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multi-agent-mux/tests/test_issue5_phase2b_autocomplete.py
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GodopuandClaude Opus 5 01b465f50c fix(issue-5): bind the auto-completion decision atomically to its attempt
Two findings from round 2, both reproduced before being accepted.

R2 -- attribution was compared before the terminal write and nothing tied the
two together. A job could complete, be re-dispatched and claimed again in that
window, and evidence from the first attempt then satisfied a status check and
finished the second one. Reproduced with real transitions: committed, with the
registry already on iteration 2.

This corrects my own earlier reasoning, and I want to be plain about it. Last
round I argued that the attempt guard could live entirely in the evidence layer
because that is where attempt identity lives. That holds for comparing evidence
to a dispatch, and it does not hold for atomicity: a precondition can only be
atomic with the commit if the transaction can read it under its own lock. So the
identity now lives in the record.

It is an opaque dispatch token, not the iteration counter. That distinction is
the part of the earlier rebuttal that still stands: iteration already means the
loop round, and comparing a dispatch attempt against it produces a guard that is
vacuous when they agree and wrong when they diverge. A token has no competing
meaning. It is minted when an attempt begins -- claim and redispatch -- and the
gate passes the token it decided against, so any intervening re-dispatch refuses
the commit.

R4 -- the intent identity was being emitted but nothing consumed it. A replayed
notification is re-published with a fresh wire sequence, so the monotonic guard
cannot recognise it; to that guard a retry looks new. The subscriber now
deduplicates on the stable intent identity, leaving the sequence guard as the
rule for ordinary events. Across a restart the disk fallback resolves terminal
status and a duplicate terminal is refused as an idempotent ack, so a replay
after restart cannot double-apply either.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UrDNJkHmm18uu7n7JwV5Qd
2026-09-06 23:21:11 +09:00

957 lines
42 KiB
Python

#!/usr/bin/env python3
"""Issue #5 Phase 2b — flag-gated auto-completion.
Characterize first, as in 2a: the interesting property here is what the system
*refuses* to do, so the refusals are pinned before anything is added that could
weaken them.
Sections
1. X-01..X-05 the fail-closed preconditions as they stand today.
2. finalize the completion manifest: written by the agent, re-derived here.
3. autocomplete the gate, and everything that must stop it.
4. notifier durable pending notification and restart recovery.
5. flags default off, evidence-backed allowlist, per-job opt-in.
"""
from __future__ import annotations
import hashlib
import json
import os
import subprocess
import sys
from pathlib import Path
import pytest
REPO_ROOT = Path(__file__).resolve().parent.parent
SKILLS = REPO_ROOT / ".agents" / "skills"
WATCHER_FIXTURES = REPO_ROOT / "tests" / "fixtures" / "issue_5" / "watcher"
def _reg(tmp_path) -> str:
d = tmp_path / ".mam" / "jobs"
d.mkdir(parents=True, exist_ok=True)
return str(d)
def _make_job(registry_dir, **over):
from lib_py.delegation import registry
return registry.register_job(over.pop("prompt", "p"), registry_dir=registry_dir, **over)
def _load(registry_dir, job_id):
from lib_py.delegation import mqtt_common
return mqtt_common.load_job(job_id, registry_dir)
def _fingerprint(path: Path) -> dict:
out = {}
for p in sorted(Path(path).rglob("*")):
if p.is_file():
out[str(p.relative_to(path))] = hashlib.sha256(p.read_bytes()).hexdigest()
return out
def _scenario(name="finalized_candidate"):
return json.loads((WATCHER_FIXTURES / (name + ".json")).read_text(encoding="utf-8"))
@pytest.fixture(autouse=True)
def _default_flags(monkeypatch):
"""Auto-completion is off unless a test turns it on. That is the product
default too, and every test that does not opt in is therefore also a check
that the default really is off."""
