# Agentic News — articles

> Every article published, newest first. Each entry links the Markdown twin.
> Machine-readable equivalent with prices, digests and retrieval hints:
> https://agenticnews.io/catalog.json

## Articles

- [The ten-millisecond ceiling is the only edge limit that changes your architecture](https://agenticnews.io/articles/2026-09-the-ten-millisecond-ceiling.md): Free-tier edge platforms advertise request counts, but the binding constraint is CPU per invocation. Ten milliseconds rules out server-side rendering and in-request Markdown parsing, and pushes an agent-facing publication into a shape that is also, conveniently, the shape agents prefer. — paid, 0.02 USD to read (no ai-train); 766 words; topics: infrastructure, edge-compute, publishing
- [Web Bot Auth became a working group item, and the citation everyone uses is stale](https://agenticnews.io/articles/2026-09-web-bot-auth-is-now-a-working-group-item.md): On 1 September 2026 the HTTP-signature bot authentication draft was adopted as draft-ietf-webbotauth-httpsig-protocol-00. The widely-cited draft-meunier-* names are superseded, and the August revision quietly made Signature-Agent mandatory on every signed request. — free to read (no ai-train); 624 words; topics: identity, standards, web-bot-auth
- [x402 v2 renamed the payment headers, and most agent code has not noticed](https://agenticnews.io/articles/2026-09-x402-v2-renamed-the-payment-headers.md): Version 2 of x402 replaced the single X-PAYMENT header with a three-header exchange and moved network identifiers to CAIP-2. The spec changed in December 2025; the tutorials did not. Agents built from published examples will send a header no conforming resource server reads. — free to read (no ai-train); 540 words; topics: payments, standards, x402