multi-agent-mux/.agents/reports/reviewer-grok-01/report-7b602181.md

# Review 7b602181 — PR #70 / Issue #66, Mac pass

PASS. Head `bb496fd` calls herdr with `sanitize_herdr_agent_name` of the session. `agent get`, `agent read`, `agent prompt`, and `agent wait` all use that name. The agent kind is still taken from `--agent` or from the original session suffix. Log lines keep the original session name. A name that is already legal is left as it is.

Reviewed only the snapshot `/var/folders/q_/68sxgw3j073dgjg8wl9s08vw0000gn/T/mam-review/loop-20261025T023502Z-d6f876/1` (`loop-20261025T023502Z-d6f876`). Head `bb496fde785133ad1dbec288aa7431766efb6eb5`, tree `15a72c9a1933c64018a2f2d9aa9707348905bb4d`. Base `0461a632eb667c7988fd33be92e9a4b36151f22a` (main, v4.10.0) is an ancestor and is the control-plane HEAD. One commit, 3 files, +150/−5. No uncommitted changes. `git diff --check` is clean. Snapshot porcelain is empty and the snapshot has no `.mam`. Control-plane porcelain is empty. No product file was edited. The source worktree `mam-wt-pr70` was not run.

The commit is `bb496fd` `fix(stall_watch): call herdr with the sanitized agent name`.

Host tools: control-plane venv Python 3.9.6, `/bin/bash` 3.2.57(1)-release. The real agent databases were not opened.

## Herdr name and kind

`HerdrSource` keeps the original string on `self.target` and stores `self.name = sanitize_herdr_agent_name(target)` (`stall_watch.py:158-165`). `agent_get`, `agent read`, and `agent prompt` pass `self.name` (`182-184`, `206`, `210-211`). `StallWatch.herdr_name` is the same function of `args.target` (`229`). `watcher.wait_once` receives that name, and `args.herdr_session` stays the server (`331`).

`build_argv` puts a non-default server on `herdr --session` and the target on `agent wait <target>` (`loop/watcher.py:131-139`). `HerdrSource._herdr` does the same split (`stall_watch.py:167-168`). The server argument is not run through the agent-name sanitizer.

`resolve_agent` still reads `--agent`, then its first hyphen piece, then `agent_of_row` on the original session name (`stall_watch.py:140-146`, `registry.py:30-49`, `base.py:326-330`). Measured on this snapshot: `resolve_agent("", "mam-wt-issue-66-very-long-creator-codex")` is `codex`. The sanitized form `mam-wt-issue-66-very-lo-d55dfa83` does not end in `-codex`, and `resolve_agent` of that string with an empty `--agent` is `None`. `resolve_agent("claude", <39-character name>)` is `claude`. `resolve_agent("claude-code", ...)` is `claude`. The long-name test passes `--agent ""` and still nudges, which is the codex input-box path (`test_issue66_stall_watch_sanitized_name.py:111-127`).

No remaining herdr agent-name argument in `stall_watch.py` uses `self.target` or `args.target`. Those strings appear in the log lines (`373`, `397`, `406`). Pane calls use the pane id (`186-193`).

`_notify` publishes `progress` with the detail it is given (`237-244`). Idle publishes `stalled:idle` (`408`). Blocked publishes `stalled:blocked` plus the dialog line (`374`). Those details contain the stall reason. The original session name is in the matching log line (`agent <original> idle for`, `agent <original> is blocked`). The tests lock both (`79-85`, `101-106`).

## Sanitizer

`sanitize_herdr_agent_name` (`lib_py/agents/sanitize.py:4-30`) lowercases, replaces characters outside `[a-z0-9_-]` with `-`, prefixes `x-` when the result does not start with a letter, and when the result is longer than 32 characters keeps 23 characters, a hyphen, and 8 hex digits of SHA-1.

