readable-text-formatting

A formatting guide for readable Markdown tables, text diagrams, ASCII art, and other fixed-width text layouts. It explains how to keep columns, borders, and spacing aligned.

In plain words
What is it for?
Use it whenever you generate tables, box drawings, diagrams, or other monospace-formatted text.
Why use it?
It prevents formatted text from becoming difficult to read when viewed in a plain-text editor or terminal.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/musingfox/cc-plugins/readable-text-formatting
Any agent
npx skills add musingfox/cc-plugins --skill readable-text-formatting
Clone the repo
git clone --depth 1 https://github.com/musingfox/cc-plugins

Made for: Claude Code, Codex.

Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 714 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00059 $0.00714
Opus 5 $0.00030 $0.00357
Sonnet 5 $0.00012 $0.00143
Haiku 4.5 $0.00006 $0.00071

Measured yesterday against content hash 2b2d92c90ef9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

readable-text-formatting scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

readability/skills/readable-text-formatting/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Readable Text Formatting

Ensure all generated formatted text is human-readable in raw monospace form. This applies to markdown tables, ASCII diagrams, and any text with visual structure.

Core Principles

  1. Alignment is for human readers — raw .md files should be scannable in a text editor
  2. Consistent column width — each column padded to the longest content in that column
  3. Border alignment — all vertical and horizontal boundaries align perfectly

Markdown Tables

The Problem

| Name | Age | Occupation |
|---|---|---|
| Alice | 30 | Software Engineer |
| Christopher | 45 | Product Manager |

The Solution

| Name        | Age | Occupation        |
|-------------|-----|-------------------|
| Alice       | 30  | Software Engineer |
| Christopher | 45  | Product Manager   |

How to Create Aligned Tables

Step 1: Determine column widths — for each column, find max(header_length, max(all_data_lengths)).

Step 2: Pad all cells — add trailing spaces to reach the column width.

Step 3: Create separator — fill with dashes matching the column width exactly.

ASCII Diagrams

The Problem

┌─────────────┐
│ Title Here │
│ Some content that is longer │
└─────────────┘

The Solution

All borders must align vertically:

┌──────────────────────────────┐
│ Title Here                   │
│ Some content that is longer  │
└──────────────────────────────┘

How to Create Aligned Diagrams

Step 1: Find maximum content width — the longest line inside the box.

Step 2: Calculate border widthcontent_width + 2 (padding) + 2 (border chars).

Step 3: Build each line:

  • Top: + dashes +
  • Content: + text + padding +
  • Bottom: + dashes +

Self-Check Before Output

Before finalizing any formatted text, verify:

  1. Visual alignment — all vertical lines align, all horizontal lines are continuous
  2. Width consistency — every row/line has the same total width
  3. Border integrity — top and bottom borders match width, left and right borders align on every line

Read the full file on GitHub · 99 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 99 lines · 59 tokens per session scan A 2b2d92c90ef9

Subscribe to this mod's changes

readable-text-formatting is a skill published in the GitHub repository musingfox/cc-plugins (2 stars, last pushed 2d ago), licensed MIT. It adds 59 tokens to every session and 714 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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