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.
npx skills add conorluddy/xclaude-plugin --skill crash-debugginggit clone --depth 1 https://github.com/conorluddy/xclaude-pluginWrote 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.
[](https://agentmods.dev/skills/conorluddy/xclaude-plugin/crash-debugging)<a href="https://agentmods.dev/skills/conorluddy/xclaude-plugin/crash-debugging"><img src="https://agentmods.dev/badge/skills/conorluddy/xclaude-plugin/crash-debugging/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/conorluddy/xclaude-plugin/crash-debugging"><img src="https://agentmods.dev/badge/skills/conorluddy/xclaude-plugin/crash-debugging.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00061 | $0.05471 |
| Opus 5.5 | $0.00024 | $0.02188 |
| Sonnet 5.5 | $0.00012 | $0.01094 |
| Haiku 4.5 | $0.00006 | $0.00547 |
Grade A, and why
crash-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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 908 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Crash Debugging Skill
Comprehensive guide to iOS crash analysis and debugging
Quick Reference
| Task | Tool/Command | Location |
|---|---|---|
| View crash logs | Console.app | macOS Application |
| Retrieve simulator crashes | ~/Library/Logs/DiagnosticReports/ | File system |
| Symbolicate crash | atos | Command line |
| Find dSYM files | Xcode Organizer / DerivedData | Xcode |
| Analyze crash type | Stack trace patterns | Crash log |
Overview
Crash debugging transforms cryptic crash logs into actionable insights. This skill covers:
- Retrieving crash logs from simulators and devices
- Understanding crash log structure
- Symbolicating stack traces for readable function names
- Identifying common crash patterns
- Determining root causes
When to Use This Skill
Use this skill when:
- App crashes during testing or development
- Received crash reports from users or TestFlight
- CI/CD pipeline reports test crashes
- Need to symbolicate production crash logs
- Investigating memory issues or crashes
Don't use for:
- Build failures (see xcode-workflows)
- Test assertion failures (see ios-testing-patterns)
- UI debugging (see ui-automation-workflows)
Key Concepts
Crash Logs vs Diagnostic Reports
Crash Logs:
- Generated when app terminates unexpectedly
- Include exception type, stack trace, register state
- Stored in DiagnosticReports directory
- Named:
AppName_YYYY-MM-DD-HHMMSS_DeviceName.crash
Diagnostic Reports:
- Broader category including crashes, spins, hangs
- May include system diagnostics
- Same location as crash logs
Symbolication Process
Unsymbolicated:
0 MyApp 0x0000000102a3c4f8 0x102a38000 + 17656
1 MyApp 0x0000000102a3d1a4 0x102a38000 + 20900
Symbolicated:
0 MyApp 0x0000000102a3c4f8 ViewController.loginButtonTapped() + 120
1 MyApp 0x0000000102a3d1a4 ViewController.viewDidLoad() + 84
Symbolication Requirements:
- dSYM file matching the build UUID
- Binary (MyApp.app/MyApp)
- Crash log with memory addresses
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.
- 1mo ago First seen · 908 lines · 61 tokens per session scan A b425f07e47b6
crash-debugging is a skill published in the GitHub repository conorluddy/xclaude-plugin (184 stars, last pushed 1mo ago), licensed MIT. It adds 61 tokens to every session and 5,471 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.
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