This skill should be used when the user asks to "create an OpenClaw skill", "make a claw skill", "build a skill for OpenClaw", "write a SKILL.md for openclaw", "add a skill to openclaw", "generate openclaw skill frontmatter", "create a clawhub skill", "port a skill to OpenClaw", "convert a Claude Code skill to claw", "migrate my skill to openclaw", or wants to author a new skill or port an existing Claude Code skill for the pi-coding-agent / OpenClaw ecosystem.
Generate well-structured OpenClaw skills or slash commands. Both are SKILL.md files with YAML frontmatter — they share the same structure but differ in how they're triggered and described. OpenClaw uses the AgentSkills spec (pi-coding-agent) with its own frontmatter fields, tool names, and path conventions distinct from Claude Code.
Phase 0: Fetch Current Documentation
Before generating, retrieve the latest OpenClaw skill documentation:
bash
clawdocs get "tools/skills" --no-header -q
Capture any frontmatter fields or options not already listed in
{baseDir}/references/frontmatter-options.md
. If
clawdocs
is unavailable, proceed with current references — they are sufficient. If new fields appear, use them and note the update.
Phase 1: Understand Requirements
Parse
$ARGUMENTS
for type hint. Users are often unclear on OpenClaw-specific conventions. Interview to gather:
Primary objective — What should this skill do?
Trigger scenarios — When should it activate? What exact phrases would a user say?
Inputs/outputs — What does it receive and produce?
Complexity — Simple, standard, or complex workflow?
Gating needs — Does it require specific binaries, env vars, or config keys? (drives
metadata.openclaw.requires.*
)
Execution needs — Sub-agent delegation via
sessions_spawn
? Command dispatch (bypass model)?
Proceed to Phase 2 when at minimum Objective and Trigger Scenarios are established.
Port Mode
When the user provides an existing Claude Code skill to port (file path or pasted content), skip the interview and apply this translation sequence:
Read the source skill and all its supporting files (scripts, references, examples)
Frontmatter — Remove invalid fields (
model
,
context
,
agent
,
allowed-tools
,
hooks
,
license
). Add
metadata
with
requires
if scripts need specific binaries. See
{baseDir}/references/frontmatter-options.md
for valid fields.
Tool names — Apply the translation table from
{baseDir}/references/claw-patterns.md
:
Bash
→
exec
,
Read
→
read
,
Write
→
write
,
Edit
→
edit
,
Glob
/
Grep
→
exec
+
find
/
rg
,
WebSearch
→
web_search
,
WebFetch
→
web_fetch
,
Task
→
sessions_spawn
,
AskUserQuestion
→conversational asking
Paths — Replace
$CLAUDE_PLUGIN_ROOT
with
{baseDir}
. Remove
@file
injection and bang-backtick references.
Scripts/references — Copy as-is if they are platform-neutral Python with no Claude Code SDK dependencies. Update any internal tool name references.
Proceed directly to Phase 2 Step 7 (Validate) with translated content, then Phase 3 (Deliver).
Phase 2: Generate
Apply throughout generation: use imperative voice and terse phrasing because every token in a generated skill body costs budget on every invocation. Prefer instruction over example — state the rule with its reasoning so it generalizes to every input.
Initialize directory first (when creating a new skill directory, not editing an existing file):
Exit 0 = directory scaffolded, proceed to Step 1. Exit 1 = naming collision; ask user whether to overwrite or rename.
Step 1 — Choose type
Skills: Trigger-rich, third-person description ("This skill should be used when..."); auto-triggered by routing
Commands: Concise, verb-first description, under 60 chars; user-invoked via
/
menu
Dispatch commands:
command-dispatch: tool
with
command-tool
— bypasses model entirely, routes directly to a named tool (rare; for pure pass-through cases)
Step 2 — Write frontmatter
Read
{baseDir}/references/frontmatter-options.md
for the full OpenClaw field catalog, description patterns, and the
metadata
single-line JSON constraint.
Key constraint:
metadata
must be a single-line JSON object on one line. Multi-line YAML mappings under
metadata
are not valid in OpenClaw.
Description density rules: Keep descriptions under ~400 characters / ~100 tokens (600 chars / 150 tokens absolute max) — they load every session. Per the OpenClaw cost formula, each skill costs
195 + 97 + field lengths
characters in the system prompt; a 10-skill install with verbose descriptions burns significant context on routing metadata alone. Derive trigger phrases from the user's actual words in Phase 1, not paraphrases. See the token budget and trigger derivation principles in
{baseDir}/references/frontmatter-options.md
.
