Skill Creator
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
Create, maintain, or migrate functional skills; supports creating from a requirement brief and migrating an existing legacy skill directory into a functional skill structure.
Install Fskill Creator
$ npx skills add AGI-comming/functional-skill-creator --skill fskill-creator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AGI-comming/functional-skill-creator fskill-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/AGI-comming/functional-skill-creator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/fskill-creator .claude/skills/fskill-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 "fskill-creator" agent skill from https://github.com/AGI-comming/functional-skill-creator/tree/main/skills/fskill-creator into .claude/skills/fskill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fskill-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/AGI-comming/functional-skill-creator/tree/main/skills/fskill-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 AGI-comming/functional-skill-creator --skill fskill-creator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AGI-comming/functional-skill-creator fskill-creator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AGI-comming/functional-skill-creator.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/fskill-creator .agents/skills/fskill-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 "fskill-creator" agent skill from https://github.com/AGI-comming/functional-skill-creator/tree/main/skills/fskill-creator into .agents/skills/fskill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fskill-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 AGI-comming/functional-skill-creator --skill fskill-creator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AGI-comming/functional-skill-creator fskill-creator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AGI-comming/functional-skill-creator.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/fskill-creator .cursor/skills/fskill-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 "fskill-creator" agent skill from https://github.com/AGI-comming/functional-skill-creator/tree/main/skills/fskill-creator into .cursor/skills/fskill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fskill-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/AGI-comming/functional-skill-creator.git --path skills/fskill-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 AGI-comming/functional-skill-creator --skill fskill-creator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AGI-comming/functional-skill-creator fskill-creator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AGI-comming/functional-skill-creator.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/fskill-creator .gemini/skills/fskill-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 "fskill-creator" agent skill from https://github.com/AGI-comming/functional-skill-creator/tree/main/skills/fskill-creator into .gemini/skills/fskill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fskill-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 AGI-comming/functional-skill-creator fskill-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 AGI-comming/functional-skill-creator --skill fskill-creator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/AGI-comming/functional-skill-creator.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/fskill-creator .github/skills/fskill-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 "fskill-creator" agent skill from https://github.com/AGI-comming/functional-skill-creator/tree/main/skills/fskill-creator into .github/skills/fskill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fskill-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 AGI-comming/functional-skill-creator --skill fskill-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 AGI-comming/functional-skill-creator fskill-creator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AGI-comming/functional-skill-creator.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/fskill-creator .opencode/skills/fskill-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 "fskill-creator" agent skill from https://github.com/AGI-comming/functional-skill-creator/tree/main/skills/fskill-creator into .opencode/skills/fskill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fskill-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.
Facts
- Skill name
fskill-creator- GitHub stars
- 257
- Token cost
- ~1.8k tokens
- SKILL.md length
- 699 words
- Files
- 21 (incl. scripts, references)
- Skills in repo
- 3
- Repo updated
- First seen
- Licence
- MIT
At a glance
Create, maintain, or migrate functional skills; supports creating from a requirement brief and migrating an existing legacy skill directory into a functional skill structure.
- Tasks that involve Skill authoring
- SKILL.md covers Goal, Principles, Sub-Skills and References, plus 3 more sections
- Runs JavaScript scripts from its folder
What it does
Fskill Creator is an agent skill from AGI-comming/functional-skill-creator. Create, maintain, or migrate functional skills; supports creating from a requirement brief and migrating an existing legacy skill directory into a functional skill structure.
Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 25 other files, including scripts and reference files (for example `functions/add_runtime_capabilities.md`, `functions/assemble_skill_files.md` and `functions/design_skill_structure.md`).
It sits in Agent Workflows, covering Skill authoring. The repository describes itself as: fskill-creator turns your long-text SKILL into functions, making it modular, testable and trackable for better long-term maintenance and iteration. The licence is MIT.
When your agent uses it
- Tasks that involve Skill authoring
Example prompts
- “/fskill-creator”
Requirements
- Node.js
What it can do on your machine
Read from SKILL.md and the folder at commit 38509bb. 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
Ships 5 files in scripts/ (JavaScript, from the files we listed), which the agent can run.
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
Fskill Creator loads about 1.8k tokens when it runs, and up to ~2.7k if it reads all its reference files. Until then it costs about 47 tokens; SKILL.md has 699 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); the scripts in this folder are not scanned.
SKILL.md
The full file from AGI-comming/functional-skill-creator at commit 38509bb, republished under its MIT licence (© AGI-comming). 699 words, ~1,842 tokens.
Download SKILL.mdSave it as
.claude/skills/fskill-creator/SKILL.md (or your agent's skills folder). This skill also uses 20 other files; get the full folder from GitHub.- name
- fskill-creator
- description
- Create, maintain, or migrate functional skills; supports creating from a requirement brief and migrating an existing legacy skill directory into a functional skill structure.
fskill-creator
Goal
Unify the create and migrate lanes to produce a self-contained, reviewable, testable functional agent skill directory. The main skill handles routing, blueprint normalization, shared artifact generation, runtime capability provisioning, file writing, and validation; sub-skills only handle pre-analysis for their respective input forms.
