Diagram Design
cathrynlavery/diagram-design
Creates branded diagrams, from architecture, flowchart and sequence to charts and maps, as self-contained HTML with inline SVG, with import from draw.io, Mermaid and Excalidraw.
Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork…
Install Create Skill
$ npx skills add tamdogood/builder-essential-skills --skill create-skill -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install tamdogood/builder-essential-skills create-skill --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/tamdogood/builder-essential-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/create-skill .claude/skills/create-skill && 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 "create-skill" agent skill from https://github.com/tamdogood/builder-essential-skills/tree/main/skills/create-skill into .claude/skills/create-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-skill", 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/tamdogood/builder-essential-skills/tree/main/skills/create-skillType 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 tamdogood/builder-essential-skills --skill create-skill -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install tamdogood/builder-essential-skills create-skill --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tamdogood/builder-essential-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/create-skill .agents/skills/create-skill && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "create-skill" agent skill from https://github.com/tamdogood/builder-essential-skills/tree/main/skills/create-skill into .agents/skills/create-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-skill", 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 tamdogood/builder-essential-skills --skill create-skill -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install tamdogood/builder-essential-skills create-skill --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tamdogood/builder-essential-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/create-skill .cursor/skills/create-skill && 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 "create-skill" agent skill from https://github.com/tamdogood/builder-essential-skills/tree/main/skills/create-skill into .cursor/skills/create-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-skill", 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/tamdogood/builder-essential-skills.git --path skills/create-skill--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 tamdogood/builder-essential-skills --skill create-skill -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install tamdogood/builder-essential-skills create-skill --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tamdogood/builder-essential-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/create-skill .gemini/skills/create-skill && 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 "create-skill" agent skill from https://github.com/tamdogood/builder-essential-skills/tree/main/skills/create-skill into .gemini/skills/create-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-skill", 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 tamdogood/builder-essential-skills create-skillInstalls 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 tamdogood/builder-essential-skills --skill create-skill -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/tamdogood/builder-essential-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/create-skill .github/skills/create-skill && 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 "create-skill" agent skill from https://github.com/tamdogood/builder-essential-skills/tree/main/skills/create-skill into .github/skills/create-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-skill", 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 tamdogood/builder-essential-skills --skill create-skill -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install tamdogood/builder-essential-skills create-skill --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tamdogood/builder-essential-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/create-skill .opencode/skills/create-skill && 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 "create-skill" agent skill from https://github.com/tamdogood/builder-essential-skills/tree/main/skills/create-skill into .opencode/skills/create-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-skill", 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
create-skill- GitHub stars
- 219
- Token cost
- ~1.4k tokens
- SKILL.md length
- 639 words
- Files
- 4 (incl. references)
- Skills in repo
- 18
- Repo updated
- First seen
- Licence
- MIT
At a glance
Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork…
- Works in 7 steps: Orient the repository. Read AGENTS.md,… → Define the contract. Extract the skill… → Choose the smallest useful structure.… → …
- The user asks to create a new skill
- SKILL.md covers Workflow, Skill content requirements, Artwork routing and Validation commands
- Calls git, python3 and npm
What it does
Create Skill is an agent skill from tamdogood/builder-essential-skills. Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork, README links, discovery metadata, and validation. Use when the user asks to create a new skill, add a skill to this collection, turn a workflow into a reusable skill, or make a skill's documentation and artwork consistent with the repository.
Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `README.md`, `agents/openai.yaml` and `references/artwork.md`).
It sits in Development, covering Technical documentation. The repository describes itself as: A repository for skills that are essential to my daily work. The licence is MIT.
When your agent uses it
- The user asks to create a new skill
- Add a skill to this collection
- Turn a workflow into a reusable skill
- Make a skills documentation and artwork consistent with the repository
Example prompts
- “/create-skill”
Requirements
- Python 3
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Orient the repository. Read AGENTS.md, the root README.md, the nearest existing skill with a similar purpose, and any local lessons file…
- Define the contract. Extract the skill slug, purpose, audience, trigger phrases, inputs, outputs, and acceptance checks from the request…
- Choose the smallest useful structure. Create only the resources the skill needs
- Write the skill. Use imperative instructions. State the decision points, required tools, file paths, invariants, failure handling, and…
- Create the required artwork. In this repository, every new skill needs assets/skill-cards/.svg and a linked row in the root README's Pick…
- Wire every discovery surface. Update all surfaces that explicitly enumerate skills: the root README card table, the skill README…
- Validate before handoff. Run the skill validator, parse the SVG, inspect the rendered card and banner, check every new README link, run…
What it can do on your machine
Read from SKILL.md and the folder at commit 1be9984. 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
Shell commands in SKILL.md call:
gitpython3npm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git and npm, which can reach the network depending on how they are called.