monkeypatch.delenv("MAM_AUTO_COMPLETE", raising=False)
monkeypatch.delenv("MAM_AUTO_COMPLETE_BACKENDS", raising=False)
monkeypatch.setenv("MAM_ENGINE_CAS", "1")
# ==============================================================================
# 1. X-01..X-05 — the fail-closed preconditions, before anything is added
# ==============================================================================
def test_x01_a_job_without_a_manifest_is_never_approved():
"""The property that makes unsupported agents safe without any new branch."""
import copy
from lib_py.loop import policy
scenario = _scenario()
assert policy.decide(scenario).decision == "candidate_approved"
stripped = copy.deepcopy(scenario)
for item in stripped["timeline"]:
(item.get("payload") or {}).pop("report_manifest", None)
stripped["filesystem"]["manifest_committed"] = False
decision = policy.decide(stripped)
assert decision.decision == "hold" and "manifest" in decision.reason
def test_x02_no_production_code_writes_a_completion_manifest_yet():
"""Pins the starting point: the protocol is entirely new in phase 2b."""
hits = []
for path in sorted((SKILLS / "lib_py").rglob("*.py")):
if path.name in ("finalize.py", "autocomplete.py"):
continue
text = path.read_text(encoding="utf-8")
if "report-manifest" in text:
hits.append(path.name)
assert not hits, "manifest writers already exist: {}".format(hits)
def test_x03_the_record_carries_iteration_not_an_attempt_id(mam_sandbox, tmp_path, monkeypatch):
"""Why auto-completion does not use the engine's expected_attempt.
The engine compares expected_attempt against `attempt_id` falling back to
`iteration`. A record has only the latter, and the two mean different things,
so the attempt guard is applied where attempt identity actually lives: the
dispatch record in the shadow store, compared against observed evidence."""
monkeypatch.chdir(mam_sandbox)
reg = _reg(tmp_path)
job_id = _make_job(reg)
record = _load(reg, job_id)
assert "iteration" in record
assert "attempt_id" not in record, (
"if this ever changes, revisit the layering decision in the phase 2b report"
)
def test_x04_policy_rejects_evidence_from_a_superseded_attempt():
"""The attempt guard that auto-completion actually relies on."""
import copy
from lib_py.loop import policy
scenario = _scenario()
superseded = copy.deepcopy(scenario)
superseded["dispatch_context"]["attempt_id"] = 2 # evidence still says 1
decision = policy.decide(superseded)
assert decision.decision == "hold" and "attempt_id" in decision.reason
def test_x05_the_explicit_event_path_is_untouched_by_default(mam_sandbox, tmp_path, monkeypatch):
"""An explicitly completed job looks exactly as it always did."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import mqtt_common
reg = _reg(tmp_path)
job_id = _make_job(reg)
mqtt_common.update_job_status(job_id, reg, _source="publish_event", status="running")
mqtt_common.update_job_status(job_id, reg, _source="publish_event", status="completed")
record = _load(reg, job_id)
assert record["status"] == "completed"
assert "completed_by" not in record, "an explicit completion carries no auto marker"
# ==============================================================================
# 2. finalize — declared by the agent, re-derived by the reader
# ==============================================================================
def _report(tmp_path, body="done\n", staged=False):
d = tmp_path / "claude-reports"
d.mkdir(parents=True, exist_ok=True)
path = d / "report-final.md"
(path.with_name(path.name + ".tmp") if staged else path).write_text(body, encoding="utf-8")
return path
def test_finalize_promotes_a_staged_report_atomically(tmp_path):
"""A reader must never see a half-written report as finalized."""
from lib_py.delegation import finalize
path = _report(tmp_path, "final body\n", staged=True)
assert not path.exists() and path.with_name(path.name + ".tmp").exists()
manifest = finalize.finalize_report(path, "job1", 1)
assert path.exists() and not path.with_name(path.name + ".tmp").exists()
assert manifest["sha256"] == finalize.sha256_of(path)
def test_finalize_verifies_against_the_file_not_the_declaration(tmp_path):
"""The hash is recomputed, so a forged manifest cannot certify itself."""
