Our review
This skill creates or updates another skill based on the current conversation, following a structured procedure.
Strengths
- Automates skill creation and update without leaving the workflow.
- Maintains format consistency and allows adding specific rules.
- Supports both creation and update modes with automatic detection.
Limitations
- Requires the skill name to be in kebab-case.
- Does not handle skill deletion.
- Section detection for updates can be ambiguous.
Use this skill when you want to formalize a new practice or modify an existing skill based on conversation context.
Do not use for trivial changes that could be done manually, or when the skill to create requires decisions not covered by the procedure.
Security analysis
SafeThe skill only performs file existence checks, directory creation, and file writes using standard tools. No destructive commands, network calls, or exfiltration risks.
No concerns found
Examples
Create a skill called 'code-review' that checks pull requests for common errors and enforces coding standards.Update the 'code-review' skill to also check for missing error handling.Create or update a skill based on the current conversation.
The first word of $ARGUMENTS is the skill name (kebab-case). The rest is an optional note about what to add or change.
Step 1 — Detect mode
Check whether .claude/skills/$0/SKILL.md already exists.
- Exists → update mode: read the current file, then go to Step 3.
- Does not exist → create mode: go to Step 2.
Step 2 — Determine frontmatter (create only)
Decide the correct frontmatter based on what the skill does:
description — one sentence: what the skill does + when Claude should auto-load it. Put the key trigger phrase first (budget is 1,536 chars).
paths — set only if the skill is scoped to specific files. Use glob patterns:
- Design system / theme work →
@soroush.tech/design-system/** - All TypeScript →
**/*.ts,**/*.tsx - Omit for project-wide knowledge
argument-hint — short label shown in autocomplete, e.g. [filename] or [component-name].
disable-model-invocation: true — add only if this is a manual workflow with side effects (deploy, commit, send). Reference knowledge should NOT have this.
user-invocable: false — add only if users should never call it directly (pure background context).
Step 3 — Write content
Rules for skill content:
- Reference skills (conventions, patterns, style guides): state the rule + one ✗/✓ code pair. No prose explaining why — the example shows it.
- Task skills (step-by-step actions): numbered steps, imperative verbs, no explanation.
- Keep SKILL.md under 500 lines.
- Every line is a recurring token cost — cut anything that doesn't change Claude's behavior.
- End with:
If $ARGUMENTS names a file, read it and apply the rules. Otherwise apply to the code being discussed.(for reference skills only).
Update mode: add the new rule or change to the appropriate section. Do not touch unrelated rules. Remove any rule made obsolete by the change.
Step 4 — Write the file
For create: run mkdir -p .claude/skills/$0 then write .claude/skills/$0/SKILL.md.
For update: write the updated .claude/skills/$0/SKILL.md.
Confirm what was created or changed. If a new paths scope was set, mention which files will trigger it.
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