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Runs structured debugging sessions to reproduce, isolate, diagnose root causes, and fix bugs from error messages, stack traces, or production discrepancies.
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/engineering:debugThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
> If you see unfamiliar placeholders or need to check which tools are connected, see [CONNECTORS.md](../../CONNECTORS.md).
Runs structured debugging sessions to reproduce, isolate, diagnose root causes, and fix bugs from error messages, stack traces, or production discrepancies.
Guides systematic debugging for broken features, errors, failed deployments, or tests: reproduce bugs, gather git/logs diagnostics, read errors, diagnose root causes before fixes.
Systematically debugs issues via reproduction steps, isolation techniques like git bisect, log/stack trace analysis, and common error pattern fixes. For bugs, incidents, troubleshooting.
Share bugs, ideas, or general feedback.
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Run a structured debugging session to find and fix issues systematically.
/debug $ARGUMENTS
┌─────────────────────────────────────────────────────────────────┐
│ DEBUG │
├─────────────────────────────────────────────────────────────────┤
│ Step 1: REPRODUCE │
│ ✓ Understand the expected vs. actual behavior │
│ ✓ Identify exact reproduction steps │
│ ✓ Determine scope (when did it start? who is affected?) │
│ │
│ Step 2: ISOLATE │
│ ✓ Narrow down the component, service, or code path │
│ ✓ Check recent changes (deploys, config changes, dependencies) │
│ ✓ Review logs and error messages │
│ │
│ Step 3: DIAGNOSE │
│ ✓ Form hypotheses and test them │
│ ✓ Trace the code path │
│ ✓ Identify root cause (not just symptoms) │
│ │
│ Step 4: FIX │
│ ✓ Propose a fix with explanation │
│ ✓ Consider side effects and edge cases │
│ ✓ Suggest tests to prevent regression │
└─────────────────────────────────────────────────────────────────┘
Tell me about the problem. Any of these help:
## Debug Report: [Issue Summary]
### Reproduction
- **Expected**: [What should happen]
- **Actual**: [What happens instead]
- **Steps**: [How to reproduce]
### Root Cause
[Explanation of why the bug occurs]
### Fix
[Code changes or configuration fixes needed]
### Prevention
- [Test to add]
- [Guard to put in place]
If ~~monitoring is connected:
If ~~source control is connected:
If ~~project tracker is connected: