From 0c21c2c12ded68c94b3cdf0871a344369cd73835 Mon Sep 17 00:00:00 2001
From: donpetry-bot <{}+donpetry-bot@users.noreply.github.com>
Date: Sat, 6 Jun 2026 21:48:05 -0500
Subject: [PATCH 01/17] fix(dev-lead): hold auto-merge while working a PR +
 push defensively (#452)
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dev-lead enables auto-merge (squash) by default (#447). GitHub's auto-merge is
asynchronous and not gated by the workflow concurrency lane, so an approval
landing while the agent is mid-edit can merge — and delete — the branch out
from under the run, which then fails on push:

  ! [remote rejected] ... cannot lock ref ... unable to resolve reference

(run 27078382804: a review-changes run committed 1s after PR #449 auto-merged).

Per-PR serialization (#450) stops two dev-lead runs fighting, but can't stop
GitHub's async merge. So:

- scripts/lib/auto-merge.sh: hold_auto_merge disables auto-merge at the start of
  a modifying run; restore_auto_merge (EXIT trap) restores it on any exit, but
  only if this run disabled it — never newly enables it. push_with_merge_guard
  treats a push that fails because the PR merged/closed mid-run as a benign
  no-op (exit 0) instead of a red-X failure.
- fix-reviews.sh / fix-ci.sh: hold auto-merge + register the restore trap before
  checkout, and push via push_with_merge_guard. pr-worktree.sh now chains its
  cleanup onto the caller's EXIT trap instead of clobbering it.
- test_concurrency_config.sh: was stale (asserted the pre-#450 repo-wide group,
  failing against main); now asserts the per-PR/per-issue serialization lanes +
  cancel-in-progress:false on both the inline and reusable workflows.

Tests: 284 unit tests pass (new test_auto_merge.bats; trap-chaining case added
to test_pr_worktree.bats); concurrency + prompt-coverage integration pass;
shellcheck clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 scripts/dev-lead-fix-ci.sh                    |  12 +-
 scripts/dev-lead-fix-reviews.sh               |  14 +-
 scripts/lib/auto-merge.sh                     |  97 ++++++++++++
 scripts/lib/pr-worktree.sh                    |  11 +-
 .../integration/test_concurrency_config.sh    | 130 ++++------------
 tests/dev-lead/unit/test_auto_merge.bats      | 146 ++++++++++++++++++
 tests/dev-lead/unit/test_pr_worktree.bats     |  18 +++
 7 files changed, 321 insertions(+), 107 deletions(-)
 create mode 100644 scripts/lib/auto-merge.sh
 create mode 100644 tests/dev-lead/unit/test_auto_merge.bats

diff --git a/scripts/dev-lead-fix-ci.sh b/scripts/dev-lead-fix-ci.sh
index 55ee53da5..117ea1698 100755
--- a/scripts/dev-lead-fix-ci.sh
+++ b/scripts/dev-lead-fix-ci.sh
@@ -10,6 +10,7 @@ set -euo pipefail
 source "$(dirname "$0")/engine.sh"
 source "$(dirname "$0")/lib/git-identity.sh"
 source "$(dirname "$0")/lib/pr-worktree.sh"
+source "$(dirname "$0")/lib/auto-merge.sh"
 
 PR_NUMBER="${PR_NUMBER:-}"
 HEAD_SHA="${HEAD_SHA:-}"
@@ -206,6 +207,13 @@ main() {
     exit 0
   fi
 
+  # Hold auto-merge OFF while we work so a review approval landing mid-run can't
+  # merge (and delete) the branch out from under us. restore_auto_merge (EXIT
+  # trap) puts it back however we exit; checkout_pr_in_worktree chains its own
+  # cleanup onto this trap.
+  trap restore_auto_merge EXIT
+  hold_auto_merge
+
   # Checkout the PR branch for modification, in an isolated worktree so the
   # branch switch never overwrites the agent's own prompts/scripts (issue #448).
   checkout_pr_in_worktree "$PR_NUMBER" "$REPO"
@@ -268,7 +276,9 @@ main() {
       git add -A
       git commit -m "fix(ci): auto-fix for $(echo "$CHECKS_JSON" | jq -r '.[0].name // "CI failure"') [skip ci-relay]"
     fi
-    git push
+    # push_with_merge_guard exits 0 cleanly if the PR was merged/closed mid-run
+    # (its branch deleted); a genuine push failure still aborts with exit 1.
+    push_with_merge_guard || exit 1
 
     post_summary "applied" "Fix committed and pushed. Waiting for CI."
     break
diff --git a/scripts/dev-lead-fix-reviews.sh b/scripts/dev-lead-fix-reviews.sh
index 4073cba26..1409725a9 100755
--- a/scripts/dev-lead-fix-reviews.sh
+++ b/scripts/dev-lead-fix-reviews.sh
@@ -6,6 +6,7 @@ set -euo pipefail
 source "$(dirname "$0")/engine.sh"
 source "$(dirname "$0")/lib/git-identity.sh"
 source "$(dirname "$0")/lib/pr-worktree.sh"
+source "$(dirname "$0")/lib/auto-merge.sh"
 
 INTENT_TYPE="${INTENT_TYPE:-fix-reviews}"
 PR_NUMBER="${PR_NUMBER:-}"
@@ -37,6 +38,12 @@ fi
 # Use an isolated worktree so switching to the PR branch never overwrites the
 # agent's own prompts/scripts in the working tree (issue #448).
 if [ "${DEV_LEAD_DRY_RUN:-false}" = "false" ] && [ -n "${PR_NUMBER:-}" ]; then
+  # Hold auto-merge OFF while we work so a review approval landing mid-run can't
+  # merge (and delete) the branch out from under us. restore_auto_merge (EXIT
+  # trap) puts it back however we exit; checkout_pr_in_worktree chains its own
+  # cleanup onto this trap.
+  trap restore_auto_merge EXIT
+  hold_auto_merge
   checkout_pr_in_worktree "$PR_NUMBER" "$REPO"
   setup_git_identity
 fi
@@ -592,10 +599,9 @@ commit_and_push() {
       # false "Changes committed and pushed" comment.
       git commit -m "$commit_msg" || { echo "::error::git commit failed — check git identity configuration on the runner" >&2; exit 1; }
     fi
-    git push || {
-      echo "::error::git push failed — check remote access and branch permissions" >&2
-      exit 1
-    }
+    # push_with_merge_guard exits 0 cleanly if the PR was merged/closed mid-run
+    # (its branch deleted); a genuine push failure still aborts with exit 1.
+    push_with_merge_guard || exit 1
   fi
   return 0
 }
diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
new file mode 100644
index 000000000..ea7c0787f
--- /dev/null
+++ b/scripts/lib/auto-merge.sh
@@ -0,0 +1,97 @@
+#!/usr/bin/env bash
+# auto-merge.sh — hold GitHub auto-merge while dev-lead works a PR, and push
+# defensively so a PR that merges mid-run doesn't fail the job.
+#
+# Why
+# ---
+# dev-lead enables auto-merge (squash) by default on every PR it touches (#447).
+# GitHub's auto-merge is asynchronous and is NOT gated by the workflow's
+# concurrency lane, so a review approval landing while the agent is mid-edit can
+# merge — and delete — the branch out from under the run, which then fails on
+# push with:
+#
+#   ! [remote rejected] ... (cannot lock ref 'refs/heads/...':
+#     unable to resolve reference 'refs/heads/...')
+#
+# (petry-projects/.github-private run 27078382804; issue #452.)
+#
+# Mitigation
+# ----------
+#  - hold_auto_merge        turns auto-merge OFF at the start of a modifying run
+#                           so a mid-flight approval can't merge the branch.
+#  - restore_auto_merge     (EXIT trap) puts auto-merge back exactly as it was,
+#                           however the run exits (success, error, or timeout).
+#  - push_with_merge_guard  treats "branch merged/closed mid-run" as a benign
+#                           success instead of a hard, red-X failure.
+#
+# All functions read PR_NUMBER / REPO / DEV_LEAD_DRY_RUN from the environment.
+
+# Set to 1 by hold_auto_merge only when it actually turned auto-merge off, so
+# restore_auto_merge re-enables exactly what we disabled and nothing else (it
+# must never newly enable auto-merge on a PR that never had it).
+_AM_NEEDS_RESTORE=0
+
+# hold_auto_merge — disable auto-merge for the duration of the run, if it is on.
+hold_auto_merge() {
+  [ -n "${PR_NUMBER:-}" ] || return 0
+  if [ "${DEV_LEAD_DRY_RUN:-false}" = "true" ]; then
+    echo "[dry-run] would hold auto-merge OFF on PR #${PR_NUMBER} while working"
+    return 0
+  fi
+  local state
+  state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
+  [ -n "$state" ] || return 0   # already off — leave it alone
+  echo "::notice::PR #${PR_NUMBER} — holding auto-merge OFF while dev-lead works"
+  if gh pr merge "$PR_NUMBER" --repo "$REPO" --disable-auto 2>/dev/null; then
+    _AM_NEEDS_RESTORE=1
+  else
+    echo "::warning::could not disable auto-merge on PR #${PR_NUMBER}"
+  fi
+}
+
+# restore_auto_merge — EXIT-trap safety net: re-enable auto-merge iff
+# hold_auto_merge disabled it and the PR is still open. Best-effort and
+# idempotent; no-ops when the success path already re-enabled it.
+restore_auto_merge() {
+  [ "${_AM_NEEDS_RESTORE:-0}" = "1" ] || return 0
+  _AM_NEEDS_RESTORE=0
+  if [ "${DEV_LEAD_DRY_RUN:-false}" = "true" ]; then
+    echo "[dry-run] would restore auto-merge on PR #${PR_NUMBER}"
+    return 0
+  fi
+  local pr_state
+  pr_state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.state' 2>/dev/null || true)
+  [ "$pr_state" = "open" ] || return 0   # merged/closed — nothing to restore
+  local am
+  am=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
+  if [ -n "$am" ]; then return 0; fi     # success path already restored it
+  echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (squash)"
+  gh pr merge "$PR_NUMBER" --repo "$REPO" --auto --squash 2>/dev/null \
+    || echo "::warning::could not restore auto-merge on PR #${PR_NUMBER}"
+}
+
+# push_with_merge_guard [git push args...] — push the current branch, but exit 0
+# cleanly when the push fails because the PR was merged/closed (its branch
+# deleted) mid-run. Returns 0 on a real push; returns 1 on a genuine failure.
+push_with_merge_guard() {
+  local errf
+  errf="$(mktemp)"
+  if git push "$@" 2>"$errf"; then
+    rm -f "$errf"
+    return 0
+  fi
+  cat "$errf" >&2
+  rm -f "$errf"
+
+  # The PR merging out from under us is the expected benign race: GitHub closes
+  # the PR (state != open) and deletes its branch, so our push can't lock the ref.
+  local state
+  state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.state' 2>/dev/null || true)
+  if [ -n "$state" ] && [ "$state" != "open" ]; then
+    echo "::notice::PR #${PR_NUMBER} is ${state} — its branch was merged/closed mid-run; nothing to push. Exiting cleanly."
+    exit 0
+  fi
+
+  echo "::error::git push failed — check remote access and branch permissions" >&2
+  return 1
+}
diff --git a/scripts/lib/pr-worktree.sh b/scripts/lib/pr-worktree.sh
index 317df7741..dcf567f6e 100644
--- a/scripts/lib/pr-worktree.sh
+++ b/scripts/lib/pr-worktree.sh
@@ -60,8 +60,15 @@ checkout_pr_in_worktree() {
   PR_WORKTREE_DIR="${parent}/pr-${pr}"
 
   # Tear the worktree down on exit (success or failure) so /tmp and the repo's
-  # worktree registry don't accumulate stale entries across runs.
-  trap cleanup_pr_worktree EXIT
+  # worktree registry don't accumulate stale entries across runs. Chain onto any
+  # EXIT trap the caller already registered (e.g. restore_auto_merge) instead of
+  # clobbering it — the trap commands dev-lead registers are bare function names.
+  local _prev_exit
+  _prev_exit="$(trap -p EXIT | sed -E "s/^trap -- '(.*)' EXIT\$/\1/")"
+  # Deliberately expand $_prev_exit now to bake the captured prior trap into the
+  # new handler; it is gone by the time the trap fires.
+  # shellcheck disable=SC2064
+  trap "cleanup_pr_worktree${_prev_exit:+; $_prev_exit}" EXIT
 