from lib_py.delegation import finalize
path = _report(tmp_path)
finalize.finalize_report(path, "job1", 1)
assert finalize.verify_manifest(path.parent, "job1").ok
manifest_file = finalize.manifest_in(path.parent)
forged = json.loads(manifest_file.read_text(encoding="utf-8"))
forged["sha256"] = "0" * 64
manifest_file.write_text(json.dumps(forged), encoding="utf-8")
verdict = finalize.verify_manifest(path.parent, "job1")
assert not verdict.ok and "changed after finalization" in verdict.reason
def test_finalize_is_invalidated_by_a_rewritten_report(tmp_path):
"""A new body needs a new finalization; the old hash is void immediately."""
from lib_py.delegation import finalize
path = _report(tmp_path, "first\n")
finalize.finalize_report(path, "job1", 1)
assert finalize.verify_manifest(path.parent, "job1").ok
path.write_text("rewritten\n", encoding="utf-8")
verdict = finalize.verify_manifest(path.parent, "job1")
assert not verdict.ok and "changed after finalization" in verdict.reason
@pytest.mark.parametrize("kwargs,fragment", [
({"job_id": "other"}, "belongs to job"),
({"expected_attempt": 9}, "belongs to attempt"),
])
def test_finalize_rejects_a_manifest_for_a_different_job_or_attempt(tmp_path, kwargs, fragment):
from lib_py.delegation import finalize
path = _report(tmp_path)
finalize.finalize_report(path, "job1", 1)
args = {"job_id": "job1"}
args.update(kwargs)
verdict = finalize.verify_manifest(path.parent, **args)
assert not verdict.ok and fragment in verdict.reason
def test_finalize_requires_evidence_for_every_declared_side_effect(tmp_path):
"""Partial evidence is no evidence: the work is not known to be complete."""
from lib_py.delegation import finalize
path = _report(tmp_path)
finalize.finalize_report(path, "job1", 1,
side_effects=finalize.parse_side_effects(["git_push=abc123"]))
ok = finalize.verify_manifest(path.parent, "job1", expected_artifacts=["git_push"])
assert ok.ok
missing = finalize.verify_manifest(path.parent, "job1",
expected_artifacts=["git_push", "api_call"])
assert not missing.ok and "api_call" in missing.reason
def test_finalize_rejects_a_malformed_side_effect_pair():
from lib_py.delegation import finalize
with pytest.raises(ValueError):
finalize.parse_side_effects(["nokey"])
with pytest.raises(ValueError):
finalize.parse_side_effects(["kind="])
def test_finalize_missing_manifest_is_a_refusal_not_a_crash(tmp_path):
from lib_py.delegation import finalize
d = tmp_path / "empty"
d.mkdir()
verdict = finalize.verify_manifest(d, "job1")
assert not verdict.ok and "no completion manifest" in verdict.reason
def test_publish_event_finalizes_before_it_publishes(mam_sandbox, tmp_path, monkeypatch):
"""The CLI surface an agent actually calls."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import publish_event
from lib_py.delegation import finalize
reg = _reg(tmp_path)
job_id = _make_job(reg)
record = _load(reg, job_id)
record["broker"] = {"host": "127.0.0.1", "port": 65432, "tls": False}
Path(reg, job_id + ".json").write_text(json.dumps(record), encoding="utf-8")
path = _report(tmp_path, "the report\n", staged=True)
rc = publish_event.main([
"--registry-dir", reg, "--job", job_id, "--event", "completed",
"--attempts", "1", "--finalize-report", str(path),
"--side-effect", "git_push=deadbeef",
])
assert rc == 2, "the broker is unreachable, but finalization still happened"
assert path.exists(), "the staged report was promoted"
verdict = finalize.verify_manifest(path.parent, job_id)
assert verdict.ok
assert verdict.manifest["side_effects"][0]["kind"] == "git_push"
def test_publish_event_reports_a_bad_side_effect_instead_of_publishing(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import publish_event
reg = _reg(tmp_path)
job_id = _make_job(reg)
path = _report(tmp_path)
rc = publish_event.main([
"--registry-dir", reg, "--job", job_id, "--event", "completed",
"--finalize-report", str(path), "--side-effect", "malformed",
])
assert rc == 1
# ==============================================================================
# 3. autocomplete — the gate, and everything that must stop it
# ==============================================================================
def _ready_job(tmp_path, mam_sandbox, *, backend="claude-code", opt_in=True,
artifacts=None, body="report\n"):
"""A job in exactly the state that should auto-complete, plus its evidence."""
