Growth Log
affaan-m/ECC
Write growth log entries that extract reusable patterns from completed work — root cause, transferable rule, and a recognizable signal — instead of diary-style event narration, with a 4-8 sentence…
日志分析技能：从日志中快速定位异常、统计错误分布、提取关键时间线. An agent skill from 312362115/claude.
MITAuto-check passed
Install Log Analysis
$ npx skills add 312362115/claude --skill log-analysis -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install 312362115/claude log-analysis --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/312362115/claude.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/log-analysis .claude/skills/log-analysis && 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-analysis" agent skill from https://github.com/312362115/claude/tree/main/skills/log-analysis into .claude/skills/log-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-analysis", 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/312362115/claude/tree/main/skills/log-analysisType 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 312362115/claude --skill log-analysis -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install 312362115/claude log-analysis --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/312362115/claude.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/log-analysis .agents/skills/log-analysis && 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-analysis" agent skill from https://github.com/312362115/claude/tree/main/skills/log-analysis into .agents/skills/log-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-analysis", 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 312362115/claude --skill log-analysis -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install 312362115/claude log-analysis --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/312362115/claude.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/log-analysis .cursor/skills/log-analysis && 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-analysis" agent skill from https://github.com/312362115/claude/tree/main/skills/log-analysis into .cursor/skills/log-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-analysis", 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/312362115/claude.git --path skills/log-analysis--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 312362115/claude --skill log-analysis -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install 312362115/claude log-analysis --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/312362115/claude.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/log-analysis .gemini/skills/log-analysis && 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-analysis" agent skill from https://github.com/312362115/claude/tree/main/skills/log-analysis into .gemini/skills/log-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-analysis", 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 312362115/claude log-analysisInstalls 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 312362115/claude --skill log-analysis -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/312362115/claude.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/log-analysis .github/skills/log-analysis && 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-analysis" agent skill from https://github.com/312362115/claude/tree/main/skills/log-analysis into .github/skills/log-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-analysis", 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 312362115/claude --skill log-analysis -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install 312362115/claude log-analysis --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/312362115/claude.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/log-analysis .opencode/skills/log-analysis && 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-analysis" agent skill from https://github.com/312362115/claude/tree/main/skills/log-analysis into .opencode/skills/log-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "log-analysis", 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-analysis- GitHub stars
- 107
- Token cost
- ~779 tokens
- SKILL.md length
- 116 words
- Files
- 1
- Skills in repo
- 20
- Repo updated
- First seen
- Licence
- MIT
At a glance
日志分析技能：从日志中快速定位异常、统计错误分布、提取关键时间线. An agent skill from 312362115/claude.
- Works in 3 steps: 从结果倒推：用户看到的问题 → 直接原因 → 根本原因 → 时间相关性：问题开始时间前后，有没有部署/配置变更/流量突增？ → 5 Whys：连续追问"为什么"直到找到根因
- SKILL.md covers 分析流程, 第一步：识别日志格式, 第二步：定位异常 and 第三步：构建时间线, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Log Analysis is an agent skill from 312362115/claude. 日志分析技能：从日志中快速定位异常、统计错误分布、提取关键时间线。 支持各种日志格式（JSON、纯文本、结构化、非结构化）。 触发词：帮我看看日志、这段日志什么意思、找找报错、日志分析、error log。 触发场景：线上问题排查、错误日志分析、用户反馈复现、性能问题排查。 即使用户没有说"日志分析"，只要给了一段日志让你看，都应触发此技能。
Its SKILL.md is about 780 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The licence is MIT.
Example prompts
- “/log-analysis”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- 从结果倒推：用户看到的问题 → 直接原因 → 根本原因
- 时间相关性：问题开始时间前后，有没有部署/配置变更/流量突增？
- 5 Whys：连续追问"为什么"直到找到根因
What it can do on your machine
Read from SKILL.md and the folder at commit 2d4fa49. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
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 Analysis loads about 779 tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 116 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); files beside SKILL.md are not scanned.
SKILL.md
The full file from 312362115/claude at commit 2d4fa49, republished under its MIT licence (© 312362115). 116 words, ~779 tokens.
