diff --git a/AGENTS.md b/AGENTS.md
index ffd728b..641def9 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -92,7 +92,9 @@ OMX runtime state typically lives under `.omx/`:
 - For git isolation, each agent must start on a dedicated branch via `scripts/agent-branch-start.sh "<task-or-plan>" "<agent-name>"`.
 - Do not implement changes directly on `main` or other base branches; all edits must happen on dedicated agent branches/worktrees.
 - If the current local branch already contains accidental edits, move them to an agent branch/worktree first, then continue implementation.
-- Agent completion must use `scripts/agent-branch-finish.sh` (merge into `dev`, push, delete agent branch).
+- Agent completion defaults to `scripts/codex-agent.sh`, which auto-finishes the branch (auto-commit changed files, push/create PR, attempt merge, clean branch/worktree, and pull the local base branch after merge).
+- If codex-agent auto-finish cannot complete, run `scripts/agent-branch-finish.sh --branch "<agent-branch>" --via-pr` and keep the branch open until checks/review pass.
+- If merge/rebase conflicts block auto-finish, run a conflict-resolution review pass in that sandbox branch, then rerun `agent-branch-finish.sh --via-pr` until merged.
 
 1. Explicit ownership before edits
 
diff --git a/README.md b/README.md
index 7a1c7a2..42f2c6c 100644
--- a/README.md
+++ b/README.md
@@ -238,6 +238,9 @@ Use this exact checklist to setup multi-agent safety in this repository for Code
    - For every new user message/task, repeat the same cycle:
      start isolated agent branch/worktree -> claim file locks -> implement/verify ->
      finish via PR/merge cleanup with scripts/agent-branch-finish.sh.
+   - `scripts/codex-agent.sh` now auto-runs this finish flow after Codex exits:
+     auto-commit changed files -> push/create PR -> merge attempt -> branch/worktree cleanup ->
+     pull local base branch.
 
 5) Optional: create OpenSpec planning workspace:
    bash scripts/openspec/init-plan-workspace.sh "<plan-slug>"
@@ -285,7 +288,9 @@ and asks `[y/N]` whether to update immediately (default is `N`).
 - Interactive prompt is strict (`[y/n]`) and waits for explicit answer.
 - Non-interactive setup: skips global installs by default; use `--yes-global-install` to force.
 - In already-initialized repos, `setup` / `install` / `fix` / `doctor` block writes on protected `main` by default; start an agent branch first. Use `--allow-protected-base-write` only for emergency in-place maintenance.
-- `scripts/codex-agent.sh` now auto-runs worktree prune after a Codex session; clean sandbox branches are removed automatically, dirty ones are kept.
+- `scripts/codex-agent.sh` now auto-runs finish automation after a Codex session when `origin` exists:
+  auto-commit changed files, run PR/merge cleanup, and prune merged worktrees.
+  If conflicts remain, it keeps the sandbox and prompts for a conflict-resolution review pass.
 
 ## Advanced commands
 
diff --git a/templates/AGENTS.multiagent-safety.md b/templates/AGENTS.multiagent-safety.md
index bbce4a3..a883a72 100644
--- a/templates/AGENTS.multiagent-safety.md
+++ b/templates/AGENTS.multiagent-safety.md
@@ -11,7 +11,9 @@
 - If ownership is unclear or overlaps, stop that edit, post a blocker comment, and let the leader/integrator reassign scope.
 - For git isolation, each agent must start on a dedicated branch via `scripts/agent-branch-start.sh "<task-or-plan>" "<agent-name>"`.
 - Treat the base branch (`main` or the user's current local base branch) as read-only while the agent branch is active.
-- Agent completion must use `scripts/agent-branch-finish.sh` (direct merge to base when allowed; auto PR fallback for protected bases, then cleanup after merge).
+- Agent completion defaults to `scripts/codex-agent.sh`, which now auto-finishes the branch (auto-commit changed files, push/create PR, attempt merge, clean branch/worktree, and pull the local base branch after merge).
+- If codex-agent auto-finish cannot complete, immediately run `scripts/agent-branch-finish.sh --branch "<agent-branch>" --via-pr` and keep the branch open until checks/review pass.
+- If merge/rebase conflicts block auto-finish, run a conflict-resolution review pass in that sandbox branch, then rerun `agent-branch-finish.sh --via-pr` until merged.
 - Per-message loop is mandatory: for every new user message/task, start a fresh agent branch/worktree, claim ownership locks, implement and verify, finish via PR/merge cleanup, then repeat for the next message/task.
 
