# Review report — PR #73 / Issue #71

Reviewed validation snapshot `/var/folders/q_/68sxgw3j073dgjg8wl9s08vw0000gn/T/mam-review/loop-20261026T133440Z-c8961b/2`: head `5f6065344f800c2c5ad6f802e95e9e8ff5cc7b26`, tree `98d57bdc60920238c115ece90c90cc694f2744bc`, base `29cc4fd90478936f15387a7665e2c95d13a3f14c`. The snapshot was clean; `git diff --check` reported no whitespace errors. No source files were changed.

## Findings

No blocking or non-blocking defects found in this pass.

The earlier rowless-stop finding about `HERDR_SESSION_NAME=default` was re-adjudicated in job `f40aa3bd` and withdrawn. That environment value is treated as unset by create: `create_session.sh:179-187,251-256` chooses the workspace server unless the caller supplies `--herdr-session`. Rowless stop follows the same resolution (`stop_session.sh:109-130`; `lib.sh:1681-1712`). The prior probe put an agent on `default` without the explicit option, a state that invocation of create would not produce. Deliberate default-server selection remains possible with `--herdr-session default` and the stop command accepts the same explicit option.

## Review checks

- `attach_command` is centralized in `lib_py/agents/sanitize.py` and used by create (`create_session.sh:512,566`), resume (`update_yaml_resumed.sh:119,151,161`), and reconcile (`reconcile.sh:569,676`). Coverage checks default server rendering, shell quoting, normalized names, and attach argument forwarding.
- Runtime references to removed `start_command` and `kill_command` fields are gone; only migration compatibility docs/code and assertions remain. The shim’s `new-session` and `kill-session` routes are still needed by the lifecycle scripts. Cleanup guidance now directs to the stop skill (`create_session.sh:364`, `lib_py/agents/id_order.py:342-345`).
- Rowless stop validates strict registry readability (`stop_session.sh:169-173`), refuses purge without a row (`124-126`), resolves cwd/root canonically before checking containment (`145-154`), and leaves registry bytes untouched (`156-164`). The safety and exit-code cases are covered by the new tests and the stop skill table (`SKILL.md:58-67`).
- The bash sanitizer is defined once (`lib.sh:44-82`), uses verified hash fallbacks, and errors when no conversion/hash tool is available. On macOS Bash 3.2, names containing `İ`, `-n`, and a trailing newline matched Python under `LC_ALL=C` and `LC_ALL=C.UTF-8`.
- Registry migration updates all named rows and format metadata (`registry_format.py:35-66`) before caller mutation under `BEGIN IMMEDIATE` (`atomic_yaml.py:78-88`); stale YAML is repaired from DB state (`127-138`). `atomic_dump_yaml` is the only sanctioned registry YAML writer. Future versions are not downgraded. The migration entry point’s output/error contract is documented and implemented in `registry_format.py:17-25,69-88`.
- StallWatch computes the normalized herdr name once and passes it to its source (`stall_watch.py:229`); its unchanged test passes.
- S11’s baseline `0fc162e` exists and is an ancestor of this head. Python 3.9.6 and Bash 3.2.57 are the host versions used. The scope excludes Issue #72’s update skill.

## Verification

Commands used the required `PYTHONDONTWRITEBYTECODE=1`, `-p no:cacheprovider`, and `--basetemp` outside the validation checkout.

- Head combined review run (all requested focused and adjacent suites): **461 passed, 1 skipped** in 1295.97s. This included `test_issue71_herdr_names.py`, `test_issue66_stall_watch_sanitized_name.py`, tier 1/2/3, Issues 23/24, 50, 21, 63, 60, layout, and skill blocks.
- Base Issue #71 regression run from the temporary base snapshot: **68 failed, 2 passed** in 121.85s, matching the expected base behavior.
- Unicode/name parity probe under C and C.UTF-8: outputs matched Python.
- `git diff --check`: clean.

[VERDICT: PASS]