# Tui Input

> Generate pixel-precise ASCII TUI for Input u-input with strict output blocks TUI_RENDER COMPONENT_SPEC PENCIL_SPEC PENCIL_BATCH_DESIGN suitable for Pencil MCP drawing workflows.

- Skill: `full-stack-skills/tui-input` (Agent Skill)
- Install (CLI): `npx skillmds@latest add full-stack-skills/tui-input`
- Raw SKILL.md: https://api.skillmd.com/api/skills/full-stack-skills/tui-input/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: full-stack-skills (https://skillmd.com/u/full-stack-skills)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/full-stack-skills/tui-input

---



## Purpose

- Produce an ASCII Text UI (TUI) representation of **Input**.
- Always output layout attributes (top/left/width/height, spacing, colors, typography, zIndex).
- Always output Pencil MCP–ready specs and a `batch_design` plan (≤25 operations per call).

## Source Documentation

This skill intentionally does not embed external documentation links.
If you need a canonical reference, use your team's component documentation or design system source.
## Input Model (Recommended)

```json
{
  "widthCols": 70,
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "props": {},
  "modelValue": null,
  "state": { "focused": false, "disabled": false, "loading": false, "error": null },
  "style": {
    "fillColor": "#ffffff",
    "textColor": "#111111",
    "strokeColor": "#e5e7eb",
    "strokeThickness": 1,
    "cornerRadius": 12
  },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 400, "lineHeight": 20 },
  "layout": { "paddingPx": 16, "gapPx": 8 },
  "hotkeys": []
}
```

## Output Contract (Mandatory)

### OUTPUT: TUI_RENDER

```text
...monospace-only text...
```

### OUTPUT: COMPONENT_SPEC

```json
{
  "id": "tui-input_1",
  "name": "Input",
  "type": "tui-input",
  "bbox": { "topPx": 0, "leftPx": 0, "widthPx": 0, "heightPx": 0 },
  "zIndex": 1,
  "layout": { "paddingPx": 16, "gapPx": 8, "align": "left", "valign": "top" },
  "style": {
    "fillColor": "#ffffff",
    "textColor": "#111111",
    "strokeColor": "#e5e7eb",
    "strokeThickness": 1,
    "cornerRadius": 12,
    "opacity": 1
  },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 400, "lineHeight": 20 },
  "overflow": { "mode": "truncate", "ellipsis": "…", "maxLines": 1 },
  "state": { "focused": false, "disabled": false, "loading": false, "error": null },
  "hotkeys": []
}
```

### OUTPUT: PENCIL_SPEC

```json
{
  "canvas": { "widthPx": 390, "heightPx": 844, "backgroundColor": "#ffffff" },
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "nodes": [],
  "components": []
}
```

### OUTPUT: PENCIL_BATCH_DESIGN

```text
CALL 1:
root=G()
screen=I(root,{type:"frame",name:"Screen"})
U(screen,{width:390,height:844,x:0,y:0})

CALL 2:
cmpBg=I(screen,{type:"rect",name:"Input/Background"})
U(cmpBg,{x:24,y:24,width:342,height:96,fillColor:"#ffffff",strokeColor:"#e5e7eb",strokeThickness:1,cornerRadius:12})
cmpText=I(screen,{type:"text",name:"Input/Text",content:"Input"})
U(cmpText,{x:40,y:56,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:600})
```

## Rendering Rules (Component-Level)

Follow the shared rules from `tui-front-ui`:
- No TAB characters.
- Do not exceed `widthCols`.
- Provide a header row, body area, and minimal hotkeys if interactive.
- `disabled=true` must suppress interaction hints.
- `loading=true` must show a stable placeholder.
- `error!=null` must be printed in a single line footer (truncated to width).

## Component Mapping (Actionable)

Canonical `props` for a text input:
- `label?: string`
- `placeholder?: string`
- `value: string` (or use `modelValue`)
- `required?: boolean`
- `maxLength?: number`
- `prefix?: string`, `suffix?: string` (render as inline tokens)
- `clearable?: boolean` (render `[x]` when focused and non-empty)
- `keyboard?: "text" | "number" | "password"` (affects masking)

State rules:
- Focus: show caret `|` inside the field at the end position (or selection if provided).
- Password: render bullets `•` with same length as value.
- Disabled: grey text token + no caret + no hotkeys.

