React Native CDP Bridge Agent Skill

Streams React Native 0.77+ console logs and network activity to the terminal using Chrome DevTools Protocol WebSockets.

Context cost
4k tokensestimated from the bundle, loaded when it triggers
Bundle
4 files · 24.3 kB1 script among them — read before you run
Licence
not declarednone named by its author
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

React Native 0.77+에서 제거된 Metro 로그 포워딩을 CDP WebSocket으로 대체하는 런북. console.log 출력 복구, 네트워크 요청 모니터링, InspectorProxy 타겟 디스커버리, 브릿지 스크립트를 통한 터미널 스트리밍을 다룬다. release 빌드 크래시(Hermes minify로 스택이 안 풀릴 때)를 debug+Metro로 전환해 CDP/LogBox로 정확한 에러를 잡는 셋업(디버그 빌드·adb reverse·권한 우회·타겟 선택)과 실기기 debug 빌드를 막는 툴체인 함정(Gradle·JBR, CocoaPods·Ruby, 좀비 캐시 경로)도 포함. "console.log가 안 보여", "Metro 로그가 안 나와", "RN 로그가 안 찍혀", "RN console.log not showing", "Metro logs missing", "CDP 연결", "DevTools 연결 안 됨", "RN network debugging", "RN 디버깅 런북", "RN 크래시 원인 분석", "release 크래시가 안 잡혀", "debug 빌드로 에러 확인", "RedBox 에러 캡처", "화면 진입하면 죽어", "실기기…

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

mobilereact

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md8.7 kB · preview
--- name: rn-cdp-bridge ---
20# RN Metro CDP
21
22RN 0.77+에서 Metro console.log 스트리밍이 제거되었다. CDP WebSocket을 통해 console 출력과 네트워크 요청을 터미널로 브릿지하는 런북.
23
24> **공식 근거**: "log forwarding via Metro, originally deprecated in 0.76, is removed in 0.77. We are moving exclusively to the Chrome DevTools Protocol (CDP)." — [React Native 0.77 Blog](https://reactnative.dev/blog/2025/01/21/version-0.77)
25
26## 언제 이 스킬을 쓰는가
27
28| 증상 | 이 스킬? | 대안 |
29|------|----------|------|
30| console.log가 Metro 터미널에 안 보임 (RN 0.77+) | **O** | — |
31| 네트워크 요청을 터미널에서 모니터링하고 싶음 | **O** | — |
32| release 빌드에서만 크래시, 스택이 minify돼 안 풀림 | **O** (debug+Metro 전환) | — |
33| 화면 진입/네비게이션이 silent하게 무동작 (크래시 아님) | **O** (CDP가 console.error 캡처) | — |
34| DevTools GUI로 디버깅하고 싶음 | X | j 키 → React Native DevTools |
35| VS Code에서 인라인 로그 보고 싶음 | X | Expo Tools / Radon IDE 확장 |
36| Expo CLI 프로젝트 | △ | Expo CLI 자체 로그 스트리밍 있음, 네트워크는 이 스킬 유용 |
37
38## 워크플로우
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md936 words
Files4
Licencenot declared
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈200
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
3,825
on trigger
The instruction body and 3 supporting files, read only when the skill fires.
2.0%
of a 200k window
Ten skills this size would take about 20% of the window before you open a file.
050k100k150k200k context window

4k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

4 files, 24.3 kB on disk. Mostly text — the instructions the model reads — with 1 script in it that your client would run only if the instructions tell it to.

  • SKILL.md8.7 kB
  • references/cdp-domains.md4.8 kB
  • references/inspector-proxy.md2.6 kB
  • scripts/cdp-console.mjs8.2 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 1 script beside the text, so the bundle is 4 files you can review in full before installing.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# React Native CDP Bridge · 4k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/react-native-cdp-bridge/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/react-native-cdp-bridge" ] && { [ ! -e .claude/skills/react-native-cdp-bridge ] || { mv .claude/skills/react-native-cdp-bridge "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/react-native-cdp-bridge" .claude/skills/ && echo "Installed .claude/skills/react-native-cdp-bridge"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add psw7205/react-native-cdp-bridge

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/react-native-cdp-bridge/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/react-native-cdp-bridge/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/react-native-cdp-bridge" ] && { [ ! -e ~/.claude/skills/react-native-cdp-bridge ] || { mv ~/.claude/skills/react-native-cdp-bridge "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/react-native-cdp-bridge" ~/.claude/skills/ && echo "Installed ~/.claude/skills/react-native-cdp-bridge" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/react-native-cdp-bridge/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as rn-cdp-bridge in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, react-native-cdp-bridge.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referencepsw7205/react-native-cdp-bridge

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

Reviews

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Anybody with an account, one review each. It carries the version that was current when you wrote it, and the publisher may reply once.

Who wrote it

PS
psw7205

Publishes on mcprush.

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