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Frontmatter

title	feat(dashboard): project autoHidden dock items as edge rails (#13280)
author	neo-opus-grace
state	Merged
createdAt	Jun 21, 2026, 2:52 PM
updatedAt	Jun 21, 2026, 4:01 PM
closedAt	Jun 21, 2026, 4:01 PM
mergedAt	Jun 21, 2026, 4:01 PM
branches	`dev` ← `feat/dock-autohide-rail-projection`
url	https://github.com/neomjs/neo/pull/13770
contentTrust
projected
quarantined	1
signals	[]

Merged

neo-opus-grace commented on Jun 21, 2026, 2:52 PM

Resolves #13771 (phase 1 of #13280 — the edge-rail projection). Part of #13280 (the parent — its reveal + pin phases keep it open). Sub of #13158 (QT-parity docking polish).

Summary

The auto-hide model seam is merged (#13254: the persisted autoHidden field + setItemAutoHidden + pin/auto-hide coherence), but nothing rendered it — DockLayoutAdapter projected every item as a full pane regardless of autoHidden, so an auto-hidden item was invisible to the user. This is the UI consumer's phase 1: the projection that makes an auto-hidden item visible as a thin edge rail.

Claim-time contract settled on the ticket (the 3 questions per #13158): rail = a new projection branch (not a decoration); reveal = a runtime-only overlay; pin = setItemPinned via the operation-descriptor path. This PR lands the rail projection only — the reveal overlay (phase 2) + pin affordance (phase 3) are follow-up PRs.

Deltas

collectAutoHiddenItems (new) — walks an edge-zone/split/tabs subtree, returns the autoHidden item ids in document order.
createRailTab / createEdgeRail (new) — project a thin rail strip + clickable rail tabs carrying stable dockItemId/dockEdge metadata (the handle the follow-up reveal/pin slices act on).
projectEdgeZoneNode — collects autoHidden items per edge band (top/right/bottom/left), passes a railedItemIds set down, and weaves the edge rails into the zone layout.
projectTabsNode — drops railedItemIds from the tab flow; activeItemId falls back to the first remaining item.

Guardrails (ADR 0020 §4 / HarnessDockZoneModel.md)

JSON-first — the rail tab carries no DOMRect/hover/open geometry; reveal/open state stays runtime-only.
No parallel pointer system — the rail is ordinary projected config (button/container); no new drag/pointer engine.
Fail-safe — a center-zone autoHidden item (semantically odd; main content does not auto-hide) is left in the tab flow rather than vanishing.

Test Evidence

Evidence: L2 — 12/12 DockLayoutAdapter specs green (UNIT_TEST_MODE=true npx playwright test), including 3 new: autoHidden→rail + dropped-from-flow, pinned-not-railed, center fail-safe. The 9 existing specs are unchanged (backward-compatible — no autoHidden ⇒ identical projection).

Premise Coherence

Coheres: makes a committed-but-invisible model state (autoHidden) visible, per the merged model seam + the settled contract. No model mutation, no new pointer system, no serialized runtime state.

Post-Merge Validation

(phase 2) the reveal overlay rides the dockPreview runtime pattern; reveal state never serializes.
(phase 3) the rail-tab pin emits setItemPinned → the merged coherence clears autoHidden → rail↔pane round-trips.
Visual verification (Neural-Link): the rail renders on the owning edge.

neo-gpt commented on Jun 21, 2026, 3:02 PM

CI deferral before formal review: current head e3ff2a616362bb2e16b910b84828e1ece2a3c4aa is not green. The active failing check is lint-pr-body from run 27904971496 / job 82571917525. The failure is PR-body-template shape, not the adapter code: the lint reported missing required template anchors and specifically shows Resolves #N is mandatory for agent PR bodies.

I am not posting a formal review while current-head CI is red (per /pr-review §7.6). Please update the PR body through .agents/skills/pull-request/SKILL.md / pull-request-workflow.md §9: use a valid standalone Resolves #<delivered-leaf> line for the phase-1 deliverable, keep broader #13280 / #13158 as non-closing related context if they must remain open, and include the required template anchors. Re-request once the current head is green.

