The Library
Tested code you buy once and keep. Choose a book to look inside.
Swipe along the shelves. Prefer a list? Every price is in the table below.
The front desk
Not a book: a free connection for your AI assistant, and keys that open the paid tools behind it.
AIS Gateway
MCP server · connect free
The AIS campus for AI assistants: a free front-desk MCP server that lists every building, plus two product buildings — daily CVE prioritization (ranked by real exploitation) and the Agent Flight Recorder (dead-man alerts + resume for autonomous agents). Free tools answer immediately; every tool has an HTTP twin for scripts and cron.
Gateway keys
Gateway key · $19 / 30 days
Per-building keys or the campus pass. A key unlocks every paid tool and HTTP route in the buildings its scope covers — no wallet, no per-call payments. Paste it once; new tools in your buildings are yours automatically.
The catalog
Every price is public. Digital downloads are final — each product has a free way to evaluate it first (frozen samples, daily videos, free snippets), so you know exactly what you’re buying.
| Product | Price | Model | What you get |
|---|---|---|---|
| Free | Free download | Four beginner patterns with tests: prompt structure, structured output, tool calling, context basics | |
| $19 | One-time purchase | Stage 0 — 48 tested patterns, one per episode (1–48) of the Agent Foundations series; stdlib only, drop-in compatible with the free starter pack | |
| $99 | One-time purchase | Stage 1 — one reliable agent: 71 tested patterns from the daily series (episodes 1–17 and 28–81); free updates included | |
| $79 | One-time purchase | Stage 2 — many steps coordinating: routing, fan-out/fan-in, orchestrator-worker, checkpoints, approval gates | |
| $129 | One-time purchase | Stage 3 — safe in production: injection quarantine, tool permission gates, secret hygiene, spend ceilings, kill switch, audit log | |
| $199 | One-time purchase — bundle | All three engineering libraries in one download — 91 tested patterns, free updates as each library grows | |
| $49 | One-time purchase | Tested admin scripts with Pester tests: health, services, disks, event logs, scheduled tasks, registry, local admins, inventory, shares, patching, remoting, Active Directory and Group Policy, plus security auditing: event IDs, audit policy, secrets, script signing, AppLocker, JEA, Defender, firewall, TLS and baselines; runs on 5.1 and 7 | |
| $49 | One-time purchase | Python CLI + daily-regeneratable reports + methodology docs + MIT companion CLI | |
| $19 | Access key — 30 days | Unlocks the daily ranked CVE API and its MCP tools for your agent: the full ranked list with scores, fresh KEV additions, per-CVE verdicts | |
| $19 | Access key — 30 days | 20 monitors with stored state capsules, fleet view and resume links — dead-man alerts for agents and cron jobs | |
| $29 | Access key — 30 days | Every building and every paid tool on the gateway, including buildings added while your pass is live | |
| $149 | Access key — 12 months | The whole campus for a year — under $12.50 a month, paid once, nothing renews | |
| $34.99/mo | Subscription — founding list open now, no charge today | Full ranked CVE list + the reasoning, delivered weekly in plain English |
The Loop Engineering Code Library’s price steps up as the pattern collection reaches milestones — early buyers keep every future update free. One-time purchases check out here by card or crypto and the files arrive by email; The Brief’s founding list is free to join and locks your launch price.
Your copy, your terms
One purchase, one license, yours indefinitely. These terms cover every paid product.
What you can do
- Use it internally across your team or organization, on as many machines as you need.
- Modify it for your environment and paste the patterns into your own codebase.
- Ship what you build with it, including in commercial work.
- Keep using it indefinitely, and re-download updates from your purchase link.
What you can’t do
- Resell it, repackage it as your own product, or publish the source.
- Strip the attribution and re-publish it as your own work.
- Share your download link publicly — links are per purchase.
The companion CLI cve-rank is MIT-licensed and unrestricted. The CVE Priority Kit carries an additional defensive-use condition.
Ask the librarian
A person reads every message — there is no ticket queue and no bot.
[email protected]Purchase questions, download or install trouble, licensing for a larger team, or a bug in any pattern. Reply within two business days.
