feat(reports): leftover-map singular values on leftover-axis ticks independently of leftover-map axis share (v2.87.0)

AGENTS.md

@@ -699,6 +699,15 @@ axis share. Rank-0 unused axes still name leftover-map comparison leftover-axis
 `σ 0.00`. Do not invent leftover-map singular values from leftover-map axis share. Do not invent leftover-map
 axis share from leftover-map singular values. This increment does not change leftover-map comparison graphic leftover-map
 axis ticks.
+ADR 0330 captions leftover-axis ticks with persisted leftover-map
+singular values `σ_k` when leftoverMapAxisTickBadge returns a usable leftover-axis
+tick caption. Distinct accessible name
+`leftover axis {axis} tick {value} σ {singular}`. Singular value omits independently
+of leftover-map axis share. Leftover-axis ticks never name leftover-map
+axis share. Rank-0 unused axes still name leftover-axis tick
+`σ 0.00`. Do not invent leftover-map singular values from leftover-map axis share. Do not invent leftover-map
+axis share from leftover-map singular values. This increment does not change leftover-map comparison leftover-axis
+ticks.
 When `R`, `R̂`, `U`, `x`,
 `s`, and `e` are finite, `e + s + x = 1`. When `Y`, `E`, and `R` are
 finite, `Y − E = R`. When `R`, `R̂`, and `U` are

ARCHITECTURE.md

@@ -770,6 +770,9 @@ axis tick caption independently of leftover-map axis share.
 ADR 0329 captions leftover-map comparison leftover-axis ticks with persisted leftover-map
 singular values `σ_k` when leftoverMapCompareAxisTickBadge returns a usable leftover-axis
 tick caption independently of leftover-map axis share.
+ADR 0330 captions leftover-axis ticks with persisted leftover-map
+singular values `σ_k` when leftoverMapAxisTickBadge returns a usable leftover-axis
+tick caption independently of leftover-map axis share.
 Click a post marker or a pair button
 opens that post. Those ADRs are the normative mathematical, storage, and
 display contracts. Leftover-map axis share
@@ -829,7 +832,8 @@ comparison graphic leftover-map axis leftover-map singular values as leftoverMap
 (ADR 0326), leftover-map graphic leftover-map axis tick leftover-map singular values independently of leftover-map axis share
 (ADR 0327), leftover-map comparison graphic leftover-map axis tick leftover-map singular values independently of leftover-map axis share
 (ADR 0328), leftover-map comparison leftover-axis tick leftover-map singular values independently of leftover-map axis share
-(ADR 0329);
+(ADR 0329), leftover-axis tick leftover-map singular values independently of leftover-map axis share
+(ADR 0330);
 `POST .../rebuild` scores every grouping kind (post_admin). `make seed`
 folds A-100/B-200 Event Lineage fixtures (and the Riverbend calendar
 post) that already have constructed IRT cells into the same shared

CHANGELOG.d/2.87.0-leftover-map-axis-tick-badge.md

@@ -0,0 +1,22 @@
+## 2.87.0 — Leftover-map singular values on leftover-axis ticks independently of leftover-map axis share
+
+- Caption leftover-axis ticks with persisted leftover-map singular values `σ_k`
+  through leftoverMapAxisTickBadge independently of leftover-map axis share
+  (ADR 0330). After `make seed`, leftover-axis ticks name persisted leftover-map
+  singular values when leftoverMapAxisTickBadge returns a usable leftover-axis tick
+  `σ` caption even when leftover-map axis share is omitted; click a leftover pair
+  opens that post. A missing, non-finite, or negative singular value omits that
+  `σ` tick caption and keeps `leftover axis {k} tick {value}`. Rank-0 unused
+  axes still name `σ 0.00`. Leftover-axis ticks stay
+  `leftover axis {k} tick {value} σ {singular}` when `σ_k` is finite so they stay
+  distinct from leftover-map comparison leftover-axis ticks
+  `leftover map comparison leftover axis {k} tick {value} σ {singular}`, from leftover-map
+  comparison graphic leftover-map axis ticks
+  `leftover map comparison graphic leftover-map axis {k} tick {value} σ {singular}`, from leftover-map
+  graphic leftover-map axis ticks `leftover-map axis {k} tick {value} σ {singular}`, from leftover-axis
+  `leftover axis {k} σ {value}`, and from leftover-map graphic leftover-map axis
+  `leftover-map axis {k} σ {value}`. Do not invent `σ_k` from leftover-map axis
+  share. Do not invent leftover-map axis share from `σ_k`. Leftover-axis ticks
+  never name leftover-map axis share. This increment does not change leftover-map
+  comparison leftover-axis ticks. A finite negative leftover is shown, never
+  clamped. Never invent a leftover score. Never invent a theta. No new columns.

