Summary

• fork immutable parent authority and working context into a required ChildRunScope, with independent child activity state
• model child termination as typed completion variants so failed and cancelled runs cannot carry mergeable context
• make Git working-context inspection asynchronous, injectable, aggregate-bounded, and explicitly classified
• correlate actor continuations by generation and preserve turn-scoped prompt state across the async boundary
• merge only child-confirmed file changes; keep Git-observed worktree changes non-attributed
• update SPEC-002, OpenSpec tasks, and the versioned operations/projects skills

Behavior contract

This is a behavior-preserving architecture refactor. MCP schemas and persisted actor contracts are unchanged. Public turns still never inspect Git. Git failure remains non-fatal and visibly unavailable. Successful/partial children retain confirmed-file handoff; failed/cancelled children cannot update parent context.

Validation

• dotnet test Netclaw.slnx --no-restore — all runnable tests pass (Actors 2613, Daemon 827, CLI 1252, plus supporting projects; environment-gated integration tests skipped)
• focused session/subagent/Git suite — 115 passed
• dotnet slopwatch analyze — 0 issues
• pwsh ./scripts/Add-FileHeaders.ps1 -Verify — pass
• openspec validate simplify-tool-execution-context --strict — valid
• git diff --check — pass

The behavioral eval harness cannot run locally because no eval provider type, endpoint, or model credentials are configured. The dotnet-skills CRAP collector workflow is unavailable because this repository does not include the XPlat coverage collector; the full actor assembly passes.

Advances #1633. The issue will be closed after merge and post-merge acceptance verification.