Chunking Form Grouping
hashgraph-online/awesome-codex-plugins
A skill your agent uses when designing or fixing long forms that ask the user for many fields — sign-up flows, profile setup, settings panels, checkout, intake forms, applications.
Apply Miller's Law — chunk information into groups of about four to fit working memory.
MITAuto-check passed
Install Millers Law
$ npx skills add Owl-Listener/designer-skills --skill millers-law -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Owl-Listener/designer-skills millers-law --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/Owl-Listener/designer-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/interaction-design/skills/millers-law .claude/skills/millers-law && 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 "millers-law" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-law into .claude/skills/millers-law/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "millers-law", 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/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-lawType 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 Owl-Listener/designer-skills --skill millers-law -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Owl-Listener/designer-skills millers-law --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/interaction-design/skills/millers-law .agents/skills/millers-law && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "millers-law" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-law into .agents/skills/millers-law/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "millers-law", 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 Owl-Listener/designer-skills --skill millers-law -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Owl-Listener/designer-skills millers-law --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/interaction-design/skills/millers-law .cursor/skills/millers-law && 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 "millers-law" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-law into .cursor/skills/millers-law/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "millers-law", 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/Owl-Listener/designer-skills.git --path interaction-design/skills/millers-law--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 Owl-Listener/designer-skills --skill millers-law -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Owl-Listener/designer-skills millers-law --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/interaction-design/skills/millers-law .gemini/skills/millers-law && 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 "millers-law" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-law into .gemini/skills/millers-law/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "millers-law", 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 Owl-Listener/designer-skills millers-lawInstalls 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 Owl-Listener/designer-skills --skill millers-law -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/interaction-design/skills/millers-law .github/skills/millers-law && 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 "millers-law" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-law into .github/skills/millers-law/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "millers-law", 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 Owl-Listener/designer-skills --skill millers-law -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Owl-Listener/designer-skills millers-law --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/interaction-design/skills/millers-law .opencode/skills/millers-law && 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 "millers-law" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/interaction-design/skills/millers-law into .opencode/skills/millers-law/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "millers-law", 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
millers-law- GitHub stars
- 2.9k
- Used in
- 1 other repo
- Token cost
- ~675 tokens
- SKILL.md length
- 370 words
- Files
- 1
- Skills in repo
- 107
- Repo updated
- First seen
- Licence
- MIT
At a glance
Apply Miller's Law — chunk information into groups of about four to fit working memory.
- Grouping fields
- SKILL.md covers What You Do, The Principle and Its Limits, Where Chunking Applies and Common Misapplications, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Millers Law is an agent skill from Owl-Listener/designer-skills. Apply Miller's Law — chunk information into groups of about four to fit working memory. Use when grouping fields, menu items, or steps. For reducing the number of choices offered, use hicks-law.
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.
The repository describes itself as: Designer Skills Collection: agentic skills, commands, and plugins for design — from research to systems, UI, interaction, and delivery. The licence is MIT.
When your agent uses it
- Grouping fields
Example prompts
- “/millers-law”
What it can do on your machine
Read from SKILL.md and the folder at commit 9a6930c. 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
Millers Law loads about 675 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 370 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 Owl-Listener/designer-skills at commit 9a6930c, republished under its MIT licence (© Owl-Listener). 370 words, ~675 tokens.
Download SKILL.mdSave it as
.claude/skills/millers-law/SKILL.md (or your agent's skills folder).- name
- millers-law
- description
- Apply Miller's Law — chunk information into groups of about four to fit working memory. Use when grouping fields, menu items, or steps. For reducing the number of choices offered, use `hicks-law`.
Miller's Law
You are an expert in cognitive psychology as it applies to information design and interface structure.
What You Do
You apply chunking and grouping strategies informed by working memory research to make interfaces easier to scan, understand, and recall.
The Principle and Its Limits
George Miller's 1956 paper proposed that working memory can hold 7 ± 2 items (5–9). This figure has been widely cited in UX design — and just as widely misapplied. More recent research (particularly Nelson Cowan, 2001) suggests the realistic limit for meaningful chunks in working memory is closer to 4 ± 1. The important nuance Miller himself made: the "7" applies to chunks, not raw items. A chunk is whatever unit has meaning to the person — a word, a concept, a familiar pattern. What this means for design:
- Grouping items into meaningful chunks reduces cognitive load regardless of the exact number
- The precise ceiling is less important than the principle: working memory is limited, and structure helps
- Don't cite "7 items" as a design rule; cite chunking as the strategy
Show full SKILL.md (196 more words)Show less
Where Chunking Applies
- Navigation: group menu items by category; flat lists of 10+ items are harder to scan than 3 groups of 3–4
- Forms: break long forms into sections with clear headings — each section should feel completeable as a unit
- Phone numbers and codes: formatted as chunks (e.g.
