rn-debug

rn-debug is a skill for Claude Code, Codex from hoainho/podium-mcp. It costs 36 tokens per session (303 once invoked), scanned A, original, MIT.

A React Native debugging workflow for checking Metro, the development server used by React Native, along with connected apps, logs, and crash reports. It can inspect one area or gather all available evidence.

In plain words
What is it for?
Finding running React Native apps, reviewing Metro warnings and errors, examining recent crashes, and identifying likely causes.
Why use it?
It brings the main debugging information into one diagnosis instead of requiring developers to inspect several tools separately.

Skill for Claude CodeCodex

Part of the podium-mcp plugin — 5 skills, 2 MCP servers shipped together

Install

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.

agentmods
npx agentmods add skills/hoainho/podium-mcp/rn-debug
Any agent
npx skills add hoainho/podium-mcp --skill rn-debug
Clone the repo
git clone --depth 1 https://github.com/hoainho/podium-mcp

Made for: Claude Code, Codex.

Or install podium-mcp, the plugin that ships this one along with the rest of its 5 skills, 2 MCP servers.

Wrote 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.

agentmods badge for rn-debug

README.md
[![agentmods](https://agentmods.dev/badge/skills/hoainho/podium-mcp/rn-debug.svg)](https://agentmods.dev/skills/hoainho/podium-mcp/rn-debug)
Your own site
<a href="https://agentmods.dev/skills/hoainho/podium-mcp/rn-debug"><img src="https://agentmods.dev/badge/skills/hoainho/podium-mcp/rn-debug.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 303 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00036 $0.00303
Opus 5 $0.00018 $0.00151
Sonnet 5 $0.00007 $0.00061
Haiku 4.5 $0.00004 $0.00030

Measured 5d ago against content hash 0f3ed9995211, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rn-debug 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 5d 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.

skills/rn-debug/SKILL.md · 23 lines

What it actually says

Parse $ARGUMENTS as optional <UDID> and <action> (logs | apps | crash | all). Default action is all.

apps — find connected RN bundles: Call metro_apps (port 8081). List each app with its title and webSocketDebuggerUrl. If Metro is not running, tell the user to start it first (npx react-native start).

logs — stream Metro console output: Call metro_logs (durationMs 8000, maxLogs 150). Group output by level: log, warn, error. Highlight any exceptions or unhandled promise rejections.

crash — recent crash reports: If UDID provided, call crash_list (udid UDID, sinceHours 48). Show entries newest-first with date, source (host/simulator), and one-line summary. For the most recent entry, call crash_get and summarize the exception type, termination reason, and top 5 frames.

all — run apps + logs + crash in sequence.

After gathering data, provide a structured diagnosis:

  • What is running / not running
  • Any errors or warnings
  • Most likely root cause (if determinable)
  • Suggested next step
Changes

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.

  1. 5d ago First seen · 23 lines · 36 tokens per session scan A 0f3ed9995211

Subscribe to this mod's changes

rn-debug is a skill published in the GitHub repository hoainho/podium-mcp (4 stars, last pushed 2mo ago), licensed MIT. It adds 36 tokens to every session and 303 once invoked, about $0.0002 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 2026-08-31.

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