CHANGELOG.md

@@ -8,6 +8,27 @@ All notable changes to this project are documented here. Format follows
 
 ### Added
 
+- Period leftover pairs now caption leftover-axis ticks with persisted leftover-map
+  singular values `σ_k` through leftoverMapAxisTickBadge independently of leftover-map
+  axis share (ADR 0330 / v2.87.0). After `make seed`, leftover-axis ticks name
+  persisted leftover-map singular values when leftoverMapAxisTickBadge returns a
+  usable leftover-axis tick `σ` caption even when leftover-map axis share is omitted;
+  click a leftover pair opens that post. A missing, non-finite, or negative singular
+  value omits that `σ` tick caption and keeps `leftover axis {k} tick {value}`.
+  Rank-0 unused axes still name `σ 0.00`. Leftover-axis ticks stay
+  `leftover axis {k} tick {value} σ {singular}` when `σ_k` is finite so they stay
+  distinct from leftover-map comparison leftover-axis ticks
+  `leftover map comparison leftover axis {k} tick {value} σ {singular}`, from leftover-map
+  comparison graphic leftover-map axis ticks
+  `leftover map comparison graphic leftover-map axis {k} tick {value} σ {singular}`, from leftover-map
+  graphic leftover-map axis ticks `leftover-map axis {k} tick {value} σ {singular}`, from leftover-axis
+  `leftover axis {k} σ {value}`, and from leftover-map graphic leftover-map axis
+  `leftover-map axis {k} σ {value}`. Do not invent `σ_k` from leftover-map axis
+  share. Do not invent leftover-map axis share from `σ_k`. Leftover-axis ticks
+  never name leftover-map axis share. This increment does not change leftover-map
+  comparison leftover-axis ticks. A finite negative leftover is shown, never
+  clamped. Never invent a leftover score or a theta. No new columns.
+
 - Period leftover pairs now caption leftover-map comparison leftover-axis
   ticks with persisted leftover-map singular values `σ_k` through
   leftoverMapCompareAxisTickBadge independently of leftover-map axis share

CLAUDE.md

@@ -49,7 +49,7 @@ cutoff. Global Ask optional `knowledge_cutoff` uses the same cover
 
 Create/start endpoint rules (ADR 0017 / 0021), tie-vs-miss similarity
 (ADR 0026), R&R catalog ids (ADR 0019 / 0027), leftover pairs
-(ADR 0048–0164 / 0182 / 0185 / 0201 / 0233 / 0266 / 0267 / 0268 / 0269 / 0270 / 0271 / 0272 / 0273 / 0274 / 0275 / 0276 / 0277 / 0278 / 0279 / 0280 / 0281 / 0282 / 0283 / 0284 / 0285 / 0286 / 0287 / 0288 / 0289 / 0290 / 0291 / 0292 / 0293 / 0294 / 0295 / 0296 / 0297 / 0298 / 0299 / 0300 / 0301 / 0302 / 0303 / 0304 / 0305 / 0306 / 0307 / 0308 / 0309 / 0310 / 0311 / 0312 / 0313 / 0314 / 0315 / 0316 / 0317 / 0318 / 0319 / 0320 / 0321 / 0322 / 0323 / 0324 / 0325 / 0326 / 0327 / 0328 / 0329), occupational construct catalog search
+(ADR 0048–0164 / 0182 / 0185 / 0201 / 0233 / 0266 / 0267 / 0268 / 0269 / 0270 / 0271 / 0272 / 0273 / 0274 / 0275 / 0276 / 0277 / 0278 / 0279 / 0280 / 0281 / 0282 / 0283 / 0284 / 0285 / 0286 / 0287 / 0288 / 0289 / 0290 / 0291 / 0292 / 0293 / 0294 / 0295 / 0296 / 0297 / 0298 / 0299 / 0300 / 0301 / 0302 / 0303 / 0304 / 0305 / 0306 / 0307 / 0308 / 0309 / 0310 / 0311 / 0312 / 0313 / 0314 / 0315 / 0316 / 0317 / 0318 / 0319 / 0320 / 0321 / 0322 / 0323 / 0324 / 0325 / 0326 / 0327 / 0328 / 0329 / 0330), occupational construct catalog search
 (ADR 0257), the text-channel embedding swap and cosine
 clamp (ADR 0190), per-edge channel-score persistence (ADR 0195),
 token-backed status notices (ADR 0220),

