Command Creator

Purpose

Helps users author .toml command definitions for the Gemini CLI, enabling reusable prompts, context-aware arguments ({{args}}), and dynamic shell execution (!{...}).

When to use this skill

• •User wants to "save this prompt" or "make a command for X".
• •User wants to create a shortcut for a repetitive task.
• •User wants to share a specific workflow with their team (via project-specific commands).

Workflow

1. Requirements Gathering

Clarify the following if not provided:

• •Scope: Global (~/.gemini/commands) or Project-specific (<project-root>/.gemini/commands)? Default to Project-specific if inside a project.
• •Name: What should the command be called? (e.g., /fix, /git:commit).
• •Goal: What should the command do?
• •Arguments: Does it need user input? (Implies {{args}} usage).

2. Command Design

Construct the TOML content based on COMMANDS_DOC.

Key Considerations:

• •Naming: Map command names to file paths (e.g., /git:commit -> .../commands/git/commit.toml).
• •Arguments:
  • •Use {{args}} for raw injection in the prompt.
  • •Use !{command {{args}}} for shell commands (arguments are auto-escaped).
• •Dynamic Content:
  • •Use !{...} for shell output injection (e.g., git diff).
  • •Use @{...} for file content injection.
• •Description: Always include a description field for /help visibility.

3. Safety & Validation

• •Shell Injection: When using !{...}, ensure the command is safe. Warn the user that !{...} blocks trigger a confirmation dialog.
• •Escape: Verify {{args}} is used correctly inside !{...} to prevent injection vulnerabilities (the CLI handles escaping, but the structure must be valid).

4. Implementation

1. •Create the directory structure if it doesn't exist.
2. •Write the .toml file.

Examples

Simple Prompt

User: "Make a command /explain that explains the code in the file I give it"

description = "Explains the code provided as an argument."
prompt = """
Please explain the following code:

@{ {{args}} }
"""

Git Workflow

User: "Create a command to summarize my changes"

description = "Summarizes staged git changes."
prompt = """
Summarize these changes:
!{git diff --staged}
"""

References

• •Custom Commands Documentation - Full syntax and behavior details.