One premise note for the eventual review: the phase split itself is plausible. The prior-art sweep found the lane was already intentionally decomposed as projection → reveal → pin, so the body just needs close-target/template hygiene rather than pretending phase 1 closes the whole parent.

neo-gpt COMMENTED reviewed on Jun 21, 2026, 3:15 PM

CI deferral / review-slot disposition on current head e3ff2a616362bb2e16b910b84828e1ece2a3c4aa.

I am not doing the substantive #13770 review while the current head still has a failing required check: lint-pr-body failed in run 27904971496. The rest of CI is green, but the PR body template gate is the graph-ingestion precondition, so the next action is to fix the body lint and re-request review on the same or newer head.

This is a formal COMMENT review to dispose my stale review slot; it is not an approval and not a code verdict. I already left the detailed deferral note at https://github.com/neomjs/neo/pull/13770#issuecomment-4762060946.

github-actions commented on Jun 21, 2026, 3:15 PM

🚨 Agent PR Review Body Lint Violation

@neo-gpt — your review on PR #13770 [QUARANTINED_URL: github.com] does not match the pr-review template structure.

Required action: read .agents/skills/pr-review/SKILL.md BEFORE submitting a corrective re-review. The skill points at:

Cycle 1 (full template): .agents/skills/pr-review/assets/pr-review-template.md
Cycle N (follow-up template): .agents/skills/pr-review/assets/pr-review-followup-template.md

Do NOT compose a substitute template or hallucinate section headings. The validator checks more structural anchors than this comment names. The only reliable path to passing is reading the actual template file and following its structure.

Diagnostic hint: at least one recognized anchor like [ARCH_ALIGNMENT] is missing.

Visible anchors missing (full list)

[ARCH_ALIGNMENT]
[CONTENT_COMPLETENESS]
[EXECUTION_QUALITY]
[PRODUCTIVITY]
[IMPACT]
[COMPLEXITY]
[EFFORT_PROFILE]

_{This is the CI tool-boundary lint companion to PR #11494's MCP manage_pr_review validator.
Both layers point you at the same skill substrate. Closes #11495.}

neo-gpt COMMENTED reviewed on Jun 21, 2026, 3:17 PM

PR Review Summary

Status: Comment — CI deferral / review-slot disposition

🪜 Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

Decision: Comment
Rationale: This is not a substantive code review. Current head e3ff2a616362bb2e16b910b84828e1ece2a3c4aa still fails the required lint-pr-body check, so the review gate is blocked before diff scoring. I am leaving the formal review state as COMMENT to dispose the stale review request without producing a false approval or code verdict.

This supersedes my too-compact deferral review at https://github.com/neomjs/neo/pull/13770#pullrequestreview-4539745253, which correctly deferred but failed the agent review-body lint because it omitted the required template anchors.

🧭 Patch-Blind Premise Snapshot

Inputs Read Before Patch: Current #13770 PR metadata, exact head e3ff2a616362bb2e16b910b84828e1ece2a3c4aa, current check rollup, and the failing lint-pr-body run 27904971496.
Expected Solution Shape: Before a substantive PR review, an agent-authored PR body must pass the graph-ingestion template gate. The next correct shape is a body-lint fix and re-request, not a code verdict on a red head.
Patch Verdict: Not evaluated. The current failure is pre-review substrate hygiene: lint-pr-body is red, so substantive code review is deferred.

🕸️ Context & Graph Linking

Target Epic / Issue ID: #13280 / #13770 review lane
Related Graph Nodes: #13280, #13770

🔬 Depth Floor

Challenge: The PR cannot be reviewed as merge-ready while its body template check is red. Body lint is not cosmetic in this repo; it is the graph-ingestion contract for the PR surface.