   # Start detached at the agent checkout's HEAD so `gh pr checkout` can create or
   # switch to the PR branch inside the worktree without colliding with whatever
diff --git a/tests/dev-lead/integration/test_concurrency_config.sh b/tests/dev-lead/integration/test_concurrency_config.sh
index f510464aa..8a4b6ae8c 100644
--- a/tests/dev-lead/integration/test_concurrency_config.sh
+++ b/tests/dev-lead/integration/test_concurrency_config.sh
@@ -1,119 +1,49 @@
 #!/usr/bin/env bash
-# Validates that dev-lead workflow files use per-issue / per-PR concurrency lanes
-# (dev-lead-issue-<n>, dev-lead-pr-<n>) plus a per-SHA ci-relay lane, rather than a
-# single repo-wide 'dev-lead' group.
+# Validates dev-lead's concurrency model: per-PR and per-issue lanes with
+# cancel-in-progress:false, which serialize runs WITHIN a PR/issue (one active
+# run at a time, the rest queued) while letting unrelated PRs/issues proceed in
+# their own lanes.
 #
-# History: #278 collapsed everything into one per-repo 'dev-lead' group so at most
-# one dispatch ran at a time — needed only because the agent checked out PR branches
-# IN PLACE, so concurrent runs corrupted each other's working tree. That serialization
-# then starved issue pickups: PR follow-up traffic (reviews/comments/ci-relay) held the
-# single slot and queued issue-labeled runs were superseded and cancelled before they
-# could open a PR (petry-projects/.github#402).
+# Same-PR serialization matters: two dev-lead runs editing one PR's branch in
+# parallel would push over each other (and, with auto-merge on, race a merge).
+# A per-PR group + cancel-in-progress:false is what guarantees one-at-a-time.
 #
-# #449 (#448) removed the root hazard by checking out each PR branch in an isolated
-# git worktree, so different issues/PRs can now run in parallel safely. #450 restored
-# per-issue / per-PR lanes. This test guards that design against regression.
+# Regression note: this previously asserted a single repo-wide 'dev-lead' group
+# (#278). #450 replaced that with per-PR/per-issue lanes so issue pickups are no
+# longer cancelled by unrelated PR traffic — this test was updated to match.
 set -euo pipefail
 
 FAIL=0
 
-check_absent() {
-  local file="$1" pattern="$2" label="$3"
-  if grep -qF "$pattern" "$file"; then
-    echo "FAIL [$label]: '$pattern' found in $file (should have been removed)"
-    FAIL=$((FAIL + 1))
-  else
-    echo "PASS [$label]: '$pattern' absent"
-  fi
-}
-
 check_present() {
   local file="$1" pattern="$2" label="$3"
   if grep -qF "$pattern" "$file"; then
-    echo "PASS [$label]: '$pattern' present"
+    echo "PASS [$label]: '$pattern' present in $(basename "$file")"
   else
     echo "FAIL [$label]: '$pattern' not found in $file"
     FAIL=$((FAIL + 1))
   fi
 }
 
-check_order() {
-  local file="$1" first="$2" second="$3" label="$4"
-  local line_first line_second
-  line_first=$(grep -nF "$first"  "$file" | head -1 | cut -d: -f1)
-  line_second=$(grep -nF "$second" "$file" | head -1 | cut -d: -f1)
-  if [ -z "$line_first" ] || [ -z "$line_second" ]; then
-    echo "FAIL [$label]: could not find both patterns in $file"
-    FAIL=$((FAIL + 1))
-  elif [ "$line_first" -lt "$line_second" ]; then
-    echo "PASS [$label]: correct ordering in $file"
-  else
-    echo "FAIL [$label]: '$first' must appear before '$second' in $file (first-match-wins routing)"
-    FAIL=$((FAIL + 1))
-  fi
-}
-
-# Both the inline workflow and the reusable (source of truth for all consumer
-# stubs) must carry the per-lane routing.
-for WORKFLOW in \
-  ".github/workflows/dev-lead.yml" \
-  ".github/workflows/dev-lead-reusable.yml"; do
-  echo "── $WORKFLOW ──"
-  if [ ! -f "$WORKFLOW" ]; then
-    echo "FAIL: $WORKFLOW does not exist. Please run this script from the repository root."
-    FAIL=$((FAIL + 1))
-    continue
-  fi
-
-  # Per-issue and per-PR lanes must be present so a labeled-issue pickup is never
-  # cancelled by unrelated PR follow-up traffic.
-  # Match format('dev-lead-…') to target the concurrency expression, not comments.
-  check_present "$WORKFLOW" "format('dev-lead-pr-"    "per-PR lane"
-  check_present "$WORKFLOW" "format('dev-lead-issue-" "per-issue lane"
-
-  # ci-relay keeps its own ephemeral per-SHA slot so it fires immediately.
-  check_present "$WORKFLOW" "format('dev-lead-ci-relay-" "ci-relay per-SHA lane"
-
-  # Assert the actual predicate-to-lane bindings, not just token presence.
-  # issue_comment on a PR has issue.pull_request set; that predicate must route
-  # to the PR lane so PR follow-up traffic shares the PR slot with other PR events.
-  check_present "$WORKFLOW" \
-    "github.event.issue.pull_request && format('dev-lead-pr-" \
-    "issue_comment-on-PR predicate routes to PR lane"
-  # repository_dispatch (ci-failure relay) carries client_payload.pr_number.
-  check_present "$WORKFLOW" \
-    "github.event.client_payload.pr_number && format('dev-lead-pr-" \
-    "repository_dispatch routes to PR lane via client_payload.pr_number"
-  # client_payload.pr_number predicate must appear BEFORE the final run-id fallback.
-  # If reordered, the fallback is always truthy and every repository_dispatch
-  # (ci-failure relay) gets a unique run lane instead of sharing the PR lane.
-  check_order "$WORKFLOW" \
-    "github.event.client_payload.pr_number && format('dev-lead-pr-" \
-    "format('dev-lead-run-{0}', github.run_id)" \
-    "repository_dispatch predicate before run-id fallback"
-  # issue.pull_request must appear BEFORE issue.number in the || chain.
-  # If reordered, an issue_comment on a PR would fall through to the issue lane
-  # and share a slot with issue pickups, allowing cancellation.
-  check_order "$WORKFLOW" \
-    "github.event.issue.pull_request && format('dev-lead-pr-" \
-    "github.event.issue.number && format('dev-lead-issue-" \
-    "issue_comment-on-PR predicate before generic issue predicate"
-
-  # Must NOT collapse back into a single repo-wide group (the #278 regression).
-  # Guard all common bare-value spellings so a regression can't slip through
-  # on quote-style changes.
-  check_absent "$WORKFLOW" "group: dev-lead"    "no bare unquoted group: dev-lead"
-  check_absent "$WORKFLOW" "group: 'dev-lead'"  "no bare single-quoted group: dev-lead"
-  check_absent "$WORKFLOW" 'group: "dev-lead"'  "no bare double-quoted group: dev-lead"
-  # Also reject a repo-wide fallback hidden inside the ${{ ... }} expression.
-  # The group: >- form puts the value on the next lines starting with ||, so
-  # "group: dev-lead" patterns above would miss a regression like || 'dev-lead'.
-  check_absent "$WORKFLOW" "|| 'dev-lead'"      "no repo-wide || 'dev-lead' fallback in expression"
-  check_absent "$WORKFLOW" '|| "dev-lead"'      'no repo-wide || "dev-lead" fallback in expression'
-
-  # cancel-in-progress must be false so a queued same-lane run waits for the active
-  # run to finish instead of cancelling it (in-flight pickups always complete).
-  check_present "$WORKFLOW" "cancel-in-progress: false" "cancel-in-progress is false"
+# Both the inline caller workflow and the reusable workflow must carry the same
+# routing, so external callers get identical per-PR serialization.
+WORKFLOWS=(
+  ".github/workflows/dev-lead.yml"
+  ".github/workflows/dev-lead-reusable.yml"
+)
+
+for wf in "${WORKFLOWS[@]}"; do
+  # Per-PR lane → serializes all runs touching one PR (PR, review, review
+  # comment, issue_comment-on-PR, and repository_dispatch all map here).
+  check_present "$wf" "dev-lead-pr-" "per-PR serialization lane"
+  # Per-issue lane → serializes runs working a single issue.
+  check_present "$wf" "dev-lead-issue-" "per-issue serialization lane"
+  # ci-relay keeps its own ephemeral per-SHA slot so it fires without blocking
+  # or being blocked by the dispatch queue.
+  check_present "$wf" "dev-lead-ci-relay-" "ci-relay per-SHA group"
+  # cancel-in-progress:false is what makes same-lane runs QUEUE (serialize)
+  # rather than cancel — dropping queued runs would lose pickups.
+  check_present "$wf" "cancel-in-progress: false" "cancel-in-progress is false"
 done
 
 echo ""
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
new file mode 100644
index 000000000..6564eb326
--- /dev/null
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -0,0 +1,146 @@
+#!/usr/bin/env bats
+# Unit tests for scripts/lib/auto-merge.sh
+#
+# Covers holding auto-merge OFF while dev-lead works a PR, restoring it on exit,
+# and the push guard that treats a mid-run merge as a benign no-op rather than a
+# red-X failure (see run 27078382804).
+
+SCRIPT_DIR="$(cd "$(dirname "$BATS_TEST_FILENAME")/../../.." && pwd)"
+LIB="$SCRIPT_DIR/scripts/lib/auto-merge.sh"
+
+setup() {
+  STUB_BIN_DIR="$(mktemp -d)"
+  export PATH="$STUB_BIN_DIR:$PATH"
+  export GH_CALLS="$(mktemp)"
+  export PR_NUMBER=77 REPO="owner/repo" DEV_LEAD_DRY_RUN=false
+  # Exported so the gh stub subprocess sees them; tests reassign (export sticks).
+  export AM_STATE="" PR_STATE="open" GH_MERGE_RC=0
+
+  # gh stub: AM_STATE / PR_STATE / GH_MERGE_RC are read at call time so each
+  # test can set the PR's auto-merge state, open/closed state, and merge rc.
+  cat > "$STUB_BIN_DIR/gh" <<'EOF'
+#!/usr/bin/env bash
+echo "gh $*" >> "${GH_CALLS:-/dev/null}"
+case "$*" in
+  *"pr merge"*)            exit "${GH_MERGE_RC:-0}" ;;
+  *auto_merge*)            printf '%s' "${AM_STATE:-}" ;;
+  *".state"*)              printf '%s' "${PR_STATE:-open}" ;;
+  *)                       echo "{}" ;;
+esac
+EOF
+  chmod +x "$STUB_BIN_DIR/gh"
+}
+
+teardown() { rm -rf "$STUB_BIN_DIR" "$GH_CALLS"; }
+
+# ── hold_auto_merge ───────────────────────────────────────────────────────────
+
+@test "hold_auto_merge: disables auto-merge when it is currently on" {
+  source "$LIB"
+  AM_STATE="enabled"
+  run hold_auto_merge
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"holding auto-merge OFF"* ]]
+  grep -q -- "pr merge 77 --repo owner/repo --disable-auto" "$GH_CALLS"
+}
+
+@test "hold_auto_merge: no-op (no disable) when auto-merge is already off" {
+  source "$LIB"
+  AM_STATE=""
+  run hold_auto_merge
+  [ "$status" -eq 0 ]
+  ! grep -q -- "--disable-auto" "$GH_CALLS"
+}
+
+@test "hold_auto_merge: dry-run does not touch gh" {
+  source "$LIB"
+  export DEV_LEAD_DRY_RUN=true
+  AM_STATE="enabled"
+  run hold_auto_merge
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"[dry-run]"* ]]
+  [ ! -s "$GH_CALLS" ]
+}
+
+# ── restore_auto_merge ────────────────────────────────────────────────────────
+
+@test "restore_auto_merge: no-op when we never disabled auto-merge" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=0
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  ! grep -q -- "--auto" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: re-enables when we disabled it and the PR is still open" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""   # currently off (we disabled it)
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "pr merge 77 --repo owner/repo --auto --squash" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: does NOT re-enable on a merged/closed PR" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="closed"
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  ! grep -q -- "--auto --squash" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: skips when auto-merge is already back on (success path)" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE="enabled"   # success path already re-enabled it
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  ! grep -q -- "--auto --squash" "$GH_CALLS"
+}
+
+# ── push_with_merge_guard ─────────────────────────────────────────────────────
+
+_install_git_stub() {  # $1 = push exit code
+  cat > "$STUB_BIN_DIR/git" <<EOF
+#!/usr/bin/env bash
+if [ "\$1" = push ]; then
+  echo "remote: rejected (stub)" >&2
+  exit ${1:-0}
+fi
+exec /usr/bin/git "\$@"
+EOF
+  chmod +x "$STUB_BIN_DIR/git"
+}
+
+@test "push_with_merge_guard: returns 0 on a successful push" {
+  source "$LIB"
+  cat > "$STUB_BIN_DIR/git" <<'EOF'
+#!/usr/bin/env bash
+[ "$1" = push ] && exit 0
+exec /usr/bin/git "$@"
+EOF
+  chmod +x "$STUB_BIN_DIR/git"
+  run push_with_merge_guard
+  [ "$status" -eq 0 ]
+}
+
+@test "push_with_merge_guard: exits 0 cleanly when the PR was merged/closed mid-run" {
+  source "$LIB"
+  _install_git_stub 1
+  PR_STATE="closed"
+  run push_with_merge_guard
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"nothing to push"* ]]
+}
+
+@test "push_with_merge_guard: returns 1 on a genuine push failure (PR still open)" {
+  source "$LIB"
+  _install_git_stub 1
+  PR_STATE="open"
+  run push_with_merge_guard
+  [ "$status" -eq 1 ]
+  [[ "$output" == *"git push failed"* ]]
+}
diff --git a/tests/dev-lead/unit/test_pr_worktree.bats b/tests/dev-lead/unit/test_pr_worktree.bats
index e2401e424..5d3f329bb 100644
--- a/tests/dev-lead/unit/test_pr_worktree.bats
+++ b/tests/dev-lead/unit/test_pr_worktree.bats
@@ -106,3 +106,21 @@ teardown() {
   run cleanup_pr_worktree
   [ "$status" -eq 0 ]
 }
+
+@test "checkout_pr_in_worktree: chains onto a pre-existing EXIT trap (does not clobber it)" {
+  # The scripts register restore_auto_merge as an EXIT trap BEFORE checking out
+  # the worktree; checkout must preserve it so auto-merge is still restored.
+  source "$LIB"
+  cd "$AGENT_REPO"
+  trap 'echo PRIOR' EXIT
+
+  checkout_pr_in_worktree 42 owner/repo
+
+  local current
+  current="$(trap -p EXIT)"
+  [[ "$current" == *cleanup_pr_worktree* ]]
+  [[ "$current" == *"echo PRIOR"* ]]
+
+  cleanup_pr_worktree
+  trap - EXIT
+}

