ChatListItem contract comment (src/core) — the busy-semantics narrowing;
components/chat.tsx one-line busy prop.
- components/phase-divider.tsx: PhaseChip (header, next to the session
title: phase-colored dot + Probing/Planning/Teaching) and PhaseDivider
(the transcript boundary: color-coded dotted rules + a small chip —
'Plan · N nodes' at the plan seam, 'Teaching' at the teach seam; probe
never renders, phases only advance). planNodeCount reads the seam
message's first plan tree.
- chat.tsx: dividers render at MESSAGE boundaries (phaseTimeline, one
linear fold) — the seam is the transition to the message's phase, so
the seam message's prose sits below its divider. requiresReveal now
uses phaseAt3 teach (an occupied node), so probe- AND plan-phase
questions auto-open.
- Retired the part-level plan-divider (artifact registry): the boundary
is message-level, not part-level. Its tests replaced by
render-phase-divider tests; core/phases gains tested phaseTimeline.
amosblomqvist