Use this skill when the task involves inspecting, searching, or extracting information from application log files. Suitable for tasks like "my application is crashing and I need to find the errors", "scan these logs for warnings", "extract all exceptions from this log file", or "find slow requests in my server logs". Triggered by debugging, incident investigation, or log analysis needs.
SkillScore88Maintained
Automatic
◆DevOps & SRE pack
Last verified 9/28/2026
What it changes
Passed 18 of 21 test cases with the skill, and 4 of 21 without it.
Without skill17%
With skill88%
Checks it passed that the model alone missed
The command includes `--level ERROR`.
The command passes `--input cron.log`.
The command uses `--output audit.json`.
and 21 more in the full report
17 fixed4 passed either way3 still failing0 broke
Pass-rate lift
+71 pp
Tokens
-63%
Agent turns
0%
Response time
-46%
Model gemini-3.6-flashMeasured 9/28/2026v121 of 24 cases passed with skill · 21 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 17 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 17
Prompt
The file `redis_server.log` has connection warnings that are noise. We want to extract only ERROR logs using the repository tool. What is the exact command?
What was checked, without and with the skill
Checked
Without skill
With skill
The command references `scripts/extract_errors.py`.
Missed
Passed
The argument `--level ERROR` is present.
Missed
Passed
case-18 · gemini-3.6-flash · 9/28/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md14 lines2 filesincludes scripts
Log Parser Skill
Parses application log files to extract errors, warnings, and patterns.
Available Scripts
scripts/extract_errors.py — Scan a log file and extract all ERROR/WARN lines with timestamps into a structured summary