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A skill for reliably creating files using shell commands
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
Use for math calculations.
Use for date/time.
Rules to minimize token usage
Native macOS built-in screen capture. Saves directly to ~/Desktop using exact system timestamp naming, so agent can automatically detect and read the latest screenshot without manual file paths. macOS only.
Maintain a living context document (plan.md) as a self-note to preserve the original agenda, track progress, and prevent context drift during complex tasks
A meta-skill to create new skills in the default skill directory with proper YAML front matter
| name | file-create |
| description | A skill for reliably creating files using shell commands |
Reliably create files via shell commands, avoiding quoting/escaping/redirection pitfalls.
Use this when a tool's
createorwriteprimitive isn't available, or when content has special characters that break redirection.
Method 1: tee (recommended — handles special chars, quotes, newlines)
process:
command: "tee"
args: ["/path/to/file.txt"]
stdin: "file content here"
Method 2: here-doc (alternative for multiline content)
process:
command: "sh"
args: ["-c", "cat > /path/to/file.txt << 'EOF'\ncontent here\nEOF"]
Method 3: printf (for escape sequences / precise formatting)
process:
command: "sh"
args: ["-c", "printf '%s' '$CONTENT' > /path/to/file.txt"]
Create parent dirs first with -p:
process:
command: "mkdir"
args: ["-p", "/parent/dir"]
# 1. Create directory
process:
command: "mkdir"
args: ["-p", "~/.agents/skills/my-skill"]
# 2. Write file
process:
command: "tee"
args: ["~/.agents/skills/my-skill/SKILL.md"]
stdin: "# my-skill\n\n## Usage\n..."
# 3. Verify
process:
command: "ls"
args: ["-la", "~/.agents/skills/my-skill/"]