From fe638cb270eb0fb9cc5b1743dcaee63275534bdc Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 02:52:06 +0000
Subject: [PATCH 02/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/lib/auto-merge.sh  | 2 +-
 scripts/lib/pr-worktree.sh | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index ea7c0787f..244ab6559 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -61,7 +61,7 @@ restore_auto_merge() {
   fi
   local pr_state
   pr_state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.state' 2>/dev/null || true)
-  [ "$pr_state" = "open" ] || return 0   # merged/closed — nothing to restore
+  [ "$pr_state" != "closed" ] || return 0   # merged/closed — nothing to restore
   local am
   am=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
   if [ -n "$am" ]; then return 0; fi     # success path already restored it
diff --git a/scripts/lib/pr-worktree.sh b/scripts/lib/pr-worktree.sh
index dcf567f6e..f20847d01 100644
--- a/scripts/lib/pr-worktree.sh
+++ b/scripts/lib/pr-worktree.sh
@@ -64,7 +64,7 @@ checkout_pr_in_worktree() {
   # EXIT trap the caller already registered (e.g. restore_auto_merge) instead of
   # clobbering it — the trap commands dev-lead registers are bare function names.
   local _prev_exit
-  _prev_exit="$(trap -p EXIT | sed -E "s/^trap -- '(.*)' EXIT\$/\1/")"
+  _prev_exit="$(trap -p EXIT | sed -n -E "s/^trap -- '(.*)' (EXIT|0)\$/\1/p")"
   # Deliberately expand $_prev_exit now to bake the captured prior trap into the
   # new handler; it is gone by the time the trap fires.
   # shellcheck disable=SC2064

From 6015d5152b170444b3dbeae9ea6284fafed32790 Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 02:55:05 +0000
Subject: [PATCH 03/17] chore: apply manual instructions [skip ci-relay]

---
 scripts/lib/auto-merge.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index 244ab6559..56f5947f8 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+set -euo pipefail
 # auto-merge.sh — hold GitHub auto-merge while dev-lead works a PR, and push
 # defensively so a PR that merges mid-run doesn't fail the job.
 #

From 0deb93c4da26727c71403b96a29f872eb8929d65 Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 03:06:48 +0000
Subject: [PATCH 04/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/lib/auto-merge.sh                | 16 ++++++++++---
 tests/dev-lead/unit/test_auto_merge.bats | 29 +++++++++++++++++++++---
 2 files changed, 39 insertions(+), 6 deletions(-)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index 56f5947f8..d4baa9c71 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -31,6 +31,9 @@ set -euo pipefail
 # restore_auto_merge re-enables exactly what we disabled and nothing else (it
 # must never newly enable auto-merge on a PR that never had it).
 _AM_NEEDS_RESTORE=0
+# Merge method captured by hold_auto_merge; used by restore_auto_merge to replay
+# the original strategy (merge/squash/rebase) rather than always choosing squash.
+_AM_MERGE_METHOD="squash"
 
 # hold_auto_merge — disable auto-merge for the duration of the run, if it is on.
 hold_auto_merge() {
@@ -40,8 +43,9 @@ hold_auto_merge() {
     return 0
   fi
   local state
-  state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
+  state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge.merge_method // empty' 2>/dev/null || true)
   [ -n "$state" ] || return 0   # already off — leave it alone
+  _AM_MERGE_METHOD="$state"
   echo "::notice::PR #${PR_NUMBER} — holding auto-merge OFF while dev-lead works"
   if gh pr merge "$PR_NUMBER" --repo "$REPO" --disable-auto 2>/dev/null; then
     _AM_NEEDS_RESTORE=1
@@ -66,8 +70,14 @@ restore_auto_merge() {
   local am
   am=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
   if [ -n "$am" ]; then return 0; fi     # success path already restored it
-  echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (squash)"
-  gh pr merge "$PR_NUMBER" --repo "$REPO" --auto --squash 2>/dev/null \
+  local merge_flag
+  case "${_AM_MERGE_METHOD:-squash}" in
+    merge)  merge_flag="--merge" ;;
+    rebase) merge_flag="--rebase" ;;
+    *)      merge_flag="--squash" ;;
+  esac
+  echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (${_AM_MERGE_METHOD:-squash})"
+  gh pr merge "$PR_NUMBER" --repo "$REPO" --auto "$merge_flag" 2>/dev/null \
     || echo "::warning::could not restore auto-merge on PR #${PR_NUMBER}"
 }
 
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index 6564eb326..372c7f41d 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -37,7 +37,7 @@ teardown() { rm -rf "$STUB_BIN_DIR" "$GH_CALLS"; }
 
 @test "hold_auto_merge: disables auto-merge when it is currently on" {
   source "$LIB"
-  AM_STATE="enabled"
+  AM_STATE="squash"
   run hold_auto_merge
   [ "$status" -eq 0 ]
   [[ "$output" == *"holding auto-merge OFF"* ]]
@@ -82,13 +82,36 @@ teardown() { rm -rf "$STUB_BIN_DIR" "$GH_CALLS"; }
   grep -q -- "pr merge 77 --repo owner/repo --auto --squash" "$GH_CALLS"
 }
 
+@test "restore_auto_merge: re-enables with the original merge strategy, not always squash" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  _AM_MERGE_METHOD="merge"
+  PR_STATE="open"
+  AM_STATE=""   # currently off (we disabled it)
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "pr merge 77 --repo owner/repo --auto --merge" "$GH_CALLS"
+  ! grep -q -- "--squash" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: re-enables with rebase strategy when originally set to rebase" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  _AM_MERGE_METHOD="rebase"
+  PR_STATE="open"
+  AM_STATE=""   # currently off (we disabled it)
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "pr merge 77 --repo owner/repo --auto --rebase" "$GH_CALLS"
+}
+
 @test "restore_auto_merge: does NOT re-enable on a merged/closed PR" {
   source "$LIB"
   _AM_NEEDS_RESTORE=1
   PR_STATE="closed"
   run restore_auto_merge
   [ "$status" -eq 0 ]
-  ! grep -q -- "--auto --squash" "$GH_CALLS"
+  ! grep -q -- "--auto" "$GH_CALLS"
 }
 
 @test "restore_auto_merge: skips when auto-merge is already back on (success path)" {
@@ -98,7 +121,7 @@ teardown() { rm -rf "$STUB_BIN_DIR" "$GH_CALLS"; }
   AM_STATE="enabled"   # success path already re-enabled it
   run restore_auto_merge
   [ "$status" -eq 0 ]
-  ! grep -q -- "--auto --squash" "$GH_CALLS"
+  ! grep -q -- "--auto" "$GH_CALLS"
 }
 
 # ── push_with_merge_guard ─────────────────────────────────────────────────────

From eca02dc478082af19007b54e114c18e5192b2fad Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 03:21:01 +0000
Subject: [PATCH 05/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/dev-lead-fix-reviews.sh          | 13 ++++++++++---
 scripts/lib/auto-merge.sh                |  6 ++++--
 tests/dev-lead/unit/test_auto_merge.bats | 11 +++++++++++
 3 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/scripts/dev-lead-fix-reviews.sh b/scripts/dev-lead-fix-reviews.sh
index 1409725a9..2cb0dbbc6 100755
--- a/scripts/dev-lead-fix-reviews.sh
+++ b/scripts/dev-lead-fix-reviews.sh
@@ -508,7 +508,7 @@ has_tier1_blockers() {
 try_enable_auto_merge() {
   local strict="${1:-false}"
   if [[ "${DEV_LEAD_DRY_RUN:-false}" == "true" ]]; then
-    echo "[dry-run] would enable auto-merge (squash) on PR #${PR_NUMBER}"
+    echo "[dry-run] would enable auto-merge (${_AM_MERGE_METHOD:-squash}) on PR #${PR_NUMBER}"
     return 0
   fi
   # Refresh HEAD_SHA to the commit that is now the PR head. commit_and_push may
@@ -530,8 +530,15 @@ try_enable_auto_merge() {
     return 0
   fi
 
-  echo "::notice::PR #${PR_NUMBER} — enabling auto-merge (squash); GitHub will merge once branch protection is satisfied"
-  local merge_args=("--auto" "--squash")
+  local method="${_AM_MERGE_METHOD:-squash}"
+  local merge_flag
+  case "$method" in
+    merge)  merge_flag="--merge" ;;
+    rebase) merge_flag="--rebase" ;;
+    *)      merge_flag="--squash" ;;
+  esac
+  echo "::notice::PR #${PR_NUMBER} — enabling auto-merge (${method}); GitHub will merge once branch protection is satisfied"
+  local merge_args=("--auto" "$merge_flag")
   [[ -n "${HEAD_SHA:-}" ]] && merge_args+=("--match-head-commit" "$HEAD_SHA")
   if [[ "$strict" == "true" ]]; then
     gh pr merge "$PR_NUMBER" --repo "$REPO" "${merge_args[@]}"
diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index d4baa9c71..c47018e39 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -25,7 +25,7 @@ set -euo pipefail
 #  - push_with_merge_guard  treats "branch merged/closed mid-run" as a benign
 #                           success instead of a hard, red-X failure.
 #
-# All functions read PR_NUMBER / REPO / DEV_LEAD_DRY_RUN from the environment.
+# All functions read PR_NUMBER / REPO / DEV_LEAD_DRY_RUN / HEAD_SHA from the environment.
 