Rhetorical-Drift Audit (per guide §7.4):

N/A for this deferral-only review. I did not evaluate substantive PR framing beyond the failing body-lint gate.

Findings: CI-deferral only; no code verdict.

🧠 Graph Ingestion Notes

[KB_GAP]: N/A.
[TOOLING_GAP]: My prior compact formal deferral failed lint-pr-review-body; this corrective review restores the required template anchors for the same deferral disposition.
[RETROSPECTIVE]: Agent review-slot disposal still has to use the PR review template anchors, even when the review is only a CI deferral.

N/A Audits — 🎯 📑 🪜 📡 🔗 🧪

N/A across listed dimensions: this is a formal deferral on a red body-lint gate, not a substantive code review.

📋 Required Actions

To proceed with substantive review, please address the following:

Fix the current-head lint-pr-body failure and re-request review on the fixed head.

📊 Evaluation Metrics

[ARCH_ALIGNMENT]: N/A - Not scored; substantive architecture review is deferred until the PR body gate passes.
[CONTENT_COMPLETENESS]: 40 - The only evaluated surface is the PR body/check surface, and lint-pr-body is currently failing.
[EXECUTION_QUALITY]: N/A - Not scored; code/test execution review is deferred behind the required body-lint gate.
[PRODUCTIVITY]: N/A - Not scored; this review only disposes a stale review request while preserving the red-head gate.
[IMPACT]: 50 - The review-slot cleanup matters for merge-gate clarity, but this is not a product-code verdict.
[COMPLEXITY]: 10 - The required next action is a PR body template correction.
[EFFORT_PROFILE]: Maintenance - Review queue hygiene and CI-gate clarity, not feature evaluation.

Re-request when the body-lint check is green.

neo-gpt APPROVED reviewed on Jun 21, 2026, 3:37 PM

PR Review Summary

Status: Approve

🪜 Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

Decision: Approve
Rationale: This PR now has the right phase boundary and close target: it ships the phase-1 projection branch only, closing #13771 while leaving #13280 open for reveal and pin. The diff stays inside DockLayoutAdapter, emits ordinary Neo config, avoids persisted runtime geometry, and covers the adapter behavior with focused unit tests.

Peer-Review Opening: The body repair fixed the graph shape. I reviewed the substantive adapter change at exact head e3ff2a616362bb2e16b910b84828e1ece2a3c4aa; no required actions remain.

🧭 Patch-Blind Premise Snapshot

Source this from the ticket, changed-file list, current dev source, sibling precedent, and source-of-authority substrate — not from the PR's own self-description as the primary premise.

Inputs Read Before Patch: #13771 leaf ticket, #13280 parent ticket, #13158 relationship context from the tickets, current learn/agentos/HarnessDockZoneModel.md, ADR 0020 pointer lines, changed-file list, current dev...HEAD diff, DockLayoutAdapter.mjs, and the focused adapter spec.
Expected Solution Shape: Phase 1 should add a committed-model projection branch: edge-zone autoHidden items become thin edge rails and are removed from the tab flow. It must not add reveal/pin runtime state, persisted DOM geometry, or a parallel pointer system; tests should pin rail projection, pinned-not-railed, center fail-safe, and existing adapter compatibility.
Patch Verdict: Matches. The adapter collects auto-hidden items per edge band, creates ordinary container/button rail configs with stable dockItemId/dockEdge metadata, drops railed items from their tab containers, and leaves center-zone autoHidden items visible as a fail-safe.

🕸️ Context & Graph Linking

Target Epic / Issue ID: Resolves #13771
Related Graph Nodes: #13280, #13158, #13254, #13256, ADR 0020, HarnessDockZoneModel.md

🔬 Depth Floor

Challenge OR documented search (per guide §7.1):

Challenge: The only residue is naming hygiene: the PR title and commit subject still suffix #13280, while the valid close target is now #13771. I am not blocking on this because the PR body has the correct Resolves #13771, #13280 is explicitly parented, and CI body lint passed. Avoid carrying that parent suffix into follow-up phase PR titles if those branches are still mutable.

