The PR #2536 cascade prune ('deprecated, no shipping images') was
empirically wrong. Re-confirmed 2026-05-03:
- continuous-synth-e2e.yml defaults to langgraph as its primary canary
- All 5 'deprecated' templates have successful publish-image runs in
the past 24h: langgraph, crewai, autogen, deepagents, gemini-cli
Symptom this fixes — issue #2566 (priority-high, failing 36+h):
Synthetic E2E (staging): langgraph adapter A2A failure
'Received Message object in task mode' — failing for >36h
Today at 11:06 commit e1628c4 fixed the underlying a2a-sdk strict-mode
issue in workspace/a2a_executor.py. publish-runtime fired at 11:13 and
cascaded — but only to claude-code, hermes, openclaw, codex. langgraph
was excluded by the prune, so its image stayed on the broken runtime
and the synth E2E (which defaults to langgraph) kept failing despite
the fix being live in PyPI.
After this lands + the next runtime publish fires, langgraph image
re-bakes with the fix and synth-E2E goes green.
Test plan:
- [x] yaml-validate the workflow
- [ ] After merge, watch publish-runtime cascade to all 9 templates
- [ ] Confirm langgraph publish-image fires + succeeds
- [ ] Confirm next continuous-synth-e2e run goes green
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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