webview-footguns
webview-footguns is a skill in maxrave-dev/kotlin-footguns, last changed 15 Oct 2026. It can run shell commands. Our pattern check flagged nothing at commit dfcbe32 on 27 Oct 2026.
Pattern check: nothing flagged · commit dfcbe32 · 27 Oct 2026
InstallWebView traps across device classes: startup that freezes low-RAM phones, a killed renderer that takes the app with it, devices with no usable provider, AndroidView lifecycle and cookies. Use when a web screen freezes, vanishes or crashes only on some devices.
- Licence
- GPL 3.0
- Repo stars
- 1.7k
- Folder last changed
- 15 Oct 2026 (opens in a new tab)
- Publisher
- maxrave-dev
- Files
- 4 files
- Checked
- dfcbe32 (opens in a new tab) · 27 Oct 2026
Install
Each tab says whether it installs commit dfcbe32, the one we checked, or the latest version.
No tab for your agent? Use Any agent for OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity, and Claude Code for Cline. Kiro needs the folder copied by hand.
Pinned to commit dfcbe32, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
mkdir -p .claude/skills &&
mkdir .claude/skills/webview-footguns &&
cp -R "$tmp"/skills/webview-footguns/. .claude/skills/webview-footguns/ &&
rm -rf "$tmp"If Claude Code was already running and this created the skills folder, run /reload-skills.
Or install the kotlin-footguns plugin it ships in. Installs the latest version, not the one we checked. Installs everything in the plugin, including any hooks, MCP servers and scripts our check doesn't cover.
claude plugin marketplace add maxrave-dev/kotlin-footguns --scope project &&
claude plugin install kotlin-footguns@maxrave --scope projectPinned to commit dfcbe32, the one we checked.
Skills in the Claude apps belong to your account rather than to a project.
Make webview-footguns.zip, with the skill folder at the top level:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
out="$(mktemp -d)" &&
cp -R "$tmp"/skills/webview-footguns "$out"/webview-footguns &&
(cd "$out" && zip -qr - webview-footguns) > webview-footguns.zip &&
rm -rf "$tmp" "$out"In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose webview-footguns.zip.
On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.
Pinned to commit dfcbe32, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
mkdir -p .agents/skills &&
mkdir .agents/skills/webview-footguns &&
cp -R "$tmp"/skills/webview-footguns/. .agents/skills/webview-footguns/ &&
rm -rf "$tmp"Codex picks up new skills on its own; restart it if this one does not appear.
Pinned to commit dfcbe32, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
mkdir -p .cursor/skills &&
mkdir .cursor/skills/webview-footguns &&
cp -R "$tmp"/skills/webview-footguns/. .cursor/skills/webview-footguns/ &&
rm -rf "$tmp"Pinned to commit dfcbe32, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
mkdir -p .github/skills &&
mkdir .github/skills/webview-footguns &&
cp -R "$tmp"/skills/webview-footguns/. .github/skills/webview-footguns/ &&
rm -rf "$tmp"In a running Copilot CLI session, run /skills reload.
Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.
gh skill install maxrave-dev/kotlin-footguns skills/webview-footguns/SKILL.md@dfcbe32081705bbe2aeefef830b9adeb67bec438 --agent github-copilot --scope projectPinned to commit dfcbe32, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
mkdir -p .gemini/skills &&
mkdir .gemini/skills/webview-footguns &&
cp -R "$tmp"/skills/webview-footguns/. .gemini/skills/webview-footguns/ &&
rm -rf "$tmp"In a running session, run /skills reload.
Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.
gemini skills install https://github.com/maxrave-dev/kotlin-footguns.git --path skills/webview-footguns --scope workspacePinned to commit dfcbe32, the one we checked.
Codex, Cursor, Copilot, VS Code, Gemini CLI, OpenCode, Goose, Amp and Zed all read .agents/skills; Claude Code and Kiro list only their own folders.
From your project's root folder:
tmp="$(mktemp -d)" &&
git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/maxrave-dev/kotlin-footguns.git "$tmp" &&
git -C "$tmp" fetch -q --depth 1 origin dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
git -C "$tmp" sparse-checkout set -- skills/webview-footguns &&
git -C "$tmp" checkout -q dfcbe32081705bbe2aeefef830b9adeb67bec438 &&
mkdir -p .agents/skills &&
mkdir .agents/skills/webview-footguns &&
cp -R "$tmp"/skills/webview-footguns/. .agents/skills/webview-footguns/ &&
rm -rf "$tmp"Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.
npx skills@1.7.4 add maxrave-dev/kotlin-footguns --skill webview-footgunsWhat it can touch
From the files and frontmatter at commit dfcbe32. This is how much a skill can do, not whether it is risky.
What it can touch: Scripts or outside hosts
Runs shell commands
Its instructions or files give the agent commands to run on your computer.
Pattern check
Pattern check: nothing flagged · commit dfcbe32 · 27 Oct 2026
We checked every text file in this skill, at commit dfcbe32 on 27 Oct 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.
Format check
Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.
Agent Skills specPasses
The open format from agentskills.io, held to what the strictest agents enforce, so one folder loads everywhere.
- Note
There is no license field, so readers can't tell whether they may reuse the skill. O2
Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.
- Note
Reference files over 100 lines with no table of contents at the top: references/webview-in-androidview-lifecycle.md (141 lines), references/webview-renderer-gone-takes-the-app.md (128 lines) and references/webview-startup-off-the-main-thread.md (150 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
Claude CodePasses
Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.
- Note
Reference files over 100 lines with no table of contents at the top: references/webview-in-androidview-lifecycle.md (141 lines), references/webview-renderer-gone-takes-the-app.md (128 lines) and references/webview-startup-off-the-main-thread.md (150 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
Claude apps & API uploadPasses
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Note
The description is 260 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4
Fix: If the claude.ai upload refuses it, trim the description to 200 characters.
- Note
Reference files over 100 lines with no table of contents at the top: references/webview-in-androidview-lifecycle.md (141 lines), references/webview-renderer-gone-takes-the-app.md (128 lines) and references/webview-startup-off-the-main-thread.md (150 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
- OpenAI (Codex & API)Passes
- VS Code & CopilotPasses
SKILL.md
We only show SKILL.md text here when its licence clearly allows it.
Read SKILL.md on GitHub (opens in a new tab)Files
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