On the bundled sample: 15 findings (4 errors, 11 warnings) in 1 file from 19 rules, including RSA under 2048 bits, PKCS1v15 padding, an ssh_host_dsa_key and a TLS group list with no hybrid.

Who it’s for
For security and platform engineers who have to plan the move off RSA and elliptic-curve crypto.

What breaks, and when
NIST IR 8547 deprecates RSA and ECC (112-bit security) after 2030 and disallows them after 2035, and RSA under 2048 bits is already disallowed today.

What you get
• SKILL.md, an offline Node scanner (scripts/scan.js) and the 19-rule table

See it first
The real output of the bundled example is on getreadystack.com/skills/post-quantum-crypto-audit/ — free, no sign-up, so you see what it finds before you pay.

Install in 30 seconds
Unzip into ~/.claude/skills/, then ask Claude Code: “Are we ready for post-quantum crypto? Find every RSA, ECDSA and weak hash in this repo and tell me what replaces each. Don’t edit anything yet.”. Needs Node 16+.

What it does not do
It does not connect to servers, read certificates or binaries, or see library-default crypto; no network calls, no edits without your OK.

FAQ
Q: How is this different from asking Claude without the skill?
A: The skill carries a dated rule table and a scanner that reads every file, so Claude quotes the exact date and line instead of guessing from memory.
Q: How do I get the files?
A: In your Whop library after paying: the lesson “post-quantum-crypto-audit.zip”.