Skill Creator
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
Creates new skills from templates via guided workflow. An agent skill from softspark/ai-toolkit.
$ npx skills add softspark/ai-toolkit --skill skill-creator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install softspark/ai-toolkit skill-creator --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/softspark/ai-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/app/skills/skill-creator .claude/skills/skill-creator && 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 "skill-creator" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/skill-creator into .claude/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-creator", 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/softspark/ai-toolkit/tree/main/app/skills/skill-creatorType 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 softspark/ai-toolkit --skill skill-creator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install softspark/ai-toolkit skill-creator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/app/skills/skill-creator .agents/skills/skill-creator && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "skill-creator" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/skill-creator into .agents/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-creator", 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 softspark/ai-toolkit --skill skill-creator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install softspark/ai-toolkit skill-creator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/app/skills/skill-creator .cursor/skills/skill-creator && 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 "skill-creator" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/skill-creator into .cursor/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-creator", 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/softspark/ai-toolkit.git --path app/skills/skill-creator--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 softspark/ai-toolkit --skill skill-creator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install softspark/ai-toolkit skill-creator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/app/skills/skill-creator .gemini/skills/skill-creator && 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 "skill-creator" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/skill-creator into .gemini/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-creator", 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 softspark/ai-toolkit skill-creatorInstalls 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 softspark/ai-toolkit --skill skill-creator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/app/skills/skill-creator .github/skills/skill-creator && 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 "skill-creator" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/skill-creator into .github/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-creator", 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 softspark/ai-toolkit --skill skill-creator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install softspark/ai-toolkit skill-creator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/app/skills/skill-creator .opencode/skills/skill-creator && 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 "skill-creator" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/skill-creator into .opencode/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-creator", 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.
skill-creatorCreates new skills from templates via guided workflow. An agent skill from softspark/ai-toolkit.
Skill Creator is an agent skill from softspark/ai-toolkit. Creates new skills from templates via guided workflow. Triggers: new skill, create skill, skill scaffold, skill template.
Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files (for example `templates/reasoning-engine/assets/example.json` and `templates/reasoning-engine/search.py`).
It sits in Agent Workflows, covering Skill authoring. The repository describes itself as: Professional-grade AI coding toolkit: 94 skills, 44 agents, multi-platform (Claude, Cursor, Windsurf, Copilot, Gemini, Cline, Roo Code, Aider, Augment, Antigravity, Codex CLI… The licence is Apache-2.0.
6 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit d64db2b. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditBashGrepGlobFrom allowed-tools in the SKILL.md frontmatter.
Ships script files (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Links to these hosts (documentation or services it may open):
code.claude.comagentskills.ioFrom URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Skill Creator loads about 2.4k tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 1,004 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.
The automated check noted patterns worth knowing about, such as sudo or a known installer.
allowed-tools: Read, Write, Edit, Bash, Grep, GlobAutomated 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.
The full file from softspark/ai-toolkit at commit d64db2b, republished under its Apache-2.0 licence (© softspark). 1,004 words, ~2,381 tokens.
.claude/skills/skill-creator/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.$ARGUMENTS
Create a new skill following the Agent Skills standard.
This table describes Claude Code skill fields. ai-toolkit requires name and
description for portable catalog entries even though Claude Code can infer them.
Only set model or effort when the skill deliberately needs an approved
override. Omission inherits the session choice in Claude Code. Check supported
effort levels for the selected model; these fields do not configure Codex or
Copilot reasoning. Refer to kb/reference/model-compatibility.md for the current
client/API boundaries and verify actual account availability before pinning IDs.
| Field | Type | Required | Description |
|---|---|---|---|
name | string | yes | Lowercase, hyphens only, max 64 chars |
description | string | yes | Third person, max 1024 chars, include key terms |
effort | low/medium/high/xhigh/max | no | Override effort for the invoking turn; supported levels depend on the model |
disable-model-invocation | bool | no | true = only user can trigger (task skills) |
user-invocable | bool | no | false = knowledge skill, Claude auto-loads |
allowed-tools | string or YAML list | no | Pre-approve tools for the invoking turn; does not restrict the available tools |
disallowed-tools | string or YAML list | no | Remove tools for the invoking turn |
model | string | no | Override the model for the invoking turn, or use inherit |
context | string | no | fork to run in isolated subagent |
agent | string | no | Agent type to use when context: fork |
argument-hint | string | no | Shown in autocomplete, e.g. "[target]" |
arguments | string or YAML list | no | Named positional arguments, substituted as $name in the body |
when_to_use | string | no | Additional trigger context appended to the description |
background | bool | no | With context: fork, false waits for the subagent result; default true |
hooks | object | no | Hooks registered at invocation and retained for the session; once limits a handler to one run |
paths | string or YAML list | no | File globs limiting automatic activation |
shell | bash/powershell | no | Shell for dynamic context commands |
metadata | object | no | Custom metadata for external tooling |
license | string | no | Skill license |
compatibility | string | no | Runtime requirements, up to 500 characters |
disallowedTools, maxTurns, memory, and skills belong to agent frontmatter,
not skill frontmatter. Put them on the agent referenced by a forked skill.