 1. Explicit ownership before edits
diff --git a/templates/scripts/codex-agent.sh b/templates/scripts/codex-agent.sh
index 370d2d5..09cacf5 100755
--- a/templates/scripts/codex-agent.sh
+++ b/templates/scripts/codex-agent.sh
@@ -6,6 +6,24 @@ AGENT_NAME="${MUSAFETY_AGENT_NAME:-agent}"
 BASE_BRANCH="${MUSAFETY_BASE_BRANCH:-}"
 BASE_BRANCH_EXPLICIT=0
 CODEX_BIN="${MUSAFETY_CODEX_BIN:-codex}"
+AUTO_FINISH_RAW="${MUSAFETY_CODEX_AUTO_FINISH:-true}"
+AUTO_REVIEW_ON_CONFLICT_RAW="${MUSAFETY_CODEX_AUTO_REVIEW_ON_CONFLICT:-true}"
+
+normalize_bool() {
+  local raw="${1:-}"
+  local fallback="${2:-0}"
+  local lowered
+  lowered="$(printf '%s' "$raw" | tr '[:upper:]' '[:lower:]')"
+  case "$lowered" in
+    1|true|yes|on) printf '1' ;;
+    0|false|no|off) printf '0' ;;
+    '') printf '%s' "$fallback" ;;
+    *) printf '%s' "$fallback" ;;
+  esac
+}
+
+AUTO_FINISH="$(normalize_bool "$AUTO_FINISH_RAW" "1")"
+AUTO_REVIEW_ON_CONFLICT="$(normalize_bool "$AUTO_REVIEW_ON_CONFLICT_RAW" "1")"
 
 if [[ -n "$BASE_BRANCH" ]]; then
   BASE_BRANCH_EXPLICIT=1
@@ -30,6 +48,22 @@ while [[ $# -gt 0 ]]; do
       CODEX_BIN="${2:-$CODEX_BIN}"
       shift 2
       ;;
+    --auto-finish)
+      AUTO_FINISH=1
+      shift
+      ;;
+    --no-auto-finish)
+      AUTO_FINISH=0
+      shift
+      ;;
+    --auto-review-on-conflict)
+      AUTO_REVIEW_ON_CONFLICT=1
+      shift
+      ;;
+    --no-auto-review-on-conflict)
+      AUTO_REVIEW_ON_CONFLICT=0
+      shift
+      ;;
     --)
       shift
       break
@@ -95,6 +129,145 @@ if [[ ! -d "$worktree_path" ]]; then
   exit 1
 fi
 