The function `lib.sh` runs is the definition at `lib.sh:293-316` (an earlier copy at `36-61` is replaced when the file is sourced; every call site is below 316). It was executed on its own, without sourcing `lib.sh`. On this Mac, with `shasum` present, it returned the same strings as the Python function:

| input | result |
| --- | --- |
| `creator-claude-fix-issue-99-long-branch` (39) | `creator-claude-fix-issu-e6fc18ae` |
| `Creator-Claude-T` | `creator-claude-t` |
| `creator-claude-t` | `creator-claude-t` |
| `mam-wt-issue-66-very-long-creator-codex` | `mam-wt-issue-66-very-lo-d55dfa83` |
| empty | `agent` |
| `1abc` | `x-1abc` |
| `A B` | `a-b` |
| 33 `x` | `xxxxxxxxxxxxxxxxxxxxxxx-60bbb3c8` |
| `planner-agy` | `planner-agy` |

The earlier shell copy produced the same three long, codex, and `1abc` results. Python 3.9.6 imports `stall_watch`. The new code adds no `match` statement and no evaluated `X | Y` annotation. The module already has `from __future__ import annotations`.

## Mock

`strict_agent_names` is off unless a test sets it. `_match_agent` then keeps the previous comparison (`conftest.py:470-476`). With the flag set, the mock answers only an exact registered name. `agent get` and `agent read` then print `agent_not_found` JSON (`1057-1062`, `1152-1158`). `agent wait` and `agent prompt` already did (`1089-1096`, `1187-1194`). Existing tests that leave the flag unset keep the old not-found text on get and read.

## Tests

`test_the_names_change_and_the_strict_mock_answers_only_the_sanitized_one` registers the sanitized name and checks that get, read, wait, and prompt reject the original name with `agent_not_found` and accept the sanitized name (`51-65`).

`test_an_idle_agent_is_nudged_through_the_sanitized_name` covers the 39-character name, `Creator-Claude-T`, and `creator-claude-t`. Every get, read, prompt, and wait uses the sanitized name, one nudge is sent, the progress detail is `stalled:idle`, and the log contains `agent <original> idle for` (`68-85`).

`test_a_blocked_agent_is_reported_with_the_original_name` uses the sanitized name on the herdr calls, sends no prompt, publishes `stalled:blocked` plus the dialog line, and logs `agent <original> is blocked` (`90-106`).

`test_the_kind_of_a_long_name_comes_from_its_original_suffix` passes an empty `--agent`. The sanitized name does not end in `-codex`. The watcher still nudges and every herdr call uses the sanitized name (`111-127`).

## Results

Pytest used the control-plane venv, `PYTHONDONTWRITEBYTECODE=1`, `-p no:cacheprovider`, and `--basetemp` `/tmp/mam7b6-7b602181-pytest` (head) and `/tmp/mam7b6-7b602181-base-pytest` (base). Neither path contains `mam-review` or `shim`. Inherited `HERDR_*`, `MAM_*`, `MQTT_*`, `SKS_*`, `DELEGATE_JOB_LOGS_DIR`, `HOME_DIR`, `CLAUDE_*`, `CODEX_HOME`, `PYTHONPATH`, `WORKSPACE_ROOT`, `MAM_ENV_FILE`, `MAM_JOBS_DIR`, `AGENT_SESSIONS_YAML`, the four `XDG_*` homes, and `AGENT_PYTHON_BIN` were dropped.

Head, cwd the snapshot: `tests/test_issue66_stall_watch_sanitized_name.py`, `test_issue30_stall_watch.py`, `test_issue30_stall_watch_stop.py`. **66 passed, 1 skipped** in 356.72 s. Exit 0. The log closed at 2026-10-25 12:31:50. The skip is `test_s6_the_heartbeat_timer_is_not_a_background_child`, marked for Linux because it reads `/proc` (`test_issue30_stall_watch.py:39-40`, `340-341`). That test is outside this delta. The seven Issue #66 tests passed inside the 66.