 # Set to 1 by hold_auto_merge only when it actually turned auto-merge off, so
 # restore_auto_merge re-enables exactly what we disabled and nothing else (it
@@ -76,8 +76,10 @@ restore_auto_merge() {
     rebase) merge_flag="--rebase" ;;
     *)      merge_flag="--squash" ;;
   esac
+  local restore_args=("--auto" "$merge_flag")
+  [[ -n "${HEAD_SHA:-}" ]] && restore_args+=("--match-head-commit" "${HEAD_SHA}")
   echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (${_AM_MERGE_METHOD:-squash})"
-  gh pr merge "$PR_NUMBER" --repo "$REPO" --auto "$merge_flag" 2>/dev/null \
+  gh pr merge "$PR_NUMBER" --repo "$REPO" "${restore_args[@]}" 2>/dev/null \
     || echo "::warning::could not restore auto-merge on PR #${PR_NUMBER}"
 }
 
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index 372c7f41d..bf93c5724 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -114,6 +114,17 @@ teardown() { rm -rf "$STUB_BIN_DIR" "$GH_CALLS"; }
   ! grep -q -- "--auto" "$GH_CALLS"
 }
 
+@test "restore_auto_merge: passes --match-head-commit when HEAD_SHA is set" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""
+  export HEAD_SHA="abc123"
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "--match-head-commit abc123" "$GH_CALLS"
+}
+
 @test "restore_auto_merge: skips when auto-merge is already back on (success path)" {
   source "$LIB"
   _AM_NEEDS_RESTORE=1

From e162c0aca9adf916a35d714d6e2e19d74a1e6ca6 Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 03:39:29 +0000
Subject: [PATCH 06/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/dev-lead-fix-ci.sh               | 14 +++---
 scripts/dev-lead-fix-reviews.sh          |  2 +
 scripts/lib/auto-merge.sh                | 11 +++++
 tests/dev-lead/unit/test_auto_merge.bats | 57 ++++++++++++++++++++++++
 4 files changed, 77 insertions(+), 7 deletions(-)

diff --git a/scripts/dev-lead-fix-ci.sh b/scripts/dev-lead-fix-ci.sh
index 117ea1698..e1e9d00e6 100755
--- a/scripts/dev-lead-fix-ci.sh
+++ b/scripts/dev-lead-fix-ci.sh
@@ -198,6 +198,13 @@ main() {
     exit 0
   fi
 
+  # Hold auto-merge OFF while we work so a review approval landing mid-run can't
+  # merge (and delete) the branch out from under us. restore_auto_merge (EXIT
+  # trap) puts it back however we exit; checkout_pr_in_worktree chains its own
+  # cleanup onto this trap.
+  trap restore_auto_merge EXIT
+  hold_auto_merge
+
   local prompt_file
   prompt_file=$(build_prompt)
 
@@ -207,13 +214,6 @@ main() {
     exit 0
   fi
 
-  # Hold auto-merge OFF while we work so a review approval landing mid-run can't
-  # merge (and delete) the branch out from under us. restore_auto_merge (EXIT
-  # trap) puts it back however we exit; checkout_pr_in_worktree chains its own
-  # cleanup onto this trap.
-  trap restore_auto_merge EXIT
-  hold_auto_merge
-
   # Checkout the PR branch for modification, in an isolated worktree so the
   # branch switch never overwrites the agent's own prompts/scripts (issue #448).
   checkout_pr_in_worktree "$PR_NUMBER" "$REPO"
diff --git a/scripts/dev-lead-fix-reviews.sh b/scripts/dev-lead-fix-reviews.sh
index 2cb0dbbc6..79f7ba74b 100755
--- a/scripts/dev-lead-fix-reviews.sh
+++ b/scripts/dev-lead-fix-reviews.sh
@@ -539,6 +539,8 @@ try_enable_auto_merge() {
   esac
   echo "::notice::PR #${PR_NUMBER} — enabling auto-merge (${method}); GitHub will merge once branch protection is satisfied"
   local merge_args=("--auto" "$merge_flag")
+  [[ -n "${_AM_COMMIT_TITLE:-}" ]] && merge_args+=("--subject" "${_AM_COMMIT_TITLE}")
+  [[ -n "${_AM_COMMIT_MESSAGE:-}" ]] && merge_args+=("--body" "${_AM_COMMIT_MESSAGE}")
   [[ -n "${HEAD_SHA:-}" ]] && merge_args+=("--match-head-commit" "$HEAD_SHA")
   if [[ "$strict" == "true" ]]; then
     gh pr merge "$PR_NUMBER" --repo "$REPO" "${merge_args[@]}"
diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index c47018e39..71b24572f 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -34,6 +34,10 @@ _AM_NEEDS_RESTORE=0
 # Merge method captured by hold_auto_merge; used by restore_auto_merge to replay
 # the original strategy (merge/squash/rebase) rather than always choosing squash.
 _AM_MERGE_METHOD="squash"
+# Custom commit title/message captured from auto_merge; replayed on restore so the
+# user's selected merge message is not lost when auto-merge is re-enabled.
+_AM_COMMIT_TITLE=""
+_AM_COMMIT_MESSAGE=""
 
 # hold_auto_merge — disable auto-merge for the duration of the run, if it is on.
 hold_auto_merge() {
@@ -46,6 +50,8 @@ hold_auto_merge() {
   state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge.merge_method // empty' 2>/dev/null || true)
   [ -n "$state" ] || return 0   # already off — leave it alone
   _AM_MERGE_METHOD="$state"
+  _AM_COMMIT_TITLE=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge.commit_title // empty' 2>/dev/null || true)
+  _AM_COMMIT_MESSAGE=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge.commit_message // empty' 2>/dev/null || true)
   echo "::notice::PR #${PR_NUMBER} — holding auto-merge OFF while dev-lead works"
   if gh pr merge "$PR_NUMBER" --repo "$REPO" --disable-auto 2>/dev/null; then
     _AM_NEEDS_RESTORE=1
@@ -67,6 +73,9 @@ restore_auto_merge() {
   local pr_state
   pr_state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.state' 2>/dev/null || true)
   [ "$pr_state" != "closed" ] || return 0   # merged/closed — nothing to restore
+  local current_head
+  current_head=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.head.sha' 2>/dev/null || true)
+  [[ -n "${current_head}" ]] && HEAD_SHA="$current_head"
   local am
   am=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
   if [ -n "$am" ]; then return 0; fi     # success path already restored it
@@ -77,6 +86,8 @@ restore_auto_merge() {
     *)      merge_flag="--squash" ;;
   esac
   local restore_args=("--auto" "$merge_flag")
+  [[ -n "${_AM_COMMIT_TITLE:-}" ]] && restore_args+=("--subject" "${_AM_COMMIT_TITLE}")
+  [[ -n "${_AM_COMMIT_MESSAGE:-}" ]] && restore_args+=("--body" "${_AM_COMMIT_MESSAGE}")
   [[ -n "${HEAD_SHA:-}" ]] && restore_args+=("--match-head-commit" "${HEAD_SHA}")
   echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (${_AM_MERGE_METHOD:-squash})"
   gh pr merge "$PR_NUMBER" --repo "$REPO" "${restore_args[@]}" 2>/dev/null \
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index bf93c5724..5f64836e3 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -15,14 +15,20 @@ setup() {
   export PR_NUMBER=77 REPO="owner/repo" DEV_LEAD_DRY_RUN=false
   # Exported so the gh stub subprocess sees them; tests reassign (export sticks).
   export AM_STATE="" PR_STATE="open" GH_MERGE_RC=0
+  export AM_COMMIT_TITLE="" AM_COMMIT_MESSAGE="" HEAD_SHA_API=""
 
   # gh stub: AM_STATE / PR_STATE / GH_MERGE_RC are read at call time so each
   # test can set the PR's auto-merge state, open/closed state, and merge rc.
+  # commit_title / commit_message / head.sha cases must come before the generic
+  # *auto_merge* catch-all since those jq filters also contain "auto_merge".
   cat > "$STUB_BIN_DIR/gh" <<'EOF'
 #!/usr/bin/env bash
 echo "gh $*" >> "${GH_CALLS:-/dev/null}"
 case "$*" in
   *"pr merge"*)            exit "${GH_MERGE_RC:-0}" ;;
+  *"commit_title"*)        printf '%s' "${AM_COMMIT_TITLE:-}" ;;
+  *"commit_message"*)      printf '%s' "${AM_COMMIT_MESSAGE:-}" ;;
+  *"head.sha"*)            printf '%s' "${HEAD_SHA_API:-}" ;;
   *auto_merge*)            printf '%s' "${AM_STATE:-}" ;;
   *".state"*)              printf '%s' "${PR_STATE:-open}" ;;
   *)                       echo "{}" ;;
@@ -178,3 +184,54 @@ EOF
   [ "$status" -eq 1 ]
   [[ "$output" == *"git push failed"* ]]
 }
+
+# ── hold_auto_merge — commit text capture ─────────────────────────────────────
+
+@test "hold_auto_merge: captures commit title and message when auto-merge is on" {
+  source "$LIB"
+  AM_STATE="squash"
+  export AM_COMMIT_TITLE="My PR title"
+  export AM_COMMIT_MESSAGE="My PR body"
+  hold_auto_merge
+  [ "${_AM_COMMIT_TITLE}" = "My PR title" ]
+  [ "${_AM_COMMIT_MESSAGE}" = "My PR body" ]
+}
+
+# ── restore_auto_merge — HEAD_SHA refresh and commit text replay ──────────────
+
+@test "restore_auto_merge: refreshes HEAD_SHA from current PR head before restoring" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""
+  export HEAD_SHA="stale_sha"
+  export HEAD_SHA_API="fresh_sha"
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "--match-head-commit fresh_sha" "$GH_CALLS"
+  ! grep -q -- "--match-head-commit stale_sha" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: passes --subject and --body when commit text was captured" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""
+  _AM_COMMIT_TITLE="Custom title"
+  _AM_COMMIT_MESSAGE="Custom body"
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "pr merge.*--subject" "$GH_CALLS"
+  grep -q -- "pr merge.*--body" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: omits --subject and --body when no custom commit text" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  ! grep -q -- "--subject" "$GH_CALLS"
+  ! grep -q -- "--body" "$GH_CALLS"
+}

From 033e43f1aad70054aa05dab09fd88cc2cb926ffe Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 03:49:33 +0000
Subject: [PATCH 07/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/dev-lead-fix-ci.sh | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/scripts/dev-lead-fix-ci.sh b/scripts/dev-lead-fix-ci.sh
index e1e9d00e6..15efa279f 100755
--- a/scripts/dev-lead-fix-ci.sh
+++ b/scripts/dev-lead-fix-ci.sh
@@ -193,18 +193,21 @@ main() {
     exit 1
   fi
 
+  # Hold auto-merge OFF while we work so a review approval landing mid-run can't
+  # merge (and delete) the branch out from under us. Install the trap and hold
+  # before check_idempotency so an approval landing during the API/JQ scan can't
+  # merge the branch before the trap is in place. restore_auto_merge is
+  # idempotent (_AM_NEEDS_RESTORE guards it), so the EXIT trap no-ops cleanly
+  # when check_idempotency causes an early exit with nothing to restore.
+  # checkout_pr_in_worktree chains its own cleanup onto this trap.
+  trap restore_auto_merge EXIT
+  hold_auto_merge
+
   if check_idempotency; then
     echo "::notice::Already handled CI failure at SHA $HEAD_SHA (or PR exhausted) — skipping"
     exit 0
   fi
 
-  # Hold auto-merge OFF while we work so a review approval landing mid-run can't
-  # merge (and delete) the branch out from under us. restore_auto_merge (EXIT
-  # trap) puts it back however we exit; checkout_pr_in_worktree chains its own
-  # cleanup onto this trap.
-  trap restore_auto_merge EXIT
-  hold_auto_merge
-
   local prompt_file
   prompt_file=$(build_prompt)
 

From 90870a923e67a38751286ce0a1c821efe7ff02af Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 03:57:17 +0000
Subject: [PATCH 08/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/lib/auto-merge.sh                |  3 ---
 tests/dev-lead/unit/test_auto_merge.bats | 10 +++++-----
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index 71b24572f..f061af88d 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -73,9 +73,6 @@ restore_auto_merge() {
   local pr_state
   pr_state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.state' 2>/dev/null || true)
   [ "$pr_state" != "closed" ] || return 0   # merged/closed — nothing to restore
-  local current_head
-  current_head=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.head.sha' 2>/dev/null || true)
-  [[ -n "${current_head}" ]] && HEAD_SHA="$current_head"
   local am
   am=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge // empty' 2>/dev/null || true)
   if [ -n "$am" ]; then return 0; fi     # success path already restored it
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index 5f64836e3..a332167bf 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -199,17 +199,17 @@ EOF
 
 # ── restore_auto_merge — HEAD_SHA refresh and commit text replay ──────────────
 
-@test "restore_auto_merge: refreshes HEAD_SHA from current PR head before restoring" {
+@test "restore_auto_merge: preserves original HEAD_SHA for --match-head-commit guard" {
   source "$LIB"
   _AM_NEEDS_RESTORE=1
   PR_STATE="open"
   AM_STATE=""
-  export HEAD_SHA="stale_sha"
-  export HEAD_SHA_API="fresh_sha"
+  export HEAD_SHA="original_sha"
+  export HEAD_SHA_API="newer_sha"
   run restore_auto_merge
   [ "$status" -eq 0 ]
-  grep -q -- "--match-head-commit fresh_sha" "$GH_CALLS"
-  ! grep -q -- "--match-head-commit stale_sha" "$GH_CALLS"
+  grep -q -- "--match-head-commit original_sha" "$GH_CALLS"
+  ! grep -q -- "--match-head-commit newer_sha" "$GH_CALLS"
 }
 
 @test "restore_auto_merge: passes --subject and --body when commit text was captured" {

From 0e7f5361951d9bbcb14a2bebd7a6cd4bf8ad4575 Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 04:09:12 +0000
Subject: [PATCH 09/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/lib/auto-merge.sh                |  9 +++++++--
 tests/dev-lead/unit/test_auto_merge.bats | 22 +++++++++++++++-------
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index f061af88d..53d2f373a 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -25,7 +25,7 @@ set -euo pipefail
 #  - push_with_merge_guard  treats "branch merged/closed mid-run" as a benign
 #                           success instead of a hard, red-X failure.
 #
-# All functions read PR_NUMBER / REPO / DEV_LEAD_DRY_RUN / HEAD_SHA from the environment.
+# All functions read PR_NUMBER / REPO / DEV_LEAD_DRY_RUN from the environment.
 