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
Create Skill loads about 1.4k tokens when it runs, and up to ~3.4k if it reads all its reference files. Until then it costs about 113 tokens; SKILL.md has 639 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 tamdogood/builder-essential-skills at commit 1be9984, republished under its MIT licence (© tamdogood). 639 words, ~1,357 tokens.
Download SKILL.mdSave it as
.claude/skills/create-skill/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- create-skill
- description
- Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork, README links, discovery metadata, and validation. Use when the user asks to create a new skill, add a skill to this collection, turn a workflow into a reusable skill, or make a skill's documentation and artwork consistent with the repository.
Create Skill
Turn a skill idea into a complete, discoverable, and shippable skill folder. Treat the skill instructions, metadata, artwork, README wiring, and validation as one deliverable.
Workflow
Orient the repository. Read
AGENTS.md, the rootREADME.md, the nearest existing skill with a similar purpose, and any local lessons file. Inspectpackage.json,skills.sh.json, the installer, and the existingassets/skill-cards/andassets/skill-banners/conventions before editing.Define the contract. Extract the skill slug, purpose, audience, trigger phrases, inputs, outputs, and acceptance checks from the request. Normalize the slug to lowercase hyphen-case. Preserve the user's terminology, but make the frontmatter description explicit about both the capability and the situations that should trigger it.
Choose the smallest useful structure. Create only the resources the skill needs:
skills/<slug>/SKILL.mdfor the core workflow and routing rules.skills/<slug>/agents/openai.yamlfor display metadata and an explicit$<slug>default prompt.skills/<slug>/references/for detailed domain guidance that should load progressively.skills/<slug>/scripts/only for deterministic, repeatable automation.skills/<slug>/assets/only for files the skill will reuse in its outputs.skills/<slug>/README.mdbecause this repository documents every published skill.
Keep
SKILL.mdunder 500 lines. Put deep specifications and long examples in one-level-deep references and link them directly from the skill.Write the skill. Use imperative instructions. State the decision points, required tools, file paths, invariants, failure handling, and verification commands another agent cannot safely infer. Prefer a short workflow in
SKILL.mdand conditional links such asreferences/artwork.mdfor specialized work.Create the required artwork. In this repository, every new skill needs
assets/skill-cards/<slug>.svgand a linked row in the root README's Pick a skill table. When the collection uses cinematic banners, also createassets/skill-banners/<slug>.webpand use the banner in the root and skill READMEs. Read references/artwork.md before creating either asset.Wire every discovery surface. Update all surfaces that explicitly enumerate skills: the root README card table, the skill README,
skills.sh.jsongroupings, and any registry or installer allowlist discovered during orientation. Do not invent a new registry file. Confirm thatpackage.jsonalready includes theskills/andassets/trees; change it only if the package would otherwise omit the new files.Validate before handoff. Run the skill validator, parse the SVG, inspect the rendered card and banner, check every new README link, run the repository test suite, and run
git diff --check. Review the diff for stale names, placeholder text, missing metadata, broken relative paths, untracked required assets, and accidental unrelated edits.
Show full SKILL.md (239 more words)Show less
Skill content requirements
Include these sections when relevant:
- Scope and trigger behavior: what the skill handles and what it should not handle.
- Inputs and outputs: expected files, links, user decisions, and final artifacts.
- Workflow: the smallest reliable sequence, with explicit branch points.
- Resources: when to read each reference or run each script.
- Validation: concrete commands and visual or semantic acceptance checks.
- Failure handling: what to do when a tool, dependency, reference, or user choice is missing.
Never leave TODO markers, template prose, guessed tool names, or unsupported claims in a published skill. Avoid duplicating long reference material in SKILL.md.
