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Slash commands let you define reusable prompt workflows that can be invoked from the TUI or non-interactive mode.

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Built-in commands

0x0 ships with two built-in commands:
CommandDescription
initInitialize a project with recommended config and structure
reviewRun a code review on the current changes

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Where commands are loaded from

0x0 loads commands from multiple sources (in priority order):
  1. Built-in commands — init and review
  2. Config-defined commands — the command key in config.yaml
  3. Command markdown files — .zeroxzero/command/**/*.md and .zeroxzero/commands/**/*.md
  4. Global command directories — ~/.zeroxzero/command/**/*.md and ~/.zeroxzero/commands/**/*.md
  5. MCP prompts — prompts exposed by configured MCP servers
  6. Skills — discovered skills are available as commands

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Running a command

  • In TUI: type /your-command in the input field
  • In non-interactive mode: 0x0 run --command your-command [message..]
  • From the command palette: press ctrl+p and select the command

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Command markdown file

Command files use YAML frontmatter with a markdown body: 
---
description: Summarize current changes and risks
---

Analyze this repository state and provide:

1. concise change summary
2. notable risks
3. suggested follow-up checks
The filename (without .md) becomes the command name.

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Config-defined commands

Define commands in config.yaml under the command key: 
command:
  summarize:
    description: Summarize current changes and risks
    template: |
      Analyze this repository state and provide:
      1. concise change summary
      2. notable risks
      3. suggested follow-up checks
  test:
    description: Run tests and fix failures
    agent: builder
    model: anthropic/claude-sonnet-4
    template: Run the test suite. Fix any failures.
  plan:
    description: Create an implementation plan
    subtask: true
    template: Create a plan for the following task.

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Command config fields

FieldTypeDescription
templatestringThe prompt template text
descriptionstringDescription shown in the command palette
agentstringAgent to use when running this command
modelstringModel to use (in provider/model format)
subtaskbooleanRun the command as a background subtask

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Tips

  • Keep command names stable so teammates can share workflows.
  • Put project-specific commands in repo .zeroxzero/commands.
  • Keep global commands focused on reusable personal workflows.
  • Use subtask: true for commands that should run in the background without blocking.

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See also