When an app crashes on a stranger's phone, nobody tells you. This is the wiring that sends the crash back to you instead, out of an Android or iPhone app, along with what the app was doing at the time.
WHEN TO USE
SCOPE
USE FOR
Set up Crashlytics so crashes in your Android or iOS app get reported automatically.
Read collected crash data back out through the Firebase CLI's MCP server.
Attach custom keys, logs, or a user ID to crash reports for easier debugging.
Report caught exceptions that didn't crash the app as non-fatal issues.
This is a saved copy of the skill's SKILL.md instructions. It may differ from the upstream file or the version you install.
Crashlytics
This skill provides a complete guide for getting started with Crashlytics on
Android or iOS. Crash data collected from client applications can be read using
the MCP server in the Firebase CLI.
Prerequisites
Provisioning Crashlytics requires both a Firebase project and a Firebase app,
either Android or iOS. To read the data collected by Crashlytics, install the
MCP server in the Firebase CLI. See the firebase-basics skill for references.
SDK Setup
To learn how to setup Crashlytics in your application code, choose your
platform:
Crashlytics requires both a Firebase project and a registered Firebase app (Android or iOS) before it can be provisioned.
02
Install the MCP server in the Firebase CLI
Install the MCP server in the Firebase CLI so crash data collected from your client apps can be read back.
Listed as free
Connected services may require an account or charge fees.
🔌 This skill ships inside the Firebase Agent Skills plugin. Listed package contents include 1 agent and an MCP server. Installed components and skill versions may vary by AI tool.
Install just this skill
Run this outside your AI tool, using Node.js 22.20.0 or newer. Skills CLI 1.7.2 skips skill selection; prompts cancel installation without an interactive terminal. If choosing Project when asked about installation scope, open your project's folder before running this.
Install checklist
Check selected tools if a picker appears; Claude Code may be unchecked under Additional agents. ↑/↓ moves, Space toggles selections, Enter confirms.
Without a tool picker, check Installing to: for your intended tool. Stop if it names a different tool.
If asked, choose Symlink (Recommended) for shared files or Copy to all agents for separate copies; review the summary before confirming installation.
Install the find-skills skill? defaults to Yes, adding another skill for all projects. Choose No if you don't want that extra installation.
Skills CLI 1.7.2 sends install data to skills.sh by default, including the source, skill names, target tools and file details; GitHub sources are reported only when GitHub confirms the repository is public, while other remote sources can also be reported. Confirmed-public GitHub sources also trigger a security-audit request. Before installing, set the environment variable DO_NOT_TRACK=1 or DISABLE_TELEMETRY=1 to disable both.
After installing for Claude Code, open it in the installation project if you chose Project; Global makes the skill available across projects on this computer. Once Claude Code loads the skill, its description helps Claude decide when to use it.
If installation created a top-level skills folder that did not exist when your Claude Code session started, run /reload-skills in that session. Run it again after later changes in that folder.
Install the whole plugin
This route installs the Firebase Agent Skills plugin package selected for your AI tool.
Add the plugin's marketplace, then install it
Install Claude Code first to get the claude command, then run the commands below in your terminal, outside a Claude Code session.
claude plugin marketplace add firebase/agent-skills
claude plugin install firebase@firebase
Add Firebase's marketplace, then install the plugin
Run both lines in a terminal. They add Firebase's marketplace, which is this repository, and install the firebase plugin: Firebase's skills plus the Firebase MCP server.
Plugins work in Codex CLI and the ChatGPT desktop app, not in the Codex IDE extension.
For the desktop app, Firebase has you run the first line, fully restart the app, then install Firebase from Plugins.
Run it in a terminal, not inside a Gemini CLI session. It installs this repository as a Gemini CLI extension with Firebase's skills and the Firebase MCP server.
Install checklist
Installing from GitHub needs git on your computer.
Node.js, because the Firebase MCP server starts through npx.
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