Intensional over extensional — state the rule with its reasoning rather than listing examples that imply the rule. An intensional rule generalizes to every input the skill will encounter; an extensional list only covers the shapes shown.
Step 3 — Validate description discoverability
Before writing the body, verify the description will route correctly. Mentally generate:
3 should-trigger prompts — realistic user messages that should activate this skill. Include at least one naive phrasing from a user who has never heard of the skill.
3 should-NOT-trigger prompts — messages in adjacent domains that are close but should not activate. These test whether the description is too broad.
Evaluate: does the description cover all should-trigger prompts? Would it plausibly reject the should-NOT-trigger prompts? If coverage is weak, revise the description — add missing trigger phrases, tighten language to exclude adjacent domains, or add a negative trigger ("Not for X").
This step catches routing misses before the rest of the skill is built. Proceed when description coverage is adequate.
Step 4 — Write body
Construction rules:
State objective explicitly in first sentence
Use imperative voice ("Analyze", "Generate", "Identify") — no first-person ("I will", "I am")
Context only when necessary for understanding
XML tags only for complex structured data
No "When to Use This Skill" section — body loads only after triggering; routing guidance there is never read by the routing decision
Avoid headers deeper than H3 — deep nesting signals content that belongs in
references/
, not
SKILL.md
{baseDir}
is the path variable for skill-relative file references (substituted before model sees the skill body)
Both skills and commands follow the same body pattern:
markdown
# NameBrief overview (1-2 sentences).
## Process1. Step one (imperative voice)
2. Step two
3. Step three
Dynamic Content:
Syntax
Purpose
$ARGUMENTS
All arguments as string
$1
,
$2
,
$3
Positional arguments
{baseDir}
Absolute path to skill directory (substituted at load time)
Note:
@file
injection and bang-backtick command expansion are Claude Code features specific to Claude Code's skill loader implementation — the pi-coding-agent skill loader only supports
{baseDir}
path substitution and does not implement these extensions. Do not use them in generated OpenClaw skills.
Step 5 — Script opportunity scan
Read
{baseDir}/references/script-patterns.md
and apply the five signal patterns to every workflow step in the skill being generated:
Signal
Question
If yes →
Repeated Generation
Does any step produce the same structure with different params across invocations?
Parameterized script in
scripts/
Unclear Tool Choice
Does any step combine multiple operations in a fragile sequence naturally expressible as one function?
Script the procedure
Rigid Contract
Can you write
--help
text for this step right now without ambiguity?
CLI candidate
Dual-Use Potential
Would a user want to run this step from the terminal, outside the skill workflow?
Design as proper CLI from the start
Consistency Critical
Must this step produce bit-for-bit identical output for identical inputs?
Script — never LLM generation
For each identified script candidate:
Choose the archetype from
{baseDir}/references/script-patterns.md
(init/validate/transform/package/query)
Scaffold the script in
scripts/
using the Python template from
{baseDir}/references/script-patterns.md
Wire it into SKILL.md with: trigger condition, exact invocation using
exec
tool, output interpretation
Wiring rule: A script reference must state when to invoke (trigger condition), how to invoke (exact command with flags), and what to do with the result (exit code handling, which output fields matter).
Scripts are invoked via the
exec
tool (not
Bash
). Reference paths using
{baseDir}/scripts/script.py
.
Step 6 — Check delegation
Read
{baseDir}/references/claw-patterns.md
for delegation patterns,
sessions_spawn
usage, cross-skill reference conventions, and tool group translations (Claude Code → OpenClaw tool name mapping).
Scan for existing resources before finalizing:
Review available OpenClaw skills (check ~/.openclaw/skills/ and workspace/skills/)
For each workflow step, ask: "Do we already have this?"
Common delegation patterns:
To invoke another OpenClaw skill: tell the model to read
{baseDir}/../<other-skill>/SKILL.md
via the
read
tool, or instruct the user to type
/<other-skill-name>
For background delegation: use
sessions_spawn
(non-blocking; result announced back to chat)
Documentation lookups:
exec: clawdocs get "<slug>" --no-header -q
There is no
Skill
tool in OpenClaw — skills are invoked by the routing model, not programmatically from within another skill.
Step 7 — Validate
When generating a new skill directory (not editing an existing single file):