published by gsterlingpress

6 listings on this page, in order of arrival. Each one has its own page with README, repository facts and source links.

1. FRESH — Shared URL Freshness Intelligence
   Decide whether an agent should reuse cached URL knowledge or fetch the resource again.
2. MAILTYPE — Email Domain Capability Intelligence
   Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.
3. ONCE — Exactly-Once Reliability for AI Agent Actions
   Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.
4. POSTFACT — Resolve Ambiguous Side Effects Before Retry
   Resolve whether an uncertain side-effecting action completed before software retries it.
5. PREFLIGHT — URL Routing for AI Agents
   Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.
6. RECOVER — Decide Safely After a Failed Machine Action
   Choose the safest next action after an API, MCP, or agent failure before retrying.