Download SKILL.mdSave it as
.claude/skills/log-analysis/SKILL.md (or your agent's skills folder).- name
- log-analysis
- description
- 日志分析技能：从日志中快速定位异常、统计错误分布、提取关键时间线。 支持各种日志格式（JSON、纯文本、结构化、非结构化）。 触发词：帮我看看日志、这段日志什么意思、找找报错、日志分析、error log。 触发场景：线上问题排查、错误日志分析、用户反馈复现、性能问题排查。 即使用户没有说"日志分析"，只要给了一段日志让你看，都应触发此技能。
- version
- 1.0.0
- last_updated
- 2026-04-08
- repository
- https://github.com/312362115/claude
日志分析（Log Analysis）
日志是系统说的话。大部分时候它在说废话，但出问题时，答案就藏在那些废话里。
分析流程
拿到日志
│
├─ 1. 识别日志格式和结构
├─ 2. 定位异常和错误
├─ 3. 构建时间线
├─ 4. 分析根因
└─ 5. 给出结论和建议第一步：识别日志格式
| 格式 | 特征 | 处理方式 |
|---|---|---|
| JSON 结构化 | 每行一个 JSON 对象 | 解析 JSON，按字段筛选 |
| 标准日志格式 | [时间] [级别] [模块] 消息 | 正则提取字段 |
| 纯文本 | 无固定格式 | 按关键词和时间戳模式匹配 |
| 堆栈跟踪 | Error + at file:line | 识别错误类型和调用栈 |
如果日志太长（>500 行），先问用户：
- 大概什么时间段出的问题？
- 有没有相关的错误关键词？
- 受影响的用户/请求 ID？
第二步：定位异常
2.1 错误级别扫描
按优先级从高到低扫描：
FATAL / CRITICAL → ERROR → WARN → 异常模式（超时、重试、拒绝）2.2 关键模式识别
| 模式 | 关键词 | 可能的问题 |
|---|---|---|
| 异常/错误 | Error, Exception, FATAL, panic | 代码错误 |
| 超时 | timeout, ETIMEDOUT, deadline exceeded | 网络/依赖慢 |
| 连接失败 | ECONNREFUSED, connection reset, ECONNRESET | 服务不可达 |
| 资源耗尽 | OOM, too many open files, pool exhausted | 资源泄漏 |
| 权限问题 | 403, permission denied, unauthorized | 权限配置 |
| 数据问题 | null, undefined, NaN, invalid | 数据质量 |
| 重试/降级 | retry, fallback, circuit breaker | 依赖不稳定 |
2.3 统计错误分布
## 错误统计
| 错误类型 | 次数 | 首次出现 | 最后出现 |
|---------|------|---------|---------|
| ConnectionTimeout | 45 | 14:23:01 | 14:28:33 |
| NullPointerError | 3 | 14:25:12 | 14:25:14 |
| AuthTokenExpired | 12 | 14:20:00 | 14:30:00 |第三步：构建时间线
将关键事件按时间排列，还原问题发生经过：
## 事件时间线
14:20:00 [正常] 服务启动，连接数据库成功
14:23:01 [异常] 首次出现 ConnectionTimeout，目标：redis:6379
14:23:15 [异常] ConnectionTimeout 频率上升，10s 内 15 次
14:24:00 [告警] Redis 连接池耗尽，开始排队
14:25:12 [错误] NullPointerError — getUserSession() 返回 null
↑ 因为 Redis 不可用，session 查询失败
14:25:30 [降级] 熔断器触发，Redis 请求直接返回 fallback
14:28:33 [恢复] Redis 连接恢复，ConnectionTimeout 消失
14:30:00 [正常] 错误率归零第四步：分析根因
分析方法
- 从结果倒推：用户看到的问题 → 直接原因 → 根本原因
- 时间相关性：问题开始时间前后，有没有部署/配置变更/流量突增？
- 5 Whys：连续追问"为什么"直到找到根因
输出格式
## 根因分析
### 现象
用户登录页报 500 错误
### 直接原因
getUserSession() 返回 null，后续代码未做空值处理导致 NullPointerError
### 根本原因
Redis 实例在 14:23 出现网络抖动（可能是运维变更），
导致连接超时 → 连接池耗尽 → session 查询失败 → 空值未处理 → 500
### 因果链
Redis 网络抖动 → 连接超时 → 连接池耗尽 → session 查询失败
→ 返回 null → 未做空值检查 → NullPointerError → 500 响应第五步：结论和建议
## 结论
1. **根因**：Redis 网络抖动导致连接超时，session 查询失败
2. **影响面**：14:23-14:28 期间约 200 个请求受影响
3. **恢复方式**：Redis 连接自动恢复后问题消失
## 建议
### 短期（立即修复）
- getUserSession() 增加空值检查，返回 null 时走降级逻辑而非抛异常
### 中期（防止复发）
- Redis 连接池增加健康检查和自动重连机制
- 添加 Redis 连接状态监控告警
### 长期（提升韧性）
- session 查询增加本地缓存兜底
- 考虑 Redis Sentinel 或 Cluster 提高可用性分析准则
- 先全局后细节：先扫一遍日志全貌（错误分布、时间范围），再深入具体错误
- 关注时间相关性：问题前后有什么变化？部署？配置？流量？
- 区分因果和巧合：两个事件时间接近不代表有因果关系
- 不猜测：日志里没有的信息就说"需要进一步确认"，不编原因
- 给可执行建议：不只是"加个日志"，而是"在
src/services/auth.ts:45的 getUserSession() 返回值后加空值检查"
© 312362115, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/log-analysis of 312362115/claude.
