7.2 KiB
summary, title, read_when
| summary | title | read_when | ||
|---|---|---|---|---|
| Build and test custom workspace skills with SKILL.md | Creating skills |
|
Skills teach the agent how and when to use tools. Each skill is a directory
containing a SKILL.md file with YAML frontmatter and markdown instructions.
For how skills are loaded and prioritized, see Skills.
Create your first skill
Skills live in your workspace. Create a new folder:```bash
mkdir -p ~/.openclaw/workspace/skills/hello-world
```
You can group skills in subfolders when your library grows:
```bash
mkdir -p ~/.openclaw/workspace/skills/personal/hello-world
```
Group folders are only organizational. The skill is still named by
`SKILL.md` frontmatter, so `name: hello-world` is invoked as
`/hello-world`.
Create `SKILL.md` inside that directory. The frontmatter defines metadata,
and the markdown body contains instructions for the agent.
```markdown
---
name: hello-world
description: A simple skill that says hello.
---
# Hello World Skill
When the user asks for a greeting, use the `echo` tool to say
"Hello from your custom skill!".
```
Use hyphen-case with lowercase letters, digits, and hyphens for the skill
`name`. Keep the leaf folder name and frontmatter `name` aligned.
You can define custom tool schemas in the frontmatter or instruct the agent
to use existing system tools (like `exec` or `browser`). Skills can also
ship inside plugins alongside the tools they document.
Verify the skill loaded:
```bash
openclaw skills list
```
OpenClaw watches nested `SKILL.md` files under skills roots. If the watcher
is disabled or you are continuing an existing session, start a new session
so the model receives the refreshed skills list:
```bash
# From chat
/new
# Or restart the gateway
openclaw gateway restart
```
Send a message that should trigger the skill:
```bash
openclaw agent --message "give me a greeting"
```
Or just chat with the agent and ask for a greeting.
Propose before applying
For agent-generated procedures, use a Skill Workshop proposal instead of
writing SKILL.md directly:
openclaw skills workshop propose-create \
--name "hello-world" \
--description "A simple skill that says hello." \
--proposal ./PROPOSAL.md
Use --proposal-dir when the proposal also has support files:
openclaw skills workshop propose-create \
--name "hello-world" \
--description "A simple skill that says hello." \
--proposal-dir ./hello-world-proposal
The draft is stored under
<OPENCLAW_STATE_DIR>/skill-workshop/proposals/<proposal-id>/PROPOSAL.md and
stays inactive until an operator reviews and applies it. The default state
directory is ~/.openclaw. Proposal directories must contain PROPOSAL.md.
Support files can be included under assets/, examples/, references/,
scripts/, or templates/; OpenClaw stores and scans them with the proposal:
openclaw skills workshop inspect <proposal-id>
openclaw skills workshop revise <proposal-id> --proposal ./PROPOSAL.md
openclaw skills workshop apply <proposal-id>
When applied, OpenClaw writes the final SKILL.md into the workspace skills/
root, writes approved support files beside it, and removes proposal-only
frontmatter such as status: proposal, proposal version, and proposal
date.
Skill metadata reference
The YAML frontmatter supports these fields:
| Field | Required | Description |
|---|---|---|
name |
Yes | Unique identifier using lowercase letters, digits, and hyphens |
description |
Yes | One-line description shown to the agent |
metadata.openclaw.os |
No | OS filter (["darwin"], ["linux"], etc.) |
metadata.openclaw.requires.bins |
No | Required binaries on PATH |
metadata.openclaw.requires.config |
No | Required config keys |
Advanced features
Once a basic skill works, these fields help make it reliable and portable:
- Conditional activation — use
requires.bins,requires.env, orrequires.configto load the skill only when required dependencies are available. See Skills reference: gating. - Environment and API-key wiring — use
skills.entries.<name>.envandskills.entries.<name>.apiKeyto inject host-side environment for a skill turn. See Skills reference: config wiring. - Invocation control — set
user-invocable: falseto hide a slash command, ordisable-model-invocation: trueto keep a command-style skill out of the model prompt. See Skills reference: frontmatter. - Direct command dispatch — use
command-dispatch: toolwithcommand-toolwhen a slash command should call a tool directly instead of routing through the model. - Portable paths — use
{baseDir}inSKILL.mdwhen referencing scripts or assets inside the skill directory. - Publishing — use the ClawHub skill when preparing a skill for publication.
It documents the current
clawhub publishcommand shape and required metadata.
Best practices
- Be concise — instruct the model on what to do, not how to be an AI
- Safety first — if your skill uses
exec, ensure prompts don't allow arbitrary command injection from untrusted input - Test locally — use
openclaw agent --message "..."to test before sharing - Use ClawHub — browse and contribute skills at ClawHub
Where skills live
| Location | Precedence | Scope |
|---|---|---|
\<workspace\>/skills/ |
Highest | Per-agent |
\<workspace\>/.agents/skills/ |
High | Per-workspace agent |
~/.agents/skills/ |
Medium | Shared agent profile |
~/.openclaw/skills/ |
Medium | Shared (all agents) |
| Bundled (shipped with OpenClaw) | Low | Global |
skills.load.extraDirs |
Lowest | Custom shared folders |
Each skills root can contain direct skill folders such as
skills/hello-world/SKILL.md or grouped folders such as
skills/personal/hello-world/SKILL.md.
Related
- Skills reference — loading, precedence, and gating rules
- Skills config —
skills.*config schema - ClawHub — public skill registry
- Building Plugins — plugins can ship skills