[BUG] Routine GitHub issues.labeled trigger stopped firing ~July 2026 — no sessions created, fresh routines also affected

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

A routine with a GitHub event trigger on issue labeled (label filter: claude) stopped firing entirely around July 2026. It had worked reliably for weeks before that with no configuration changes on my side.

Adding or re-adding the label to an issue creates no session at all — nothing appears in the routine's run list at claude.ai/code/routines, so this is not the "session refuses prompt" regression from #78032.
Creating a brand-new routine from scratch with the same trigger (repo, issue labeled event, label filter) also never fires.
The Claude GitHub App is installed on the repository and shows as connected.
The trigger option (custom event → issue labeled with label filter) is still offered in the routine creation UI, but I note the docs at code.claude.com/docs/en/routines now only list Pull request and Release as supported events.
Possibly related: #81455 (issue-labeled trigger with label filter fails on update), #72290.

What Should Happen?

a new session starts for the matching event, as it did until ~July 2026.

Error Messages/Logs

Steps to Reproduce

Steps to reproduce

1. Create a routine at claude.ai/code/routines with a GitHub event trigger: issue labeled, label filter claude, on a repo with the Claude GitHub App installed.
2. Add the claude label to any issue in that repo.
3. Observe: no session is created; the run list stays empty.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

claude code web

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Non-interactive/CI environment

Additional Information

_No response_