docs/adr/0148-leftover-map-axis-share.md

@@ -19,7 +19,9 @@
 [ADR 0328](0328-leftover-map-compare-plot-tick-axis-badge.md)
 (leftover-map comparison graphic leftover-map axis tick leftover-map singular values independently of leftover-map axis share);
 [ADR 0329](0329-leftover-map-compare-axis-tick-badge.md)
-(leftover-map comparison leftover-axis tick leftover-map singular values independently of leftover-map axis share)
+(leftover-map comparison leftover-axis tick leftover-map singular values independently of leftover-map axis share);
+[ADR 0330](0330-leftover-map-axis-tick-badge.md)
+(leftover-axis tick leftover-map singular values independently of leftover-map axis share)
 
 ## Context
 

docs/adr/0329-leftover-map-compare-axis-tick-badge.md

@@ -116,7 +116,9 @@ report badges independently of leftover-map axis share
 report badges on the grouping comparison strip
 ([ADR 0323](0323-leftover-map-compare-axis-singular.md)). Independent of leftover-map coordinate ticks on the grouping
 comparison leftover-map graphic
-([ADR 0320](0320-leftover-map-compare-plot-ticks.md)).
+([ADR 0320](0320-leftover-map-compare-plot-ticks.md)). Independent of leftover-axis
+tick leftover-map singular values independently of leftover-map axis share
+([ADR 0330](0330-leftover-map-axis-tick-badge.md)).
 
