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ClaudSkills / Dev Tools / linters-formatters

toon-formatter

Category: Dev Tools  ·  Sub-category: linters-formatters  ·  Last updated:
AGGRESSIVELY use TOON v2.0 format for biggish regular data (≥5 items, ≥60% uniform). Auto-applies to tables, logs, events, transactions, analytics, API responses, database results. Supports 3 array types (inline, tabular, expanded), 3 delimiters (comma, tab, pipe), key folding for nested objects. Triggers on structured data, arrays, repeated patterns. Use TOON by default when tokens matter - RAG pipelines, tool calls, agents, benchmarks. Keywords "data", "array", "list", "table", "log", "transaction", "metric", "analytics", "API", "database", "query", "TOON".
Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

toon-formatter includes at least one code block.

Original author
David-Li0406
Indexed lastmod
Catalog position
Dev Tools · linters-formatters
Indexed related skills
10

How toon-formatter fits the catalog

toon-formatter sits in the Dev Tools category under the linters-formatters sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

AGGRESSIVELY apply TOON format to save 30-60% tokens on structured data.

What this skill does

toon-formatter is a community-contributed Claude Code skill in the linters-formatters sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/toon-formatter-3/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The toon-formatter Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/toon-formatter-3
curl -L https://claudskills.com/skills/toon-formatter-3/SKILL.md \
  -o ~/.claude/skills/toon-formatter-3/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/toon-formatter-3/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/toon-formatter-3/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\toon-formatter-3\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the toon-formatter Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/toon-formatter-3/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the toon-formatter skill do?
AGGRESSIVELY use TOON v2.0 format for biggish regular data (≥5 items, ≥60% uniform). Auto-applies to tables, logs, events, transactions, analytics, API responses, database results. Supports 3 array types (inline, tabular, expanded), 3 delimiters (comma, tab, pipe), key folding for nested objects. Triggers on structured data, arrays, repeated patterns. Use TOON by default when tokens matter - RAG pipelines, tool calls, agents, benchmarks. Keywords "data", "array", "list", "table", "log", "transaction", "metric", "analytics", "API", "database", "query", "TOON".
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the toon-formatter skill?
Use toon-formatter when your Claude Code task falls under the Dev Tools category — specifically in the linters formatters area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use toon-formatter" or describe the task and let Claude pick). Browse related skills at /category/tools/.
What is a Claude Code skill and how does the toon-formatter skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. toon-formatter is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
David-Li0406. (2026). toon-formatter [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/toon-formatter-3/
BibTeX
@misc{toon-formatter-3-2026,
  author    = {David-Li0406},
  title     = {toon-formatter [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/toon-formatter-3/}
}

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Security scan

Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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Browse all Dev Tools skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Dev Tools skills → Top 100 skills
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