Direct claude.ai skill uploads and the Skills API accept only name, description,
license, compatibility, metadata, and allowed-tools; Claude Code plugin
skills support the full table. See the
official skill reference
(reviewed 2026-09-23).
| Type | When to use | Key fields |
|---|---|---|
| Task | User-triggered actions with side effects (build, deploy, commit) | disable-model-invocation: true, allowed-tools |
| Hybrid | Both user and Claude invoke (review, analyze) | defaults |
| Knowledge | Domain patterns Claude auto-loads (clean-code, api-patterns) | user-invocable: false |
reference/ for overflowreference/details.md)$ARGUMENTS: place it early so user input is visibleEvery SKILL.md must contain all five, or it will lower the toolkit quality score:
## Example sectionMUST, NEVER, CRITICAL, MANDATORY, or DO NOTreference/ if neededThese map directly to the mutation strategies in meta-architect.md:
add_example, add_constraint, add_edge_case, restructure.
Split the "hard rules" criterion into two sections when both apply:
## Rules — prescriptive process constraints (always-true MUST / NEVER): "MUST form a testable hypothesis before changing code", "NEVER force-push main". Required in every skill.## Gotchas — environment-specific traps the agent would miss without being told, taken from Anthropic's best practices. Example from their docs: "The users table uses soft deletes. Queries must include WHERE deleted_at IS NULL or results will include deactivated accounts." Add this section only when real domain traps exist — do not pad with a (none) placeholder.skill-name/
SKILL.md # Main instructions (required, <500 lines)
reference/ # Detailed docs (loaded on-demand)
templates/ # Reusable templates for output
scripts/ # Executable helper scriptsOnly create subdirectories when the skill needs them. Most skills are a single SKILL.md.
---
name: {name}
description: "{Third-person description, min 50 chars, with trigger hint like 'Use when...'}"
argument-hint: "[hint]"
allowed-tools: Read, Grep, Glob
---
# {Title}
$ARGUMENTS
{One-line purpose statement.}
## Usage
\`\`\`
/{name} [arguments]
\`\`\`
## What This Command Does
1. **Step one**
2. **Step two**
3. **Step three**
## Example
\`\`\`
/{name} example-argument
\`\`\`
{Expected observable behavior.}
## Rules
- **MUST** {non-negotiable rule 1}
- **NEVER** {forbidden action}
- **CRITICAL**: {safety constraint}
## Gotchas
- {environment-specific trap the agent would miss — concrete, not general}
- {non-obvious behavior of a tool, API, or data layout}
## When NOT to Use
- For {adjacent use case} -- use `/{other-skill}` instead
- For {another case} -- use `/{another-skill}`
- If {precondition} is not metLeave out ## Gotchas entirely when the skill has no domain-specific traps — it is not mandatory, and a stub with nothing concrete is worse than no section.
Before finalizing, verify:
## Rules section with prescriptive MUST / NEVER / CRITICAL / MANDATORY## Gotchas section when the domain has real environment-specific traps (otherwise omit)## When NOT to Use section naming 2-3 adjacent skills$ARGUMENTS is present for task/hybrid skillsallowed-tools is minimal (principle of least privilege)After creating the skill, test it:
$ARGUMENTS) worksallowed-tools are sufficient but not excessiveAfter creating the skill:
app/skills/{name}/skills-catalog.md if it existsARCHITECTURE.md skill counts if referencedvalidate.sh if availableevaluate-skills.sh if available| Mistake | Fix |
|---|---|
| Description too vague | Add specific terms: "Python", "REST API", "migration" |
| SKILL.md too long | Move details to reference/ subdirectory |
Missing $ARGUMENTS | Add after the H1 heading for task/hybrid skills |
| Over-specifying steps | Give structure, let Claude fill details |
| Wrong classification | Task = side effects, Knowledge = patterns, Hybrid = both |
© softspark, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 3 other files in app/skills/skill-creator of softspark/ai-toolkit.