Use this skill when the user wants to "generate a functional skill", "create a functional skill", "add functions to an existing functional skill", or "migrate an existing legacy skill directory into a functional skill".
Principles
- The main
SKILL.mdonly orchestrates the shared create / migrate / enhance / validate workflow. - Create and migrate are two pre-lanes; they must first converge into a unified
skill_blueprint. - Function-specific behavior lives in
functions/*.md; create / migrate specific pre-behavior lives insub-skills/*/functions/*.md. - Shared vocabulary, policies, and schemas live in
references/*.md. - Deterministic parsing, formatting, validation, and mechanical transforms live in
scripts/. - Report, unit test, viewer, and testcase capabilities are maintained only once in the main skill, and vendored into the target skill by
add_runtime_capabilities. - Preserve user-provided domain constraints; the migrate lane must also preserve legacy behavior evidence.
- When the user has not approved direct modification, generated files should be treated as proposals.
Sub-Skills
| Sub-skill | When | Responsibility | Output |
|---|---|---|---|
sub-skills/create | User provides a new skill brief or wants to enhance an existing functional skill | Normalize requirements, target path, inputs/outputs, constraints, and viewer choices | create_context |
sub-skills/migrate | User provides a legacy skill directory, monolithic skill content, or a migration request | Load the legacy skill package, identify behaviors that must be preserved, propose function boundaries and evidence | migration_context |
Sub-skills do not directly write final target skill files. Their output must go through normalize_skill_blueprint before entering the shared artifact pipeline.
References
| Resource | Load Timing | Purpose |
|---|---|---|
shared_glossary | On demand | Stable terminology and cross-lane field semantics. |
script_rules | Before designing or drafting scripts | Rules for deciding whether deterministic work belongs in scripts/. |
sub-skills/create | Create lane | Form create_context from user brief. |
sub-skills/migrate | Migrate lane | Form migration_context from a legacy skill directory. |
External Inputs
| Field | Source | Description |
|---|---|---|
task_mode | user or derived | create, migrate, enhance, or validate; inferred by resolve_task_mode when absent. |
skill_request | user | Requirement description for creating or enhancing a skill. |
legacy_skill_dir | user or repository | Path to an existing legacy skill directory containing SKILL.md and optional companion files. |
legacy_skill_path | user or repository | Deprecated alias for legacy_skill_dir; may also be a direct path to SKILL.md, which resolves to its parent directory. |
legacy_skill_content | user | Legacy skill markdown provided when the path is inaccessible. |
target_skill_path | user or derived | Directory where the functional skill should live. |
skill_name | user or derived | Optional target skill name. |
existing_skill_files | repository | Optional existing functional skill files. |
migration_constraints | user | File names, tone, platform rules, or behaviors that must be preserved during migration. |
known_testcases | user or repository | Existing examples, traces, or expected behaviors. |
existing_scripts | repository | Helper scripts associated with the legacy skill. |
include_report | user | Whether to generate report log runtime in the target skill; defaults to true. |
include_unittest | user | Whether to generate unittest / testcase runner in the target skill; defaults to true. |
script_runtime | environment | Whether this skill's own Node.js scripts can be run. |
report_mode | user | off, local, or remote; defaults to off. |
Viewers are generated following the capability flags: tools/log_viewer.mjs when include_report=true; tools/tester_viewer.mjs when include_unittest=true.
Show full SKILL.md (182 more words)Show less
Execution Pipeline
| Step | Function | Purpose | Input | Output |
|---|---|---|---|---|
| 1 | resolve_task_mode | Determine whether this request should go through create, migrate, enhance, or validate. | task_mode<br>skill_request<br>legacy_skill_dir<br>legacy_skill_path<br>legacy_skill_content<br>existing_skill_files | task_context |
| 2A | sub-skills/create::collect_create_brief | Create/enhance lane: normalize user brief. | skill_request<br>target_skill_path<br>skill_name | create_context |
| 2B | sub-skills/migrate::load_legacy_skill + map_existing_behavior + propose_function_split + extract_shared_references | Migrate lane: read the legacy skill package, extract behaviors and migration evidence. | legacy_skill_dir<br>legacy_skill_path<br>legacy_skill_content<br>migration_constraints<br>include_report<br>include_unittest<br>script_runtime | migration_context |
| 3 | normalize_skill_blueprint | Converge create / migrate / enhance inputs into a unified blueprint. | task_context<br>create_context<br>migration_context<br>target_skill_path<br>include_report<br>include_unittest | skill_blueprint |
| 4 | design_skill_structure | Design function pipeline, references, scripts, testcases, and file layout based on blueprint. | skill_blueprint<br>existing_skill_files<br>script_rules | skill_structure<br>script_plan<br>tool_plan |
| 5 | draft_skill_artifacts | Draft SKILL.md, function contracts, references, script specs, and testcase suggestions. | skill_blueprint<br>skill_structure<br>script_plan | skill_artifacts |
| 6 | add_runtime_capabilities | Provision report log, runtime wrapper, unit testcase runner, viewer, and smoke tests according to include flags. | skill_blueprint.include_report<br>skill_blueprint.include_unittest<br>skill_artifacts | runtime_artifacts<br>skill_artifacts |
| 7 | assemble_skill_files | Generate or update target skill directory files. | target_skill_path<br>skill_structure<br>skill_artifacts<br>runtime_artifacts<br>script_runtime | file_plan<br>created_files<br>updated_files |
| 8 | validate_skill | Validate functional-skill structure, runtime capabilities, testcases, and migration behavior preservation. | target_skill_path<br>file_plan<br>skill_blueprint<br>report_mode | validation_result |
Output Scope
This skill may read legacy skills and create or modify functional skill files under target_skill_path. Do not delete the original legacy skill unless the user explicitly requests deletion; do not modify unrelated repository files unless the user explicitly requests project-level integration.
