Identify root cause from error messages and suggest proven solutions. Trigger with "fix this error", "resolve this error", "what is this error?", "fix build error", "resolve test failure".
SkillScore92Maintained
Automatic
◆Coding pack
Last verified 8/15/2026
What it changes
Passed 22 of 24 test cases with the skill, and 21 of 24 without it.
Without skill88%
With skill92%
Checks it passed that the model alone missed
Identifies the stack trace as the required artifact containing line numbers.
1 fixed21 passed either way2 still failing0 broke
Pass-rate lift
+4 pp
Tokens
+128%
Agent turns
0%
Response time
-8%
Model gemini-3.6-flashMeasured 8/15/2026v122 of 24 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
When collecting diagnostic information for an unhandled runtime exception, what core artifact is strictly required to pinpoint the exact line number of the error?
What was checked, without and with the skill
Checked
Without skill
With skill
Identifies the stack trace as the required artifact containing line numbers.
Missed
Passed
case-15 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md311 linessingle file
Identify root cause and suggest proven solutions
Analyzes error messages to identify root causes, predict resolution time, and suggest proven fixes. Learns patterns from similar errors to provide immediate solutions.
Usage
/fix-error [options]
Options
None: Standard error analysis
--deep: Deep dive including dependencies and environment
--preventive: Focus on preventing future occurrences
--quick: Quick fixes only
Basic Examples
# Standard error analysis
npm run build 2>&1
/fix-error
"Analyze this build error and suggest fixes"
# Deep analysis mode
python app.py 2>&1
/fix-error --deep
"Find the root cause, including environment issues"
# Quick fixes only
cargo test 2>&1
/fix-error --quick
"Just give me a quick fix"
# Prevention-focused
./app 2>&1 | tail -50
/fix-error --preventive
"Fix this and help me prevent it next time"