Jeecg System
jeecgboot/skills
JeecgBoot 系统主数据查询与管理。Use when user asks to query/create/manage system master data, or says "查询角色", "查询用户", "查询部门", "查询字典", "创建字典", "创建角色", "查岗位", "查职务", "查租户", "查数据源", "查定时任务", "系统主数据", "query…
Writes a data contract — what a row means, which fields are features vs labels vs context vs excluded, over which time windows — and verifies every claim with a query.
Install Writing Data Contracts
$ npx skills add flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install flyrank-bih/flyrank-ml-internship-starter writing-data-contracts --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/flyrank-bih/flyrank-ml-internship-starter.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/writing-data-contracts .claude/skills/writing-data-contracts && 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 "writing-data-contracts" agent skill from https://github.com/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contracts into .claude/skills/writing-data-contracts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-data-contracts", 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/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contractsType 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 flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install flyrank-bih/flyrank-ml-internship-starter writing-data-contracts --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flyrank-bih/flyrank-ml-internship-starter.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/writing-data-contracts .agents/skills/writing-data-contracts && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "writing-data-contracts" agent skill from https://github.com/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contracts into .agents/skills/writing-data-contracts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-data-contracts", 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 flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install flyrank-bih/flyrank-ml-internship-starter writing-data-contracts --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flyrank-bih/flyrank-ml-internship-starter.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/writing-data-contracts .cursor/skills/writing-data-contracts && 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 "writing-data-contracts" agent skill from https://github.com/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contracts into .cursor/skills/writing-data-contracts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-data-contracts", 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/flyrank-bih/flyrank-ml-internship-starter.git --path skills/writing-data-contracts--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 flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install flyrank-bih/flyrank-ml-internship-starter writing-data-contracts --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flyrank-bih/flyrank-ml-internship-starter.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/writing-data-contracts .gemini/skills/writing-data-contracts && 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 "writing-data-contracts" agent skill from https://github.com/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contracts into .gemini/skills/writing-data-contracts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-data-contracts", 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 flyrank-bih/flyrank-ml-internship-starter writing-data-contractsInstalls 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 flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/flyrank-bih/flyrank-ml-internship-starter.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/writing-data-contracts .github/skills/writing-data-contracts && 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 "writing-data-contracts" agent skill from https://github.com/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contracts into .github/skills/writing-data-contracts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-data-contracts", 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 flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install flyrank-bih/flyrank-ml-internship-starter writing-data-contracts --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flyrank-bih/flyrank-ml-internship-starter.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/writing-data-contracts .opencode/skills/writing-data-contracts && 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 "writing-data-contracts" agent skill from https://github.com/flyrank-bih/flyrank-ml-internship-starter/tree/main/skills/writing-data-contracts into .opencode/skills/writing-data-contracts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-data-contracts", 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
writing-data-contracts- GitHub stars
- 140
- Token cost
- ~680 tokens
- SKILL.md length
- 380 words
- Files
- 1
- Skills in repo
- 13
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Writes a data contract — what a row means, which fields are features vs labels vs context vs excluded, over which time windows — and verifies every claim with a query.
- Works in 5 steps: Unit of analysis. One row = one WHAT? (a… → Time window. Which dates does each field… → Field classification. Every field you… → …
- Tasks that involve Data governance
- SKILL.md covers The contract, section by section, Verify every claim with a query, Traps that look innocent and How to verify
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Writing Data Contracts is an agent skill from flyrank-bih/flyrank-ml-internship-starter. Writes a data contract — what a row means, which fields are features vs labels vs context vs excluded, over which time windows — and verifies every claim with a query. Use before any feature building or modeling, or when results look wrong and the data definition is suspect.
Its SKILL.md is about 680 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 Data & Analytics, covering Data governance. The repository describes itself as: Starter repo for the FlyRank ML Internship - a runnable ML pipeline on real anonymized Google Search data, with Colab notebooks. Fork it, build your capstone in it.
When your agent uses it
- Tasks that involve Data governance
Example prompts
- “Use the writing-data-contracts skill to write a data contract — what a row means, which fields are features vs labels vs context vs excluded, over…”
- “/writing-data-contracts”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Unit of analysis. One row = one WHAT? (a page? a page-day? a client?) State it.