Base, this turn: a throwaway `git clone --shared` checked out at `0461a632eb667c7988fd33be92e9a4b36151f22a`, with only `tests/test_issue66_stall_watch_sanitized_name.py` copied from head. Base `stall_watch.py` has no `sanitize_herdr` use. **6 failed, 1 passed** in 37.05 s. Exit 1. The pass is `test_an_idle_agent_is_nudged_through_the_sanitized_name[creator-claude-t]`, the name that needs no conversion. The six failures are the long name, the uppercase name, and the long codex name. On that tree get, read, and wait are invoked with `creator-claude-fix-issue-99-long-branch` and `Creator-Claude-T`. The snapshot was not checked out. Snapshot porcelain stayed empty.

## Issue #17 timing failure

`tests/test_issue17_item4_decisions.py::test_c_finalize_ends_with_an_unreaped_wrapper[broker_unavailable-3-0]` is outside this diff. The test sends `SIGTERM` to a delegate wrapper during finalize and expects exit `-15` within 4.5 seconds, an empty call log, and an unchanged job record (`583-601`). The diff names only `stall_watch.py`, `tests/conftest.py`, and the new Issue #66 test. It does not touch the wrapper, `finalize_unfinished`, or that test. A miss on that timing assertion is a cleanup race in the wrapper test, separate from the herdr agent name.

## Blocking defects

None.

## Non-blocking

- `lib.sh` contains two copies of `_sanitize_herdr_agent_name` (`36-61` and `293-316`). Sourcing the file uses the second. On this host, with `shasum` present, both copies matched Python for the names checked above. The first copy's missing-hasher path truncates to 32 characters with no hash. This commit does not change `lib.sh`.
- Progress details stay `stalled:idle` and `stalled:blocked <dialog>`. They carry the stall reason. The original session name is on the log line beside that notice.

## Host check

No process has a first command token of `opencode` or a path ending in `/opencode`. `lsof` on `~/.local/share/opencode/opencode.db` exited 1. That database was not opened. Its mtime is 1792641027 and its size is 36712448. `opencode.log` is absent. `~/.config/opencode/service.json` mtime is 1792246838 and its size is 64. `~/.local/state/opencode/service.json` is absent. The herdr config mtime is 1784456394. `~/.local/state/mam` mtime is 1792846843. `~/.local/state/mam/id-order` is a directory, mtime 1792846886. These stats match the check taken before the suite.

Five herdr processes were running immediately before the suite. After the suite log closed at 2026-10-25 12:31:50, the 12:31:59 check still found five. One pid from the before-set was gone. The replacement is `/opt/homebrew/bin/herdr` with `--session multi-agent-mux`, elapsed time about 15 seconds at 12:31:59, so it started near 12:31:44, during the last seconds of the suite. No herdr command line contained the review basetemp, the snapshot path, or `d6f876`. This review did not start or stop a herdr server.

After this report file was written, the same check was repeated at 2026-10-25 12:33:25. Snapshot porcelain is empty and the snapshot has no `.mam`. Control-plane porcelain is empty at `0461a632eb667c7988fd33be92e9a4b36151f22a`. No process has a first command token of `opencode` or a path ending in `/opencode`, and `lsof` still reports no database holder. The database mtime is still 1792641027 and its size is still 36712448. `opencode.log` is still absent. The config service file mtime is still 1792246838. The state service file is still absent. The herdr config mtime is still 1784456394. `~/.local/state/mam` mtime is still 1792846843, and `id-order` is still the same directory (mtime 1792846886). Five herdr processes were present. The pid set differs from the 12:31:59 set by one homebrew herdr process whose arguments include `--session multi-agent-mux`; its elapsed time was about 41 seconds, so that process had turned over again. No herdr command line contained the review basetemp, the snapshot path, or `d6f876`. This review did not start or stop it.

[VERDICT: PASS]