Integrate the observed master checkpoint 7ab215e23e5d977aae7eb5d4fb91782d39969dbb without rewriting the earlier published checkpoints. Master adds current-directory events, directory-aware consumers, and retained Git worktrees; its old subagent startup paths overlapped the unified activation implementation.
Resolve directory selection within managed startup after acquiring parent ownership. Preserve the original Session origin while setting each new local child directory, retain persisted directory state on cold resume, and pass a required absolute cwd to external providers. Keep unified local/external ownership, full completion notices, parked-input host completion, SDK wait/error/shutdown behavior, and ACP cancellation semantics. Retain removal of the old in-process driver and continuation managers.
Combine SDK wait with the new directory requests, preserve the new master directory/worktree fixtures, regenerate derived catalogs from the combined sources, and refresh only the four stale prompt/schema sidecars. Preserve every protected historical schema, archived note, catalog-v2 acknowledgement, and recorded predecessor input.
Validation: full build; 59 CI static gates; 855 subagent tests with 100% coverage on changed core/external sources; affected consumer suites including 119 repaired-fixture tests; SDK 11 and headless 16 recorded scenarios; two local headless expected cases; six built nested SDK/ACP cases; lint, strict cast inventory, workspace constraints, and whitespace checks. Native Windows worker diagnostics remain additive and require the next CI run to classify the original crash.
A local child can have send_message available and still finish with a plain
text answer or use the tool only for progress. Selecting completion content
from tool availability drops that captured answer and leaves the parent
with a status-only notice. The recorded spawn case already demonstrates
this: its child returns CHILD_OK without calling the available tool.
Remove the includeClosingText policy and pass every captured final text
through the existing text-only notice renderer. Preserve structured
results, safe diagnostics, external continuation wording, and caller-only
result delivery. No delivery ledger or additional lifecycle state is
needed. A child that sends its final answer explicitly may repeat it in the
completion notice; that cost is preferable to making result delivery
depend on model compliance.
Extend the real-loop parent-result regression with an available-but-unused
messaging tool, restore the unconditional lifecycle expectation, and pin
text alongside structured results and diagnostics. The new regression
fails on the prior implementation because CHILD_RESULT_42 is missing.
Update the owning bilingual descriptions and the exact parent notice
content in headless and TypeScript SDK recordings. Keep replay streams,
released generations, and unrelated recorded clocks unchanged.
Validation: 317 focused lifecycle/workflow tests; full build; 26 focused
headless/SDK replays; Python SDK advanced/recovery smoke (unchanged
fixtures); test:docs (20 gates); doc-sync (42 gates); full lint;
git diff --check.
Regenerate only native V3 Session/output oracles through the shipped headless and SDK profiles. These outputs retain system-message admission before users, bind request metadata before title fallback, and record real V3 delivery acknowledgments. Historical V0/V1/V2 replay inputs remain unchanged; pinned scenarios keep separate writer outputs.
The upper headless/SDK refresh covered109 cases; the only initial failure used macOS system Python3.9 for the PTC Python scenario, which passed with the declared CPython3.14 PATH. No assertion or runtime behavior was changed to accommodate it.
Retained V0/V1 fixtures remain replay inputs while writer.expected JSONL records the actual current V3 output. Record these through the shipped headless scenarios rather than reverse-normalizing system messages back into historical headers. Preserve generation-qualified reference provenance, and correct the unreleased PowerShell seed to start its step and protected system head before user surface input.
Validation: the structural migration, real persistence, corpus and snapshot-support gate passed616 tests with one intentional skip; all91 headless refresh cases pass after the audited assistant-attempt source handling. Every predecessor path remains restored to the shared V3 base, and generated changes are confined to V3/output oracles and current tool schema pins.
ZiyaZhang