* fix(agents): prevent OOM from cumulative tool history
Repeated progress updates retained complete historical copies of growing tool output. Retain projected items on ingestion and serve them for every history fetch, preserving source sequence coverage for catch-up. Keep intermediate payloads only in streaming; confine compatibility degradation to child transcripts and overwritten fork checkpoints.
* test(client): expect projected subagent capability in hello
* fix(app): report unexpected child history failures
Keep connection failures recoverable while forwarding unexpected fetch and reconciliation errors to diagnostics. Name observer arguments to keep server and agent identities explicit.
* test(agents): assert projected history after rewind
* docs(protocol): tag projected child compatibility gates
Mohamed Boudra
cdc669fde6