Borrowing it
Nothing to install: this file belongs to nexus-labs-automation/mobile-observability. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/nexus-labs-automation/mobile-observability/main/CLAUDE.mdgit clone --depth 1 https://github.com/nexus-labs-automation/mobile-observabilityWrote 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/instructions/nexus-labs-automation/mobile-observability/claude-md)<a href="https://agentmods.dev/instructions/nexus-labs-automation/mobile-observability/claude-md"><img src="https://agentmods.dev/badge/instructions/nexus-labs-automation/mobile-observability/claude-md/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/instructions/nexus-labs-automation/mobile-observability/claude-md"><img src="https://agentmods.dev/badge/instructions/nexus-labs-automation/mobile-observability/claude-md.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 | $0.00510 | $0.00510 |
| Opus 5 | $0.00255 | $0.00255 |
| Sonnet 5 | $0.00102 | $0.00102 |
| Haiku 4.5 | $0.00051 | $0.00051 |
Grade A, and why
mobile-observability CLAUDE.md 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 10d 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 — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mobile Observability Plugin
Project Context
Claude Code plugin for mobile app observability. Provides commands, agents, skills, and hooks for iOS, Android, and React Native instrumentation.
Plugin Components
| Component | Location | Description |
|---|---|---|
| Commands | commands/ |
/instrument, /audit |
| Agents | agents/ |
codebase-analyzer, instrumentation-reviewer |
| Skills | skills/ |
8 focused instrumentation skills |
| Hooks | hooks/hooks.json |
Anti-pattern warnings for Swift/Kotlin/TypeScript |
| References | references/ |
20+ guides, templates, vendor docs |
Key Commands
/instrument ios # Generate instrumentation plan
/audit # Scan existing instrumentation
Skills
| Skill | Trigger |
|---|---|
instrumentation-planning |
"What should I measure?" |
crash-instrumentation |
"How to capture crashes with context" |
session-replay |
"Set up session replay" |
interaction-latency |
"Track button response time" |
navigation-latency |
"Track screen load time" |
network-tracing |
"Trace API requests" |
user-journey-tracking |
"Track user funnels" |
Reference Navigation
| Topic | File |
|---|---|
| Methodology | references/user-focused-observability.md |
| What to measure | references/jtbd.md |
| Instrumentation checklist | references/instrumentation-patterns.md |
| Business logic | references/business-logic.md |
| Feature flags | references/feature-flags.md |
| Crashes | references/crash-reporting.md |
| Performance | references/performance.md, references/ui-performance.md |
| Database | references/data-persistence.md |
| iOS | references/ios-native.md |
| Android | references/android-native.md |
| React Native | references/react-native-expo.md |
| OpenTelemetry | references/otel-mobile.md |
| Vendors | references/platforms/*.md |
Development
# Test plugin locally
claude plugins install ./
# Verify structure
ls -la .claude-plugin/ commands/ agents/ skills/ hooks/ references/
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.
- 10d ago First seen · 63 lines · 510 tokens per session scan A 331b123fd952
mobile-observability CLAUDE.md is an instructions file published in the GitHub repository nexus-labs-automation/mobile-observability (116 stars, last pushed 17d ago), licensed MIT. It adds 510 tokens to every session, about $0.0026 per session on Opus 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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