• make verify
• scripts/format_examples.py --check
• make verify-python-version VERSION=3.13
• git diff --check
• Added or updated regression tests and verified they fail when the fix is reverted
• Manual verification: named route/flow, environment, and observed result in Summary

Before — [specific observable behavior]:

After — [specific observable behavior]:

Reproduction: [command] (base: [sha]; head: [sha]; viewport/state: [details])

If this changes examples:

• Updated files under src/example_sources/*.md
• Kept exactly one :::program block per example
• Kept :::cell source/output deterministic and executable
• Ran make verify-examples
• Ran make check-generated