[rmcdaniel]

Part of #325. Follows #869.

What changes

Published PHP copies memos and search attributes to new child runs (inheritTypedVisibilityMetadata), each copy recorded as inherited at sequence 1:

• a parent run's to its child's first run;
• a failed child run's to the run retrying it.

Native copied them only on continue-as-new. So a child's description and run list showed an empty memo, and a visibility query for the parent's attribute did not find the child.

• Shared copy. Continue-as-new's memo and search-attribute copy is now two shared helpers in continuations.rs: inheritable_memos and inherit_visibility.
• Children. start_child and the child retry call them right after creating the run. Continue-as-new uses them unchanged.
• Object backoffs (Security's re-review of Rust #325: retry children and keep their timeout options as published PHP does #869). A child backoff sent as a JSON object, which PHP reads as its values, is now checked at admission like a list. Before, an extreme value of that shape was refused only when the retry started; it never overflowed.

Fixture child-visibility

Raw worker HTTP on protocol 1.20, in a fresh namespace with one registered keyword attribute. A parent started with a memo and the attribute starts one child under a retry policy. The probe records:

• the child's description;
• after a failure, the retry's description;
• the child's run list;
• a query for the attribute. PHP lists every matching child run, the failed first run and the pending retry alike.

Local checks

• child-visibility. It passes on a fresh published 2.11.7 harness and on native built from this branch, and compare accepts the pair.
• Neighbors. child-retries and continue-transfers pass on that native image.
• Rust suites. Library 363 and integration 640, all passing. Includes the new a_child_and_its_retry_inherit_the_parents_memos_and_search_attributes and an object-backoff extreme-value control.
• Node unit suite. 6383 pass. The one failure is the PhpImageContextTest local false failure.

Checkpoint.

🤖 Generated with Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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