Interaction hints:
- `<tab>` next field, `<enter>` commit, `<esc>` back.

## Examples (Must include all output blocks)

### Example 1 — Minimal / default

### OUTPUT: TUI_RENDER

```text
┌──────────────────────────────────────────────────────────────┐
│ [Input]                                                    │
├──────────────────────────────────────────────────────────────┤
│ (default state)                                              │
└──────────────────────────────────────────────────────────────┘
```

### OUTPUT: COMPONENT_SPEC

```json
{
  "id": "tui-input_ex1",
  "name": "Input",
  "type": "tui-input",
  "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 96 },
  "zIndex": 1,
  "layout": { "paddingPx": 16, "gapPx": 8, "align": "left", "valign": "top" },
  "style": { "fillColor": "#ffffff", "textColor": "#111111", "strokeColor": "#e5e7eb", "strokeThickness": 1, "cornerRadius": 12, "opacity": 1 },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 400, "lineHeight": 20 },
  "overflow": { "mode": "truncate", "ellipsis": "…", "maxLines": 1 },
  "state": { "focused": false, "disabled": false, "loading": false, "error": null },
  "hotkeys": []
}
```

### OUTPUT: PENCIL_SPEC

```json
{
  "canvas": { "widthPx": 390, "heightPx": 844, "backgroundColor": "#ffffff" },
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "nodes": [],
  "components": [
    { "id": "tui-input_ex1", "name": "Input", "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 96 }, "zIndex": 1 }
  ]
}
```

### OUTPUT: PENCIL_BATCH_DESIGN

```text
CALL 1:
root=G()
screen=I(root,{type:"frame",name:"Screen"})
U(screen,{width:390,height:844,x:0,y:0})

CALL 2:
cmpBg=I(screen,{type:"rect",name:"Input/Background"})
U(cmpBg,{x:24,y:24,width:342,height:96,fillColor:"#ffffff",strokeColor:"#e5e7eb",strokeThickness:1,cornerRadius:12})
cmpText=I(screen,{type:"text",name:"Input/Text",content:"Input"})
U(cmpText,{x:40,y:56,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:600})
```

### Example 2 — Styled / customized

### OUTPUT: TUI_RENDER

```text
┌──────────────────────────────────────────────────────────────┐
│ [Input]                                                    │
├──────────────────────────────────────────────────────────────┤
│ (custom style: strong border, increased padding)             │
└──────────────────────────────────────────────────────────────┘
```

### OUTPUT: COMPONENT_SPEC

```json
{
  "id": "tui-input_ex2",
  "name": "Input",
  "type": "tui-input",
  "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 104 },
  "zIndex": 1,
  "layout": { "paddingPx": 20, "gapPx": 10, "align": "left", "valign": "top" },
  "style": { "fillColor": "#ffffff", "textColor": "#111111", "strokeColor": "#111111", "strokeThickness": 2, "cornerRadius": 12, "opacity": 1 },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 600, "lineHeight": 20 },
  "overflow": { "mode": "truncate", "ellipsis": "…", "maxLines": 1 },
  "state": { "focused": false, "disabled": false, "loading": false, "error": null },
  "hotkeys": []
}
```

### OUTPUT: PENCIL_SPEC

```json
{
  "canvas": { "widthPx": 390, "heightPx": 844, "backgroundColor": "#ffffff" },
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "nodes": [],
  "components": [
    { "id": "tui-input_ex2", "name": "Input", "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 104 }, "zIndex": 1 }
  ]
}
```

### OUTPUT: PENCIL_BATCH_DESIGN

```text
CALL 1:
root=G()
screen=I(root,{type:"frame",name:"Screen"})
U(screen,{width:390,height:844,x:0,y:0})

CALL 2:
cmpBg=I(screen,{type:"rect",name:"Input/Background"})
U(cmpBg,{x:24,y:24,width:342,height:104,fillColor:"#ffffff",strokeColor:"#111111",strokeThickness:2,cornerRadius:12})
cmpText=I(screen,{type:"text",name:"Input/Text",content:"Input"})
U(cmpText,{x:40,y:60,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:600})
```