Rhetorical-Drift Audit (per guide §7.4):

PR description: phase-1 framing matches the diff; reveal/pin remain out of scope.
Anchor & Echo summaries: adapter JSDoc names committed dock-zone projection and avoids claiming runtime reveal/pin behavior.
[RETROSPECTIVE] tag: N/A.
Linked anchors: #13771 and #13280 establish the phase split and guardrails; ADR 0020 is only a concept pointer, not overused as a detailed implementation spec.

Findings: Pass. Non-blocking title/commit parent-ticket residue noted above.

🧠 Graph Ingestion Notes

[KB_GAP]: N/A.
[TOOLING_GAP]: Earlier formal CI-deferral review on this PR failed lint-pr-review-body; corrected deferral passed, and this substantive review uses the full template.
[RETROSPECTIVE]: The projection/reveal/pin split is the right QT-parity decomposition: ship visible committed state first, keep hover/open geometry runtime-only, then wire pin via the existing semantic operation path.

🎯 Close-Target Audit

For every issue named as close-target, verify it does NOT carry the epic label:

Close-targets identified: #13771.
#13771 confirmed not epic-labeled (enhancement, ai).

Findings: Pass. #13280 remains a referenced parent, not a close target.

📑 Contract Completeness Audit

Originating ticket (or parent epic) contains a Contract Ledger matrix.
Implemented PR diff matches the Contract Ledger exactly (no drift).

Findings: Pass. The three #13771 rows are reflected mechanically: edge-zone rail projection, tab-flow removal/fallback, and rail-tab metadata with no DOMRect/hover/open geometry.

🪜 Evidence Audit

PR body contains an Evidence: declaration line.
Achieved evidence is appropriate for the phase-1 close target; visual verification is explicitly listed as a later phase/post-merge validation item.
Evidence-class collapse check: this review does not promote L2 unit proof into a visual L3 claim.

Findings: Pass. This PR ships model-to-config projection, not the visual reveal/pin runtime.

N/A Audits — 📡 🔗

N/A across listed dimensions: this PR does not touch MCP OpenAPI/tool descriptions, skills, workflow conventions, or turn-loaded substrate.

🧪 Test-Execution & Location Audit

Branch checked out locally at exact head e3ff2a616362bb2e16b910b84828e1ece2a3c4aa.
Canonical Location: changed test remains in test/playwright/unit/dashboard/DockLayoutAdapter.spec.mjs.
If a test file changed: ran the specific test file.
If code changed: verified syntax checks and current-head GitHub checks.

Findings: Tests pass.

Verification run:

node --check src/dashboard/DockLayoutAdapter.mjs
node --check test/playwright/unit/dashboard/DockLayoutAdapter.spec.mjs
npm run test-unit -- test/playwright/unit/dashboard/DockLayoutAdapter.spec.mjs
# 12 passed

Current-head GitHub checks are green, including lint-pr-body, unit, integration, lint, and CodeQL.

📋 Required Actions

No required actions — eligible for human merge.

📊 Evaluation Metrics

[ARCH_ALIGNMENT]: 92 - Correct phase-1 projection branch, JSON-first, no parallel pointer system.
[CONTENT_COMPLETENESS]: 90 - Contract ledger, PR body, and adapter JSDoc align; only non-blocking parent-ticket title residue remains.
[EXECUTION_QUALITY]: 91 - Focused adapter spec passes 12/12 and current-head CI is green.
[PRODUCTIVITY]: 88 - Converts an invisible committed model state into a visible rail without pulling in reveal/pin scope.
[IMPACT]: 82 - Important QT-parity UX foundation; full UX value arrives after reveal and pin phases.
[COMPLEXITY]: 48 - Moderate adapter projection logic, kept testable and contained.
[EFFORT_PROFILE]: Focused Fix - A bounded consumer slice over an already-merged model seam.

Eligible for human merge from my side.