GitHub App installation tokens

Everything Fervor AI has published that touches GitHub App installation tokens — 2 pieces, newest first.

• GitHub's 520-Character App Tokens Will Break the Glue Code Your Agents Run Through

  GitHub's installation tokens grew from 40 to about 520 characters on October 2, and the most dangerous breakage is not a failed length check but a redaction rule, like…

• Briefing · October 4, 2026 · afternoon

  Between October 1 and 3, Cloudflare and GitHub both reworked code-hosting plumbing for machine callers, from Cloudflare's agent-scale Artifacts challenge to GitHub's…