Claude Code skills · updated 2026-10-03

Encryption export notice skill for Claude Code — EAR 742.15(b), TSU and ECCN

Checks the export notice in your crypto project's README against EAR 742.15(b)

On one 13-line README it printed 6 findings (4 errors, 2 warnings) from 10 rules, each with file:line and the rule's official source.

Get it on Whop - $12 onceGet it on Gumroad

Who it's for

For maintainers of open-source encryption libraries and the US companies that publish crypto code on GitHub.

What breaks, and when

BIS removed License Exception TSU / EAR 740.13(e) for source code in the 20 September 2016 rule (81 FR 64656); notices that still cite it, or call 5D002 source EAR99, point at rules that no longer apply.

What it printed on the bundled example

== Crypto Export Notice Lint (EAR 742.15) — 6 findings (4 errors, 2 warnings) in 1 file · 10 rules
  ERROR README.md:5  [missing_nsa_email]
        No [email protected] in the notice. The same 742.15(b)(2) notification goes to the ENC Encryption Request Coordinator as well as to BIS.
  ERROR README.md:5  [missing_eccn]
        No ECCN in the notice (5D002, 5E002, 5A002 or 5D992). Publicly available encryption source code is classified before it is published, not after.
  ERROR README.md:7  [removed_tsu_citation]
        This notice cites License Exception TSU / EAR 740.13(e) for encryption source code. BIS removed that paragraph in the 20 September 2016 encryption rule (81 FR 64656) and moved the notification to 742.15(b).
  ERROR README.md:7  [false_exemption_claim]
        The notice claims the code is outside export control (or EAR99) because it is open source. Under 742.15(b) publicly available 5D002 source leaves the EAR only once 742.15(b)(2) is met (an email for non-standard cryptography), and EAR99 is not a classification for 5D002 encryption source.

What you get

• A scanner Claude runs over every Markdown file - not a guess from memory
• 10 rules: BIS and NSA emails, URL, ECCN, TSU and EAR99 wording, notification date, re-notify clause
• Each rule carries its official source: 15 CFR 742.15, 81 FR 64656, 86 FR 16482
• Claude proposes the edits and applies them only after you say yes; exit 1 in CI on any error

Install

Unzip into ~/.claude/skills/ (all projects) or your-repo/.claude/skills/ (one repo), then ask Claude Code: "We publish an encryption library on GitHub and our README has an old export control section. Can you check whether it still matches the current BIS rules? Don't edit anything yet.". Needs Node 16+.

unzip encryption-export-notice-check.zip -d ~/.claude/skills/

Ask Claude

“We publish an encryption library on GitHub and our README has an old export control section. Can you check whether it still matches the current BIS rules? Don't edit anything yet.”

What it does not do

Reads Markdown only; it does not classify your product, file with BIS or NSA, or give legal advice.

FAQ

What is a Claude Code skill?

A folder with a SKILL.md and scripts that Claude Code loads when your request matches it. You ask in plain words and Claude runs the scanner the skill carries.

How is this different from asking Claude without the skill?

The skill carries a dated rule table and a scanner that reads every file, so Claude quotes the exact date and line instead of answering from memory.

Does it send my code anywhere?

Reads Markdown only; it does not classify your product, file with BIS or NSA, or give legal advice.

How do I install it?

Unzip into ~/.claude/skills/ (all projects) or your-repo/.claude/skills/ (one repo), then ask Claude Code: "We publish an encryption library on GitHub and our README has an old export control section. Can you check whether it still matches the current BIS rules? Don't edit anything yet.". Needs Node 16+.

What do I get when I buy?

The zip. On Whop it is in your library as a download lesson with the zip attached; on Gumroad it is the product file.