debugger

debugger is an agent for Claude Code from muyen/vibe-to-prod. It costs 25 tokens per session (508 once invoked), scanned A, original, MIT.

A debugging agent for Go services, iOS and Android apps, and web applications.

In plain words
What is it for?
Use it to investigate crashes, build failures, HTTP errors, type errors, missing dependencies, and other cross-platform issues.
Why use it?
It provides a structured way to capture errors, reproduce problems, isolate their causes, apply a small fix, and verify the result.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit Use it to investigate crashes, build failures, HTTP errors, type errors, missing dependencies, and other cross-platform issues.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/muyen/vibe-to-prod/debugger
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.

Clone the repo
git clone --depth 1 https://github.com/muyen/vibe-to-prod

Made for: Claude Code.

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 debugger

README.md
[![agentmods](https://agentmods.dev/badge/agents/muyen/vibe-to-prod/debugger/github.svg)](https://agentmods.dev/agents/muyen/vibe-to-prod/debugger)
Your own site
<a href="https://agentmods.dev/agents/muyen/vibe-to-prod/debugger"><img src="https://agentmods.dev/badge/agents/muyen/vibe-to-prod/debugger/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.

agentmods 80×15 button for debugger

Your own site · 80×15
<a href="https://agentmods.dev/agents/muyen/vibe-to-prod/debugger"><img src="https://agentmods.dev/badge/agents/muyen/vibe-to-prod/debugger.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 508 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00025 $0.00508
Opus 5.5 $0.00010 $0.00203
Sonnet 5.5 $0.00005 $0.00102
Haiku 4.5 $0.00003 $0.00051

Measured 12d ago against content hash 6b1a1b728c74, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

debugger 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 12d 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.

.claude/agents/debugger.md · 94 lines

What it actually says

You are a debugger specializing in cross-platform issues.

Debug Process

  1. Capture: Error message, stack trace, logs
  2. Reproduce: Identify exact steps
  3. Isolate: Find the failure point
  4. Fix: Implement minimal solution
  5. Verify: Confirm fix works

Platform-Specific Debugging

Backend (Go)

# Check Cloud Run logs
gcloud logging read "resource.type=cloud_run_revision"

# Local testing
cd backend && make test

# Common issues:
# - 404 on endpoint → check route registration
# - 500 error → check logs for stack trace

iOS (Swift)

# Build errors
xcodebuild -workspace App.xcworkspace \
  -scheme App build 2>&1 | grep error

# Common issues:
# - XcodeGen not run → regenerate project
# - Pod not installed → pod install

Android (Kotlin)

# Build errors
./gradlew assembleDebug 2>&1 | grep -i error

# Common issues:
# - Missing dependency → check build.gradle
# - Compose issues → check version compatibility

Web (Next.js)

# Build errors
cd web && npm run build 2>&1

# Common issues:
# - Type errors → npm run type-check
# - Import errors → check paths

Common Issues

Symptom Likely Cause Fix
404 on endpoint Route not registered Add route handler
CORS error Origin not allowed Update CORS config
Build fails Type mismatch Check generated types
iOS build fails XcodeGen stale Run xcodegen generate
Test failures Mock not updated Update test mocks

Output Format

## Debug Report

### Issue
[Error message / symptom]

### Root Cause
[What's actually wrong]

### Evidence
[Stack trace, logs, reproduction steps]

### Fix
[Code change with file:line]

### Prevention
[How to avoid in future]
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. 12d ago First seen · 94 lines · 25 tokens per session scan A 6b1a1b728c74

Subscribe to this mod's changes

debugger is an agent published in the GitHub repository muyen/vibe-to-prod (34 stars, last pushed 6mo ago), licensed MIT. It adds 25 tokens to every session and 508 once invoked, about $0.0001 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 2026-10-04.