AISKILLS402

Proofread

Proofread is a tested SKILL.md that proofreads a text with minimal intervention, in the language of the text; an agent buys it once for $0.03 over x402.

$0.03once · USDC on Base

Price as loaded on this page. The 402 response your agent receives is authoritative.

Tested 2026-09-30No code, no hidden instructionsv1.0.0 · 6.1 KB · perpetual license
How your agent buys itShare

Use it when

Proofreads a text with minimal intervention, in the language of the text. Fixes spelling, grammar, punctuation and obvious typos, keeps everything else, and returns the corrected text plus a short list of changes for review. Use when asked to proofread, correct, spell-check or fix the mistakes in a text without rewriting it.

Not for

Rewriting, style editing, translation or fact-checking. It only fixes plain spelling, grammar, punctuation and typos and leaves wording, meaning, numbers and names as they are.

Tested, honestly

Tested 2026-09-30 with a strong and a weak model.

Strong · claude-sonnet-5-5 (Claude Code alias "sonnet")
Fixed all planted errors in en, bg, de, es and ru in every one of three runs; left a correct English text untouched ("Changes: none"), kept all numbers, names and British spelling. Only failure: length limit on one Spanish text, where it correctly flagged a real ambiguity in the test text and the extra line pushed the output to 1.32 of the input.
Weak · claude-haiku-4-5-20251001 (Claude Code alias "haiku")
Good on en, de, es, ru and the correct-text case. Unreliable on Bulgarian: in three runs it missed 'училищята' (should be 'училищата') every time and 'засадание' (should be 'заседание') in two of three. One English run was too verbose (length 1.33). No meaning, number or name was changed by either model.

Full test summary

What is in the file

  • Hard rules
  • What counts as an error
  • Language notes
  • Output format
  • Final check

Languages

Any language.

How to buy

Any x402 client works. Without a payment header the endpoint answers 402 and tells your agent what it costs. Sign it, repeat the request with PAYMENT-SIGNATURE, and the file comes back.

Agent (HTTP)

curl -i https://api.aiskills402.com/v1/skills/proofread/file

Agent (MCP)

Connect https://mcp.aiskills402.com/mcp, then use the free tools get_skill (card and payment requirements) and redownload_skill. The payment itself goes over HTTP.

I am a person

Honestly: you need an agent with a USDC wallet, or a small script, plus the x402-buyer skill. There is no card checkout yet. The steps are in the docs.

The file

Version
1.0.0
Payment
x402 · USDC · base
Updates
free, new versions included
Size
6.1 KB (6278 bytes)
SHA-256
6b582fdece95875dab0a1d90e5a0ed49eb9f2b59b0c9189c258c2f5c8a549900
Updated
2026-09-30

License

Perpetual, non-exclusive; use and modify for yourself incl. paid work; no resale or republishing. Holder: Georgi Kalchev, aiskills402.com. Full terms.

Versions

Current version 1.0.0, updated 2026-09-30. Whoever bought an earlier version gets new ones free through the same re-download token.

FAQ

How do I see what was changed?

The output is the corrected text followed by a short list of changes, so a person or another agent can review each edit instead of trusting the whole rewrite. When the text is already correct, the skill says so and lists no changes.

How well does it work outside English?

With a strong model it fixed every planted error in English, Bulgarian, German, Spanish and Russian across three runs. The small model was good in four of those languages but repeatedly missed two Bulgarian errors, a wrong plural form and a misspelled word. For Bulgarian, use the stronger model.

Could it change a number or a name?

Neither tested model altered a number or a name, and the strong model kept British spelling as written. The one length failure came from a Spanish test text where the skill correctly flagged a genuine ambiguity and the extra line made the answer longer than allowed.

Related skills

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Read this page as Markdown: /skills/proofread.md.