# Phase 29z: RC insertion minimal（Phase 29y follow-up）

Status: P1 Complete  
Scope: Phase 29y の SSOT（RC insertion / ABI / observability）を前提に、**RC insertion pass を最小動作**まで進める。  

Entry:
- SSOT: `docs/development/current/main/phases/phase-29y/20-RC-INSERTION-SSOT.md`
- 指示書: `docs/development/current/main/phases/phase-29z/P0-RC_INSERTION_MINIMAL-INSTRUCTIONS.md`

Opt-in:
- `rc-insertion-minimal` Cargo feature（既定OFF）

Verification:
- `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick`
- `cargo run --bin rc_insertion_selfcheck --features rc-insertion-minimal`

Progress:
- P0: overwrite release（Store 上書き）
- P1: explicit drop（Store null）を最小対応