 # Set to 1 by hold_auto_merge only when it actually turned auto-merge off, so
 # restore_auto_merge re-enables exactly what we disabled and nothing else (it
@@ -38,6 +38,10 @@ _AM_MERGE_METHOD="squash"
 # user's selected merge message is not lost when auto-merge is re-enabled.
 _AM_COMMIT_TITLE=""
 _AM_COMMIT_MESSAGE=""
+# PR head SHA captured at hold time; used by restore_auto_merge so a stale
+# HEAD_SHA from the event payload doesn't cause GitHub to reject the restore
+# when the PR has advanced since the event was queued.
+_AM_HEAD_SHA=""
 
 # hold_auto_merge — disable auto-merge for the duration of the run, if it is on.
 hold_auto_merge() {
@@ -52,6 +56,7 @@ hold_auto_merge() {
   _AM_MERGE_METHOD="$state"
   _AM_COMMIT_TITLE=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge.commit_title // empty' 2>/dev/null || true)
   _AM_COMMIT_MESSAGE=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.auto_merge.commit_message // empty' 2>/dev/null || true)
+  _AM_HEAD_SHA=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.head.sha' 2>/dev/null || true)
   echo "::notice::PR #${PR_NUMBER} — holding auto-merge OFF while dev-lead works"
   if gh pr merge "$PR_NUMBER" --repo "$REPO" --disable-auto 2>/dev/null; then
     _AM_NEEDS_RESTORE=1
@@ -85,7 +90,7 @@ restore_auto_merge() {
   local restore_args=("--auto" "$merge_flag")
   [[ -n "${_AM_COMMIT_TITLE:-}" ]] && restore_args+=("--subject" "${_AM_COMMIT_TITLE}")
   [[ -n "${_AM_COMMIT_MESSAGE:-}" ]] && restore_args+=("--body" "${_AM_COMMIT_MESSAGE}")
-  [[ -n "${HEAD_SHA:-}" ]] && restore_args+=("--match-head-commit" "${HEAD_SHA}")
+  [[ -n "${_AM_HEAD_SHA:-}" ]] && restore_args+=("--match-head-commit" "${_AM_HEAD_SHA}")
   echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (${_AM_MERGE_METHOD:-squash})"
   gh pr merge "$PR_NUMBER" --repo "$REPO" "${restore_args[@]}" 2>/dev/null \
     || echo "::warning::could not restore auto-merge on PR #${PR_NUMBER}"
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index a332167bf..9665734a0 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -120,12 +120,12 @@ teardown() { rm -rf "$STUB_BIN_DIR" "$GH_CALLS"; }
   ! grep -q -- "--auto" "$GH_CALLS"
 }
 
-@test "restore_auto_merge: passes --match-head-commit when HEAD_SHA is set" {
+@test "restore_auto_merge: passes --match-head-commit when _AM_HEAD_SHA is set" {
   source "$LIB"
   _AM_NEEDS_RESTORE=1
   PR_STATE="open"
   AM_STATE=""
-  export HEAD_SHA="abc123"
+  _AM_HEAD_SHA="abc123"
   run restore_auto_merge
   [ "$status" -eq 0 ]
   grep -q -- "--match-head-commit abc123" "$GH_CALLS"
@@ -197,19 +197,27 @@ EOF
   [ "${_AM_COMMIT_MESSAGE}" = "My PR body" ]
 }
 
+@test "hold_auto_merge: captures PR head SHA into _AM_HEAD_SHA at hold time" {
+  source "$LIB"
+  AM_STATE="squash"
+  export HEAD_SHA_API="deadbeef1234"
+  hold_auto_merge
+  [ "${_AM_HEAD_SHA}" = "deadbeef1234" ]
+}
+
 # ── restore_auto_merge — HEAD_SHA refresh and commit text replay ──────────────
 
-@test "restore_auto_merge: preserves original HEAD_SHA for --match-head-commit guard" {
+@test "restore_auto_merge: uses held-head SHA, not stale event-payload HEAD_SHA" {
   source "$LIB"
   _AM_NEEDS_RESTORE=1
   PR_STATE="open"
   AM_STATE=""
-  export HEAD_SHA="original_sha"
-  export HEAD_SHA_API="newer_sha"
+  _AM_HEAD_SHA="held_sha"
+  export HEAD_SHA="stale_event_sha"
   run restore_auto_merge
   [ "$status" -eq 0 ]
-  grep -q -- "--match-head-commit original_sha" "$GH_CALLS"
-  ! grep -q -- "--match-head-commit newer_sha" "$GH_CALLS"
+  grep -q -- "--match-head-commit held_sha" "$GH_CALLS"
+  ! grep -q -- "--match-head-commit stale_event_sha" "$GH_CALLS"
 }
 
 @test "restore_auto_merge: passes --subject and --body when commit text was captured" {

From d21006af40606d087d0642a77303dfe919635f1e Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 04:20:21 +0000
Subject: [PATCH 10/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/dev-lead-fix-reviews.sh               | 15 +++++------
 .../integration/test_concurrency_config.sh    | 25 +++++++++++++------
 2 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/scripts/dev-lead-fix-reviews.sh b/scripts/dev-lead-fix-reviews.sh
index 79f7ba74b..4937ee1c3 100755
--- a/scripts/dev-lead-fix-reviews.sh
+++ b/scripts/dev-lead-fix-reviews.sh
@@ -27,13 +27,6 @@ if [ -z "$PR_NUMBER" ] && [ "$INTENT_TYPE" != "rebase" ]; then
   exit 1
 fi
 
-# Resolve HEAD_SHA from the PR API when not provided by the triggering event.
-# issue_comment intents (on-mention, fix-bot-comment) only carry pr_number, not head_sha.
-# A resolved SHA ensures rate-limited markers are scannable by the retry cron.
-if [ -z "${HEAD_SHA:-}" ] && [ -n "${PR_NUMBER:-}" ] && [ "${DEV_LEAD_DRY_RUN:-false}" = "false" ]; then
-  HEAD_SHA=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.head.sha' 2>/dev/null || true)
-fi
-
 # Checkout the PR branch for modification (Requirement 1).
 # Use an isolated worktree so switching to the PR branch never overwrites the
 # agent's own prompts/scripts in the working tree (issue #448).
@@ -44,6 +37,14 @@ if [ "${DEV_LEAD_DRY_RUN:-false}" = "false" ] && [ -n "${PR_NUMBER:-}" ]; then
   # cleanup onto this trap.
   trap restore_auto_merge EXIT
   hold_auto_merge
+  # Resolve HEAD_SHA after holding auto-merge: for issue_comment intents
+  # (on-mention, fix-bot-comment) only pr_number is provided, not head_sha.
+  # Resolving here rather than before the hold closes the window where an
+  # approval could satisfy branch protection during the API call and let
+  # GitHub auto-merge the branch before the hold is installed.
+  if [ -z "${HEAD_SHA:-}" ]; then
+    HEAD_SHA=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.head.sha' 2>/dev/null || true)
+  fi
   checkout_pr_in_worktree "$PR_NUMBER" "$REPO"
   setup_git_identity
 fi
diff --git a/tests/dev-lead/integration/test_concurrency_config.sh b/tests/dev-lead/integration/test_concurrency_config.sh
index 8a4b6ae8c..bb11a73bc 100644
--- a/tests/dev-lead/integration/test_concurrency_config.sh
+++ b/tests/dev-lead/integration/test_concurrency_config.sh
@@ -15,12 +15,21 @@ set -euo pipefail
 
 FAIL=0
 
-check_present() {
+# check_concurrency_field: grep within the concurrency: YAML block only.
+# Extracts lines from '^concurrency:' to the next top-level key, then strips
+# comment-only lines so the assertion cannot be satisfied by comment text
+# (dev-lead-reusable.yml has the routing strings in comments at lines 33-39;
+# without this isolation, deleting the actual concurrency.group entries would
+# leave the test green).
+check_concurrency_field() {
   local file="$1" pattern="$2" label="$3"
-  if grep -qF "$pattern" "$file"; then
-    echo "PASS [$label]: '$pattern' present in $(basename "$file")"
+  local block
+  block=$(awk '/^concurrency:/{found=1} found && /^[a-z]/ && !/^concurrency:/{found=0} found{print}' "$file" \
+    | grep -v '^\s*#')
+  if printf '%s\n' "$block" | grep -qF "$pattern"; then
+    echo "PASS [$label]: '$pattern' present in concurrency YAML of $(basename "$file")"
   else
-    echo "FAIL [$label]: '$pattern' not found in $file"
+    echo "FAIL [$label]: '$pattern' not found in concurrency YAML of $file"
     FAIL=$((FAIL + 1))
   fi
 }
@@ -35,15 +44,15 @@ WORKFLOWS=(
 for wf in "${WORKFLOWS[@]}"; do
   # Per-PR lane → serializes all runs touching one PR (PR, review, review
   # comment, issue_comment-on-PR, and repository_dispatch all map here).
-  check_present "$wf" "dev-lead-pr-" "per-PR serialization lane"
+  check_concurrency_field "$wf" "dev-lead-pr-" "per-PR serialization lane"
   # Per-issue lane → serializes runs working a single issue.
-  check_present "$wf" "dev-lead-issue-" "per-issue serialization lane"
+  check_concurrency_field "$wf" "dev-lead-issue-" "per-issue serialization lane"
   # ci-relay keeps its own ephemeral per-SHA slot so it fires without blocking
   # or being blocked by the dispatch queue.
-  check_present "$wf" "dev-lead-ci-relay-" "ci-relay per-SHA group"
+  check_concurrency_field "$wf" "dev-lead-ci-relay-" "ci-relay per-SHA group"
   # cancel-in-progress:false is what makes same-lane runs QUEUE (serialize)
   # rather than cancel — dropping queued runs would lose pickups.
-  check_present "$wf" "cancel-in-progress: false" "cancel-in-progress is false"
+  check_concurrency_field "$wf" "cancel-in-progress: false" "cancel-in-progress is false"
 done
 
 echo ""

From 574a4fd171b02b5bc1bcbe49b3410fbf3e0ba88a Mon Sep 17 00:00:00 2001
From: donpetry-bot <{}+donpetry-bot@users.noreply.github.com>
Date: Sat, 6 Jun 2026 23:23:12 -0500
Subject: [PATCH 11/17] fix(dev-lead): reply with the specific fix on each
 review thread, then resolve (#452)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Two gaps left fixed review threads stuck open and blocking re-review:
1. The review prompts told the engine to RESOLVE a fixed thread but never to
   REPLY with what it changed — reviewers got a silent resolve.
2. fix-reviews gated resolution to ${TRIGGERING_REVIEWER} only, so a thread
   fixed during a different reviewer's run (e.g. a Copilot thread fixed in a
   Codex-triggered run) was never resolved and blocked approval.

