electron-webview-debugging

electron-webview-debugging is a skill for Claude Code, Codex from LeekJay/claude-skills-plugin. It costs 30 tokens per session (2,073 once invoked), scanned A, original, MIT.

A troubleshooting guide for Electron's WebView tag, which displays web content inside a desktop application.

In plain words
What is it for?
Use it to debug injected scripts, monitor events, work with DevTools, investigate IPC communication, and review WebView loading, preload, security, or performance problems.
Why use it?
It helps investigate blank screens, crashes, slow behavior, failed script injection, event problems, and communication issues between application processes and the WebView.

Skill for Claude CodeCodex

Part of the electron-webview-debugging plugin — 1 skill, 1 agent shipped together

Install

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.

agentmods
npx agentmods add skills/leekjay/claude-skills-plugin/electron-webview-debugging
Any agent
npx skills add LeekJay/claude-skills-plugin --skill electron-webview-debugging
Clone the repo
git clone --depth 1 https://github.com/LeekJay/claude-skills-plugin

Made for: Claude Code, Codex.

Or install electron-webview-debugging, the plugin that ships this one along with the rest of its 1 skill, 1 agent.

Wrote 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.

agentmods badge for electron-webview-debugging

README.md
[![agentmods](https://agentmods.dev/badge/skills/leekjay/claude-skills-plugin/electron-webview-debugging.svg)](https://agentmods.dev/skills/leekjay/claude-skills-plugin/electron-webview-debugging)
Your own site
<a href="https://agentmods.dev/skills/leekjay/claude-skills-plugin/electron-webview-debugging"><img src="https://agentmods.dev/badge/skills/leekjay/claude-skills-plugin/electron-webview-debugging.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,073 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00030 $0.02073
Opus 5 $0.00015 $0.01037
Sonnet 5 $0.00006 $0.00415
Haiku 4.5 $0.00003 $0.00207

Measured 4d ago against content hash eaa739c7794c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

electron-webview-debugging scanned grade A with 0 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 4d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/electron-webview-debugging/skills/electron-webview-debugging/SKILL.md · 260 lines

How it starts

The opening of the file, as written. The whole thing — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Electron WebView Tag Debugging Skill

Decision Framework

Default behavior: For WebView debugging tasks, prefer Sub-Agent mode for systematic troubleshooting.

🔴 Mandatory Sub-Agent Triggers (ANY ONE triggers delegation)

  1. Unknown cause: WebView not working and cause is unclear (blank screen, crash, not loading)
  2. Multi-aspect debugging: Issue involves 2+ areas (IPC + events, preload + security, etc.)
  3. Security configuration: Any security-related WebView configuration review
  4. IPC communication issues: Debugging communication between main process and WebView
  5. Systematic investigation: Need to check configuration, events, and scripts together
  6. Crash/failure analysis: WebView crashes, freezes, or fails to load
  7. Preload script issues: Script injection not working, context isolation problems
  8. Performance debugging: WebView running slow, memory issues

🟢 Main Conversation Handling (ALL conditions must be met)

  1. Single aspect: Only checking one specific thing (e.g., "is this attribute correct?")
  2. Quick answer: Simple questions about WebView API or configuration
  3. Known fix: Already know what's wrong, just need syntax/usage help
  4. Documentation lookup: Just need to check how to use a specific API

Decision Flow

Check for ANY 🔴 mandatory trigger?
  ├─ YES → ✅ USE SUB-AGENT MODE immediately
  │         subagent_type="electron-webview-debugging:electron-webview-debugging"
  └─ NO → Check if ALL 🟢 simple conditions are met?
           ├─ YES → Handle in main conversation
           └─ NO → ✅ USE SUB-AGENT MODE (default behavior)

Quick Reference Examples

User Description Trigger Signal Decision
"WebView shows blank screen" 🔴 Unknown cause Sub-Agent
"How do I use executeJavaScript?" 🟢 Documentation lookup Main conversation
"WebView crashes when loading" 🔴 Crash analysis Sub-Agent
"Is this webpreferences correct?" 🟢 Quick answer Main conversation
"IPC messages not received" 🔴 IPC communication issues Sub-Agent
"What events can I listen to?" 🟢 Documentation lookup Main conversation
"Preload script not executing" 🔴 Preload script issues Sub-Agent
"Review WebView security config" 🔴 Security configuration Sub-Agent

Read the full file on GitHub · 260 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 4d ago First seen · 260 lines · 30 tokens per session scan A eaa739c7794c

Subscribe to this mod's changes

electron-webview-debugging is a skill published in the GitHub repository LeekJay/claude-skills-plugin (4 stars, last pushed 8mo ago), licensed MIT. It adds 30 tokens to every session and 2,073 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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