+has_origin_remote() {
+  git -C "$repo_root" remote get-url origin >/dev/null 2>&1
+}
+
+worktree_has_changes() {
+  local wt="$1"
+  if ! git -C "$wt" diff --quiet -- . ":(exclude).omx/state/agent-file-locks.json"; then
+    return 0
+  fi
+  if ! git -C "$wt" diff --cached --quiet -- . ":(exclude).omx/state/agent-file-locks.json"; then
+    return 0
+  fi
+  if [[ -n "$(git -C "$wt" ls-files --others --exclude-standard)" ]]; then
+    return 0
+  fi
+  return 1
+}
+
+claim_changed_files() {
+  local wt="$1"
+  local branch="$2"
+  local lock_script="${repo_root}/scripts/agent-file-locks.py"
+
+  if [[ ! -x "$lock_script" ]]; then
+    return 0
+  fi
+
+  local changed_raw deleted_raw
+  changed_raw="$({
+    git -C "$wt" diff --name-only -- . ":(exclude).omx/state/agent-file-locks.json";
+    git -C "$wt" diff --cached --name-only -- . ":(exclude).omx/state/agent-file-locks.json";
+    git -C "$wt" ls-files --others --exclude-standard;
+  } | sed '/^$/d' | sort -u)"
+
+  if [[ -n "$changed_raw" ]]; then
+    mapfile -t changed_files < <(printf '%s\n' "$changed_raw")
+    python3 "$lock_script" claim --branch "$branch" "${changed_files[@]}" >/dev/null 2>&1 || true
+  fi
+
+  deleted_raw="$({
+    git -C "$wt" diff --name-only --diff-filter=D -- . ":(exclude).omx/state/agent-file-locks.json";
+    git -C "$wt" diff --cached --name-only --diff-filter=D -- . ":(exclude).omx/state/agent-file-locks.json";
+  } | sed '/^$/d' | sort -u)"
+
+  if [[ -n "$deleted_raw" ]]; then
+    mapfile -t deleted_files < <(printf '%s\n' "$deleted_raw")
+    python3 "$lock_script" allow-delete --branch "$branch" "${deleted_files[@]}" >/dev/null 2>&1 || true
+  fi
+}
+
+auto_commit_worktree_changes() {
+  local wt="$1"
+  local branch="$2"
+
+  if ! worktree_has_changes "$wt"; then
+    return 0
+  fi
+
+  claim_changed_files "$wt" "$branch"
+  git -C "$wt" add -A
+
+  if git -C "$wt" diff --cached --quiet -- . ":(exclude).omx/state/agent-file-locks.json"; then
+    return 0
+  fi
+
+  local default_message="Auto-finish: ${TASK_NAME}"
+  local commit_message="${MUSAFETY_CODEX_AUTO_COMMIT_MESSAGE:-$default_message}"
+
+  if ! git -C "$wt" commit -m "$commit_message" >/dev/null 2>&1; then
+    echo "[codex-agent] Auto-commit failed in sandbox. Keeping branch for manual review: $branch" >&2
+    return 1
+  fi
+
+  echo "[codex-agent] Auto-committed sandbox changes on '${branch}'."
+  return 0
+}
+
+looks_like_conflict_failure() {
+  local output="$1"
+  if grep -qiE 'preflight conflict detected|merge conflict detected|auto-sync failed while rebasing|rebase --continue|rebase --abort' <<< "$output"; then
+    return 0
+  fi
+  return 1
+}
+
+run_finish_flow() {
+  local wt="$1"
+  local branch="$2"
+  local finish_output=""
+  local -a finish_args
+
+  finish_args=(--branch "$branch")
+  if [[ "$BASE_BRANCH_EXPLICIT" -eq 1 ]]; then
+    finish_args+=(--base "$BASE_BRANCH")
+  fi
+
+  if has_origin_remote; then
+    if command -v gh >/dev/null 2>&1 || command -v "${MUSAFETY_GH_BIN:-gh}" >/dev/null 2>&1; then
+      finish_args+=(--via-pr)
+    fi
+  else
+    echo "[codex-agent] No origin remote detected; skipping auto-finish merge/PR pipeline." >&2
+    return 2
+  fi
+
+  if finish_output="$(bash "${repo_root}/scripts/agent-branch-finish.sh" "${finish_args[@]}" 2>&1)"; then
+    printf '%s\n' "$finish_output"
+    return 0
+  fi
+
+  printf '%s\n' "$finish_output" >&2
+
+  if [[ "$AUTO_REVIEW_ON_CONFLICT" -eq 1 ]] && looks_like_conflict_failure "$finish_output"; then
+    echo "[codex-agent] Auto-finish hit conflicts. Launching Codex conflict-review pass in sandbox..." >&2
+    local review_prompt
+    review_prompt="Resolve git conflicts for branch ${branch} against ${BASE_BRANCH:-base branch}, then commit the resolution in this sandbox worktree and exit."
+
+    (
+      cd "$wt"
+      set +e
+      "$CODEX_BIN" "$review_prompt"
+      review_exit="$?"
+      set -e
+      if [[ "$review_exit" -ne 0 ]]; then
+        echo "[codex-agent] Conflict-review Codex pass exited with status ${review_exit}." >&2
+      fi
+    )
+
+    if finish_output="$(bash "${repo_root}/scripts/agent-branch-finish.sh" "${finish_args[@]}" 2>&1)"; then
+      printf '%s\n' "$finish_output"
+      return 0
+    fi
+
+    printf '%s\n' "$finish_output" >&2
+  fi
+
+  return 1
+}
+
 echo "[codex-agent] Launching ${CODEX_BIN} in sandbox: $worktree_path"
 cd "$worktree_path"
 set +e
@@ -103,6 +276,34 @@ codex_exit="$?"
 set -e
 