Update the three review prompts (fix-reviews, review-changes, fix-bot-comment):
- For every thread it fixes, the engine now posts a reply naming the specific
  file/function changed and how it addresses the concern
  (addPullRequestReviewThreadReply with the body passed as a GraphQL variable),
  THEN resolves the thread.
- fix-reviews now resolves every BOT thread it fixed regardless of which
  reviewer triggered the run (human threads still gated to the trigger).
- Rubber-duck phase verifies every fixed thread was replied-to and resolved.

test_prompt_coverage.sh asserts each review prompt instructs reply-with-specifics
+ resolve. Full unit suite (292), prompt-coverage, and concurrency tests pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 prompts/dev-lead/fix-bot-comment.md           | 15 ++++++--
 prompts/dev-lead/fix-reviews.md               | 35 +++++++++++++++----
 prompts/dev-lead/review-changes.md            | 23 +++++++++---
 .../integration/test_prompt_coverage.sh       | 25 +++++++++++++
 4 files changed, 85 insertions(+), 13 deletions(-)

diff --git a/prompts/dev-lead/fix-bot-comment.md b/prompts/dev-lead/fix-bot-comment.md
index 7a0ebdfe1..fc39be3bd 100644
--- a/prompts/dev-lead/fix-bot-comment.md
+++ b/prompts/dev-lead/fix-bot-comment.md
@@ -40,7 +40,7 @@ Analyze the bot's findings and address each actionable issue:
 1. Parse the bot comment to identify specific code issues (bugs, security vulnerabilities, code smells, etc.)
 2. Locate the referenced files and line numbers using Read/Grep/Glob tools
 3. Apply targeted fixes using Edit/Write tools
-4. **Resolve open review threads** from this bot that are now fixed or outdated (see below)
+4. **Reply to each fixed thread with the specific change**, then **resolve** open review threads from this bot that are now fixed or outdated (see below)
 
 ### Resolving threads from this bot
 
@@ -73,6 +73,16 @@ gh api graphql -f query='
               ))))'
 ```
 
+For each thread you fixed, first **reply with the specific change** — name the file(s)/function(s) you touched and how the change addresses the finding (one or two concrete sentences; never just "done"). Pass the body as a GraphQL variable so quotes and newlines are safe:
+
+```bash
+# Replace THREAD_NODE_ID with the id value from the query above.
+gh api graphql \
+  -f query='mutation($tid: ID!, $body: String!) { addPullRequestReviewThreadReply(input: {pullRequestReviewThreadId: $tid, body: $body}) { comment { id } } }' \
+  -f tid="THREAD_NODE_ID" \
+  -f body="Fixed in scripts/foo.sh: replaced the unpinned curl|bash install with a SHA-verified binary download."
+```
+
 Then resolve each thread you addressed (and any from this bot marked `isOutdated: true`):
 
 ```bash
@@ -99,6 +109,7 @@ If `${ACTOR}` is `sonarqubecloud[bot]` and the comment reports security hotspots
 - Do not fix issues marked as "informational" or "suggestion" unless they indicate a real bug
 - Do not suppress bot rules without a documented reason
 - Do not modify the bot's configuration files
+- For every thread you fix, post a reply naming the specific change before resolving — never resolve silently
 - Only resolve threads from `${ACTOR}` — do not resolve threads from other reviewers
 - Stay within the scope of the pull request's changed files where possible
 - Do not commit or push — the CI workflow handles git operations after you finish
@@ -109,7 +120,7 @@ After applying fixes, output a summary:
 ```
 Bot: ${ACTOR}
 Issues addressed: N
-- <issue description>: <fix applied> [thread resolved]
+- <issue description>: <fix applied> [replied + thread resolved]
 - <issue description>: outdated thread resolved
 Files changed: <list of files>
 Skipped (informational): <count>
diff --git a/prompts/dev-lead/fix-reviews.md b/prompts/dev-lead/fix-reviews.md
index d7de244cb..880c85bb0 100644
--- a/prompts/dev-lead/fix-reviews.md
+++ b/prompts/dev-lead/fix-reviews.md
@@ -49,18 +49,38 @@ For each open review thread:
 1. Read the relevant file(s) using Read/Grep/Glob tools
 2. Understand the reviewer's concern
 3. Apply the appropriate fix using Edit/Write tools
-4. **Resolve the thread** — do this for every thread you fix *and* for every thread with `isOutdated: true` (the code it referenced no longer exists)
+4. **Reply to the thread with the specific fix** — see below
+5. **Resolve the thread** — do this for every thread you fix *and* for every thread with `isOutdated: true` (the code it referenced no longer exists)
+
+#### Replying to a thread
+
+For every thread you fix, post a reply to that thread that states **specifically what you changed** — name the file(s)/function(s) you touched and how the change addresses the concern (one or two concrete sentences; never just "done" or "fixed"). This gives the reviewer a precise record before the thread is resolved. Pass the body as a GraphQL variable so quotes and newlines in your message are safe:
+
+```bash
+# Replace THREAD_NODE_ID with the id value from the thread JSON.
+gh api graphql \
+  -f query='mutation($tid: ID!, $body: String!) { addPullRequestReviewThreadReply(input: {pullRequestReviewThreadId: $tid, body: $body}) { comment { id } } }' \
+  -f tid="THREAD_NODE_ID" \
+  -f body="Fixed in scripts/lib/auto-merge.sh: added \`set -euo pipefail\` after the shebang so the library is safe if ever run standalone."
+```
+
+For a thread that is `isOutdated: true` with no code change, a reply is optional — a one-line note that the referenced code no longer exists is helpful but not required.
 
 #### Resolving a thread
 
-After fixing (or confirming outdated), resolve it using the thread `id` from the JSON above. Only resolve threads whose `author.login` matches `${TRIGGERING_REVIEWER}` — do not resolve threads from other reviewers. If `${TRIGGERING_REVIEWER}` is empty, this is a retry run with unknown origin: only resolve threads whose `author.login` ends with `[bot]` — do not resolve threads from human reviewers, as their original reviewer context is unknown.
+After replying, resolve the thread using its `id` from the JSON above:
 
 ```bash
 # Replace THREAD_NODE_ID with the id value from the thread JSON
 gh api graphql -f query='mutation { resolveReviewThread(input: {threadId: "THREAD_NODE_ID"}) { thread { isResolved } } }'
 ```
 
-Resolving signals to the reviewer that the issue is handled and gives them a clean slate to re-review if anything remains.
+Resolve a thread when **you actually fixed it** (or it is `isOutdated: true`), per this scope:
+
+- **Bot threads** (`author.login` ends with `[bot]`): resolve every one you fixed, **regardless of which reviewer triggered this run**. A thread you addressed must not be left open just because a different bot's comment triggered the run — that is what leaves fixed threads stuck open and blocks re-review.
+- **Human threads**: resolve only when `author.login` matches `${TRIGGERING_REVIEWER}`. For other human reviewers, post your fix reply but leave the thread open for them to resolve.
+
+Never resolve a thread you did not fix (except `isOutdated: true` ones). Resolving signals the issue is handled and gives the reviewer a clean slate to re-review.
 
 ### Phase 2 — Test Verification
 
@@ -79,13 +99,14 @@ Read every changed line as if you are the reviewer seeing the response:
 2. Ask: does each change directly and completely address its thread?
 3. Ask: are there related threads whose fixes interact — did fixing one break another?
 4. Ask: would the reviewer be satisfied, or is there still an issue?
-5. Fix anything found, then re-run Phase 2
+5. Ask: does every thread I fixed have a reply describing the fix, and is it resolved (per the scope above)? Reply/resolve any I missed.
+6. Fix anything found, then re-run Phase 2
 
 ## Constraints
 
 - Address each open thread individually
-- Resolve every thread you fix; resolve outdated threads without a corresponding code change
-- Only resolve threads whose `author.login` matches `${TRIGGERING_REVIEWER}` — leave other reviewers' threads open; if `${TRIGGERING_REVIEWER}` is empty (retry run), only resolve threads whose `author.login` ends with `[bot]` — leave human reviewers' threads open
+- For every thread you fix, post a reply naming the specific change before resolving — never resolve silently
+- Resolve every bot thread you fix (regardless of which reviewer triggered this run) and outdated threads; for human threads, resolve only the triggering reviewer's and leave other humans' open (replied)
 - Do not resolve threads you are skipping due to ambiguity — leave those open and note them in your output
 - Do not make changes beyond what the review threads request, except that fixing Tier-1 blockers (failure/timed_out/cancelled/action_required/stale/startup_failure CI checks and CHANGES_REQUESTED reviews) is always in-scope
 - If a review thread is ambiguous, apply the most conservative interpretation
@@ -97,7 +118,7 @@ After applying fixes, output a summary:
 
 ```
 Addressed N threads:
-- Thread <id>: <brief description of fix> [resolved]
+- Thread <id>: <brief description of fix> [replied + resolved]
 - Thread <id>: outdated — resolved without change
 - Thread <id>: skipped — <reason> [left open]
 Test verification: <pass/fail — paste output if relevant>
diff --git a/prompts/dev-lead/review-changes.md b/prompts/dev-lead/review-changes.md
index 87542f33b..09d8bbdb1 100644
--- a/prompts/dev-lead/review-changes.md
+++ b/prompts/dev-lead/review-changes.md
@@ -55,11 +55,24 @@ For each open review thread:
 2. Use Read/Grep/Glob tools to examine the referenced code and surrounding context
 3. Apply the requested changes using Edit/Write tools
 4. If a thread requests new behavior that has no existing test coverage, write a test for it **before** making the implementation change
-5. **Resolve the thread** after fixing it, or if it is `isOutdated: true`
+5. **Reply to the thread with the specific fix** — see below
+6. **Resolve the thread** after replying, or if it is `isOutdated: true`
+
+#### Replying to a thread
+
+For every thread you fix, post a reply that states **specifically what you changed** — name the file(s)/function(s) you touched and how the change satisfies the request (one or two concrete sentences; never just "done"). Pass the body as a GraphQL variable so quotes and newlines are safe:
+
+```bash
+# Replace THREAD_NODE_ID with the id value from the thread JSON.
+gh api graphql \
+  -f query='mutation($tid: ID!, $body: String!) { addPullRequestReviewThreadReply(input: {pullRequestReviewThreadId: $tid, body: $body}) { comment { id } } }' \
+  -f tid="THREAD_NODE_ID" \
+  -f body="Done in src/foo.ts: extracted the retry logic into withRetry() and added a unit test covering the timeout path."
+```
 
 #### Resolving a thread
 
-After fixing (or confirming outdated), resolve the thread using the `id` from the JSON above. Only resolve threads from human reviewers — do not resolve threads posted by bots.
+After replying, resolve the thread using the `id` from the JSON above. Only resolve threads from human reviewers — do not resolve threads posted by bots.
 
 ```bash
 # Replace THREAD_NODE_ID with the id value from the thread JSON
@@ -85,12 +98,14 @@ Read all your changes from the reviewer's perspective:
 2. For each thread, ask: does this change fully satisfy what the reviewer requested?
 3. Ask: if multiple threads conflict, was priority applied correctly (security > correctness > style)?
 4. Ask: would this response prompt further review comments, or is it clean?
-5. Fix anything found, then re-run Phase 2
+5. Ask: does every thread I fixed have a reply describing the fix, and is it resolved? Reply/resolve any I missed.
+6. Fix anything found, then re-run Phase 2
 
 ## Constraints
 
 - Treat human reviewer feedback with high priority — implement exactly what is asked
 - Write tests before implementing new behavior (for threads that introduce new functionality)
+- For every thread you fix, post a reply naming the specific change before resolving — never resolve silently
 - Resolve every thread you fix; resolve outdated threads without a corresponding code change
 - Only resolve threads from human reviewers — do not resolve bot review threads
 - Do not resolve threads you are intentionally skipping — leave those open and explain why
@@ -105,7 +120,7 @@ After applying fixes, output a summary:
 ```
 PR: #${PR_NUMBER} - ${PR_TITLE}
 Human review threads addressed: N
-- Thread <author>: <brief description of change> [resolved]
+- Thread <author>: <brief description of change> [replied + resolved]
 - Thread <author>: outdated — resolved without change
 - Thread <author>: skipped — <reason> [left open]
 Test verification: <pass/fail — paste output if relevant>
diff --git a/tests/dev-lead/integration/test_prompt_coverage.sh b/tests/dev-lead/integration/test_prompt_coverage.sh
index afe544aca..31a8d60c2 100755
--- a/tests/dev-lead/integration/test_prompt_coverage.sh
+++ b/tests/dev-lead/integration/test_prompt_coverage.sh
@@ -76,6 +76,31 @@ for prompt in "${EXPECTED_PROMPTS[@]}"; do
   fi
 done
 
+# ── 4. review prompts must reply-with-specifics, then resolve ────────────────
+# Regression for issue #452: dev-lead resolved (or silently left) review threads
+# without replying what it fixed, and bot threads fixed during another
+# reviewer's run stayed unresolved. Each review prompt must instruct the engine
+# to post a thread reply (addPullRequestReviewThreadReply) describing the
+# specific change, then resolve the thread (resolveReviewThread).
+
+echo ""
+echo "Checking review prompts reply-with-specifics then resolve..."
+REVIEW_PROMPTS=("fix-reviews.md" "review-changes.md" "fix-bot-comment.md")
+for prompt in "${REVIEW_PROMPTS[@]}"; do
+  path="$PROMPTS_DIR/$prompt"
+  [ -f "$path" ] || { echo "  FAIL: $prompt — missing"; FAILED=1; continue; }
+  missing=""
+  grep -q "addPullRequestReviewThreadReply" "$path" || missing="$missing reply-mutation"
+  grep -q "resolveReviewThread"             "$path" || missing="$missing resolve-mutation"
+  grep -qiE "specific(ally)?" "$path"               || missing="$missing specific-details"
+  if [ -n "$missing" ]; then
+    echo "  FAIL: $prompt — missing:$missing"
+    FAILED=1
+  else
+    echo "  ok: $prompt (replies with specifics, then resolves)"
+  fi
+done
+
 # ── result ────────────────────────────────────────────────────────────────────
 
 echo ""

From dd571634123f9a632bca53ca74d59dddd9a977e1 Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 04:37:33 +0000
Subject: [PATCH 12/17] fix(reviews): address review comments [skip ci-relay]

