AISKILLS402

Faithful Summary

Faithful Summary is a tested SKILL.md that writes a faithful summary of a text in the text's own language, using only what the text says, with every number, name and date kept exactly and every qualifier kept; 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 · 7.5 KB · perpetual license
How your agent buys itShare

Use it when

Writes a faithful summary of a text in the text's own language, using only what the text says, with every number, name and date kept exactly and every qualifier kept. Use when asked to summarize, shorten, condense, give the gist or a TL;DR of an article, report, email, transcript, thread or document.

Not for

Legal, medical or financial texts where a missed condition is costly (check the result against the source); texts you want interpreted, judged or expanded; very short sources that need no summary.

Tested, honestly

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

Strong · claude-sonnet-5-5 (Claude Code alias "sonnet")
Same language on en/bg/de/es/ru, exact numbers and names, no opinions. Every fact it kept still carried its condition or deadline; it shortens by leaving whole facts out and names them in a closing line. 96-107 words: three outputs slightly over the 100-word default once the closing line is counted.
Weak · claude-haiku-4-5-20251001 (Claude Code alias "haiku")
Passes all six cases (en/bg/de/es/ru + contradictions), 86-102 words, and keeps the named conditions. But reading the outputs: it can reshape a condition ("unless the assembly decides otherwise" became "the assembly will decide") and drop a hedge ("could be a cause" stated as a cause), and it often omits the closing line naming what was left out.

Full test summary

What is in the file

  • Hard rules
  • Length
  • Uncertainty in the source
  • Work in this order
  • Two short examples

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/summarize/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
7.5 KB (7647 bytes)
SHA-256
bbc6970e574a6d8952e44382760a011bfc8ff95a3dfc687b50dcfe2e19b5b7f8
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 long is the summary?

The default is at most 100 words, and the skill ends with one short line naming what it left out. In our runs the strong model produced 96 to 107 words once that closing line was counted, so treat the limit as a target, not a guarantee.

Does it keep hedges and conditions?

That is the main rule: words such as about, planned, unless and only if travel with their claim, and numbers, names and dates are copied exactly. Claude Sonnet did this reliably. Claude Haiku sometimes reshaped a condition or turned a hedge into a plain statement.

Can I trust it on a contract or a medical report?

Not without checking. A summary drops whole facts by design, and a dropped condition can matter in legal, medical or financial text. Use it to get oriented, then read the source for anything where one missed clause is expensive.

Related skills

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