 cd "$repo_root"
+final_exit="$codex_exit"
+auto_finish_completed=0
+
+worktree_branch="$(git -C "$worktree_path" rev-parse --abbrev-ref HEAD 2>/dev/null || true)"
+
+if [[ "$AUTO_FINISH" -eq 1 && -n "$worktree_branch" && "$worktree_branch" != "HEAD" ]]; then
+  echo "[codex-agent] Auto-finish enabled: commit -> push/PR -> merge -> cleanup." 
+  if auto_commit_worktree_changes "$worktree_path" "$worktree_branch"; then
+    if run_finish_flow "$worktree_path" "$worktree_branch"; then
+      auto_finish_completed=1
+      echo "[codex-agent] Auto-finish completed for '${worktree_branch}'."
+    else
+      finish_status="$?"
+      if [[ "$finish_status" -eq 2 ]]; then
+        echo "[codex-agent] Auto-finish skipped for '${worktree_branch}' (no mergeable remote context)." >&2
+      else
+        echo "[codex-agent] Auto-finish did not complete; keeping sandbox for manual review: $worktree_path" >&2
+        if [[ "$final_exit" -eq 0 ]]; then
+          final_exit=1
+        fi
+      fi
+    fi
+  else
+    if [[ "$final_exit" -eq 0 ]]; then
+      final_exit=1
+    fi
+  fi
+fi
 
 if [[ -x "${repo_root}/scripts/agent-worktree-prune.sh" ]]; then
   echo "[codex-agent] Session ended (exit=${codex_exit}). Running worktree cleanup..."
@@ -120,9 +321,9 @@ if [[ ! -d "$worktree_path" ]]; then
 else
   worktree_branch="$(git -C "$worktree_path" rev-parse --abbrev-ref HEAD 2>/dev/null || true)"
   echo "[codex-agent] Sandbox worktree kept: $worktree_path"
-  if [[ -n "$worktree_branch" && "$worktree_branch" != "HEAD" ]]; then
-    echo "[codex-agent] If finished, merge + clean with: bash scripts/agent-branch-finish.sh --branch \"${worktree_branch}\""
+  if [[ "$auto_finish_completed" -eq 0 && -n "$worktree_branch" && "$worktree_branch" != "HEAD" ]]; then
+    echo "[codex-agent] If finished, merge + clean with: bash scripts/agent-branch-finish.sh --branch \"${worktree_branch}\" --via-pr"
   fi
 fi
 
-exit "$codex_exit"
+exit "$final_exit"
diff --git a/test/install.test.js b/test/install.test.js
index 8197e39..40bddae 100644
--- a/test/install.test.js
+++ b/test/install.test.js
@@ -827,7 +827,10 @@ test('codex-agent keeps dirty sandbox worktrees after session exit', () => {
     },
   );
   assert.equal(launch.status, 0, launch.stderr || launch.stdout);
-  assert.match(launch.stdout, /\[agent-worktree-prune\] Skipping dirty worktree/);
+  assert.match(
+    launch.stdout,
+    /\[agent-worktree-prune\] Skipping dirty worktree|\[codex-agent\] Auto-committed sandbox changes on/,
+  );
   assert.match(launch.stdout, /\[codex-agent\] Sandbox worktree kept:/);
 
   const launchedCwd = fs.readFileSync(cwdMarker, 'utf8').trim();
@@ -835,6 +838,83 @@ test('codex-agent keeps dirty sandbox worktrees after session exit', () => {
   assert.equal(fs.existsSync(path.join(launchedCwd, 'codex-dirty.txt')), true);
 });
 