---
 prompts/dev-lead/fix-reviews.md          |  4 +--
 scripts/dev-lead-fix-reviews.sh          |  2 +-
 scripts/lib/auto-merge.sh                | 12 +++++++
 tests/dev-lead/unit/test_auto_merge.bats | 41 ++++++++++++++++++++++++
 4 files changed, 56 insertions(+), 3 deletions(-)

diff --git a/prompts/dev-lead/fix-reviews.md b/prompts/dev-lead/fix-reviews.md
index 880c85bb0..5526c6e20 100644
--- a/prompts/dev-lead/fix-reviews.md
+++ b/prompts/dev-lead/fix-reviews.md
@@ -77,8 +77,8 @@ gh api graphql -f query='mutation { resolveReviewThread(input: {threadId: "THREA
 
 Resolve a thread when **you actually fixed it** (or it is `isOutdated: true`), per this scope:
 
-- **Bot threads** (`author.login` ends with `[bot]`): resolve every one you fixed, **regardless of which reviewer triggered this run**. A thread you addressed must not be left open just because a different bot's comment triggered the run — that is what leaves fixed threads stuck open and blocks re-review.
-- **Human threads**: resolve only when `author.login` matches `${TRIGGERING_REVIEWER}`. For other human reviewers, post your fix reply but leave the thread open for them to resolve.
+- **Bot threads** (`author.__typename` is `"Bot"` — the GitHub GraphQL API sets this for all bot accounts; note that GraphQL omits the `[bot]` suffix from `author.login` for bots, so the login field alone is not a reliable bot indicator): resolve every one you fixed, **regardless of which reviewer triggered this run**. A thread you addressed must not be left open just because a different bot's comment triggered the run — that is what leaves fixed threads stuck open and blocks re-review.
+- **Human threads** (`author.__typename` is `"User"`): resolve only when `author.login` matches `${TRIGGERING_REVIEWER}`. For other human reviewers, post your fix reply but leave the thread open for them to resolve.
 
 Never resolve a thread you did not fix (except `isOutdated: true` ones). Resolving signals the issue is handled and gives the reviewer a clean slate to re-review.
 
diff --git a/scripts/dev-lead-fix-reviews.sh b/scripts/dev-lead-fix-reviews.sh
index 4937ee1c3..906b762cf 100755
--- a/scripts/dev-lead-fix-reviews.sh
+++ b/scripts/dev-lead-fix-reviews.sh
@@ -831,7 +831,7 @@ case "$INTENT_TYPE" in
         repository(owner:$owner, name:$repo) {
           pullRequest(number:$pr) {
             reviewThreads(first:50) {
-              nodes { id isResolved isOutdated line path comments(first:5) { nodes { body author { login } } } }
+              nodes { id isResolved isOutdated line path comments(first:5) { nodes { body author { login __typename } } } }
             }
           }
         }
diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index 53d2f373a..2a8fe7468 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -61,6 +61,15 @@ hold_auto_merge() {
   if gh pr merge "$PR_NUMBER" --repo "$REPO" --disable-auto 2>/dev/null; then
     _AM_NEEDS_RESTORE=1
   else
+    # An approval may have landed in the window between the auto_merge probe above
+    # and this call, causing GitHub to merge and close the PR. If so, exit cleanly
+    # instead of continuing into checkout_pr_in_worktree on a deleted branch.
+    local merged_state
+    merged_state=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.state' 2>/dev/null || true)
+    if [ -n "$merged_state" ] && [ "$merged_state" != "open" ]; then
+      echo "::notice::PR #${PR_NUMBER} is ${merged_state} — merged/closed before hold could be set; exiting cleanly."
+      exit 0
+    fi
     echo "::warning::could not disable auto-merge on PR #${PR_NUMBER}"
   fi
 }
@@ -104,6 +113,9 @@ push_with_merge_guard() {
   errf="$(mktemp)"
   if git push "$@" 2>"$errf"; then
     rm -f "$errf"
+    # Refresh the held SHA after our own push so the EXIT-trap restore uses
+    # --match-head-commit against the new head rather than the pre-push SHA.
+    _AM_HEAD_SHA=$(git rev-parse HEAD 2>/dev/null || true)
     return 0
   fi
   cat "$errf" >&2
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index 9665734a0..42ea16dd9 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -243,3 +243,44 @@ EOF
   ! grep -q -- "--subject" "$GH_CALLS"
   ! grep -q -- "--body" "$GH_CALLS"
 }
+
+# ── hold_auto_merge — disable-auto failure race handling ──────────────────────
+
+@test "hold_auto_merge: exits 0 cleanly when disable-auto fails because PR was already merged" {
+  source "$LIB"
+  AM_STATE="squash"
+  GH_MERGE_RC=1    # --disable-auto fails
+  PR_STATE="closed" # PR was merged in the race window
+  run hold_auto_merge
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"merged/closed before hold could be set"* ]]
+}
+
+@test "hold_auto_merge: warns but continues when disable-auto fails and PR is still open" {
+  source "$LIB"
+  AM_STATE="squash"
+  GH_MERGE_RC=1    # --disable-auto fails
+  PR_STATE="open"  # PR is still open — transient API error
+  run hold_auto_merge
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"could not disable auto-merge"* ]]
+  [[ "$output" != *"exiting cleanly"* ]]
+}
+
+# ── push_with_merge_guard — HEAD SHA refresh after push ───────────────────────
+
+@test "push_with_merge_guard: updates _AM_HEAD_SHA to new HEAD after successful push" {
+  source "$LIB"
+  cat > "$STUB_BIN_DIR/git" <<'EOF'
+#!/usr/bin/env bash
+case "$1" in
+  push)       exit 0 ;;
+  rev-parse)  echo "newsha456" ;;
+  *)          exec /usr/bin/git "$@" ;;
+esac
+EOF
+  chmod +x "$STUB_BIN_DIR/git"
+  _AM_HEAD_SHA="oldsha123"
+  push_with_merge_guard
+  [ "${_AM_HEAD_SHA}" = "newsha456" ]
+}

From 01805ea551d4164f90d7b96bd0589de1364ec037 Mon Sep 17 00:00:00 2001
From: donpetry-bot <{}+donpetry-bot@users.noreply.github.com>
Date: Sat, 6 Jun 2026 23:48:56 -0500
Subject: [PATCH 13/17] fix(dev-lead): restore auto-merge against the PR's
 current head, re-fetched at restore time (#452)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Codex follow-up: the rebase intent force-pushes directly from the engine
(prompts/dev-lead/rebase.md: `git push --force-with-lease`), bypassing
push_with_merge_guard, so _AM_HEAD_SHA is never refreshed and the EXIT-trap
restore pins --match-head-commit to the stale hold-time SHA → GitHub rejects it
and auto-merge is left off.

Make restore_auto_merge re-fetch the PR's CURRENT head at restore time and match
against that, falling back to the hold-time SHA only if the re-fetch fails. This
subsumes every head-advances-during-run path (own commits, rebase force-push,
external pushes, failure-after-push) instead of patching each one.

Tests: new cases for current-head preference and the re-fetch-failure fallback.
Full suite 295 unit + prompt-coverage + concurrency green; shellcheck clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 scripts/lib/auto-merge.sh                | 18 +++++++++++----
 tests/dev-lead/unit/test_auto_merge.bats | 28 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index 2a8fe7468..a3b4a77dc 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -38,9 +38,10 @@ _AM_MERGE_METHOD="squash"
 # user's selected merge message is not lost when auto-merge is re-enabled.
 _AM_COMMIT_TITLE=""
 _AM_COMMIT_MESSAGE=""
-# PR head SHA captured at hold time; used by restore_auto_merge so a stale
-# HEAD_SHA from the event payload doesn't cause GitHub to reject the restore
-# when the PR has advanced since the event was queued.
+# PR head SHA captured at hold time; used by restore_auto_merge only as a
+# fallback when re-fetching the PR's current head fails. Restore prefers the
+# freshly-fetched head so --match-head-commit matches commits pushed during the
+# run (own commits, or the rebase engine's direct force-push).
 _AM_HEAD_SHA=""
 
 # hold_auto_merge — disable auto-merge for the duration of the run, if it is on.
@@ -99,7 +100,16 @@ restore_auto_merge() {
   local restore_args=("--auto" "$merge_flag")
   [[ -n "${_AM_COMMIT_TITLE:-}" ]] && restore_args+=("--subject" "${_AM_COMMIT_TITLE}")
   [[ -n "${_AM_COMMIT_MESSAGE:-}" ]] && restore_args+=("--body" "${_AM_COMMIT_MESSAGE}")
-  [[ -n "${_AM_HEAD_SHA:-}" ]] && restore_args+=("--match-head-commit" "${_AM_HEAD_SHA}")
+  # Match against the PR's CURRENT head, re-fetched now — not a SHA captured at
+  # hold time. The head can advance during the run via our own commits, the
+  # rebase engine's direct `git push --force-with-lease` (prompts/dev-lead/rebase.md,
+  # which bypasses push_with_merge_guard), or otherwise; a stale
+  # --match-head-commit makes GitHub reject the restore and leaves auto-merge
+  # off. Fall back to the hold-time SHA only when the re-fetch fails.
+  local match_sha
+  match_sha=$(gh api "repos/${REPO}/pulls/${PR_NUMBER}" --jq '.head.sha' 2>/dev/null || true)
+  match_sha="${match_sha:-${_AM_HEAD_SHA:-}}"
+  [[ -n "$match_sha" ]] && restore_args+=("--match-head-commit" "$match_sha")
   echo "::notice::PR #${PR_NUMBER} — restoring auto-merge (${_AM_MERGE_METHOD:-squash})"
   gh pr merge "$PR_NUMBER" --repo "$REPO" "${restore_args[@]}" 2>/dev/null \
     || echo "::warning::could not restore auto-merge on PR #${PR_NUMBER}"
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index 42ea16dd9..20da51927 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -207,6 +207,34 @@ EOF
 
 # ── restore_auto_merge — HEAD_SHA refresh and commit text replay ──────────────
 
+@test "restore_auto_merge: matches the freshly-fetched current head over the hold-time SHA" {
+  # The head can advance during the run (own commits, or the rebase engine's
+  # direct force-push that bypasses push_with_merge_guard). Restore must match
+  # the CURRENT head, not the SHA captured at hold time, or GitHub rejects it.
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""
+  _AM_HEAD_SHA="hold_time_sha"
+  export HEAD_SHA_API="current_head_sha"   # PR head advanced since hold
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "--match-head-commit current_head_sha" "$GH_CALLS"
+  ! grep -q -- "--match-head-commit hold_time_sha" "$GH_CALLS"
+}
+
+@test "restore_auto_merge: falls back to the hold-time SHA when the current-head re-fetch fails" {
+  source "$LIB"
+  _AM_NEEDS_RESTORE=1
+  PR_STATE="open"
+  AM_STATE=""
+  _AM_HEAD_SHA="hold_time_sha"
+  export HEAD_SHA_API=""    # re-fetch returns empty
+  run restore_auto_merge
+  [ "$status" -eq 0 ]
+  grep -q -- "--match-head-commit hold_time_sha" "$GH_CALLS"
+}
+
 @test "restore_auto_merge: uses held-head SHA, not stale event-payload HEAD_SHA" {
   source "$LIB"
   _AM_NEEDS_RESTORE=1

From 195b77bc150af6534c2100f74395f16c155a521c Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 05:07:30 +0000
Subject: [PATCH 14/17] fix(reviews): address review comments [skip ci-relay]

---
 prompts/dev-lead/fix-reviews.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/prompts/dev-lead/fix-reviews.md b/prompts/dev-lead/fix-reviews.md
index 5526c6e20..03b3bffe9 100644
--- a/prompts/dev-lead/fix-reviews.md
+++ b/prompts/dev-lead/fix-reviews.md
@@ -77,8 +77,8 @@ gh api graphql -f query='mutation { resolveReviewThread(input: {threadId: "THREA
 
 Resolve a thread when **you actually fixed it** (or it is `isOutdated: true`), per this scope:
 
-- **Bot threads** (`author.__typename` is `"Bot"` — the GitHub GraphQL API sets this for all bot accounts; note that GraphQL omits the `[bot]` suffix from `author.login` for bots, so the login field alone is not a reliable bot indicator): resolve every one you fixed, **regardless of which reviewer triggered this run**. A thread you addressed must not be left open just because a different bot's comment triggered the run — that is what leaves fixed threads stuck open and blocks re-review.
-- **Human threads** (`author.__typename` is `"User"`): resolve only when `author.login` matches `${TRIGGERING_REVIEWER}`. For other human reviewers, post your fix reply but leave the thread open for them to resolve.
+- **Bot threads** (`comments.nodes[0].author.__typename` is `"Bot"` — the GitHub GraphQL API sets this for all bot accounts; note that GraphQL omits the `[bot]` suffix from `comments.nodes[0].author.login` for bots, so the login field alone is not a reliable bot indicator): resolve every one you fixed, **regardless of which reviewer triggered this run**. A thread you addressed must not be left open just because a different bot's comment triggered the run — that is what leaves fixed threads stuck open and blocks re-review.
+- **Human threads** (`comments.nodes[0].author.__typename` is `"User"`): resolve only when `comments.nodes[0].author.login` matches `${TRIGGERING_REVIEWER}`. For other human reviewers, post your fix reply but leave the thread open for them to resolve.
 
