Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add skydoves/android-testing-skills --skill capturing-preview-screenshots-in-cigit clone --depth 1 https://github.com/skydoves/android-testing-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/skydoves/android-testing-skills/capturing-preview-screenshots-in-ci)<a href="https://agentmods.dev/skills/skydoves/android-testing-skills/capturing-preview-screenshots-in-ci"><img src="https://agentmods.dev/badge/skills/skydoves/android-testing-skills/capturing-preview-screenshots-in-ci/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/skydoves/android-testing-skills/capturing-preview-screenshots-in-ci"><img src="https://agentmods.dev/badge/skills/skydoves/android-testing-skills/capturing-preview-screenshots-in-ci.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00250 | $0.04402 |
| Opus 5 | $0.00125 | $0.02201 |
| Sonnet 5 | $0.00050 | $0.00880 |
| Haiku 4.5 | $0.00025 | $0.00440 |
Grade D, and why
capturing-preview-screenshots-in-ci scanned grade D with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
- run: rm -rf .hotswan/preview-captures # so a deleted preview leaves the catalog How it starts
The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Capturing Preview Screenshots In CI — A Device-Rendered Catalog On Every Commit
A @Preview lives in one engineer's IDE, behind a recompile, on a renderer (layoutlib) that is not the device. This skill turns it into a shared artifact: render every @Preview on a real device/emulator (real ART, real fonts, real image loading, system bars), collect the PNGs into a searchable HTML catalog, regenerate it from CI on every commit, and serve it from GitHub Pages. The tool is Compose HotSwan's Gradle plugin. For structuring previews so this is worth doing, see ../developing-with-compose-previews/SKILL.md.
When to use this skill
- The user wants
./gradlew captureAllPreviews— render all@Previews and produce an HTML catalog. - The user wants to screenshot one preview from a shell script over ADB without the IDE.
- The user wants a preview catalog deployed to GitHub Pages so designers/QA/PMs can browse components at a URL.
- A preview that loads a network image or settles an animation is captured half-painted — needs render-delay tuning.
- The user asks "Paparazzi vs Roborazzi vs device screenshots — which, and can I run both?".
When NOT to use this skill
- The user wants pixel-diff golden-image regression gates (store a reference PNG, fail on diff).
captureAllPreviewsdoes not diff; that is Paparazzi's/Roborazzi's job. Run both if you need both — see the comparison table below. - The user wants behavioral assertions on a Compose UI (
ComposeTestRule, finders) — use../../setup/choosing-test-rule-vs-runtest/SKILL.mdand thecompose/finders/skills. - The user is fixing why a preview won't render or keeps going "out of date" — that is preview structure; use
../developing-with-compose-previews/SKILL.md. - The user wants Compose live hot reload (edit code, see it on a running device) — that is the HotSwan IDE plugin's reload feature, a different surface from screenshot capture.
Prerequisites
- A connected device or running emulator with the app installed and launched at least once in the current run —
captureAllPreviewsdrives the running app's process so previews render with the real dependency graph (Hilt/Koin, network, DB) and need no mocks. - The HotSwan Gradle compiler plugin and the preview library (versions from the project's catalog;
1.3.2at time of writing):
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 273 lines · 250 tokens per session scan D 81fc76b7f43d
capturing-preview-screenshots-in-ci is a skill published in the GitHub repository skydoves/android-testing-skills (319 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 250 tokens to every session and 4,402 once invoked, about $0.0013 per session on Opus 5. A static security scan graded it D with 2 findings (asks for root, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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