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Skillsascii-ansi-colorizer

ascii-ansi-colorizer

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Updated 10-16 03:15

About this skill

When to use this skill

CRITICAL TRIGGER RULE

  • Use this skill ONLY when the user explicitly mentions the exact skill name: ascii-ansi-colorizer.

Trigger phrases include:

  • "ascii-ansi-colorizer"
  • "use ascii-ansi-colorizer"
  • "Colorize ASCII with ascii-ansi-colorizer"
  • "Use ascii-ansi-colorizer for ANSI gradients/rainbows"

Boundary

  • This skill only adds color to existing text. It does not generate the ASCII art itself (pair with ascii-cli-logo-banner if needed).
  • Required outputs: coloredText + plainTextFallback.
  • ANSI must not break alignment: do not colorize spaces by default; colorize visible characters only.

How to use this skill

Inputs

  • textOrAscii (required)
  • palette (rainbow | gradient | brandColors)
  • direction (leftToRight | topToBottom, default leftToRight)
  • colorDepth (ansi16 | ansi256 | truecolor, default ansi256)
  • scope (logoOnly | highlightsOnly | fullText, default logoOnly)

Outputs (required)

  • coloredText: ANSI-colored output
  • plainTextFallback: no-color fallback (identical content, no ANSI)
  • compatNotes: copy/paste and redirection guidance (NO_COLOR / --no-color suggestions)

Steps

  1. Pick colorDepth (default: ansi256).
  2. Choose a stable coloring strategy:
    • Column-wise gradients (leftToRight) are usually the safest
    • Colorize non-space characters only
  3. Output both coloredText and plainTextFallback.
  4. Provide no-color guidance (semantic suggestions): NO_COLOR / --no-color.

Output Format

Outputs should be structured as three distinct text blocks:

coloredText:
  \033[38;5;33mH\033[38;5;34me\033[38;5;35ml\033[38;5;36ml\033[38;5;37mo\033[0m

plainTextFallback:
  Hello

compatNotes:
  - Respect NO_COLOR env var: if set, output plainTextFallback only
  - Support --no-color flag for CLI tools
  - Pipe/redirect: detect non-TTY and fall back to plain text

Workflow

  1. Receive text input and validate it is non-empty
  2. Select colorDepth (default ansi256) and palette
  3. Apply coloring to visible characters only (skip spaces to preserve alignment)
  4. Generate both coloredText and plainTextFallback
  5. Validate: Strip ANSI codes from coloredText and compare with plainTextFallback — they must match

Script

  • scripts/colorize.py: apply ANSI 256 gradient or rainbow to stdin

Examples

  • examples/gradient.md

Quality checklist

  1. Removing ANSI keeps the same readable content (plainTextFallback).
  2. Alignment does not change after coloring.
  3. Colors should not overpower the informational lines.

Keywords

English: ascii-ansi-colorizer, ansi, color, gradient, rainbow, terminal, no-color, plain text, ascii Chinese: ascii-ansi-colorizer, ANSI, coloring, gradient, rainbow, terminal, no-color fallback, plain text, ASCII