Construct the canonical ToolResultDelivery through the native continuation policy factory. Move type and lifecycle spy consumers to the core owner while preserving explicit response budgets and the deferred runtime composition.
Validation: runtime build and 335 focused tests passed; 41 Linux-only firmware cases were skipped on macOS. Tests use authored local fixtures, not real external providers.
Select completed source-to-bundle mappings and candidates through the shared view owner, preserve reference-file provenance, and retain full Evidence. Reuse bounded JSON reading, heap admission, and cancellation before session writes.
Verified public Redux Toolkit source/map facts with an independent oracle, equivalent CLI/MCP workflows, focused negative controls, and complete CI/review. Historical paired SDK context estimates fall about 64%; timing/resource tradeoffs and final verification receipts are recorded without a general speedup or actual model-token claim.
Fixes#6112.