Chdb SQL
vemetric/vemetric
A skill your agent uses when the user wants to run SQL — especially analytical SQL — on local files (parquet/csv/json), URLs, S3 paths, or remote databases (Postgres, MySQL, MongoDB, ClickHouse…
Expert system for generating, validating, and optimizing ClickHouse SQL.
Install SQL Expert
$ npx skills add FrankChen021/datastoria --skill sql-expert -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install FrankChen021/datastoria sql-expert --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/FrankChen021/datastoria.git skills-src && mkdir -p .claude/skills && cp -r skills-src/resources/skills/sql-expert .claude/skills/sql-expert && 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 "sql-expert" agent skill from https://github.com/FrankChen021/datastoria/tree/master/resources/skills/sql-expert into .claude/skills/sql-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sql-expert", 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/FrankChen021/datastoria/tree/master/resources/skills/sql-expertType 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 FrankChen021/datastoria --skill sql-expert -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install FrankChen021/datastoria sql-expert --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FrankChen021/datastoria.git skills-src && mkdir -p .agents/skills && cp -r skills-src/resources/skills/sql-expert .agents/skills/sql-expert && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "sql-expert" agent skill from https://github.com/FrankChen021/datastoria/tree/master/resources/skills/sql-expert into .agents/skills/sql-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sql-expert", 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 FrankChen021/datastoria --skill sql-expert -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install FrankChen021/datastoria sql-expert --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FrankChen021/datastoria.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/resources/skills/sql-expert .cursor/skills/sql-expert && 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 "sql-expert" agent skill from https://github.com/FrankChen021/datastoria/tree/master/resources/skills/sql-expert into .cursor/skills/sql-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sql-expert", 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/FrankChen021/datastoria.git --path resources/skills/sql-expert--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 FrankChen021/datastoria --skill sql-expert -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install FrankChen021/datastoria sql-expert --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FrankChen021/datastoria.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/resources/skills/sql-expert .gemini/skills/sql-expert && 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 "sql-expert" agent skill from https://github.com/FrankChen021/datastoria/tree/master/resources/skills/sql-expert into .gemini/skills/sql-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sql-expert", 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 FrankChen021/datastoria sql-expertInstalls 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 FrankChen021/datastoria --skill sql-expert -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/FrankChen021/datastoria.git skills-src && mkdir -p .github/skills && cp -r skills-src/resources/skills/sql-expert .github/skills/sql-expert && 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 "sql-expert" agent skill from https://github.com/FrankChen021/datastoria/tree/master/resources/skills/sql-expert into .github/skills/sql-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sql-expert", 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 FrankChen021/datastoria --skill sql-expert -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install FrankChen021/datastoria sql-expert --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/FrankChen021/datastoria.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/resources/skills/sql-expert .opencode/skills/sql-expert && 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 "sql-expert" agent skill from https://github.com/FrankChen021/datastoria/tree/master/resources/skills/sql-expert into .opencode/skills/sql-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sql-expert", 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
sql-expert- GitHub stars
- 327
- Token cost
- ~919 tokens
- SKILL.md length
- 467 words
- Files
- 1
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Expert system for generating, validating, and optimizing ClickHouse SQL.
- Works in 4 steps: Schema Discovery & Context → Syntax Rules (The Grammar) → Optimization Rules (Best Practices) → …
- Tasks that involve SQL
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Data warehousing
What it does
SQL Expert is an agent skill from FrankChen021/datastoria. Expert system for generating, validating, and optimizing ClickHouse SQL. Use this when the user needs data, queries, or analysis.
Its SKILL.md is about 920 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 Data warehousing. It works with SQL and ClickHouse. The repository describes itself as: AI-native ClickHouse console for your cluster diagnostics and query generation, optimization and data visualization.
When your agent uses it
- Tasks that involve SQL
- Tasks that involve Data warehousing
Example prompts
- “/sql-expert”
Workflow steps
4 steps, taken from the step headings in SKILL.md.
- Schema Discovery & Context
- Syntax Rules (The Grammar)
- Optimization Rules (Best Practices)
- Execution Workflow
What it can do on your machine
Read from SKILL.md and the folder at commit d0859a2. 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
SQL Expert loads about 919 tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 467 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 467 words (~919 tokens).
- name
- sql-expert
- metadata.author
- System
- metadata.disable-slash-command
- true
Files
Just SKILL.md in resources/skills/sql-expert of FrankChen021/datastoria.
Open the folder on GitHubat commit d0859a2
Compare with similar skills
SQL Expert 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 |
|---|---|---|---|---|---|---|
| SQL Expert this skillFrankChen021/datastoria | 327 | — | ~919 | Automated safety check: Pass | Custom licence | |
| Chdb SQLvemetric/vemetric | 394 | 1 repos | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Modelersidequery/sidemantic | 129 | — | ~4.2k | Automated safety check: Pass | Apache-2.0 | |
| Querying Tempotempoxyz/tidx | 107 | — | ~3.1k | Automated safety check: Pass | MIT | |
| Semantic Analystsidequery/sidemantic | 129 | — | ~982 | Automated safety check: Pass | AGPL-3.0 | |
| Pytorch Clickhousepytorch/test-infra | 113 | — | ~2.8k | Automated safety check: Pass | Custom licence |
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Related
Works with
Categories
Questions about SQL Expert
What does SQL Expert do?
Expert system for generating, validating, and optimizing ClickHouse SQL. SQL Expert is an agent skill from FrankChen021/datastoria. Expert system for generating, validating, and optimizing ClickHouse SQL.
When should I use SQL Expert?
SQL Expert fits situations like: tasks that involve SQL; tasks that involve Data warehousing.
How do I install SQL Expert in Claude Code?
Run `npx skills add FrankChen021/datastoria --skill sql-expert -a claude-code`. Or copy the skill folder (resources/skills/sql-expert in FrankChen021/datastoria) into .claude/skills/sql-expert in your project. Claude Code loads it when a task matches its description.
How do I install SQL Expert in Codex?
Run `npx skills add FrankChen021/datastoria --skill sql-expert -a codex`. Or copy the skill folder (resources/skills/sql-expert in FrankChen021/datastoria) into .agents/skills/sql-expert in your project. Codex loads it when a task matches its description.
Can I use SQL Expert 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 FrankChen021/datastoria --skill sql-expert -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sql-expert, .gemini/skills/sql-expert, .github/skills/sql-expert and .opencode/skills/sql-expert in your project.
What does SQL Expert need to run?
SKILL.md names no scripts, command-line tools or credentials: SQL Expert is instructions for the agent only.
Does SQL Expert 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 SQL Expert 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 SQL Expert use?
SQL Expert has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does SQL Expert use?
About 919 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 SQL Expert?
Skills that share tags, products or a category with SQL Expert: Chdb SQL (vemetric/vemetric, 394 stars), Modeler (sidequery/sidemantic, 129 stars), Querying Tempo (tempoxyz/tidx, 107 stars) and Semantic Analyst (sidequery/sidemantic, 129 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains SQL Expert?
FrankChen021 (a GitHub user) maintains it in FrankChen021/datastoria, which has 327 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on July 21, 2026.
Source: FrankChen021/datastoria on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.