⚡ Bolt: [성능 개선] 오프스크린 섹션 렌더링 최적화#49
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- `.section` 요소에 `content-visibility: auto` 속성을 적용하여 화면 밖에 있는 콘텐츠의 렌더링을 지연시킵니다. - 브라우저의 레이아웃 계산 오류로 인한 스크롤 튀는 현상(scrollbar jumping)을 방지하기 위해 `contain-intrinsic-size`에 적절한 기본 높이(600px)를 지정했습니다.
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OpenCode Review Overview
Pull request overviewOpenCode reviewed the current-head bounded evidence and found no blocking issues. FindingsNo blocking findings. SummaryApproval sufficiency: bounded evidence supplied affirmative approval evidence for changed files, coverage/docstring posture, risk surfaces, and current-head verification; approval is not based merely on the absence of known blockers.
Changed-File Evidence Mapflowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file (2 files)"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file (2 files)"]
R1 --> V1["required checks"]
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Pull request overview
OpenCode reviewed the current-head bounded evidence and found no blocking issues.
Findings
No blocking findings.
Summary
Approval sufficiency: bounded evidence supplied affirmative approval evidence for changed files, coverage/docstring posture, risk surfaces, and current-head verification; approval is not based merely on the absence of known blockers.
Verification posture: CodeGraph evidence was initialized and bounded current-head evidence reviewed for changed-file evidence including .jules/bolt.md, styles.css.
Linter/static: workflow/static review evidence is bounded by the current-head GitHub Checks gate and changed-file evidence.
TDD/regression: coverage execution evidence and focused changed hunks were reviewed from bounded-review-evidence.md.
Coverage: coverage execution evidence reports test coverage as not applicable because no supported changed source files or package manifests were found.
Docstring coverage: coverage execution evidence reports docstring coverage as not applicable because no supported changed source files or package manifests were found.
DAG: CodeGraph/source-backed behavior map connects .jules/bolt.md to the affected review, runtime, or workflow path and required checks.
PoC/execution: coverage-evidence job executed on the current head and reported PASS.
DDD/domain: workflow and repository-governance invariants were reviewed against changed files in bounded evidence.
CDD/context: CodeGraph evidence, changed-file history, and focused hunks were reviewed from bounded-review-evidence.md.
Similar issues: changed-file history evidence was reviewed for comparable local precedents.
Claim/concept check: bounded evidence, repository source, current-head workflow evidence, and, where numeric, scientific, statistical, or literature-backed claims are affected, original-paper/formula evidence and parameter-recovery expectations were used for claims.
Standards search: standards and external-source checks are delegated to configured OpenCode web_search/Context7/DeepWiki sources when applicable; no evidence-backed standards blocker is present in bounded evidence.
Compatibility/convention: changed workflow/script conventions, object naming, and reserved-word safety for schema/API/config/code surfaces were checked in bounded evidence.
Breaking-change/backcompat: deployment evidence and changed-file history were checked for backward-compatibility risk.
Performance: changed surfaces were checked for performance risk in bounded evidence.
Developer experience: changed automation, review, test, setup, and maintenance surfaces were checked for helpful or obstructive DX impact in bounded evidence.
User experience: connected user, operator, API, CLI, documentation, review-comment, status-check, rendering, and workflow-reader behavior was checked for contradictions against code, docs, and tests in bounded evidence.
Visual/DOM: Playwright visual, DOM locator, ARIA snapshot, console, and responsive evidence were checked when a web UI surface was present; for non-web surfaces, API/CLI/log/docs/workflow interaction evidence was reviewed instead.
Accessibility/i18n: accessibility, localization, and human-readable text surfaces were checked where UI, CLI, API message, docs, logs, or review text changed.
Supply-chain/license: dependency, package, model, container, and external-tool changes were checked in bounded evidence.
Packaging: package, build, test, lint, and security contracts were checked in bounded evidence.
Security/privacy: workflow-token, review-gate, and repository-automation security/privacy boundaries were checked in bounded evidence.
- Result: APPROVE
- Reason: Safe performance optimization with proper CSS containment
- Head SHA:
8b88984765d0cf75044c030960f7ad50939b6f23 - Workflow run: 28708499020
- Workflow attempt: 1
Changed-File Evidence Map
flowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file (2 files)"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file (2 files)"]
R1 --> V1["required checks"]
2 participants
💡 What (무엇을 변경했는가)
긴 콘텐츠가 포함된
.section요소들에 CSScontent-visibility: auto속성을 적용하고, 스크롤바가 튀는 현상을 방지하기 위해contain-intrinsic-size: 600px;(그리고 최신 브라우저를 위한auto 600px) 대체값을 추가했습니다.🎯 Why (왜 변경했는가)
랜딩 페이지에는 화면 밖으로 벗어나는 긴 섹션들이 다수 존재합니다. 기본적으로 브라우저는 페이지 로드 시 화면에 보이지 않는 요소들까지 모두 렌더링(Layout 및 Paint)을 수행하므로, 메인 스레드를 점유하여 초기 렌더링 속도와 상호작용(TBT, Time to Interactive)이 저하될 수 있습니다. 이를 지연시켜 성능을 향상시키고자 했습니다.
📊 Impact (어떤 영향을 미치는가)
contain-intrinsic-size를 제공함으로써 레이아웃 시프트와 스크롤바 점핑(scrollbar jumping) 문제를 예방했습니다.🔬 Measurement (어떻게 측정/검증하는가)
PR created automatically by Jules for task 12572118985387907927 started by @seonghobae