Prod Log Audit
Julian-adv/OpenMMO
Investigate OpenMMO production warnings, errors, suspicious behavior, and unresolved incidents within a deployment interval; correlate journald, nginx, and targeted evidence, then write a dated note…
Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports.
Install Log Error Digest
$ npx skills add zebbern/claude-code-guide --skill log-error-digest -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install zebbern/claude-code-guide log-error-digest --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/zebbern/claude-code-guide.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/log-error-digest .claude/skills/log-error-digest && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "log-error-digest" agent skill from https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digest into .claude/skills/log-error-digest/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-error-digest", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digestType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add zebbern/claude-code-guide --skill log-error-digest -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install zebbern/claude-code-guide log-error-digest --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zebbern/claude-code-guide.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/log-error-digest .agents/skills/log-error-digest && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "log-error-digest" agent skill from https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digest into .agents/skills/log-error-digest/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-error-digest", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add zebbern/claude-code-guide --skill log-error-digest -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install zebbern/claude-code-guide log-error-digest --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zebbern/claude-code-guide.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/log-error-digest .cursor/skills/log-error-digest && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "log-error-digest" agent skill from https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digest into .cursor/skills/log-error-digest/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-error-digest", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/zebbern/claude-code-guide.git --path skills/log-error-digest--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add zebbern/claude-code-guide --skill log-error-digest -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install zebbern/claude-code-guide log-error-digest --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zebbern/claude-code-guide.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/log-error-digest .gemini/skills/log-error-digest && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "log-error-digest" agent skill from https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digest into .gemini/skills/log-error-digest/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-error-digest", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install zebbern/claude-code-guide log-error-digestInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add zebbern/claude-code-guide --skill log-error-digest -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/zebbern/claude-code-guide.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/log-error-digest .github/skills/log-error-digest && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "log-error-digest" agent skill from https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digest into .github/skills/log-error-digest/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-error-digest", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add zebbern/claude-code-guide --skill log-error-digest -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install zebbern/claude-code-guide log-error-digest --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zebbern/claude-code-guide.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/log-error-digest .opencode/skills/log-error-digest && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "log-error-digest" agent skill from https://github.com/zebbern/claude-code-guide/tree/main/skills/log-error-digest into .opencode/skills/log-error-digest/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-error-digest", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
log-error-digest- GitHub stars
- 4.7k
- Token cost
- ~923 tokens
- SKILL.md length
- 196 words
- Files
- 3 (incl. scripts)
- Skills in repo
- 46
- Repo updated
- First seen
- Licence
- MIT
At a glance
Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports.
- A user uploads a .log file and asks to analyze errors
- SKILL.md covers Features, Supported Log Formats, Usage and Output
- Runs Python scripts from its folder; calls python
- Get distribution stats
What it does
Log Error Digest is an agent skill from zebbern/claude-code-guide. Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports. Supports JSON, syslog, and Nginx formats with automatic detection. Use when a user uploads a .log file and asks to analyze errors, find patterns, debug issues, or get distribution stats.
Its SKILL.md is about 920 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including scripts (for example `scripts/analyze_logs.py`).
It sits in DevOps & Cloud, covering Cloud networking and Statistics. It works with NGINX. The repository describes itself as: Claude Code Guide - Setup, Commands, workflows, agents, skills & tips-n-tricks from beginner to power user! The licence is MIT.
When your agent uses it
- A user uploads a .log file and asks to analyze errors
- Get distribution stats
Example prompts
- “/log-error-digest”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit e62775c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Log Error Digest loads about 923 tokens when it runs. Until then it costs about 89 tokens; SKILL.md has 196 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from zebbern/claude-code-guide at commit e62775c, republished under its MIT licence (© zebbern). 196 words, ~923 tokens.
Download SKILL.mdSave it as
.claude/skills/log-error-digest/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- log-error-digest
- description
- Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports. Supports JSON, syslog, and Nginx formats with automatic detection. Use when a user uploads a .log file and asks to analyze errors, find patterns, debug issues, or get distribution stats.
- license
- MIT
- type
- tool
- tags
- logs, analysis, devops, monitoring
Log Error Digest
Automated log file analysis that produces error clustering, frequency statistics, and time distribution reports.
