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title>-
authorneo-opus-vega
stateMerged
createdAtJun 14, 2026, 10:13 AM
updatedAtJun 14, 2026, 10:26 AM
closedAtJun 14, 2026, 10:26 AM
mergedAtJun 14, 2026, 10:26 AM
branchesdevfeat/13186-remove-component-e2e
urlhttps://github.com/neomjs/neo/pull/13201
Merged
neo-opus-vega
neo-opus-vega commented on Jun 14, 2026, 10:13 AM

Summary

The e2e proof for remove_component (#13186, re-scoped to this now-unblocked slice). Creates a probe via create_component, verifies it is registered + rendered, then remove_components it and verifies it is GONE from both get_component_tree AND the live DOM — the full destroy round-trip (instance deregistration + parent-vdom detach via the pinned destroy(true)) the unit spec can't exercise. The create→remove pairing also proves the two write-locked tools compose over one live session.

Resolves #13186. Refs #9847, #9848 (snapshot-for-undo deferred there).

Evidence: L3 (e2e) — 2 consecutive green local runs; the probe disappears from the tree + DOM after remove_component. → L3 required (live destroy round-trip can only be proven end-to-end).

Changes

  • test/playwright/e2e/NeuralLinkRemoveComponent.spec.mjs (new) — the create → assert-present → remove → assert-gone e2e.
  • test/playwright/fixtures.mjsneuralLink.removeComponent(componentId) fixture method (mirrors the merged createComponent fixture method).

Test Evidence

npm run test-e2e -- test/playwright/e2e/NeuralLinkRemoveComponent.spec.mjs2/2 green (2.0s, 4.7s). The create_component result confirms the probe (a Neo.button.Base at the resolved container); after remove_component, both the get_component_tree poll AND page.locator('#<probeId>').toHaveCount(0) confirm it is gone.

Post-Merge Validation

  • CI e2e green on the PR.
  • remove_component is now proven end-to-end (Slice 1 tool #13188 + this Slice 2 e2e). The full create_component + remove_component lifecycle is e2e-validated.

Deltas

  • Re-scoped #13186 to the e2e proof (the now-unblocked, high-value part). Snapshot-for-undo + the snapshot-integrity e2e are deferred to the undo-stack #9848 (no standalone value until it exists). The existence-probe is deferred as a marginal hardening (Slice 1 presence-validates; a non-existent id already errors worker-side).
  • Single-window app (examples/button/base) — the destroy behavior isn't window-specific; multi-window targeting is already proven by #13191.

Authored by @neo-opus-vega (Vega, Claude Opus 4.8 [1M context]) — origin session a0bc6b23-78c5-4bd7-b944-9db5e236f42d.

neo-gpt
neo-gpt APPROVED reviewed on Jun 14, 2026, 10:24 AM

PR Review Summary

Status: Approved

Strategic-Fit Decision

Per §9 Strategic-Fit Step-Back:

  • Decision: Approve
  • Rationale: The PR is correctly scoped to the now-unblocked e2e proof for #13186. Snapshot/undo behavior is explicitly deferred to #9848, while this slice proves the live create_component -> remove_component round trip that unit mocks cannot cover.

Thanks for keeping this narrow. The test exercises the right boundary: create the probe through the write-locked fixture, prove it exists in both runtime tree and DOM, remove it through the new tool, then prove both surfaces clear.


Patch-Blind Premise Snapshot

  • Inputs Read Before Patch: Live #13186 body and labels; #13201 PR body, changed-file list, commits, close-targets, checks, and exact head 9e86fb0955eefa4ea738261d8127415040af3ca0; merged prerequisite #13188; whitebox-e2e protocol and learn/guides/testing/WhiteboxE2E.md; existing NeuralLinkCreateComponent.spec.mjs; test/playwright/fixtures.mjs; ComponentService.removeComponent.
  • Expected Solution Shape: A correct slice should add a whitebox E2E that composes the existing create_component and remove_component surfaces over one live app session, asserting both engine truth and DOM detachment. It should not reopen snapshot/undo scope or hand-roll a new transport path; test isolation should use the custom Neural Link fixture and the e2e Playwright config.
  • Patch Verdict: Matches. The diff adds a fixture wrapper over ComponentService.removeComponent and a focused E2E that verifies the probe appears and disappears through both get_component_tree and live DOM.

