Console Rendering Agent Skill

by github

Use Go struct tags to render styled terminal output in gh-aw.

736 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

4864

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/github/gh-aw --skill console-rendering

The instruction itself

13 sections, as written by the author

Console Rendering System Usage

Use this guide for the struct tag-based console rendering system.

Struct Tag Support

Use the console struct tag to control rendering behavior:

header:"Name" - Sets the display name for fields (used in both structs and tables)
title:"Section Title" - Sets the title for nested structs, slices, or maps
format:"type" - Sets the formatting type for the field value
format:number - Formats integers as human-readable numbers (e.g., "1k", "1.2M")
format:cost - Formats floats as currency with $ prefix (e.g., "$1.234")
omitempty - Skips the field if it has a zero value
"-" - Always skips the field

Example Usage

type Overview struct {
    RunID    int64  `console:"header:Run ID"`
    Workflow string `console:"header:Workflow"`
    Status   string `console:"header:Status"`
    Duration string `console:"header:Duration,omitempty"`
}

data := Overview{
    RunID:    12345,
    Workflow: "test-workflow",
    Status:   "completed",
    Duration: "5m30s",
}

// Simple rendering
fmt.Print(console.RenderStruct(data))

// Output:
//   Run ID  : 12345
//   Workflow: test-workflow
//   Status  : completed
//   Duration: 5m30s

Format Tag Examples

Number Formatting

type Metrics struct {
    TokenUsage int `console:"header:Token Usage,format:number"`
    Errors     int `console:"header:Errors"`
}

data := Metrics{
    TokenUsage: 250000,
    Errors:     5,
}

// Renders as:
//   Token Usage: 250k
//   Errors     : 5

Cost Formatting

type Billing struct {
    Cost float64 `console:"header:Estimated Cost,format:cost"`
}

data := Billing{
    Cost: 1.234,
}

// Renders as:
//   Estimated Cost: $1.234

Rendering Behavior

Structs

Structs are rendered as key-value pairs with proper alignment.

Slices

Slices of structs are automatically rendered as tables:

type Job struct {
    Name       string `console:"header:Name"`
    Status     string `console:"header:Status"`
    Conclusion string `console:"header:Conclusion,omitempty"`
}

jobs := []Job{
    {Name: "build", Status: "completed", Conclusion: "success"},
    {Name: "test", Status: "in_progress", Conclusion: ""},
}

fmt.Print(console.RenderStruct(jobs))

Renders as:

Name  | Status      | Conclusion
----- | ----------- | ----------
build | completed   | success
test  | in_progress | -

Maps

Maps are rendered as markdown-style headers with key-value pairs.

Special Type Handling

time.Time

time.Time fields are automatically formatted as "2006-01-02 15:04:05". Zero time values are considered empty when used with omitempty.

Unexported Fields

The rendering system safely handles unexported struct fields by checking CanInterface() before attempting to access field values.

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How to use it

Copy the folder

Take github/console-rendering from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.