cli-skills

Original：🇺🇸 English

Translated

CLI best practices for LlamaFarm. Covers Cobra, Bubbletea, Lipgloss patterns for Go CLI development.

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Sourcellama-farm/llamafarm

Added on2026-02-21

NPX Install

npx skill4agent add llama-farm/llamafarm cli-skills

SKILL.md Content

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CLI Skills for LlamaFarm

Framework-specific patterns for the LlamaFarm CLI. These guidelines extend the shared Go skills with Cobra, Bubbletea, and Lipgloss best practices.

Tech Stack

Go 1.24+
Cobra (CLI framework)
Bubbletea (TUI framework)
Lipgloss (terminal styling)
Bubbles (TUI components)

Directory Structure

cli/
  cmd/             # Cobra command implementations
    config/        # Configuration types and loading
    orchestrator/  # Service management and process control
    utils/         # Shared utilities (HTTP, output, logging)
    version/       # Version and upgrade handling
  internal/        # Internal packages (not exported)
    tui/           # Reusable TUI components
    buildinfo/     # Build-time information

Quick Reference

Cobra Commands

Use
```
RunE
```
over
```
Run
```
for error handling
Register flags in
```
init()
```
functions
Use persistent flags for shared options
Validate arguments with
```
Args
```
field

Bubbletea TUI

Implement
```
Init()
```
,
```
Update()
```
,
```
View()
```
interface
Use message types for state changes
Return
```
tea.Cmd
```
for async operations
Keep state immutable in
```
Update()
```

Lipgloss Styling

Define styles as package-level constants
Use
```
lipgloss.NewStyle()
```
for styling
Handle terminal width dynamically
Support color themes via style variables

Shared Go Skills

This skill extends the base Go skills. See:

Link	Description
go-skills/SKILL.md	Overview and quick reference
go-skills/patterns.md	Idiomatic Go patterns
go-skills/concurrency.md	Goroutines, channels, sync
go-skills/error-handling.md	Error wrapping, sentinels
go-skills/testing.md	Table-driven tests, mocks
go-skills/security.md	Input validation, secure coding

CLI-Specific Checklists

File	Description
cobra.md	Cobra command patterns, flags, validation
bubbletea.md	Bubbletea Model/Update/View patterns
performance.md	CLI-specific optimizations

Key Patterns in This Codebase

Command Registration Pattern

var myCmd = &cobra.Command{
    Use:   "mycommand [args]",
    Short: "Brief description",
    Long:  `Extended description with examples.`,
    Args:  cobra.MaximumNArgs(1),
    RunE: func(cmd *cobra.Command, args []string) error {
        // Implementation with error returns
        return nil
    },
}

func init() {
    rootCmd.AddCommand(myCmd)
    myCmd.Flags().StringVar(&flagVar, "flag", "default", "Flag description")
}

TUI Model Pattern

type myModel struct {
    viewport viewport.Model
    textarea textarea.Model
    width    int
    height   int
    err      error
}

func (m myModel) Init() tea.Cmd {
    return tea.Batch(m.textarea.Focus(), doAsyncWork())
}

func (m myModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
    var cmds []tea.Cmd
    switch msg := msg.(type) {
    case tea.WindowSizeMsg:
        m.width = msg.Width
        m.height = msg.Height
    case tea.KeyMsg:
        switch msg.String() {
        case "ctrl+c":
            return m, tea.Quit
        }
    }
    return m, tea.Batch(cmds...)
}

func (m myModel) View() string {
    return lipgloss.JoinVertical(lipgloss.Left,
        m.viewport.View(),
        m.textarea.View(),
    )
}

Output API Pattern

// Use the output API for consistent messaging
utils.OutputInfo("Starting service %s...", serviceName)
utils.OutputSuccess("Service started successfully")
utils.OutputError("Failed to start service: %v", err)
utils.OutputProgress("Downloading model...")
utils.OutputWarning("Service already running")

Service Orchestration Pattern

// Ensure services are running before operations
factory := GetServiceConfigFactory()
config := factory.ServerOnly(serverURL)
orchestrator.EnsureServicesOrExitWithConfig(config, "server")

// Or with multiple services
config := factory.RAGCommand(serverURL)
orchestrator.EnsureServicesOrExitWithConfig(config, "server", "rag", "universal-runtime")

Guidelines

User Experience First: CLI should feel responsive and provide clear feedback
Graceful Degradation: Handle missing services, network errors, and timeouts gracefully
Consistent Output: Use the output API for all user-facing messages
Cross-Platform: Test on macOS, Linux, and Windows
Terminal Compatibility: Test with different terminal emulators and sizes