Open the folder on GitHubat commit 2d4fa49
Compare with similar skills
Log Analysis 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 Analysis this skill312362115/claude | 107 | — | ~779 | Automated safety check: Pass | MIT | |
| Growth Logaffaan-m/ECC | 275k | 1 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Clickhouse Logs Queriessupabase/supabase | 111k | — | ~2.4k | Automated safety check: Pass | Apache-2.0 | |
| Investigating LogsPostHog/posthog | 40k | — | ~2.1k | Automated safety check: Pass | Custom licence | |
| Logging and Error Reporting for Warpwarpdotdev/warp | 65k | 1 repos | ~5.6k | Automated safety check: Pass | AGPL-3.0 | |
| Analyze Logsactivepieces/activepieces | 25k | 1 repos | ~1.6k | Automated safety check: Pass | MIT |
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Questions about Log Analysis
What does Log Analysis do?
日志分析技能：从日志中快速定位异常、统计错误分布、提取关键时间线. An agent skill from 312362115/claude. Log Analysis is an agent skill from 312362115/claude.
How do I install Log Analysis in Claude Code?
Run `npx skills add 312362115/claude --skill log-analysis -a claude-code`. Or copy the skill folder (skills/log-analysis in 312362115/claude) into .claude/skills/log-analysis in your project. Claude Code loads it when a task matches its description.
How do I install Log Analysis in Codex?
Run `npx skills add 312362115/claude --skill log-analysis -a codex`. Or copy the skill folder (skills/log-analysis in 312362115/claude) into .agents/skills/log-analysis in your project. Codex loads it when a task matches its description.
Can I use Log Analysis 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 312362115/claude --skill log-analysis -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-analysis, .gemini/skills/log-analysis, .github/skills/log-analysis and .opencode/skills/log-analysis in your project.
What does Log Analysis need to run?
SKILL.md names no scripts, command-line tools or credentials: Log Analysis is instructions for the agent only.
Does Log Analysis 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 Analysis 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. Review the folder before installing.
What licence does Log Analysis use?
Log Analysis is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Log Analysis use?
About 779 tokens (SKILL.md is roughly 3.1k 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 Analysis?
Skills that share tags, products or a category with Log Analysis: Growth Log (affaan-m/ECC, 275k stars), Clickhouse Logs Queries (supabase/supabase, 111k stars), Investigating Logs (PostHog/posthog, 40k stars) and Logging and Error Reporting for Warp (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Log Analysis?
312362115 (a GitHub user) maintains it in 312362115/claude, which has 107 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on May 14, 2026.
Source: 312362115/claude on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.