debugger

debugger is an agent for Claude Code from smorky850612/Aurakit. It costs 45 tokens per session (927 once invoked), scanned A, original, MIT.

A read-only debugging agent that investigates software problems using root-cause analysis and a structured four-phase process.

In plain words
What is it for?
Use it to inspect errors, logs, recent changes, dependencies, and related code, then report the likely cause and a path to fix it.
Why use it?
It helps separate logic, type, timing, integration, configuration, data, and dependency problems before a fix is chosen.

Agent for Claude Code

Written for Claude Code: disallowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the aurakit plugin — 3 skills, 23 agents shipped together

Good fit Use it to inspect errors, logs, recent changes, dependencies, and related code, then report the likely cause and a path to fix it.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/smorky850612/aurakit/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/smorky850612/Aurakit

Made for: Claude Code.

Or install aurakit, the plugin that ships this one along with the rest of its 3 skills, 23 agents.

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/smorky850612/aurakit/debugger/github.svg)](https://agentmods.dev/agents/smorky850612/aurakit/debugger)
Your own site
<a href="https://agentmods.dev/agents/smorky850612/aurakit/debugger"><img src="https://agentmods.dev/badge/agents/smorky850612/aurakit/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/smorky850612/aurakit/debugger"><img src="https://agentmods.dev/badge/agents/smorky850612/aurakit/debugger.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 927 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 $0.00045 $0.00927
Opus 5.5 $0.00018 $0.00371
Sonnet 5.5 $0.00009 $0.00185
Haiku 4.5 $0.00005 $0.00093

Measured 1mo ago against content hash dec673bb222f, 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 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.

agents/debugger.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Debugger Agent — Root Cause Analysis Specialist

Absorbed from Autopus-ADK debugger agent. Systematic debugging using 5-WHY and 4-phase investigation. Read-only: identifies cause, reports fix path. Does not write code.


4-Phase Debug Process

Phase D1 — Error Classification

Classify the error before investigating:

Category:
  - Logic error (wrong algorithm / condition)
  - Type error (null/undefined, wrong type passed)
  - Race condition (timing/concurrency)
  - Integration error (API contract mismatch)
  - Configuration error (env var, build config)
  - Data error (bad state in DB/cache)
  - Dependency error (library behavior change)

Source:

- Stack trace: exact file:line
- Error message: parse for key terms
- HTTP status: 4xx (client) vs 5xx (server)
- Test failure: assertion message

Phase D2 — Evidence Collection

# Check logs
git log --oneline -10   # Recent changes
git diff HEAD~1         # What changed

# Runtime info
cat .env | grep -v "^#" | grep -v "^$"  # Env vars (NO VALUES in output)
cat package.json | jq '.dependencies'   # Dependencies

# Related code
grep -rn "functionName" src/ -A 5      # Where used

Read all files mentioned in stack trace. Understand data flow.

Phase D3 — 5-WHY Root Cause Analysis

Error: TypeError: Cannot read property 'email' of undefined

WHY 1: Why undefined?
→ user is undefined

WHY 2: Why is user undefined?
→ getUserById returned null

WHY 3: Why did getUserById return null?
→ User with that ID doesn't exist in DB

WHY 4: Why doesn't the user exist?
→ User was deleted but session cookie still valid

WHY 5: Why is session still valid after deletion?
→ Session not invalidated on user deletion

ROOT CAUSE: Session lifecycle not coupled to user lifecycle.

Always reach 5 levels. Stopping at WHY 1 or 2 leads to symptom fixes.

Phase D4 — Fix Hypothesis

Produce 2-3 fix options, ranked by:

  1. Fixes root cause (not symptom)
  2. Minimal blast radius
  3. Reversibility

Read the full file on GitHub · 138 lines

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. 1mo ago First seen · 138 lines · 45 tokens per session scan A dec673bb222f

Subscribe to this mod's changes

debugger is an agent published in the GitHub repository smorky850612/Aurakit (43 stars, last pushed 6mo ago), licensed MIT. It adds 45 tokens to every session and 927 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.

Related

Other agents, from other repositories

integration-prober

External service integration verifier. Validates that the application connects to real services — not mocks, stubs, or deprecated endpoints. Checks database connectivity, API compatibility, and credential configuration. Read-only — produces findings, never code.

irahardianto/awesome-agv · 49 tokens

architect

Deep reasoning agent. Architecture decisions, security reviews, complex debugging, performance analysis, system design, race conditions, data modelling. Use when getting it wrong has high cost.

FerroxLabs/ijfw · 36 tokens

gentle-ai-explore

Read-only exploration and mapping for generic non-SDD work.

Gentleman-Programming/gentle-pi · 18 tokens

performance-engineer

Active performance specialist for profiling, benchmarking, load testing, and optimization implementation. Invoke for CPU/memory profiling, benchmark baselines, load test design, bottleneck identification, and capacity forecasting (data-driven; architectural capacity decisions belong to @architect). Writes optimization…

irahardianto/awesome-agv · 67 tokens

patch-generator

Implements the fix for one finding inside a scratch workspace clone, staged for review and delivery as a patch file; dispatched by the fix job, not for direct invocation.

fuxicodex/Fuxi · 37 tokens

code-reviewer-bug

name: code-reviewer-bug description: Specialized code reviewer for bug patterns — null safety, race conditions, resource leaks, logic and error-handling defects. Returns scored findings (severity × impact × confidence). skills: code-review model: inherit.

zxpmail/ReqForge · 0 tokens