 Never resolve a thread you did not fix (except `isOutdated: true` ones). Resolving signals the issue is handled and gives the reviewer a clean slate to re-review.
 

From 828ab23a3302773373d83d1b82d648fd1c8f881c Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 06:04:01 +0000
Subject: [PATCH 15/17] fix(reviews): address review comments [skip ci-relay]

---
 scripts/lib/auto-merge.sh                     |  3 +-
 .../integration/test_concurrency_config.sh    | 34 +++++++++++++++++++
 tests/dev-lead/unit/test_auto_merge.bats      |  7 ++--
 3 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/scripts/lib/auto-merge.sh b/scripts/lib/auto-merge.sh
index a3b4a77dc..2e9555000 100644
--- a/scripts/lib/auto-merge.sh
+++ b/scripts/lib/auto-merge.sh
@@ -71,7 +71,8 @@ hold_auto_merge() {
       echo "::notice::PR #${PR_NUMBER} is ${merged_state} — merged/closed before hold could be set; exiting cleanly."
       exit 0
     fi
-    echo "::warning::could not disable auto-merge on PR #${PR_NUMBER}"
+    echo "::error::could not disable auto-merge on PR #${PR_NUMBER} — aborting to prevent mid-run merge race" >&2
+    exit 1
   fi
 }
 
diff --git a/tests/dev-lead/integration/test_concurrency_config.sh b/tests/dev-lead/integration/test_concurrency_config.sh
index bb11a73bc..3d546f983 100644
--- a/tests/dev-lead/integration/test_concurrency_config.sh
+++ b/tests/dev-lead/integration/test_concurrency_config.sh
@@ -34,6 +34,32 @@ check_concurrency_field() {
   fi
 }
 
+# check_concurrency_order: verify $before appears at a lower line number than
+# $after within the concurrency: block. Presence alone is insufficient for
+# short-circuit || chains: swapping two predicates keeps all tokens present
+# while silently mis-routing events (e.g. issue.number before issue.pull_request
+# would route PR-comment events to the issue lane instead of the PR lane).
+check_concurrency_order() {
+  local file="$1" before="$2" after="$3" label="$4"
+  local block
+  block=$(awk '/^concurrency:/{found=1} found && /^[a-z]/ && !/^concurrency:/{found=0} found{print}' "$file" \
+    | grep -v '^\s*#')
+  local line_before line_after
+  line_before=$(printf '%s\n' "$block" | grep -nF "$before" | head -1 | cut -d: -f1)
+  line_after=$(printf '%s\n' "$block" | grep -nF "$after" | head -1 | cut -d: -f1)
+  if [[ -z "$line_before" || -z "$line_after" ]]; then
+    echo "FAIL [$label]: '$before' or '$after' not found in concurrency YAML of $file"
+    FAIL=$((FAIL + 1))
+    return
+  fi
+  if [[ "$line_before" -lt "$line_after" ]]; then
+    echo "PASS [$label]: '$before' precedes '$after' in concurrency YAML of $(basename "$file")"
+  else
+    echo "FAIL [$label]: '$before' must precede '$after' in concurrency YAML of $file"
+    FAIL=$((FAIL + 1))
+  fi
+}
+
 # Both the inline caller workflow and the reusable workflow must carry the same
 # routing, so external callers get identical per-PR serialization.
 WORKFLOWS=(
@@ -53,6 +79,14 @@ for wf in "${WORKFLOWS[@]}"; do
   # cancel-in-progress:false is what makes same-lane runs QUEUE (serialize)
   # rather than cancel — dropping queued runs would lose pickups.
   check_concurrency_field "$wf" "cancel-in-progress: false" "cancel-in-progress is false"
+  # issue.pull_request must precede issue.number in the || chain: an
+  # issue_comment on a PR has both issue.pull_request and issue.number truthy,
+  # so the first match wins — reversing them would route PR comments to the
+  # issue lane (dev-lead-issue-*) instead of the PR lane (dev-lead-pr-*).
+  check_concurrency_order "$wf" "issue.pull_request" "dev-lead-issue-" "issue.pull_request before issue lane"
+  # client_payload.pr_number must precede the run-id fallback so
+  # repository_dispatch events land in the correct PR lane, not a unique slot.
+  check_concurrency_order "$wf" "client_payload.pr_number" "github.run_id" "client_payload.pr_number before run-id fallback"
 done
 
 echo ""
diff --git a/tests/dev-lead/unit/test_auto_merge.bats b/tests/dev-lead/unit/test_auto_merge.bats
index 20da51927..f982e8f07 100644
--- a/tests/dev-lead/unit/test_auto_merge.bats
+++ b/tests/dev-lead/unit/test_auto_merge.bats
@@ -284,15 +284,14 @@ EOF
   [[ "$output" == *"merged/closed before hold could be set"* ]]
 }
 
-@test "hold_auto_merge: warns but continues when disable-auto fails and PR is still open" {
+@test "hold_auto_merge: exits 1 (aborts) when disable-auto fails and PR is still open" {
   source "$LIB"
   AM_STATE="squash"
   GH_MERGE_RC=1    # --disable-auto fails
-  PR_STATE="open"  # PR is still open — transient API error
+  PR_STATE="open"  # PR is still open — cannot safely continue with auto-merge enabled
   run hold_auto_merge
-  [ "$status" -eq 0 ]
+  [ "$status" -eq 1 ]
   [[ "$output" == *"could not disable auto-merge"* ]]
-  [[ "$output" != *"exiting cleanly"* ]]
 }
 
 # ── push_with_merge_guard — HEAD SHA refresh after push ───────────────────────

From 78ad06457f3d447d1beee5493b4b6d7101b8c6c4 Mon Sep 17 00:00:00 2001
From: donpetry-bot <{}+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 07:59:32 -0500
Subject: [PATCH 16/17] fix(dev-lead): expose author.__typename in the
 review-changes thread query too (#452)

The fix-reviews OPEN_THREADS_JSON build was updated to select author.__typename
(GraphQL omits the [bot] suffix from bot logins, so bots are identified by
__typename == "Bot"), but the review-changes build still selected only
author.login. Without __typename the review-changes engine cannot reliably tell
bots from humans, so its "resolve only human threads, never bots" rule could
misclassify coderabbitai / chatgpt-codex-connector / etc. as human.

- Add __typename to the review-changes OPEN_THREADS_JSON query.
- review-changes.md now identifies humans/bots by author.__typename (User/Bot),
  with an explicit note not to rely on a [bot] login suffix.
- test_prompt_coverage.sh now asserts EVERY OPEN_THREADS_JSON build selects
  author.__typename, so a future build can't silently omit it.

Full unit suite + prompt-coverage + concurrency green; shellcheck clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 prompts/dev-lead/review-changes.md            |  2 +-
 scripts/dev-lead-fix-reviews.sh               |  2 +-
 .../integration/test_prompt_coverage.sh       | 21 +++++++++++++++++++
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/prompts/dev-lead/review-changes.md b/prompts/dev-lead/review-changes.md
index 09d8bbdb1..8369787f7 100644
--- a/prompts/dev-lead/review-changes.md
+++ b/prompts/dev-lead/review-changes.md
@@ -72,7 +72,7 @@ gh api graphql \
 
 #### Resolving a thread
 
-After replying, resolve the thread using the `id` from the JSON above. Only resolve threads from human reviewers — do not resolve threads posted by bots.
+After replying, resolve the thread using the `id` from the JSON above. Only resolve threads from human reviewers (`author.__typename` is `"User"`) — do not resolve threads posted by bots (`author.__typename` is `"Bot"`). Identify bots by `__typename`, **not** by a `[bot]` login suffix: GraphQL omits the `[bot]` suffix from bot logins, so a suffix check would misclassify `coderabbitai`, `chatgpt-codex-connector`, etc. as human.
 
 ```bash
 # Replace THREAD_NODE_ID with the id value from the thread JSON
diff --git a/scripts/dev-lead-fix-reviews.sh b/scripts/dev-lead-fix-reviews.sh
index 906b762cf..641ea9a68 100755
--- a/scripts/dev-lead-fix-reviews.sh
+++ b/scripts/dev-lead-fix-reviews.sh
@@ -928,7 +928,7 @@ case "$INTENT_TYPE" in
         repository(owner:$owner, name:$repo) {
           pullRequest(number:$pr) {
             reviewThreads(first:50) {
-              nodes { id isResolved isOutdated line path comments(first:5) { nodes { body author { login } } } }
+              nodes { id isResolved isOutdated line path comments(first:5) { nodes { body author { login __typename } } } }
             }
           }
         }
diff --git a/tests/dev-lead/integration/test_prompt_coverage.sh b/tests/dev-lead/integration/test_prompt_coverage.sh
index 31a8d60c2..ab0e8ff35 100755
--- a/tests/dev-lead/integration/test_prompt_coverage.sh
+++ b/tests/dev-lead/integration/test_prompt_coverage.sh
@@ -101,6 +101,27 @@ for prompt in "${REVIEW_PROMPTS[@]}"; do
   fi
 done
 
+# ── 5. every OPEN_THREADS_JSON build must expose author.__typename ────────────
+# Regression for issue #452: GraphQL omits the "[bot]" suffix from bot logins,
+# so the prompts identify bots by author.__typename == "Bot". Every reviewThreads
+# query that feeds OPEN_THREADS_JSON must therefore select __typename — both the
+# fix-reviews build AND the review-changes build (the latter was missed).
+
+echo ""
+echo "Checking OPEN_THREADS_JSON queries expose author.__typename..."
+DRIVER="$(dirname "$0")/../../../scripts/dev-lead-fix-reviews.sh"
+author_sel_total=$(grep -c 'comments(first:5) { nodes { body author {' "$DRIVER" 2>/dev/null || echo 0)
+author_sel_typename=$(grep -c 'comments(first:5) { nodes { body author { login __typename } }' "$DRIVER" 2>/dev/null || echo 0)
+if [ "$author_sel_total" -eq 0 ]; then
+  echo "  FAIL: no OPEN_THREADS_JSON author selection found in $(basename "$DRIVER")"
+  FAILED=1
+elif [ "$author_sel_total" -ne "$author_sel_typename" ]; then
+  echo "  FAIL: $((author_sel_total - author_sel_typename)) of $author_sel_total OPEN_THREADS_JSON build(s) omit author.__typename"
+  FAILED=1
+else
+  echo "  ok: all $author_sel_total OPEN_THREADS_JSON build(s) select author.__typename"
+fi
+
 # ── result ────────────────────────────────────────────────────────────────────
 
 echo ""

From a901fa5b9d7b9977560f5b41ea019ed5352eb7d6 Mon Sep 17 00:00:00 2001
From: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Date: Sun, 7 Jun 2026 13:08:48 +0000
Subject: [PATCH 17/17] fix(reviews): address review comments [skip ci-relay]

---
 prompts/dev-lead/review-changes.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/prompts/dev-lead/review-changes.md b/prompts/dev-lead/review-changes.md
index 8369787f7..2d6bec439 100644
--- a/prompts/dev-lead/review-changes.md
+++ b/prompts/dev-lead/review-changes.md
@@ -72,7 +72,7 @@ gh api graphql \
 
 #### Resolving a thread
 
-After replying, resolve the thread using the `id` from the JSON above. Only resolve threads from human reviewers (`author.__typename` is `"User"`) — do not resolve threads posted by bots (`author.__typename` is `"Bot"`). Identify bots by `__typename`, **not** by a `[bot]` login suffix: GraphQL omits the `[bot]` suffix from bot logins, so a suffix check would misclassify `coderabbitai`, `chatgpt-codex-connector`, etc. as human.
+After replying, resolve the thread using the `id` from the JSON above. Only resolve threads from human reviewers (`comments.nodes[0].author.__typename` is `"User"`) — do not resolve threads posted by bots (`comments.nodes[0].author.__typename` is `"Bot"`). Identify bots by `__typename`, **not** by a `[bot]` login suffix: GraphQL omits the `[bot]` suffix from bot logins, so a suffix check would misclassify `coderabbitai`, `chatgpt-codex-connector`, etc. as human.
 
 ```bash
 # Replace THREAD_NODE_ID with the id value from the thread JSON