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'%20stop-opacity%3D'0.16'%2F%3E%3Cstop%20offset%3D'1'%20stop-color%3D'rgb(200%2C90%2C60)'%20stop-opacity%3D'0.03'%2F%3E%3C%2FlinearGradient%3E%3C%2Fdefs%3E%3Crect%20width%3D'320'%20height%3D'200'%20fill%3D'url(%23g)'%2F%3E%3Ccircle%20cx%3D'250'%20cy%3D'56'%20r%3D'92'%20fill%3D'rgb(200%2C90%2C60)'%20fill-opacity%3D'0.06'%2F%3E%3Ccircle%20cx%3D'64'%20cy%3D'172'%20r%3D'58'%20fill%3D'rgb(200%2C90%2C60)'%20fill-opacity%3D'0.05'%2F%3E%3C%2Fsvg%3E)
From toon-formatter
Guidance on when and how to use TOON (Token-Oriented Object Notation) — a compact JSON alternative that typically cuts input tokens 30-50% on tabular data. Use when the user is about to paste or serialize a large JSON array into a prompt, has a payload with ≥5 uniform objects, or is optimizing an LLM pipeline for cost/context. Knows the format shapes (tabular `[N]{a,b}:` rows, inline `[N]: ...`, expanded), when TOON helps vs hurts, and how to invoke installed TOON commands or wrappers when available. Example queries — "convert this API response to TOON", "will this JSON benefit from TOON", "how does TOON handle nested objects".
How this skill is triggered — by the user, by Claude, or both
Slash command
/toon-formatter:toon-formattersonnetThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
Use TOON when it materially reduces prompt size without making the payload harder to inspect or validate. It is strongest for large, mostly uniform arrays and weakest for small, nested, or irregular data.
Use TOON when it materially reduces prompt size without making the payload harder to inspect or validate. It is strongest for large, mostly uniform arrays and weakest for small, nested, or irregular data.
YES - Use automatically:
NO - Keep as JSON:
Tabular (uniform objects):
[3]{id,name,role}:
1,Alice,admin
2,Bob,user
3,Carol,user
Inline (primitives ≤10):
tags[4]: js,react,node,api
Delimiters: comma (default), tab [N\t], pipe [N|]
Key folding (nested objects):
server.host: localhost
server.port: 8080
# Claude installs include slash commands that call this wrapper:
node .claude/utils/toon/cli.mjs encode data.json
# With options:
node .claude/utils/toon/cli.mjs encode data.json --delimiter tab --no-key-folding
# Compare token savings:
node .claude/utils/toon/cli.mjs analyze data.json
# Decode TOON to JSON:
node .claude/utils/toon/cli.mjs decode data.toon
If the wrapper or slash commands are not installed in the target project, use an available @toon-format/toon CLI/library or convert manually from the spec and validate the result.
/toon-encode <file> - JSON to TOON/toon-decode <file> - TOON to JSON/toon-validate <file> - Validate TOON/analyze-tokens <file> - Compare savings/convert-to-toon <file> - Full conversion workflowreferences/toon-guide.mdGuides reception of code review feedback: verify before implementing, avoid performative agreement, push back with technical reasoning when needed.
Design banners for social media, ads, website heroes, and print with multiple art direction options and AI-generated visuals.
npx claudepluginhub ditto190/modme-raintree --plugin toon-formatter