 ## References
 

docs/adr/0330-leftover-map-axis-tick-badge.md

@@ -0,0 +1,114 @@
+# ADR 0330 — Name leftover-map singular values on leftover-axis ticks independently of leftover-map axis share
+
+**Decision status:** Accepted
+**Date:** 2026-08-31
+
+Amends leftover-map singular values on leftover-axis report badges independently of leftover-map
+axis share ([ADR 0325](0325-leftover-map-axis-singular-only.md)), leftover-map axis share
+persistence ([ADR 0148](0148-leftover-map-axis-share.md)). Independent of leftover-map
+comparison leftover-axis tick leftover-map singular values independently of leftover-map axis share
+([ADR 0329](0329-leftover-map-compare-axis-tick-badge.md)), leftover-map comparison graphic leftover-map
+axis tick leftover-map singular values independently of leftover-map axis share
+([ADR 0328](0328-leftover-map-compare-plot-tick-axis-badge.md)), leftover-map graphic leftover-map axis
+tick leftover-map singular values independently of leftover-map axis share
+([ADR 0327](0327-leftover-map-plot-tick-axis-badge.md)).
+
+## Context
+
+ADR 0148 already persists leftover-map singular values `σ_k` and leftover-map
+axis share `σ_k² / Σ_j σ_j²`. ADR 0325 already captions leftover-axis report
+badges as leftoverMapAxisBadge independently of leftover-map axis share. ADR 0270
+already ticks leftover-map graphic leftover-map axes at persisted `ξ` / `ζ`
+projections. ADR 0327 already captions leftover-map graphic leftover-map axis ticks
+with `σ_k` through leftoverMapPlotTickAxisBadge. ADR 0329 already captions leftover-map
+comparison leftover-axis ticks with `σ_k` through leftoverMapCompareAxisTickBadge.
+Those leftover-axis report badges still omit leftover-axis ticks, so a buyer who
+reads leftover-axis badges or leftover-map graphic leftover-map axis ticks can treat leftover-map
+coordinate ticks or leftover-map axis share as leftover-map structure without a next action.
+A missing, non-finite, or negative singular value is not a leftover score and must omit
+independently of leftover-map axis share. Rank-0 unused axes still persist `σ_k = 0`.
+A finite negative leftover is shown, never clamped. Do not invent `σ_k` from leftover-map
+axis share. Do not invent leftover-map axis share from `σ_k`. Leftover-axis ticks never
+name leftover-map axis share.
+
+This increment names leftover-axis ticks leftover-map singular values as leftoverMapAxisTickBadge,
+matching leftoverMapAxisBadge, leftoverMapCompareAxisTickBadge, leftoverMapPlotTickAxisBadge,
+leftoverMapComparePlotTickAxisBadge, leftoverMapCompareAxisBadge, leftoverMapComparePlotAxisBadge,
+and leftoverMapPlotAxisBadge. Leftover-axis ticks reuse `layoutLeftoverMapPlot` ticks so origin
+`0.00` plus unique finite `ξ` / `ζ` projections match the leftover-map graphic. Copy stays
+`leftover axis {k} tick {value} σ {singular}` when `σ_k` is finite so they stay distinct from leftover-map
+comparison leftover-axis ticks `leftover map comparison leftover axis {k} tick {value} σ {singular}`
+(ADR 0329), from leftover-map comparison graphic leftover-map axis ticks
+`leftover map comparison graphic leftover-map axis {k} tick {value} σ {singular}` (ADR 0328), from leftover-map
+graphic leftover-map axis ticks `leftover-map axis {k} tick {value} σ {singular}` (ADR 0327), from leftover-axis
+`leftover axis {k} σ {value}` (ADR 0325), and from leftover-map graphic leftover-map axis
+`leftover-map axis {k} σ {value}` (ADR 0324). It does not add columns. Do not invent a leftover score.
+Do not invent a theta.
+
+This protected increment uses **0330** so it does not collide with leftover-map comparison leftover-axis
+tick leftover-map singular values independently of leftover-map axis share (0329), leftover-map comparison graphic leftover-map
+axis tick leftover-map singular values independently of leftover-map axis share (0328), leftover-map graphic leftover-map
+axis tick leftover-map singular values independently of leftover-map axis share (0327), leftover-map singular values on leftover-axis
+report badges independently of leftover-map axis share (0325), leftover-map axis share persistence (0148), or the dashboard stacks.
+
+## Decision
+
+On leftover-axis ticks on the leftover-pair list leftover-axis surface, caption leftover-map axis `k`
+tick `{value}` with persisted leftover-map singular value `σ_k` when leftoverMapAxisTickBadge returns a
+usable leftover-axis tick caption that includes that singular value. Share and singular value omit
+independently through that helper, and leftover-map axis share is never named on leftover-axis ticks:
+no `σ_k` keeps `leftover axis {k} tick {value}`; `σ_k` only is
+`leftover axis {k} tick {value} σ {singular}`. A missing, non-finite, or negative singular value
+omits that `σ` tick caption and keeps a usable leftover-axis tick coordinate caption. Rank-0 unused
+axes still name `σ 0.00`. Origin `0.00` plus each unique finite persisted `ξ` / `ζ` projection still
+name leftover-axis ticks. If `layoutLeftoverMapPlot` is null, omit leftover-axis ticks. Click a leftover
+pair to open that post.
+
+Leftover-axis tick leftover-map singular values omit independently of leftover-map comparison leftover-axis
+tick leftover-map singular values, leftover-map comparison graphic leftover-map axis tick leftover-map singular
+values, leftover-map graphic leftover-map axis tick leftover-map singular values, leftover-map graphic-display leftover-map
+axis singular values, leftover-axis report badge leftover-map singular values, and leftover-map comparison leftover-axis
+singular values. A missing leftover-map axis share omits leftover-map axis share and keeps a usable leftover-axis
+tick `σ` caption.
+
+This increment does not change leftover-map comparison leftover-axis ticks. Those leftover-map comparison leftover-axis
+ticks stay `leftover map comparison leftover axis {axis} tick {value} σ {singular}` (ADR 0329). This increment
+does not persist leftover-map inner product, cosine, or length.
+
+Do not add SQL. Do not edit shipped migrations. Do not invent a leftover score. Do not invent a theta.
+
+## Consequences
+
+After `make seed`, leftover-axis ticks name persisted leftover-map singular values when leftoverMapAxisTickBadge
+returns a usable leftover-axis tick `σ` caption even when leftover-map axis share is omitted; click a leftover
+pair opens that post. Hidden posts stay hidden. Rank-0 unused axes still name leftover-axis tick `σ 0.00`.
+Leftover-map comparison leftover-axis tick leftover-map singular values independently of leftover-map axis share
+(ADR 0329), leftover-map comparison graphic leftover-map axis tick leftover-map singular values independently of leftover-map
+axis share (ADR 0328), leftover-map graphic leftover-map axis tick leftover-map singular values independently of leftover-map
+axis share (ADR 0327), leftover-axis report badge leftover-map singular values independently of leftover-map axis share
+(ADR 0325), leftover-map graphic-display leftover-map singular values (ADR 0324), leftover-map singular values on leftover-axis
+report badges on the grouping comparison strip (ADR 0323), and leftover-map graphic leftover-map axis ticks (ADR 0270) remain.
+
+## Related
+
+Independent of leftover-map comparison leftover-axis tick leftover-map singular values independently of leftover-map
+axis share ([ADR 0329](0329-leftover-map-compare-axis-tick-badge.md)). Independent of leftover-map comparison graphic leftover-map
+axis tick leftover-map singular values independently of leftover-map axis share
+([ADR 0328](0328-leftover-map-compare-plot-tick-axis-badge.md)). Independent of leftover-map graphic leftover-map axis tick leftover-map
+singular values independently of leftover-map axis share
+([ADR 0327](0327-leftover-map-plot-tick-axis-badge.md)). Independent of leftover-map singular values on leftover-axis report badges
+independently of leftover-map axis share ([ADR 0325](0325-leftover-map-axis-singular-only.md)). Independent of leftover-map
+coordinate ticks on the leftover-map graphic ([ADR 0270](0270-leftover-map-coordinate-ticks.md)).
+
+## References
+
+Gabriel, K. R. (1971). The biplot graphic display of matrices with
+application to principal component analysis. *Biometrika, 58*(3),
+453–467. https://doi.org/10.1093/biomet/58.3.453
+
+Jeon, M., Jin, I. H., Schweinberger, M., & Baugh, S. (2021). Mapping
+unobserved item–respondent interactions: A latent space item response
+model with interaction map. *Psychometrika, 86*(2), 378–403.
+https://doi.org/10.1007/s11336-021-09762-5
+(LSIRM interaction `−γ‖ξ_j − ζ_i‖` after main effects
+`α_j − β_i`; typically `p = 2` for the interaction map.)

