Payload
payloadcms/payload
A skill your agent uses when working with Payload projects (payload.config.ts, collections, fields, hooks, access control, Payload API).
A skill your agent uses when reviewing form components, API payloads, or client-side storage to identify fields that are collected but not consumed by a stated feature.
MITAuto-check passed
Install Data Minimisation
$ npx skills add thedaviddias/Front-End-Checklist --skill data-minimisation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist data-minimisation --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/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/data-minimisation .claude/skills/data-minimisation && 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 "data-minimisation" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisation into .claude/skills/data-minimisation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-minimisation", 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/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisationType 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 thedaviddias/Front-End-Checklist --skill data-minimisation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist data-minimisation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/data-minimisation .agents/skills/data-minimisation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "data-minimisation" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisation into .agents/skills/data-minimisation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-minimisation", 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 thedaviddias/Front-End-Checklist --skill data-minimisation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist data-minimisation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/data-minimisation .cursor/skills/data-minimisation && 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 "data-minimisation" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisation into .cursor/skills/data-minimisation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-minimisation", 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/thedaviddias/Front-End-Checklist.git --path skills/data-minimisation--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 thedaviddias/Front-End-Checklist --skill data-minimisation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist data-minimisation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/data-minimisation .gemini/skills/data-minimisation && 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 "data-minimisation" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisation into .gemini/skills/data-minimisation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-minimisation", 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 thedaviddias/Front-End-Checklist data-minimisationInstalls 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 thedaviddias/Front-End-Checklist --skill data-minimisation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/data-minimisation .github/skills/data-minimisation && 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 "data-minimisation" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisation into .github/skills/data-minimisation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-minimisation", 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 thedaviddias/Front-End-Checklist --skill data-minimisation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thedaviddias/Front-End-Checklist data-minimisation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/data-minimisation .opencode/skills/data-minimisation && 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 "data-minimisation" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/data-minimisation into .opencode/skills/data-minimisation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-minimisation", 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
data-minimisation- GitHub stars
- 74k
- Token cost
- ~607 tokens
- SKILL.md length
- 282 words
- Files
- 2 (incl. references)
- Skills in repo
- 390
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when reviewing form components, API payloads, or client-side storage to identify fields that are collected but not consumed by a stated feature.
- Reviewing form components
- SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Client-side storage to identify fields that are collected but not consumed by a stated feature
What it does
Data Minimisation is an agent skill from thedaviddias/Front-End-Checklist. Use when reviewing form components, API payloads, or client-side storage to identify fields that are collected but not consumed by a stated feature.
Its SKILL.md is about 610 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).
The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.
When your agent uses it
- Reviewing form components
- Client-side storage to identify fields that are collected but not consumed by a stated feature
Example prompts
- “/data-minimisation”
What it can do on your machine
Read from SKILL.md and the folder at commit e8d14d0. 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
Links to these hosts (documentation or services it may open):
frontendchecklist.io
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
Data Minimisation loads about 607 tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 42 tokens; SKILL.md has 282 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 thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 282 words, ~607 tokens.
Download SKILL.mdSave it as
.claude/skills/data-minimisation/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- data-minimisation
- description
- Use when reviewing form components, API payloads, or client-side storage to identify fields that are collected but not consumed by a stated feature.
- metadata.category
- privacy
- metadata.priority
- medium
- metadata.difficulty
- intermediate
- metadata.estimatedTime
- 30
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/privacy/data-minimisation
Collect only the minimum personal data necessary
Collecting more data than necessary increases the blast radius of a breach, exposes your organisation to regulatory fines, and erodes user trust. GDPR Article 5(1)(c) makes data minimisation a legal obligation for any controller processing EU residents' data — but it is also sound engineering practice regardless of jurisdiction.