Features
- Error Clustering: Groups similar error messages by normalizing dynamic parts (IPs, UUIDs, numbers, etc.) to identify root causes
- Frequency Statistics: Counts occurrences by error type, sorted by severity
- Time Distribution: Shows error distribution by hour and by date, helping pinpoint peak error periods
Supported Log Formats
| Format | Description | Auto-detection |
|---|---|---|
| JSON | One JSON object per line with timestamp/level/message fields | Starts with { |
| syslog | RFC 3164 format, e.g. Jan 1 12:00:00 host proc[pid]: msg | Starts with month name |
| Nginx | Access log or error log format | Starts with IP or date/path pattern |
Usage
python scripts/analyze_logs.py <log_file_path> [options]Parameters
| Parameter | Description | Default |
|---|---|---|
log_file | Path to the log file (required) | - |
--format | Log format: auto/json/syslog/nginx | auto |
--top | Show Top N error clusters | 20 |
--output | Export results to a JSON file | Terminal output only |
--level | Filter by log level (e.g. ERROR, WARN) | All levels |
--since | Only analyze logs after this time (ISO format) | No limit |
--until | Only analyze logs before this time (ISO format) | No limit |
Examples
# Auto-detect format and analyze the entire log file
python scripts/analyze_logs.py /var/log/app.log
# Specify Nginx format, show only Top 10 errors
python scripts/analyze_logs.py /var/log/nginx/error.log --format nginx --top 10
# Filter ERROR level only, export JSON report
python scripts/analyze_logs.py app.log --level ERROR --output report.json
# Analyze logs within a specific time range
python scripts/analyze_logs.py app.log --since 2024-01-01T00:00:00 --until 2024-01-02T00:00:00Output
Terminal Output
=======================================================
Log Analysis Report
=======================================================
📊 Overview
Detected format: json
Total lines: 15,234
Parsed: 15,100 (parse failures: 134)
Matched entries: 12,800
Errors: 2,341
Time range: 2024-01-01 00:03:12 ~ 2024-01-01 23:58:45
🔴 Top Error Clusters (47 total)
#1 [×523 ] Connection refused to database at 10.0.1.5:5432
First seen: 2024-01-01T00:15:30 Last seen: 2024-01-01T23:45:12
#2 [×312 ] Timeout waiting for response from user-service after 30000ms
First seen: 2024-01-01T02:10:00 Last seen: 2024-01-01T22:30:45
#3 [×198 ] File not found: /data/uploads/img_99421.png
First seen: 2024-01-01T08:00:00 Last seen: 2024-01-01T20:15:33
...
⏰ Time Distribution (by hour)
00:00 █████░░░░░░░░░░░░░░░ 42
01:00 ██░░░░░░░░░░░░░░░░░░ 18
...
14:00 ████████████████████ 523
...
📅 Time Distribution (by date)
2024-01-01 ████████████████████ 2,341JSON Output
Use the --output parameter to export a structured JSON report for further processing or integration with monitoring systems.
© zebbern, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (scripts) in skills/log-error-digest of zebbern/claude-code-guide.
- SKILL.md
- LICENSE
- scripts/analyze_logs.py
Open the folder on GitHubat commit e62775c
Compare with similar skills
Log Error Digest next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Log Error Digest this skillzebbern/claude-code-guide | 4.7k | — | ~923 | Automated safety check: Pass | MIT | |
| Prod Log AuditJulian-adv/OpenMMO | 1.8k | — | ~1.3k | Automated safety check: Pass | Custom licence | |
| Nginx To Higress Migrationhigress-group/higress | 9.5k | — | ~3.9k | Automated safety check: Pass | Apache-2.0 | |
| NGINX Ingress Controller Feature Checklistsnginx/kubernetes-ingress | 5.1k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| NGINX Ingress Policy CRD Guidenginx/kubernetes-ingress | 5.1k | — | ~2k | Automated safety check: Pass | Apache-2.0 | |
| KubeSphere Gateway Managementkubesphere/kubesphere | 17k | — | ~2.9k | Automated safety check: Pass | Custom licence |
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Related
Works with
Categories
Questions about Log Error Digest
What does Log Error Digest do?
Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports. Log Error Digest is an agent skill from zebbern/claude-code-guide. Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports.
When should I use Log Error Digest?
Log Error Digest fits situations like: A user uploads a .log file and asks to analyze errors; get distribution stats.
How do I install Log Error Digest in Claude Code?
Run `npx skills add zebbern/claude-code-guide --skill log-error-digest -a claude-code`. Or copy the skill folder (skills/log-error-digest in zebbern/claude-code-guide) into .claude/skills/log-error-digest in your project. Claude Code loads it when a task matches its description.
How do I install Log Error Digest in Codex?
Run `npx skills add zebbern/claude-code-guide --skill log-error-digest -a codex`. Or copy the skill folder (skills/log-error-digest in zebbern/claude-code-guide) into .agents/skills/log-error-digest in your project. Codex loads it when a task matches its description.
Can I use Log Error Digest in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add zebbern/claude-code-guide --skill log-error-digest -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/log-error-digest, .gemini/skills/log-error-digest, .github/skills/log-error-digest and .opencode/skills/log-error-digest in your project.
What does Log Error Digest need to run?
Going by SKILL.md and its folder, Log Error Digest needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Log Error Digest access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Log Error Digest safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Log Error Digest use?
Log Error Digest is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Log Error Digest use?
About 923 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Log Error Digest?
Skills that share tags, products or a category with Log Error Digest: Prod Log Audit (Julian-adv/OpenMMO, 1.8k stars), Nginx To Higress Migration (higress-group/higress, 9.5k stars), NGINX Ingress Controller Feature Checklists (nginx/kubernetes-ingress, 5.1k stars) and NGINX Ingress Policy CRD Guide (nginx/kubernetes-ingress, 5.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Log Error Digest?
zebbern (a GitHub user) maintains it in zebbern/claude-code-guide, which has 4,650 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 8, 2026.
Source: zebbern/claude-code-guide on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.