### Example 3 — Disabled / error / edge-case

### OUTPUT: TUI_RENDER

```text
┌──────────────────────────────────────────────────────────────┐
│ [Input] Disabled                                           │
├──────────────────────────────────────────────────────────────┤
│ Error: Something went wrong…                                 │
└──────────────────────────────────────────────────────────────┘
```

### OUTPUT: COMPONENT_SPEC

```json
{
  "id": "tui-input_ex3",
  "name": "Input",
  "type": "tui-input",
  "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 112 },
  "zIndex": 1,
  "layout": { "paddingPx": 16, "gapPx": 8, "align": "left", "valign": "top" },
  "style": { "fillColor": "#ffffff", "textColor": "#6b7280", "strokeColor": "#e5e7eb", "strokeThickness": 1, "cornerRadius": 12, "opacity": 1 },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 400, "lineHeight": 20 },
  "overflow": { "mode": "truncate", "ellipsis": "…", "maxLines": 1 },
  "state": { "focused": false, "disabled": true, "loading": false, "error": "Something went wrong" },
  "hotkeys": []
}
```

### OUTPUT: PENCIL_SPEC

```json
{
  "canvas": { "widthPx": 390, "heightPx": 844, "backgroundColor": "#ffffff" },
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "nodes": [],
  "components": [
    { "id": "tui-input_ex3", "name": "Input", "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 112 }, "zIndex": 1 }
  ]
}
```

### OUTPUT: PENCIL_BATCH_DESIGN

```text
CALL 1:
root=G()
screen=I(root,{type:"frame",name:"Screen"})
U(screen,{width:390,height:844,x:0,y:0})

CALL 2:
cmpBg=I(screen,{type:"rect",name:"Input/Background"})
U(cmpBg,{x:24,y:24,width:342,height:112,fillColor:"#ffffff",strokeColor:"#e5e7eb",strokeThickness:1,cornerRadius:12,opacity:1})
cmpText=I(screen,{type:"text",name:"Input/Error",content:"Error: Something went wrong…"})
U(cmpText,{x:40,y:60,width:310,height:20,textColor:"#6b7280",fontFamily:"Inter",fontSize:14,fontWeight:400})
```

### Example 4 — Focused with caret and clear button

### OUTPUT: TUI_RENDER

```text
┌──────────────────────────────────────────────────────────────┐
│ [Input]                                                     │
├──────────────────────────────────────────────────────────────┤
│ Email                                                       │
│ [ ada@example.com|___________________________ ]   [x]         │
├──────────────────────────────────────────────────────────────┤
│ Keys: <tab> next  <enter> commit  <esc> back                  │
└──────────────────────────────────────────────────────────────┘
```

### OUTPUT: COMPONENT_SPEC

```json
{
  "id": "tui-input_ex4",
  "name": "Input",
  "type": "tui-input",
  "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 120 },
  "zIndex": 1,
  "layout": { "paddingPx": 16, "gapPx": 8, "align": "left", "valign": "top" },
  "style": { "fillColor": "#ffffff", "textColor": "#111111", "strokeColor": "#111111", "strokeThickness": 1, "cornerRadius": 12, "opacity": 1 },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 400, "lineHeight": 20 },
  "overflow": { "mode": "truncate", "ellipsis": "…", "maxLines": 1 },
  "state": { "focused": true, "disabled": false, "loading": false, "error": null },
  "hotkeys": ["<tab>", "<enter>", "<esc>"]
}
```

### OUTPUT: PENCIL_SPEC

```json
{
  "canvas": { "widthPx": 390, "heightPx": 844, "backgroundColor": "#ffffff" },
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "nodes": [],
  "components": [
    { "id": "tui-input_ex4", "name": "Input", "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 120 }, "zIndex": 1 }
  ]
}
```

### OUTPUT: PENCIL_BATCH_DESIGN

```text
CALL 1:
root=G()
screen=I(root,{type:"frame",name:"Screen"})
U(screen,{width:390,height:844,x:0,y:0})

CALL 2:
field=I(screen,{type:"rect",name:"Input/Field"})
U(field,{x:24,y:24,width:342,height:72,fillColor:"#ffffff",strokeColor:"#111111",strokeThickness:1,cornerRadius:12})
label=I(screen,{type:"text",name:"Input/Label",content:"Email"})
U(label,{x:40,y:40,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:600})
value=I(screen,{type:"text",name:"Input/Value",content:"ada@example.com|"})
U(value,{x:40,y:64,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:400})
clear=I(screen,{type:"text",name:"Input/Clear",content:"[x]"})
U(clear,{x:340,y:64,width:26,height:20,textColor:"#6b7280",fontFamily:"Inter",fontSize:12,fontWeight:400})
```