+test('codex-agent auto-finishes dirty sandbox branches via PR flow when origin is configured', () => {
+  const repoDir = initRepo();
+  seedCommit(repoDir);
+  attachOriginRemote(repoDir);
+
+  let result = runNode(['setup', '--target', repoDir, '--no-global-install'], repoDir);
+  assert.equal(result.status, 0, result.stderr || result.stdout);
+  result = runCmd('git', ['add', '.'], repoDir);
+  assert.equal(result.status, 0, result.stderr);
+  result = runCmd('git', ['commit', '-m', 'apply gx setup'], repoDir, {
+    ALLOW_COMMIT_ON_PROTECTED_BRANCH: '1',
+  });
+  assert.equal(result.status, 0, result.stderr || result.stdout);
+  result = runCmd('git', ['push', 'origin', 'dev'], repoDir);
+  assert.equal(result.status, 0, result.stderr || result.stdout);
+
+  const fakeCodexBin = fs.mkdtempSync(path.join(os.tmpdir(), 'musafety-fake-codex-autofinish-'));
+  const fakeCodexPath = path.join(fakeCodexBin, 'codex');
+  fs.writeFileSync(
+    fakeCodexPath,
+    `#!/usr/bin/env bash\n` +
+      `pwd > "${'${MUSAFETY_TEST_CODEX_CWD}'}"\n` +
+      `echo "$@" > "${'${MUSAFETY_TEST_CODEX_ARGS}'}"\n` +
+      `echo "auto-finish-change" > codex-autofinish.txt\n`,
+    'utf8',
+  );
+  fs.chmodSync(fakeCodexPath, 0o755);
+
+  const { fakePath: fakeGhPath } = createFakeGhScript(`
+if [[ "$1" == "pr" && "$2" == "create" ]]; then
+  exit 0
+fi
+if [[ "$1" == "pr" && "$2" == "view" ]]; then
+  if [[ " $* " == *" --json url "* ]]; then
+    echo "https://example.test/pr/auto-finish"
+    exit 0
+  fi
+  echo "unexpected gh pr view args: $*" >&2
+  exit 1
+fi
+if [[ "$1" == "pr" && "$2" == "merge" ]]; then
+  exit 0
+fi
+echo "unexpected gh args: $*" >&2
+exit 1
+`);
+
+  const cwdMarker = path.join(repoDir, '.codex-agent-cwd-autofinish');
+  const argsMarker = path.join(repoDir, '.codex-agent-args-autofinish');
+  const launch = runCmd(
+    'bash',
+    ['scripts/codex-agent.sh', 'autofinish-task', 'planner', 'dev', '--model', 'gpt-5.4-mini'],
+    repoDir,
+    {
+      PATH: `${fakeCodexBin}:${process.env.PATH}`,
+      MUSAFETY_TEST_CODEX_CWD: cwdMarker,
+      MUSAFETY_TEST_CODEX_ARGS: argsMarker,
+      MUSAFETY_GH_BIN: fakeGhPath,
+    },
+  );
+  assert.equal(launch.status, 0, launch.stderr || launch.stdout);
+  assert.match(launch.stdout, /\[codex-agent\] Auto-finish enabled: commit -> push\/PR -> merge -> cleanup\./);
+  assert.match(launch.stdout, /\[codex-agent\] Auto-finish completed for/);
+  assert.match(launch.stdout, /\[codex-agent\] Auto-cleaned sandbox worktree:/);
+
+  const launchedCwd = fs.readFileSync(cwdMarker, 'utf8').trim();
+  assert.equal(fs.existsSync(launchedCwd), false, 'auto-finished sandbox should be removed');
+  const launchedBranch = extractCreatedBranch(launch.stdout);
+  result = runCmd('git', ['show-ref', '--verify', '--quiet', `refs/heads/${launchedBranch}`], repoDir);
+  assert.notEqual(result.status, 0, 'auto-finished branch should be removed locally');
+  result = runCmd('git', ['ls-remote', '--heads', 'origin', launchedBranch], repoDir);
+  assert.equal(result.stdout.trim(), '', 'auto-finished branch should be removed on origin');
+
+  const launchedArgs = fs.readFileSync(argsMarker, 'utf8').trim();
+  assert.match(launchedArgs, /--model gpt-5\.4-mini/);
+});
+
 test('sync command rebases current agent branch onto latest origin/dev', () => {
   const repoDir = initRepo();
   seedCommit(repoDir);