emulating-device
Applies device and network emulation through the cdp MCP server.
Skill by tmc
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/tmc-emulating-device
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: backend, productivity, agent-building
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/emulating-device
What's inside
- Skill name
emulating-device- Description
- Applies device and network emulation through the cdp MCP server. Use when the task involves viewport changes, mobile presets, throttling, offline mode, geolocation, or request header overrides.
- License
- MIT
- Instructions
- 24 lines in SKILL.md · view on GitHub
Files (2)
- SKILL.md
- device-emulation.md · references/
SKILL.md (first lines)
# Emulating Device Use this skill when browser behavior depends on device shape, network conditions, or browser identity. ## Quick start - Use `set_device` for common mobile, tablet, and desktop presets - Use `set_viewport`, `set_user_agent`, and `set_extra_headers` for custom overrides - Use `set_throttling`, `set_offline`, and `set_geolocation` for network and environment changes ## Use this skill for - reproducing mobile layout bugs - testing throttled or offline behavior - changing browser identity or request headers - pairing emulation with screenshots or PDF capture ## Read next - Tool details and available presets: [references/device-emulation.md](references/device-emulation.md) - Script format reference: [../writing-cdp-scripts/references/script-format.md](../writing-cdp-scripts/references/script-format.md) - Visual capture after emulation: [../capturing-page-artifacts/SKILL.md](../capturing-page-artifacts/SKILL.md)
From tmc/cdp, MIT.
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No description from the publisher yet.
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Signals
- Stars
- 5
- Forks
- 1
- Open issues
- 0
- Last commit (this folder)
- Sep 22, 2026 (1 month ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/tmc/cdp
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Captures screenshots, PDFs, and visual artifacts from pages driven by cdp scripts or the interactive CLI.
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debugging-page-javascript
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Executes JavaScript in browser pages, captures console output, and debugs page-side behavior with cdp.
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Cite this page
emulating-device skill. Agent Mart. https://agentmart.dev/skills/tmc-emulating-device (last updated 2026-10-24)