docs/product-technical-gap-baseline.md

@@ -1,5 +1,24 @@
 # Product & Technical Gap Baseline
 
+> Exact-head loop overlay: 2026-08-31 13:28 KST. Protected `main` is
+> `cb187cadee5fb6c46d8a944815ccc154a1e028d1`. Writes work. Do not
+> self-approve. #870 leftover-map singular values on leftover-map comparison leftover-axis
+> ticks independently of leftover-map axis share (v2.86.0 / ADR 0329) is
+> `b086d97`, stacked on #869 @ `98a29e4`. Independent APPROVE is missing. Next
+> buyer increment on this cycle: leftover-axis ticks naming persisted leftover-map
+> singular values independently of leftover-map axis share (ADR 0330 / v2.87.0)
+> delivered locally on `feat/leftover-map-axis-tick-badge-v2870`. Caption persisted leftover-map
+> singular values `σ_k` on leftover-axis ticks when leftoverMapAxisTickBadge returns
+> a usable leftover-axis tick `σ` caption. Distinct accessible name
+> `leftover axis {axis} tick {value} σ {singular}`. Rank-0 unused axes still name
+> `σ 0.00`. Singular value omits independently of leftover-map axis share. Leftover-axis
+> ticks never name leftover-map axis share. Do not invent `σ_k` from leftover-map
+> axis share. Do not invent leftover-map axis share from `σ_k`. Do not persist leftover-map
+> inner product, cosine, or length. Do not change leftover-map comparison leftover-axis
+> ticks this increment. Stack onto #870. Leave open for independent review. Do
+> not squash-merge. Do not self-approve. Issues #79 and #87 stay open. Do not merge
+> #808 without independent APPROVE. Never self-approve.
+
 > Exact-head loop overlay: 2026-08-31 13:17 KST. Protected `main` is
 > `cb187cadee5fb6c46d8a944815ccc154a1e028d1`. Writes work. Do not
 > self-approve. #869 leftover-map singular values on leftover-map comparison graphic leftover-map