Require an absolute owner command after attended OpenBao login.

A relative scripts path can fail to spawn after a successful contained
OIDC session, which Warden then revokes. The wrapper now resolves the
command first; T03 records that this attempt did not write the role.

Assistant: grok
Assistant-Session: 01a0a23b-3bf0-7341-b4e5-9dc05f72573a

docs/evidence/2026-09-15-openbao-loopback-relative-path-handoff.json

@@ -0,0 +1,15 @@
+{
+  "schema": "railiance-platform.attended-login-attempt.v1",
+  "observed_at": "2026-09-15T00:11:57Z",
+  "lane_id": "openbao-platform-admin-login",
+  "plan_verdict": "founder_required",
+  "login_helper_reached": true,
+  "owner_command_started": false,
+  "warden_message": "attended command could not start; the login session was revoked",
+  "session_revoked": true,
+  "role_mutated": false,
+  "ingress_mutated": false,
+  "credential_values_emitted": false,
+  "cause": "relative owner command path failed to spawn after successful contained login",
+  "retry": "python3 scripts/openbao-attended-exec.py -- /home/worsch/railiance-platform/scripts/openbao-apply-operator-loopback-callback.sh"
+}

docs/openbao-public-listener-transition.md

@@ -37,13 +37,17 @@ silent and Warden self-revokes the attended session:
 warden plan \
   "attended OpenBao platform administration to add the exact operator-tunneled OIDC callback to auth/netkingdom/role/platform-admin" \
   --json
-warden access openbao-platform-admin-login --exec -- \
-  scripts/openbao-apply-operator-loopback-callback.sh
+python3 scripts/openbao-attended-exec.py -- \
+  /home/worsch/railiance-platform/scripts/openbao-apply-operator-loopback-callback.sh
 ```
 
 The plan must return `founder_required` and select
-`openbao-platform-admin-login`. Do not run the owner command directly with a
-persistent token.
+`openbao-platform-admin-login`. The owner command must be an absolute path:
+Warden's contained child inherits the caller's cwd, so a relative `scripts/...`
+path raises OSError, prints `attended command could not start`, and revokes a
+successful login without applying the callback. Do not run the owner command
+directly with a persistent token. The wrapper also supplies the WSL browser
+launcher when native `xdg-open` is absent.
 
 ## Guarded sequence
 

scripts/openbao-attended-exec.py

@@ -6,14 +6,32 @@ import shutil
 import sys
 
 
+def reviewed_command(args):
+    if args and args[0] == '--':
+        args = args[1:]
+    if not args:
+        raise SystemExit('A reviewed silent owner command is required')
+    command = Path(args[0]).expanduser()
+    if not command.is_absolute():
+        command = Path.cwd() / command
+    try:
+        command = command.resolve(strict=True)
+    except OSError:
+        raise SystemExit('Reviewed owner command is missing')
+    if not os.access(command, os.X_OK):
+        raise SystemExit('Reviewed owner command is not executable')
+    return [str(command), *args[1:]]
+
+
 def main():
-    args=sys.argv[1:]
-    if args and args[0]=='--': args=args[1:]
-    if not args: raise SystemExit('A reviewed silent owner command is required')
-    env=os.environ.copy()
-    if not any(shutil.which(x) for x in ('xdg-open','x-www-browser','www-browser')):
+    args = reviewed_command(sys.argv[1:])
+    env = os.environ.copy()
+    if not any(shutil.which(x) for x in ('xdg-open', 'x-www-browser', 'www-browser')):
         if not Path('/mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe').is_file():
             raise SystemExit('No supported attended browser launcher is available')
-        env['PATH']=str(Path(__file__).resolve().parent/'operator-browser')+os.pathsep+env.get('PATH','')
-    os.execvpe('warden',['warden','access','openbao-platform-admin-login','--exec','--',*args],env)
-if __name__=='__main__': main()
+        env['PATH'] = str(Path(__file__).resolve().parent / 'operator-browser') + os.pathsep + env.get('PATH', '')
+    os.execvpe('warden', ['warden', 'access', 'openbao-platform-admin-login', '--exec', '--', *args], env)
+
+
+if __name__ == '__main__':
+    main()

tests/test_openbao_operator_loopback_callback.py

@@ -50,6 +50,24 @@ def test_unexpected_live_role_refused(monkeypatch, mutation):
         m.read_role()
 
 
+def test_attended_wrapper_requires_absolute_existing_executable(tmp_path, monkeypatch):
+    import os
+    spec = importlib.util.spec_from_file_location(
+        'attended', Path(__file__).resolve().parents[1] / 'scripts/openbao-attended-exec.py')
+    wrapper = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(wrapper)
+    missing = tmp_path / 'missing.sh'
+    with pytest.raises(SystemExit, match='missing'):
+        wrapper.reviewed_command([str(missing)])
+    command = tmp_path / 'owner.sh'
+    command.write_text('#!/bin/sh\n')
+    with pytest.raises(SystemExit, match='not executable'):
+        wrapper.reviewed_command([str(command)])
+    command.chmod(0o755)
+    monkeypatch.chdir(tmp_path)
+    assert wrapper.reviewed_command(['owner.sh']) == [str(command.resolve())]
+
+
 def test_silent_entrypoint_on_command_failure(tmp_path):
     import os
     import subprocess

workplans/RPF-WP-0025-openbao-operator-only-access.md

@@ -9,7 +9,7 @@ flavor: implementation
 owner: codex
 topic_slug: railiance
 created: "2026-08-23"
-updated: "2026-09-06"
+updated: "2026-09-15"
 related:
   - RMASTER-WP-0020-T09
   - RAPP-OPENBAO-WP-0002
@@ -108,3 +108,16 @@ The role endpoint has no CAS; exclusive attended administration is still needed.
 Tests cover settings preservation, idempotence, drift, readback failure and
 unexpected roles. No live role update or ingress retraction was performed in
 this follow-up; attended loopback UI login remains the cutover gate.
+
+## Attended retry — 2026-09-15
+
+Plan selected `openbao-platform-admin-login` / `founder_required` / `oidc_login`.
+Contained login reached a helper-backed session, then
+`warden access ... --exec -- scripts/openbao-apply-operator-loopback-callback.sh`
+failed with `attended command could not start; the login session was revoked`.
+That Warden string is OSError spawning the child after successful login, not an
+OIDC or MFA refusal. Relative `scripts/...` is missing unless cwd is this repo;
+the session was revoked and private storage cleaned. No role write, Ingress
+change, or retained helper. Retry only through
+`python3 scripts/openbao-attended-exec.py --` and the absolute owner command.
+Do not reuse the failed relative-path attempt as callback evidence.