### Example 5 — Password masking

### OUTPUT: TUI_RENDER

```text
┌──────────────────────────────────────────────────────────────┐
│ [Input]                                                     │
├──────────────────────────────────────────────────────────────┤
│ Password                                                    │
│ [ ••••••••••_______________________________ ]                │
├──────────────────────────────────────────────────────────────┤
│ Keys: <tab> next  <enter> commit  <esc> back                  │
└──────────────────────────────────────────────────────────────┘
```

### OUTPUT: COMPONENT_SPEC

```json
{
  "id": "tui-input_ex5",
  "name": "Input",
  "type": "tui-input",
  "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 120 },
  "zIndex": 1,
  "layout": { "paddingPx": 16, "gapPx": 8, "align": "left", "valign": "top" },
  "style": { "fillColor": "#ffffff", "textColor": "#111111", "strokeColor": "#e5e7eb", "strokeThickness": 1, "cornerRadius": 12, "opacity": 1 },
  "typography": { "fontFamily": "Inter", "fontSize": 14, "fontWeight": 400, "lineHeight": 20 },
  "overflow": { "mode": "truncate", "ellipsis": "…", "maxLines": 1 },
  "state": { "focused": true, "disabled": false, "loading": false, "error": null },
  "hotkeys": ["<tab>", "<enter>", "<esc>"]
}
```

### OUTPUT: PENCIL_SPEC

```json
{
  "canvas": { "widthPx": 390, "heightPx": 844, "backgroundColor": "#ffffff" },
  "grid": { "cellWidthPx": 8, "cellHeightPx": 16 },
  "nodes": [],
  "components": [
    { "id": "tui-input_ex5", "name": "Input", "bbox": { "topPx": 24, "leftPx": 24, "widthPx": 342, "heightPx": 120 }, "zIndex": 1 }
  ]
}
```

### OUTPUT: PENCIL_BATCH_DESIGN

```text
CALL 1:
root=G()
screen=I(root,{type:"frame",name:"Screen"})
U(screen,{width:390,height:844,x:0,y:0})

CALL 2:
field=I(screen,{type:"rect",name:"Input/Field"})
U(field,{x:24,y:24,width:342,height:72,fillColor:"#ffffff",strokeColor:"#e5e7eb",strokeThickness:1,cornerRadius:12})
label=I(screen,{type:"text",name:"Input/Label",content:"Password"})
U(label,{x:40,y:40,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:600})
value=I(screen,{type:"text",name:"Input/Value",content:"••••••••••"})
U(value,{x:40,y:64,width:310,height:20,textColor:"#111111",fontFamily:"Inter",fontSize:14,fontWeight:400})
```

## Component Summary Row (for page aggregation)

```text
| id | name | top | left | width | height | z | keyProps | state | hotkeys |
| tui-input | Input | 0 | 0 | 0 | 0 | 0 | keyProps=... | state=... | hotkeys=... |
```

## 国内适配

- 支持中文文档和中文注释
- 示例代码兼容国内开发环境
- 提供中文 FAQ 和常见问题解答

## 能力边界

### ✅ 适用场景
- 当你需要使用此技能对应的技术栈时
- 当项目需要遵循最佳实践时
- 当需要快速上手或深入理解核心概念时

### ⚠️ 需要注意
- 复杂业务逻辑需要结合具体场景调整
- 性能优化需要根据实际数据量评估

### ❌ 不适用场景
- 不相关的技术栈或框架
- 需要完全自定义的特殊场景

## 使用流程

### Step 1: 环境准备
确保开发环境已安装必要的依赖和工具。

### Step 2: 配置初始化
根据项目需求进行基础配置。

### Step 3: 核心功能使用
按照示例代码实现核心功能。

### Step 4: 测试验证
运行测试确保功能正常。

### Step 5: 部署上线
完成开发后进行部署和监控。