© AGI-comming, 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 20 other files (scripts, references) in skills/fskill-creator of AGI-comming/functional-skill-creator.
- SKILL.md
- functions/add_runtime_capabilities.md
- functions/assemble_skill_files.md
- functions/design_skill_structure.md
- functions/draft_skill_artifacts.md
- functions/normalize_skill_blueprint.md
- functions/resolve_task_mode.md
- functions/validate_skill.md
- logs/runs/.gitkeep
- references/script-rules.md
- references/shared-glossary.md
- scripts/.gitkeep
- scripts/init_skill.mjs
- scripts/init_skill.test.mjs
- scripts/lint_skill.mjs
- scripts/test_cases.mjs
- … and 5 more
Open the folder on GitHubat commit 38509bb
Compare with similar skills
Fskill 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 |
|---|---|---|---|---|---|---|
| Fskill Creator this skillAGI-comming/functional-skill-creator | 257 | — | ~1.8k | Automated safety check: Pass | MIT | |
| Skill CreatorAzure/azqr | 795 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase | 10k | 11 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 | 38k | 10 repos | ~4.8k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Plugin Structureanthropics/claude-plugins-official | 38k | 10 repos | ~3.4k | Automated safety check: Pass | Apache-2.0 |
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More from AGI-comming/functional-skill-creator
Fskill Creator Migrate
AGI-comming/functional-skill-creator
Migrate lane for fskill-creator; analyzes a legacy skill directory into behavior map, function split proposal, and source evidence.
Fskill Creator Create
AGI-comming/functional-skill-creator
Create lane for fskill-creator; normalizes user briefs into createcontext for the main skill to generate functional skills.
Related
Categories
Questions about Fskill Creator
What does Fskill Creator do?
Create, maintain, or migrate functional skills; supports creating from a requirement brief and migrating an existing legacy skill directory into a functional skill structure. Fskill Creator is an agent skill from AGI-comming/functional-skill-creator. Create, maintain, or migrate functional skills; supports creating from a requirement brief and migrating an existing legacy skill directory into a functional skill structure.
When should I use Fskill Creator?
Fskill Creator fits situations like: tasks that involve Skill authoring.
How do I install Fskill Creator in Claude Code?
Run `npx skills add AGI-comming/functional-skill-creator --skill fskill-creator -a claude-code`. Or copy the skill folder (skills/fskill-creator in AGI-comming/functional-skill-creator) into .claude/skills/fskill-creator in your project. Claude Code loads it when a task matches its description.
How do I install Fskill Creator in Codex?
Run `npx skills add AGI-comming/functional-skill-creator --skill fskill-creator -a codex`. Or copy the skill folder (skills/fskill-creator in AGI-comming/functional-skill-creator) into .agents/skills/fskill-creator in your project. Codex loads it when a task matches its description.
Can I use Fskill Creator 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 AGI-comming/functional-skill-creator --skill fskill-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/fskill-creator, .gemini/skills/fskill-creator, .github/skills/fskill-creator and .opencode/skills/fskill-creator in your project.
What does Fskill Creator need to run?
Going by SKILL.md and its folder, Fskill Creator needs JavaScript for the scripts in its folder. Our summary lists: Node.js.
Does Fskill Creator 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 Fskill Creator 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Fskill Creator use?
Fskill Creator 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 Fskill Creator use?
About 1.8k tokens (SKILL.md is roughly 7.4k 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 812 tokens, read only when the agent opens those files.
What are the alternatives to Fskill Creator?
Skills that share tags, products or a category with Fskill Creator: Skill Creator (Azure/azqr, 795 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, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Fskill Creator?
AGI-comming (a GitHub organization) maintains it in AGI-comming/functional-skill-creator, which has 257 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on June 29, 2026.
Source: AGI-comming/functional-skill-creator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.