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Compare Imla Android renderer screenshots with repo-local metrics and visual diff artifacts. Use when visual verification needs screenshot comparison, noise-tolerant renderer diffs, blur/mask/clip regression checks, or threshold-gated image comparison.
기본적으로 소스를 먼저 확인하는 Prompt가 선택됩니다. 직접 명령으로 전환하거나 로컬 사본을 다운로드할 수도 있습니다.
설치 여부를 결정하기 전에 SKILL.md와 SkillsMP에 표시된 보조 파일을 읽어 보세요.
SOC 직업 분류 기준
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
직접 명령은 검토 Prompt를 거치지 않습니다. 실행하기 전에 소스를 확인하세요.
npx skills add https://github.com/desugar-64/imla --skill imla-screenshot-diff명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.
로컬 사본을 원하시나요? SkillsMP에서 현재 제공할 수 있는 파일을 다운로드하세요.
SKILL.md 표시 중
Capture Imla Android screenshots through the repo-local half-size ADB screenshot wrapper to reduce visual-inspection token cost while preserving enough detail for renderer checks.
Run Imla ADB commands through the repo-local timeout wrapper so physical-device installs, launches, input, screenshots, package-manager calls, and diagnostics fail fast instead of hanging.
Capture and analyze Imla Android renderer smoke traces with the repo-local Perfetto config, SQL queries, and Android Performance Analyzer workflow.
| name | imla_screenshot_diff |
| description | Compare Imla Android renderer screenshots with repo-local metrics and visual diff artifacts. Use when visual verification needs screenshot comparison, noise-tolerant renderer diffs, blur/mask/clip regression checks, or threshold-gated image comparison. |
Use this skill when screenshots need more than manual inspection, especially after renderer, blur, mask, clip, geometry, or bottom sheet changes.
The repo-local tool is:
tools/screenshot-diff <reference.png> <candidate.png> [options]
It compares two same-size screenshots, prints metrics, and writes a report plus visual artifacts. The extensionless shell wrapper is the stable entrypoint; it creates .codex/screenshot-diff-venv and installs Pillow if needed. The .py file is the implementation detail.
The output directory contains:
report.md and report.jsonreference.png and candidate.pngdiff.pngdiff-amplified.pngthreshold-mask.pngcontact-sheet.pngBy default artifacts go to diagnostics/screenshot-diff/<generated-name>/. Pass --out <dir> for a specific destination.
Compare two screenshots and generate artifacts:
tools/screenshot-diff diagnostics/screenshots/before.png diagnostics/screenshots/after.png
Use noise-tolerant comparison for blur-heavy output:
tools/screenshot-diff before.png after.png --pixel-threshold 8 --smooth-radius 1.0
Gate a regression check:
tools/screenshot-diff before.png after.png --pixel-threshold 8 --fail-changed-ratio 0.02
Compare only a region:
tools/screenshot-diff before.png after.png --crop 0,900,2076,1800 --out .codex/screenshot-diff/bottom-sheet
changed_ratio: fraction of pixels whose max-channel delta is above --pixel-threshold.MAE / RMSE: average and squared channel error across the image.max_delta, p95, p99: high-end pixel delta distribution.ssim_luma_global: coarse luminance similarity score.--pixel-threshold 8 --smooth-radius 1.0 for noisy blur comparisons.contact-sheet.png first; use threshold-mask.png to locate structural changes.