# Debugging Patterns

> Root cause analysis frameworks including log-first investigation, git bisect correlation, and pattern-based diagnosis with confidence scoring.

- **Type:** Skill
- **Install:** `agentstack add skill-a5c-ai-babysitter-debugging-patterns`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [a5c-ai](https://agentstack.voostack.com/s/a5c-ai)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [a5c-ai](https://github.com/a5c-ai)
- **Source:** https://github.com/a5c-ai/babysitter/tree/main/library/methodologies/cc10x/skills/debugging-patterns
- **Website:** https://a5c.ai

## Install

```sh
agentstack add skill-a5c-ai-babysitter-debugging-patterns
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Debugging Patterns

## Overview

Provides structured frameworks for root cause analysis. The log-first methodology ensures evidence is gathered before hypotheses are formed.

## Log-First Investigation

1. Read ALL available logs, error output, and stack traces
2. DO NOT form hypotheses before reading evidence
3. Identify the exact error: message, file, line, call stack
4. Determine reproduction steps from evidence
5. Check git log for recent changes correlating with bug introduction

## Pattern-Based Diagnosis

- Check patterns.md for known gotchas matching the error
- Cross-reference with common patterns: null pointer, race condition, resource leak, config error
- Rate root cause confidence (>=80% to proceed with fix)

## Evidence Collection

- Stack traces with full call chain
- Error messages with context
- Exit codes from reproduction attempts
- Git blame/log for change correlation
- Environment differences (if applicable)

## When to Use

- During DEBUG workflow investigation phase
- When BUILD tests fail unexpectedly
- When reviewing error handling gaps

## Agents Used

- `bug-investigator` (primary consumer)
- `silent-failure-hunter` (pattern reference)

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [a5c-ai](https://github.com/a5c-ai)
- **Source:** [a5c-ai/babysitter](https://github.com/a5c-ai/babysitter)
- **License:** MIT
- **Homepage:** https://a5c.ai

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-a5c-ai-babysitter-debugging-patterns
- Seller: https://agentstack.voostack.com/s/a5c-ai
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.