555-867-5309,XXXX-XXXXverification codes) for easier recall - Data tables: use visual grouping (alternating rows, section headers) to break long lists into scannable blocks
- Onboarding steps: show progress as 3–5 named phases rather than a raw step count of 12
- Feature lists and pricing: 3–5 bullet points per tier; beyond that, users stop reading
Common Misapplications
- Using "7 is the limit" to justify navigation menus of exactly 7 items
- Applying it to visual elements (colors, icons) where visual chunking works differently than verbal memory
- Ignoring that familiarity expands chunk size: expert users chunk more than novice users
Best Practices
- Structure first, count second — meaningful groupings matter more than hitting a number
- Use headings, whitespace, and visual dividers to make chunks explicit
- Test recall, not just comprehension — can users remember what options were available after navigating away?
- Adjust for user expertise: power users handle larger information density than first-time users
© Owl-Listener, 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 interaction-design/skills/millers-law of Owl-Listener/designer-skills.
Open the folder on GitHubat commit 9a6930c
Used in 1 other repository
We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in Owl-Listener/designer-skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Millers Law 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 |
|---|---|---|---|---|---|---|
| Millers Law this skillOwl-Listener/designer-skills | 2.9k | 1 repos | ~675 | Automated safety check: Pass | MIT | |
| Chunking Form Groupinghashgraph-online/awesome-codex-plugins | 1.3k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Groupsparcadei/Continuous-Claude-v3 | 3.9k | 1 repos | ~956 | Automated safety check: Notes | MIT | |
| Doordash Group Ordersdavila7/claude-code-templates | 33k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Chunkinghashgraph-online/awesome-codex-plugins | 1.3k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Profiling Threat Actor Groupsmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~1.8k | Automated safety check: Pass | Apache-2.0 |
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Groups
parcadei/Continuous-Claude-v3
Problem-solving strategies for groups in abstract algebra. An agent skill from parcadei/Continuous-Claude-v3.
Doordash Group Orders
davila7/claude-code-templates
Group food ordering through the DoorDash CLI (dd-cli) from a persistent team roster.
Chunking
hashgraph-online/awesome-codex-plugins
A skill your agent uses when splitting extracted text into chunks for LLM context windows or RAG ingestion.
Profiling Threat Actor Groups
mukul975/Anthropic-Cybersecurity-Skills
Develops comprehensive threat actor profiles for APT groups, criminal organizations, and hacktivist collectives by aggregating TTP documentation, historical campaign data, tooling fingerprints, and…
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Questions about Millers Law
What does Millers Law do?
Apply Miller's Law — chunk information into groups of about four to fit working memory. Millers Law is an agent skill from Owl-Listener/designer-skills. Apply Miller's Law — chunk information into groups of about four to fit working memory.
When should I use Millers Law?
Millers Law fits situations like: grouping fields.
How do I install Millers Law in Claude Code?
Run `npx skills add Owl-Listener/designer-skills --skill millers-law -a claude-code`. Or copy the skill folder (interaction-design/skills/millers-law in Owl-Listener/designer-skills) into .claude/skills/millers-law in your project. Claude Code loads it when a task matches its description.
How do I install Millers Law in Codex?
Run `npx skills add Owl-Listener/designer-skills --skill millers-law -a codex`. Or copy the skill folder (interaction-design/skills/millers-law in Owl-Listener/designer-skills) into .agents/skills/millers-law in your project. Codex loads it when a task matches its description.
Can I use Millers Law 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 Owl-Listener/designer-skills --skill millers-law -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/millers-law, .gemini/skills/millers-law, .github/skills/millers-law and .opencode/skills/millers-law in your project.
What does Millers Law need to run?
SKILL.md names no scripts, command-line tools or credentials: Millers Law is instructions for the agent only.
Does Millers Law 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 Millers Law 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 Millers Law use?
Millers Law 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 Millers Law use?
About 675 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 Millers Law?
Skills that share tags, products or a category with Millers Law: Chunking Form Grouping (hashgraph-online/awesome-codex-plugins, 1.3k stars), Groups (parcadei/Continuous-Claude-v3, 3.9k stars), Doordash Group Orders (davila7/claude-code-templates, 33k stars) and Chunking (hashgraph-online/awesome-codex-plugins, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Millers Law?
Owl-Listener (a GitHub user) maintains it in Owl-Listener/designer-skills, which has 2,871 GitHub stars. The repository holds 107 skills in this directory. The repository was last updated on September 5, 2026.
Source: Owl-Listener/designer-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.