Artwork routing
Use the built-in image-generation tool for a new raster banner. First inspect two or more existing banners and any user-provided reference images. Treat references as style and composition guidance, not as content to copy. Generate a wide cinematic scene with exact title text only when the tool can render it reliably; inspect the result and iterate on one targeted issue at a time. Save the final project asset as WebP and keep the SVG card deterministic and accessible.
For the detailed visual system, prompt template, composition rules, conversion commands, and review checklist, read references/artwork.md.
Validation commands
From the repository root, adapt these commands to the local toolchain:
python3 "${CODEX_HOME:-$HOME/.codex}/skills/.system/skill-creator/scripts/quick_validate.py" skills/<slug>
xmllint --noout assets/skill-cards/<slug>.svg
npm test
git diff --checkIf a command is unavailable, use the repository's documented equivalent and report the substitution. Do not call the work complete while required files are untracked or a validation check is red.
© tamdogood, 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 3 other files (references) in skills/create-skill of tamdogood/builder-essential-skills.
- SKILL.md
- README.md
- agents/openai.yaml
- references/artwork.md
Open the folder on GitHubat commit 1be9984
Compare with similar skills
Create Skill 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 |
|---|---|---|---|---|---|---|
| Create Skill this skilltamdogood/builder-essential-skills | 219 | — | ~1.4k | Automated safety check: Pass | MIT | |
| Diagram Designcathrynlavery/diagram-design | 45k | 1 repos | ~7.5k | Automated safety check: Pass | MIT | |
| Simple Englishmoeru-ai/airi | 50k | 2 repos | ~4.6k | Automated safety check: Pass | MIT | |
| Get API Docs with chubandrewyng/context-hub | 14k | 2 repos | ~775 | Automated safety check: Pass | MIT | |
| Doc SyncJetBrains/ideavim | 10k | 2 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Mailspring App ScreenshotsFoundry376/Mailspring | 18k | — | ~1.5k | Automated safety check: Pass | GPL-3.0 |
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Fetches current documentation for third-party APIs and SDKs with the chub CLI before the agent writes code against them, instead of relying on remembered API shapes.
- Official
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Keeps IdeaVim documentation in sync with code changes. An agent skill from JetBrains/ideavim.
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Categories
Questions about Create Skill
What does Create Skill do?
Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork…. Create Skill is an agent skill from tamdogood/builder-essential-skills. Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork, README links, discovery metadata, and validation.
When should I use Create Skill?
Create Skill fits situations like: the user asks to create a new skill; add a skill to this collection; turn a workflow into a reusable skill; make a skills documentation and artwork consistent with the repository.
How do I install Create Skill in Claude Code?
Run `npx skills add tamdogood/builder-essential-skills --skill create-skill -a claude-code`. Or copy the skill folder (skills/create-skill in tamdogood/builder-essential-skills) into .claude/skills/create-skill in your project. Claude Code loads it when a task matches its description.
How do I install Create Skill in Codex?
Run `npx skills add tamdogood/builder-essential-skills --skill create-skill -a codex`. Or copy the skill folder (skills/create-skill in tamdogood/builder-essential-skills) into .agents/skills/create-skill in your project. Codex loads it when a task matches its description.
Can I use Create Skill 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 tamdogood/builder-essential-skills --skill create-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/create-skill, .gemini/skills/create-skill, .github/skills/create-skill and .opencode/skills/create-skill in your project.
What does Create Skill need to run?
Going by SKILL.md and its folder, Create Skill needs the command-line tools its instructions call (git, python3 and npm). Our summary lists: Python 3.
Does Create Skill access the network?
SKILL.md contains no URLs. Its commands use git and npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Create Skill 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 Create Skill use?
Create Skill 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 Create Skill use?
About 1.4k tokens (SKILL.md is roughly 5.4k 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 2.1k tokens, read only when the agent opens those files.
What are the alternatives to Create Skill?
Skills that share tags, products or a category with Create Skill: Diagram Design (cathrynlavery/diagram-design, 45k stars), Simple English (moeru-ai/airi, 50k stars), Get API Docs with chub (andrewyng/context-hub, 14k stars) and Doc Sync (JetBrains/ideavim, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Create Skill?
tamdogood (a GitHub user) maintains it in tamdogood/builder-essential-skills, which has 219 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on August 16, 2026.
Source: tamdogood/builder-essential-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.