Agent skill

Skill Creator

by manor-os in manor-os/manor-ai

Create, update, review, and evaluate reusable Manor Skills. An agent skill from manor-os/manor-ai.

Custom licenceAuto-check passedAgent Workflows

Install Skill Creator

skills CLI
$ npx skills add manor-os/manor-ai --skill skill-creator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install manor-os/manor-ai skill-creator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/manor-os/manor-ai.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/ai/skills/skill-creator .claude/skills/skill-creator && rm -rf skills-src

Use ~/.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/

Facts

Skill name
skill-creator
GitHub stars
162
Token cost
~1.6k tokens
SKILL.md length
758 words
Files
5 (incl. references)
Skills in repo
21
Repo updated
First seen
Licence
Custom licence

At a glance

Create, update, review, and evaluate reusable Manor Skills. An agent skill from manor-os/manor-ai.

  • Works in 9 steps: Capture intent from context. Extract the… → Resolve material ambiguity. If missing… → Read the creation contract. Before… → …
  • The user wants to turn a workflow into a Skill
  • SKILL.md covers Objective, Choose the operating mode, Required workflow and Creation brief, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Skill Creator is an agent skill from manor-os/manor-ai. Create, update, review, and evaluate reusable Manor Skills. Use when the user wants to turn a workflow into a Skill, build a new Skill, improve an existing Skill, test whether a Skill works, refine its triggering behavior, or organize instructions, scripts, and references for progressive disclosure.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `agents/openai.yaml`, `config.json` and `references/evaluation-playbook.md`).

It sits in Agent Workflows, covering Skill authoring. The repository describes itself as: Source-available, self-hosted AI agent workspace for small businesses and lean teams — with BYOK, workflows, tools, and human approvals.

When your agent uses it

  • The user wants to turn a workflow into a Skill
  • Build a new Skill
  • Improve an existing Skill
  • Test whether a Skill works

Example prompts

  • “/skill-creator”

Workflow steps

9 steps, taken from the first numbered list in SKILL.md.

  1. Capture intent from context. Extract the desired outcome, likely trigger situations, inputs, tools or data sources, output format…
  2. Resolve material ambiguity. If missing information would substantially change the Skill, call draft_skill and relay only its most…
  3. Read the creation contract. Before creating or deeply reviewing a Skill, read references/generation-contract.md. Use it to prepare a…
  4. Plan progressive disclosure. Keep the core workflow in the main instructions. Put detailed domain material, schemas, policies, or long…
  5. Create or update through Manor tools.
  6. Inspect the saved result. Call get_skill_details after creation or update. Check discovery description, workflow clarity, tool…
  7. Evaluate when useful. For deterministic workflows or when the user asks for testing, read references/evaluation-playbook.md. Invoke the…
  8. Iterate on evidence. Use update_skill only when inspection, execution evidence, or user feedback identifies a concrete improvement. Avoid…
  9. Report the result. State what was created or changed, its slug or ID, its expected triggers, resources, tools, validation performed, and…

What it can do on your machine

Read from SKILL.md and the folder at commit 140c09a. 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 (its code samples are markdown).

    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

Skill Creator loads about 1.6k tokens when it runs, and up to ~3.8k if it reads all its reference files. Until then it costs about 79 tokens; SKILL.md has 758 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~79
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.8k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 758 words (~1,605 tokens).

“Turn a user's repeatable workflow into a focused Manor Skill that activates for the right requests, follows a reliable process, uses only appropriate tools, and produces a clearly defined result.”

— opening of SKILL.md by manor-os, Custom licence
name
skill-creator

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (references) in packages/core/ai/skills/skill-creator of manor-os/manor-ai.

  • SKILL.md
  • agents/openai.yaml
  • config.json
  • references/evaluation-playbook.md
  • references/generation-contract.md

Open the folder on GitHubat commit 140c09a

Compare with similar skills

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 Creator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Skill Creator this skillmanor-os/manor-ai162—~1.6kAutomated safety check: PassCustom licence
Skill CreatorAzure/azqr79589 repos~8.2kAutomated safety check: PassApache-2.0
Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase10k11 repos~3.5kAutomated safety check: PassMIT
Darwin Skill Optimizeralchaincyf/darwin-skill6.2k1 repos~4.7kAutomated safety check: PassMIT
Claude Code Command Developmentanthropics/claude-plugins-official38k10 repos~4.8kAutomated safety check: PassApache-2.0
Claude Code Plugin Structureanthropics/claude-plugins-official38k10 repos~3.4kAutomated safety check: PassApache-2.0

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Categories

Questions about Skill Creator

What does Skill Creator do?

Create, update, review, and evaluate reusable Manor Skills. An agent skill from manor-os/manor-ai. Skill Creator is an agent skill from manor-os/manor-ai. Create, update, review, and evaluate reusable Manor Skills.

When should I use Skill Creator?

Skill Creator fits situations like: the user wants to turn a workflow into a Skill; build a new Skill; improve an existing Skill; test whether a Skill works.

How do I install Skill Creator in Claude Code?

Run `npx skills add manor-os/manor-ai --skill skill-creator -a claude-code`. Or copy the skill folder (packages/core/ai/skills/skill-creator in manor-os/manor-ai) into .claude/skills/skill-creator in your project. Claude Code loads it when a task matches its description.

How do I install Skill Creator in Codex?

Run `npx skills add manor-os/manor-ai --skill skill-creator -a codex`. Or copy the skill folder (packages/core/ai/skills/skill-creator in manor-os/manor-ai) into .agents/skills/skill-creator in your project. Codex loads it when a task matches its description.

Can I use Skill 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 manor-os/manor-ai --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.

What does Skill Creator need to run?

SKILL.md names no scripts, command-line tools or credentials: Skill Creator is instructions for the agent only.

Does Skill 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 Skill 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. Review the folder before installing.

What licence does Skill Creator use?

Skill Creator has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Skill Creator use?

About 1.6k tokens (SKILL.md is roughly 6.4k 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 2.2k tokens, read only when the agent opens those files.

What are the alternatives to Skill Creator?

Skills that share tags, products or a category with Skill 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 Skill Creator?

manor-os (a GitHub organization) maintains it in manor-os/manor-ai, which has 162 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on September 7, 2026.

Source: manor-os/manor-ai on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.