Open the folder on GitHubat commit d64db2b
Skill Creator 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 |
|---|---|---|---|---|---|---|
| Skill Creator this skillsoftspark/ai-toolkit | 179 | — | ~2.4k | Automated safety check: Notes | Apache-2.0 | |
| Skill CreatorAzure/azqr | 794 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase | 10k | 10 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Darwin Skill Optimizeralchaincyf/darwin-skill | 6.2k | 1 repos | ~4.7k | Automated safety check: Pass | MIT | |
| Claude Code Command Developmentanthropics/claude-plugins-official | 37k | 10 repos | ~4.8k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Plugin Structureanthropics/claude-plugins-official | 37k | 10 repos | ~3.4k | Automated safety check: Pass | Apache-2.0 |
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
diet103/claude-code-infrastructure-showcase
A guide to creating and managing Claude Code skills with auto-activation: skill-rules.json triggers, hooks, enforcement levels, YAML frontmatter and progressive disclosure.
alchaincyf/darwin-skill
Scores SKILL.md files on a nine-dimension rubric, then improves them in a keep-or-revert loop with independent judge agents, test prompts, git history and human checkpoints.
anthropics/claude-plugins-official
Explains how to write Claude Code slash commands: Markdown files with YAML frontmatter, arguments, file references, bash context and interactive prompts.
anthropics/claude-plugins-official
Explains the directory layout, plugin.json manifest and component organization of a Claude Code plugin, including auto-discovery and portable paths.
rohitg00/ai-engineering-from-scratch
Evaluates an Agent Skill bundle before release for structure, trigger quality, artifact improvement, script correctness, safety, installed-tree integrity and host portability.
softspark/ai-toolkit
Prepare or verify a project QA environment with source identity, readiness, browser access, evidence paths and owned cleanup.
softspark/ai-toolkit
Accessibility validator: WCAG 2.1 AA, EN 301 549, EAA. An agent skill from softspark/ai-toolkit.
softspark/ai-toolkit
Analyzes code quality, complexity, patterns across codebase.
softspark/ai-toolkit
Drives a brief, specification, issue or existing PR through implementation, review, tests and QA to a ready PR.
softspark/ai-toolkit
Direct technical voice for docs, README, user-facing text. An agent skill from softspark/ai-toolkit.
softspark/ai-toolkit
Detect/generate/debug CI pipeline config (GitHub Actions, GitLab CI).
Categories
Creates new skills from templates via guided workflow. An agent skill from softspark/ai-toolkit. Skill Creator is an agent skill from softspark/ai-toolkit. Creates new skills from templates via guided workflow.
Skill Creator fits situations like: tasks that involve Skill authoring.
Run `npx skills add softspark/ai-toolkit --skill skill-creator -a claude-code`. Or copy the skill folder (app/skills/skill-creator in softspark/ai-toolkit) into .claude/skills/skill-creator in your project. Claude Code loads it when a task matches its description.
Run `npx skills add softspark/ai-toolkit --skill skill-creator -a codex`. Or copy the skill folder (app/skills/skill-creator in softspark/ai-toolkit) into .agents/skills/skill-creator in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add softspark/ai-toolkit --skill skill-creator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-creator, .gemini/skills/skill-creator, .github/skills/skill-creator and .opencode/skills/skill-creator in your project.
Going by SKILL.md and its folder, Skill Creator needs Python for the scripts in its folder. Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash, Grep, Glob.
SKILL.md names 2 domains. As links in the text: code.claude.com and agentskills.io. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
Skill Creator is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.4k tokens (SKILL.md is roughly 9.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Skill Creator: Skill Creator (Azure/azqr, 794 stars), Claude Code Skill Developer Guide (diet103/claude-code-infrastructure-showcase, 10k stars), Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars) and Claude Code Command Development (anthropics/claude-plugins-official, 37k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
softspark (a GitHub user) maintains it in softspark/ai-toolkit, which has 179 GitHub stars. The repository holds 112 skills in this directory. The repository was last updated on October 7, 2026.
Source: softspark/ai-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.