Quick Reference
- Collect only fields your application actually needs to function
- Document the purpose for every piece of personal data you store
- Prefer anonymous or pseudonymous data over identifiable data where possible
- Clear client-side storage (localStorage, sessionStorage, cookies) on logout or after a defined retention window
- Never send raw PII to analytics, monitoring, or client-side logs
Check
Audit the form fields, API request bodies, and client-side storage keys in this codebase to identify any personal data collected beyond what the stated feature requires. Also inspect analytics and logging payloads for raw email addresses, names, phone numbers, or full query strings that leak PII.
Fix
Remove or anonymise form fields, storage keys, and API parameters that collect personal data not consumed by a specific, documented feature purpose. Replace raw personal identifiers in analytics and logs with pseudonymous IDs and define a retention window for each stored value.
Explain
Explain the GDPR data minimisation principle and how over-collection of personal data increases breach impact and regulatory risk.
Code Review
Review form components, fetch/axios calls, and storage utilities for personal data fields. Flag any field or key that is collected but not read by an active feature, and suggest anonymisation or removal. Flag analytics and monitoring payloads that include raw PII or have no stated retention.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/privacy/data-minimisation
© thedaviddias, 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 1 other file (references) in skills/data-minimisation of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Data Minimisation 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 |
|---|---|---|---|---|---|---|
| Data Minimisation this skillthedaviddias/Front-End-Checklist | 74k | — | ~607 | Automated safety check: Pass | MIT | |
| Payloadpayloadcms/payload | 45k | 5 repos | ~6.2k | Automated safety check: Pass | MIT | |
| Form Fillingasgeirtj/system_prompts_leaks | 69k | — | ~400 | Automated safety check: Pass | CC0-1.0 | |
| Formstrycompai/comp | 2k | — | ~1k | Automated safety check: Pass | AGPL-3.0 | |
| Payload Accessibilitypayloadcms/payload | 45k | — | ~808 | Automated safety check: Pass | MIT | |
| Browser Form Fillruvnet/ruflo | 74k | — | ~748 | Automated safety check: Notes | MIT |
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- Official
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Questions about Data Minimisation
What does Data Minimisation do?
A skill your agent uses when reviewing form components, API payloads, or client-side storage to identify fields that are collected but not consumed by a stated feature. Data Minimisation is an agent skill from thedaviddias/Front-End-Checklist. Use when reviewing form components, API payloads, or client-side storage to identify fields that are collected but not consumed by a stated feature.
When should I use Data Minimisation?
Data Minimisation fits situations like: reviewing form components; client-side storage to identify fields that are collected but not consumed by a stated feature.
How do I install Data Minimisation in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill data-minimisation -a claude-code`. Or copy the skill folder (skills/data-minimisation in thedaviddias/Front-End-Checklist) into .claude/skills/data-minimisation in your project. Claude Code loads it when a task matches its description.
How do I install Data Minimisation in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill data-minimisation -a codex`. Or copy the skill folder (skills/data-minimisation in thedaviddias/Front-End-Checklist) into .agents/skills/data-minimisation in your project. Codex loads it when a task matches its description.
Can I use Data Minimisation 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 thedaviddias/Front-End-Checklist --skill data-minimisation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/data-minimisation, .gemini/skills/data-minimisation, .github/skills/data-minimisation and .opencode/skills/data-minimisation in your project.
What does Data Minimisation need to run?
SKILL.md names no scripts, command-line tools or credentials: Data Minimisation is instructions for the agent only.
Does Data Minimisation access the network?
SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.
Is Data Minimisation 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 Data Minimisation use?
Data Minimisation 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 Data Minimisation use?
About 607 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.5k tokens, read only when the agent opens those files.
What are the alternatives to Data Minimisation?
Skills that share tags, products or a category with Data Minimisation: Payload (payloadcms/payload, 45k stars), Form Filling (asgeirtj/system_prompts_leaks, 69k stars), Forms (trycompai/comp, 2k stars) and Payload Accessibility (payloadcms/payload, 45k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Data Minimisation?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,412 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.
Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.