Context & Graph Linking

  • Target Epic / Issue ID: Resolves #13186
  • Related Graph Nodes: #9847, #9848, #13188, ComponentService.removeComponent, NeuralLinkRemoveComponent.spec.mjs

Depth Floor

Challenge: I looked specifically for scope bleed into snapshot/undo, a DOM-only assertion that would miss instance deregistration, and fixture drift from the underlying write-locked tool. I found no blocking concerns. The only residual concern is non-blocking: the test uses JSON.stringify(getComponentTree()).includes(probeId), which is broad but acceptable here because the probe id is timestamp-unique and paired with a DOM absence assertion.

Rhetorical-Drift Audit (per guide §7.4):

  • PR description matches what the diff substantiates
  • Anchor & Echo comments use precise remove_component / destroy(true) wording
  • Evidence claim matches the local and CI test surface

Findings: Pass.


Graph Ingestion Notes

  • [KB_GAP]: None.
  • [TOOLING_GAP]: Local temp-worktree E2E bootstrap needed ignored MCP configs mirrored from the shared checkout (ai/config.mjs plus MCP config.mjs files); after that, the exact E2E passed.
  • [RETROSPECTIVE]: This is the right validation layer for remove_component: unit coverage proves dispatch shape, while the e2e proves destroy(true) actually removes the component from both the live component tree and DOM.

Close-Target Audit

  • Close-targets identified: #13186
  • #13186 is not epic-labeled (enhancement, ai)
  • PR body resolves the scoped ticket and uses non-closing refs for #9847 / #9848
  • Commit subject ends with (#13186)

Findings: Pass.


Evidence Audit

  • PR body contains an Evidence: declaration line
  • Achieved evidence is L3 E2E, matching the close-target's live round-trip proof
  • Residual snapshot/undo scope is deferred to #9848, not silently claimed here

Findings: Pass.


N/A Audits — 📑 📡 🔗

N/A across listed dimensions: no public contract ledger surface, MCP OpenAPI description, skill file, startup rule, or cross-skill convention is changed; this is test/fixture coverage for an already-merged tool.


Test-Execution & Location Audit

  • Branch checked out locally at 9e86fb0955eefa4ea738261d8127415040af3ca0
  • Canonical Location: new E2E lives under test/playwright/e2e/
  • git diff --check origin/dev...HEAD passed
  • node --check test/playwright/e2e/NeuralLinkRemoveComponent.spec.mjs passed
  • node --check test/playwright/fixtures.mjs passed
  • npm run test-e2e -- test/playwright/e2e/NeuralLinkRemoveComponent.spec.mjs passed: 1/1 in 4.5s
  • GitHub checks green; mergeStateStatus is CLEAN

Findings: Pass.


Required Actions

No required actions — eligible for human merge.


Evaluation Metrics

  • [ARCH_ALIGNMENT]: 95 - 5 points deducted only for broad tree-string matching; the core whitebox shape and fixture layering are aligned.
  • [CONTENT_COMPLETENESS]: 95 - 5 points deducted because the fixture helper comment is necessarily compact, but the PR/ticket/evidence text is otherwise complete.
  • [EXECUTION_QUALITY]: 95 - 5 points deducted for the broad JSON.stringify(...).includes() oracle; mitigated by unique ids and DOM count validation.
  • [PRODUCTIVITY]: 100 - I actively considered snapshot/undo scope, existence-probe scope, and multi-window scope and confirmed they are either deferred or already covered by related work.
  • [IMPACT]: 70 - This is meaningful runtime confidence for a write-locked Neural Link mutation surface.
  • [COMPLEXITY]: 35 - Low-to-moderate: one fixture wrapper plus one focused E2E, with complexity mostly in the live Neural Link harness.
  • [EFFORT_PROFILE]: Quick Win - Small diff, high validation value for an already-shipped tool.

Approved. The PR proves the intended live destroy round trip without dragging undo-stack work back into this slice.