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Report native crashes, ANRs, and low-memory kills that FireCrasher's in-process handler cannot catch, using ApplicationExitInfo on API 30+.
Install Detect Native Crashes And Anrs
$ npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install osama-raddad/FireCrasher detect-native-crashes-and-anrs --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/osama-raddad/FireCrasher.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/skills/detect-native-crashes-and-anrs .claude/skills/detect-native-crashes-and-anrs && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "detect-native-crashes-and-anrs" agent skill from https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrs into .claude/skills/detect-native-crashes-and-anrs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detect-native-crashes-and-anrs", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install osama-raddad/FireCrasher detect-native-crashes-and-anrs --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/osama-raddad/FireCrasher.git skills-src && mkdir -p .agents/skills && cp -r skills-src/docs/skills/detect-native-crashes-and-anrs .agents/skills/detect-native-crashes-and-anrs && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "detect-native-crashes-and-anrs" agent skill from https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrs into .agents/skills/detect-native-crashes-and-anrs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detect-native-crashes-and-anrs", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install osama-raddad/FireCrasher detect-native-crashes-and-anrs --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/osama-raddad/FireCrasher.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/docs/skills/detect-native-crashes-and-anrs .cursor/skills/detect-native-crashes-and-anrs && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "detect-native-crashes-and-anrs" agent skill from https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrs into .cursor/skills/detect-native-crashes-and-anrs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detect-native-crashes-and-anrs", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/osama-raddad/FireCrasher.git --path docs/skills/detect-native-crashes-and-anrs--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install osama-raddad/FireCrasher detect-native-crashes-and-anrs --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/osama-raddad/FireCrasher.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/docs/skills/detect-native-crashes-and-anrs .gemini/skills/detect-native-crashes-and-anrs && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "detect-native-crashes-and-anrs" agent skill from https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrs into .gemini/skills/detect-native-crashes-and-anrs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detect-native-crashes-and-anrs", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install osama-raddad/FireCrasher detect-native-crashes-and-anrsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/osama-raddad/FireCrasher.git skills-src && mkdir -p .github/skills && cp -r skills-src/docs/skills/detect-native-crashes-and-anrs .github/skills/detect-native-crashes-and-anrs && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "detect-native-crashes-and-anrs" agent skill from https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrs into .github/skills/detect-native-crashes-and-anrs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detect-native-crashes-and-anrs", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install osama-raddad/FireCrasher detect-native-crashes-and-anrs --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/osama-raddad/FireCrasher.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/docs/skills/detect-native-crashes-and-anrs .opencode/skills/detect-native-crashes-and-anrs && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "detect-native-crashes-and-anrs" agent skill from https://github.com/osama-raddad/FireCrasher/tree/master/docs/skills/detect-native-crashes-and-anrs into .opencode/skills/detect-native-crashes-and-anrs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detect-native-crashes-and-anrs", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
detect-native-crashes-and-anrs- GitHub stars
- 147
- Token cost
- ~662 tokens
- SKILL.md length
- 193 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Report native crashes, ANRs, and low-memory kills that FireCrasher's in-process handler cannot catch, using ApplicationExitInfo on API 30+.
- You need a complete crash picture
- SKILL.md covers Option A: the callback…, Option B: query directly and Notes
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Why dont I get reports for native crashes / ANRs
What it does
Detect Native Crashes And Anrs is an agent skill from osama-raddad/FireCrasher. Report native crashes, ANRs, and low-memory kills that FireCrasher's in-process handler cannot catch, using ApplicationExitInfo on API 30+. Use when you need a complete crash picture, or "why don't I get reports for native crashes / ANRs".
Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Mobile. It works with Android and Java. The repository describes itself as: FireCrasher is a Uncaught Exceptions recovery library for android. The licence is Apache-2.0.
When your agent uses it
- You need a complete crash picture
- Why dont I get reports for native crashes / ANRs
Example prompts
- “why don”
- “/detect-native-crashes-and-anrs”
What it can do on your machine
Read from SKILL.md and the folder at commit 7a06228. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are kotlin).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Detect Native Crashes And Anrs loads about 662 tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 193 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from osama-raddad/FireCrasher at commit 7a06228, republished under its Apache-2.0 licence (© osama-raddad). 193 words, ~662 tokens.
Download SKILL.mdSave it as
.claude/skills/detect-native-crashes-and-anrs/SKILL.md (or your agent's skills folder).- name
- detect-native-crashes-and-anrs
- description
- Report native crashes, ANRs, and low-memory kills that FireCrasher's in-process handler cannot catch, using ApplicationExitInfo on API 30+. Use when you need a complete crash picture, or "why don't I get reports for native crashes / ANRs".
Detect crashes the handler can't catch
FireCrasher's onCrash only sees JVM exceptions on threads it controls. Native
crashes, ANRs, and low-memory kills terminate the process before any in-process
handler runs — they are invisible to it.
On API 30+, Android records these in ApplicationExitInfo. FireCrasher
surfaces that record on the next launch so you can report it. All of these
return empty/null below API 30, so no version guard is needed in your code.
Option A: the callback (recommended)
Configure onPreviousProcessExit. FireCrasher calls it from install when the
system has a record of the app dying abnormally last time:
installFireCrasher {
onCrash { recover() }
onPreviousProcessExit { exitInfo ->
// Only invoked on API 30+; the guard is for lint, which can't see
// that guarantee through the lambda.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
// The record may predate the last launch — check freshness if it matters.
val recent = System.currentTimeMillis() - exitInfo.timestamp < 60_000
FirebaseCrashlytics.getInstance().log(
"previous exit: reason=${exitInfo.reason} desc=${exitInfo.description} recent=$recent"
)
}
}
}exitInfo.reason values worth branching on include REASON_CRASH,
REASON_CRASH_NATIVE, REASON_ANR, and REASON_LOW_MEMORY.