- Time window. Which dates does each field cover? Draw the windows if they differ.
- Field classification. Every field you may touch goes in exactly one bucket
- Missing values. Which fields go blank, how often, and is the missingness random or does it
- Output. What the analysis hands to the human, in one sentence.
What it can do on your machine
Read from SKILL.md and the folder at commit 882b73e. 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
Writing Data Contracts loads about 680 tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 380 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 380 words (~680 tokens).
“Most weak analysis fails here, before any model: nobody wrote down what a row means. A data contract is that write-down — and a contract your code has checked, not just stated.”
- name
- writing-data-contracts
Files
Just SKILL.md in skills/writing-data-contracts of flyrank-bih/flyrank-ml-internship-starter.
Open the folder on GitHubat commit 882b73e
Compare with similar skills
Writing Data Contracts 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 |
|---|---|---|---|---|---|---|
| Writing Data Contracts this skillflyrank-bih/flyrank-ml-internship-starter | 140 | — | ~680 | Automated safety check: Pass | Custom licence | |
| Jeecg Systemjeecgboot/skills | 239 | — | ~3.2k | Automated safety check: Pass | Apache-2.0 | |
| Openalgo Chart Indicatormarketcalls/openalgo-charts | 146 | — | ~3.4k | Automated safety check: Notes | Apache-2.0 | |
| Data Quality Frameworkswshobson/agents | 40k | 11 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Research Data Feasibility and Leakage ChecksLight0305/Light-skills | 640 | — | ~4.9k | Automated safety check: Pass | MIT | |
| Annotating Task Lineageastronomer/agents | 451 | — | ~2.8k | Automated safety check: Pass | Apache-2.0 |
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Data Quality Frameworks
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Related
Categories
Questions about Writing Data Contracts
What does Writing Data Contracts do?
Writes a data contract — what a row means, which fields are features vs labels vs context vs excluded, over which time windows — and verifies every claim with a query. Writing Data Contracts is an agent skill from flyrank-bih/flyrank-ml-internship-starter. Writes a data contract — what a row means, which fields are features vs labels vs context vs excluded, over which time windows — and verifies every claim with a query.
When should I use Writing Data Contracts?
Writing Data Contracts fits situations like: tasks that involve Data governance.
How do I install Writing Data Contracts in Claude Code?
Run `npx skills add flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a claude-code`. Or copy the skill folder (skills/writing-data-contracts in flyrank-bih/flyrank-ml-internship-starter) into .claude/skills/writing-data-contracts in your project. Claude Code loads it when a task matches its description.
How do I install Writing Data Contracts in Codex?
Run `npx skills add flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a codex`. Or copy the skill folder (skills/writing-data-contracts in flyrank-bih/flyrank-ml-internship-starter) into .agents/skills/writing-data-contracts in your project. Codex loads it when a task matches its description.
Can I use Writing Data Contracts 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 flyrank-bih/flyrank-ml-internship-starter --skill writing-data-contracts -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/writing-data-contracts, .gemini/skills/writing-data-contracts, .github/skills/writing-data-contracts and .opencode/skills/writing-data-contracts in your project.
What does Writing Data Contracts need to run?
SKILL.md names no scripts, command-line tools or credentials: Writing Data Contracts is instructions for the agent only.
Does Writing Data Contracts 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 Writing Data Contracts 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 Writing Data Contracts use?
Writing Data Contracts 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 Writing Data Contracts use?
About 680 tokens (SKILL.md is roughly 2.7k 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 Writing Data Contracts?
Skills that share tags, products or a category with Writing Data Contracts: Jeecg System (jeecgboot/skills, 239 stars), Openalgo Chart Indicator (marketcalls/openalgo-charts, 146 stars), Data Quality Frameworks (wshobson/agents, 40k stars) and Research Data Feasibility and Leakage Checks (Light0305/Light-skills, 640 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Writing Data Contracts?
flyrank-bih (a GitHub organization) maintains it in flyrank-bih/flyrank-ml-internship-starter, which has 140 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on August 20, 2026.
Source: flyrank-bih/flyrank-ml-internship-starter on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.