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log-analyzer

Summarizes application log files by severity, time range and the most frequent error messages. Use when the user shares a log file or pasted log output and asks what went wrong, which errors repeat, or how noisy the log is.

中文简介正在准备中。当前显示原文说明。

Lethe044/agentskill-kit星标 48(GitHub 48 + cccskills 0)

实测评分 未实测

查看安装方法

包含的文件(3)

  • SKILL.md2.0 KB
  • scripts/analyze_log.py2.3 KB
  • tests/cases.json1.1 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

Log analyzer

Reads plain text logs and produces a structured summary so the agent can reason about the incident instead of scrolling through thousands of lines.

When to use

  • The user pastes a stack trace or log excerpt and asks for the root cause.
  • The user asks which errors happen most often, or when problems started.
  • A deploy or test run failed and a log file is available.

How to run

python scripts/analyze_log.py --top 5 app.log
cat app.log | python scripts/analyze_log.py

The script reads the file given as the last argument, or standard input when no file is given.

Output

A JSON object:

  • total_lines and levels: a count per severity (CRITICAL, ERROR, WARN, INFO, DEBUG).
  • first_timestamp and last_timestamp: the earliest and latest ISO style timestamps found, or null.
  • top_errors: the most frequent error messages as {"message", "count"}. Numbers, hex ids and quoted values are replaced with placeholders so that similar errors group together.

Reading the result

  1. Start with levels. A high ratio of ERROR to INFO points to a sustained failure, not a one-off.
  2. Compare first_timestamp with the time the user reports the problem.
  3. Take the first entry of top_errors and search the original log for its raw form to get the stack trace.
  4. Report the cause, the evidence (counts and timestamps), and one concrete next step.

Example

Input line: 2024-05-01 10:00:02 ERROR db timeout after 30s on host 10.0.0.5

The message is grouped as db timeout after <n>s on host <n>.<n>.<n>.<n>.

Errors

A missing file exits with code 2 and file not found on stderr. Empty input returns zero counts.

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