Agent skill

Observer SQL Analysis

by oceanbase in oceanbase/obdiag

标准 SOP:单条 SQL 性能、执行计划、trace 计划包、锁等待。用户问「为什么慢」、提供 traceid、或描述锁/超时时使用;与 obdiag-performance(整体 ASH/AWR)、observer-log-analysis(observer 日志链)分工。

MulanPSL-2.0Auto-check passedDatabases

Install Observer SQL Analysis

skills CLI
$ npx skills add oceanbase/obdiag --skill observer-sql-analysis -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install oceanbase/obdiag observer-sql-analysis --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/oceanbase/obdiag.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/agent/skills/observer-sql-analysis .claude/skills/observer-sql-analysis && rm -rf skills-src

Use ~/.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/

Facts

Skill name
observer-sql-analysis
GitHub stars
163
Token cost
~736 tokens
SKILL.md length
204 words
Files
1
Skills in repo
14
Repo updated
First seen
Licence
MulanPSL-2.0

At a glance

标准 SOP:单条 SQL 性能、执行计划、trace 计划包、锁等待。用户问「为什么慢」、提供 traceid、或描述锁/超时时使用;与 obdiag-performance(整体 ASH/AWR)、observer-log-analysis(observer 日志链)分工。

  • Works in 3 steps: 表格:计划关键指标(操作符、COST、ROWS、索引/分区等)或锁等待关键字段。 → 结论文本:1–3 条 可执行 建议(加索引条件、改写… → 下一步:若需 ASH/AWR、巡检、RCA,指明 skill 或工具。
  • Tasks that involve SQL
  • SKILL.md covers 触发与边界, 前置条件, 分支:选主路径 and 阶段 A:计划监控包(trace_id), plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Observer SQL Analysis is an agent skill from oceanbase/obdiag. 标准 SOP:单条 SQL 性能、执行计划、trace 计划包、锁等待。用户问「为什么慢」、提供 traceid、或描述锁/超时时使用;与 obdiag-performance(整体 ASH/AWR)、observer-log-analysis(observer 日志链)分工。

Its SKILL.md is about 740 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Databases, covering SQL and Operations and SOPs. It works with SQL. The repository describes itself as: obdiag (OceanBase Diagnostic Tool) is designed to help OceanBase users quickly gather necessary information and analyze the root cause of the problem.

When your agent uses it

  • Tasks that involve SQL
  • Tasks that involve Operations and SOPs

Example prompts

  • “/observer-sql-analysis”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. 表格:计划关键指标(操作符、COST、ROWS、索引/分区等)或锁等待关键字段。
  2. 结论文本:1–3 条 可执行 建议(加索引条件、改写 SQL、调参、扩时间再采日志等)。
  3. 下一步:若需 ASH/AWR、巡检、RCA,指明 skill 或工具。

What it can do on your machine

Read from SKILL.md and the folder at commit e912c58. 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.

    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

Observer SQL Analysis loads about 736 tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 204 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~41
When it runs · the whole SKILL.md, loaded when a task matches
~736

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

Its licence (MulanPSL-2.0) doesn't allow us to republish the file, so here is its outline and opening line. It has 204 words (~736 tokens).

“目的:拉取与 trace 关联的 SQL plan monitor 材料。”

— opening of SKILL.md by oceanbase, MulanPSL-2.0
name
observer-sql-analysis

Read the full SKILL.md on GitHub

Files

Just SKILL.md in plugins/agent/skills/observer-sql-analysis of oceanbase/obdiag.

Open the folder on GitHubat commit e912c58

Compare with similar skills

Observer SQL 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.

Observer SQL Analysis compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Observer SQL Analysis this skilloceanbase/obdiag163—~736Automated safety check: PassMulanPSL-2.0
Evolving The Data ModelTriliumNext/Trilium38k—~2.1kAutomated safety check: PassAGPL-3.0
SQL Optimization Patternsynulihao/AgentSkillOS61710 repos~3.3kAutomated safety check: PassNone
SQL PortabilityHL7/sql-on-fhir150—~512Automated safety check: PassCustom licence
DB Migrationskurealnum/dotfiles290—~820Automated safety check: PassNone
Contact FilterChatbotXIO/ChatbotX878—~2.5kAutomated safety check: PassCustom licence

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Works with

Questions about Observer SQL Analysis

What does Observer SQL Analysis do?

标准 SOP:单条 SQL 性能、执行计划、trace 计划包、锁等待。用户问「为什么慢」、提供 traceid、或描述锁/超时时使用;与 obdiag-performance(整体 ASH/AWR)、observer-log-analysis(observer 日志链)分工。. Observer SQL Analysis is an agent skill from oceanbase/obdiag.

When should I use Observer SQL Analysis?

Observer SQL Analysis fits situations like: tasks that involve SQL; tasks that involve Operations and SOPs.

How do I install Observer SQL Analysis in Claude Code?

Run `npx skills add oceanbase/obdiag --skill observer-sql-analysis -a claude-code`. Or copy the skill folder (plugins/agent/skills/observer-sql-analysis in oceanbase/obdiag) into .claude/skills/observer-sql-analysis in your project. Claude Code loads it when a task matches its description.

How do I install Observer SQL Analysis in Codex?

Run `npx skills add oceanbase/obdiag --skill observer-sql-analysis -a codex`. Or copy the skill folder (plugins/agent/skills/observer-sql-analysis in oceanbase/obdiag) into .agents/skills/observer-sql-analysis in your project. Codex loads it when a task matches its description.

Can I use Observer SQL 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 oceanbase/obdiag --skill observer-sql-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/observer-sql-analysis, .gemini/skills/observer-sql-analysis, .github/skills/observer-sql-analysis and .opencode/skills/observer-sql-analysis in your project.

What does Observer SQL Analysis need to run?

SKILL.md names no scripts, command-line tools or credentials: Observer SQL Analysis is instructions for the agent only.

Does Observer SQL 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 Observer SQL 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 Observer SQL Analysis use?

Observer SQL Analysis is published under the MulanPSL-2.0 licence (the repository's licence).

How many tokens does Observer SQL Analysis use?

About 736 tokens (SKILL.md is roughly 2.9k 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 Observer SQL Analysis?

Skills that share tags, products or a category with Observer SQL Analysis: Evolving The Data Model (TriliumNext/Trilium, 38k stars), SQL Optimization Patterns (ynulihao/AgentSkillOS, 617 stars), SQL Portability (HL7/sql-on-fhir, 150 stars) and DB Migrations (kurealnum/dotfiles, 290 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Observer SQL Analysis?

oceanbase (a GitHub organization) maintains it in oceanbase/obdiag, which has 163 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on May 19, 2026.

Source: oceanbase/obdiag on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.