Option B: query directly
Ask for the records from any Context whenever you need them:
// The most recent crash / native crash / ANR, or null.
val lastCrash: ApplicationExitInfo? = lastAbnormalExit()
// Full history, newest first (default up to 16).
val history: List<ApplicationExitInfo> = historicalExitReasons(maxCount = 16)(From Java: ExitInfoKt.lastAbnormalExit(context) and
ExitInfoKt.historicalExitReasons(context, 16).)
Notes
- De-duplicate. The same
ApplicationExitInforecord persists across launches. Track the last-seenexitInfo.timestamp(e.g. in SharedPreferences) so you don't report the same death on every launch. - An ANR record can carry a trace via
exitInfo.traceInputStream— attach it to your report when present. - Below API 30 these APIs no-op; combine this with
report-crashesfor the JVM exceptions FireCrasher can catch to get full coverage.
© osama-raddad, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in docs/skills/detect-native-crashes-and-anrs of osama-raddad/FireCrasher.
Open the folder on GitHubat commit 7a06228
Compare with similar skills
Detect Native Crashes And Anrs next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Detect Native Crashes And Anrs this skillosama-raddad/FireCrasher | 147 | — | ~662 | Automated safety check: Pass | Apache-2.0 | |
| Android API Diffgkd-kit/gkd | 43k | — | ~796 | Automated safety check: Pass | GPL-3.0 | |
| Frb Android Emulator Preparefzyzcjy/flutter_rust_bridge | 5.4k | — | ~2.1k | Automated safety check: Notes | MIT | |
| Android Maps Ktxgooglemaps/android-maps-ktx | 360 | — | ~897 | Automated safety check: Pass | Apache-2.0 | |
| Jugg Android Dev Loopniki914/zafiro | 241 | — | ~2k | Automated safety check: Pass | MIT | |
| Android Audio E2Ehyochan/react-native-nitro-sound | 961 | — | ~814 | Automated safety check: Pass | MIT |
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Add or update a Robolectric JVM unit test for the FireCrasher library.
Customize Recovery
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Inspect FireCrasher's recovery level and show custom recovery UX (loading dialog, toast, snackbar) or force a specific recovery level.
Install Firecrasher
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Add the FireCrasher crash-recovery library to an Android app and install it in the Application class.
Release
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Cut a new FireCrasher library release — bump the version, sync the README and ABI baseline, verify, and tag for JitPack.
Update Abi Baseline
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Regenerate and review FireCrasher's committed public ABI baseline (firecrasher/api/firecrasher.api) after an intentional public API change.
Report Crashes
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Forward FireCrasher-caught exceptions to a crash reporter (Crashlytics, Sentry, etc.) while still recovering the app.
Related
Categories
Questions about Detect Native Crashes And Anrs
What does Detect Native Crashes And Anrs do?
Report native crashes, ANRs, and low-memory kills that FireCrasher's in-process handler cannot catch, using ApplicationExitInfo on API 30+. Detect Native Crashes And Anrs is an agent skill from osama-raddad/FireCrasher. Report native crashes, ANRs, and low-memory kills that FireCrasher's in-process handler cannot catch, using ApplicationExitInfo on API 30+.
When should I use Detect Native Crashes And Anrs?
Detect Native Crashes And Anrs fits situations like: you need a complete crash picture; why dont I get reports for native crashes / ANRs.
How do I install Detect Native Crashes And Anrs in Claude Code?
Run `npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a claude-code`. Or copy the skill folder (docs/skills/detect-native-crashes-and-anrs in osama-raddad/FireCrasher) into .claude/skills/detect-native-crashes-and-anrs in your project. Claude Code loads it when a task matches its description.
How do I install Detect Native Crashes And Anrs in Codex?
Run `npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a codex`. Or copy the skill folder (docs/skills/detect-native-crashes-and-anrs in osama-raddad/FireCrasher) into .agents/skills/detect-native-crashes-and-anrs in your project. Codex loads it when a task matches its description.
Can I use Detect Native Crashes And Anrs in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add osama-raddad/FireCrasher --skill detect-native-crashes-and-anrs -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/detect-native-crashes-and-anrs, .gemini/skills/detect-native-crashes-and-anrs, .github/skills/detect-native-crashes-and-anrs and .opencode/skills/detect-native-crashes-and-anrs in your project.
What does Detect Native Crashes And Anrs need to run?
SKILL.md names no scripts, command-line tools or credentials: Detect Native Crashes And Anrs is instructions for the agent only.
Does Detect Native Crashes And Anrs access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Detect Native Crashes And Anrs safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Detect Native Crashes And Anrs use?
Detect Native Crashes And Anrs is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Detect Native Crashes And Anrs use?
About 662 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Detect Native Crashes And Anrs?
Skills that share tags, products or a category with Detect Native Crashes And Anrs: Android API Diff (gkd-kit/gkd, 43k stars), Frb Android Emulator Prepare (fzyzcjy/flutter_rust_bridge, 5.4k stars), Android Maps Ktx (googlemaps/android-maps-ktx, 360 stars) and Jugg Android Dev Loop (niki914/zafiro, 241 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Detect Native Crashes And Anrs?
osama-raddad (a GitHub user) maintains it in osama-raddad/FireCrasher, which has 147 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on July 3, 2026.
Source: osama-raddad/FireCrasher on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.