from lib_py.delegation import finalize
from lib_py.loop import store
reg = _reg(tmp_path)
job_id = _make_job(reg, agent=backend, expected_artifacts=artifacts or [])
from lib_py.delegation import engine
engine.transition(job_id, "claim", registry_dir=reg)
if opt_in:
engine.transition(job_id, "progress", registry_dir=reg,
fields={"auto_complete": True})
scenario = _scenario()
dispatch = scenario["dispatch_context"]
dispatch["job_id"] = job_id
for item in scenario["timeline"]:
env = item.get("collector_attribution")
if env:
env["job_id"] = job_id
# A non-herdr payload is a legitimate identifier source, so it has to
# agree too. Leaving the fixture's original id here is a contradiction,
# and the policy correctly refuses it.
payload = item.get("payload") or {}
if item.get("source_kind") != "herdr" and "job_id" in payload:
payload["job_id"] = job_id
# The dispatch record carries the record's own token for this attempt, which
# is what ties the evidence to the attempt that is currently running.
from lib_py.delegation import engine as _engine
token = _load(reg, job_id).get(_engine.DISPATCH_TOKEN_FIELD)
store.record_dispatch(job_id, dispatch["attempt_id"], dispatch["agent_session_uuid"],
dispatch["pane_process_generation"], workspace=str(mam_sandbox),
dispatch_token=token)
store.mark_execution_anchor(job_id, workspace=str(mam_sandbox))
report = _report(tmp_path, body)
finalize.finalize_report(report, job_id, dispatch["attempt_id"],
side_effects=finalize.parse_side_effects(
["{}=ref".format(a) for a in (artifacts or [])]))
return job_id, reg, scenario, report.parent
def test_gate_commits_when_every_condition_holds(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed, result.reason
record = _load(reg, job_id)
assert record["status"] == "completed"
assert record["completed_by"] == "auto_complete", "an inferred terminal must be marked"
assert record["pending_notification"]["event"] == "completed"
def test_g4_default_off_commits_nothing_and_leaves_the_registry_untouched(
mam_sandbox, tmp_path, monkeypatch
):
"""G4: with the flag unset, the registry must not change at all."""
monkeypatch.chdir(mam_sandbox)
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
before = _fingerprint(Path(reg))
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False
assert "disabled" in result.reason
assert _fingerprint(Path(reg)) == before, "the default must write nothing"
@pytest.mark.parametrize("backend", ["agy", "hermes", "opencode", "unknown-agent"])
def test_g9_a_backend_without_quiescence_evidence_never_auto_completes(
mam_sandbox, tmp_path, monkeypatch, backend
):
"""Inferring 'finished' from stillness needs stillness to have been observed."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox, backend=backend)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "quiescent-state evidence" in result.reason
assert _load(reg, job_id)["status"] == "running"
def test_the_allowlist_can_be_narrowed_but_never_widened(monkeypatch):
from lib_py.loop import autocomplete
monkeypatch.setenv("MAM_AUTO_COMPLETE_BACKENDS", "claude")
assert autocomplete.allowed_backends() == ("claude",)
monkeypatch.setenv("MAM_AUTO_COMPLETE_BACKENDS", "claude,hermes,opencode")
assert autocomplete.allowed_backends() == ("claude",), "unobserved backends are dropped"
def test_a_job_that_did_not_opt_in_is_not_auto_completed(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox, opt_in=False)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "opt in" in result.reason
def test_g5_a_rewritten_report_stops_the_gate(mam_sandbox, tmp_path, monkeypatch):
"""G5: the manifest is checked against the file, so a late edit disqualifies."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
(report_dir / "report-final.md").write_text("rewritten after finalization\n", encoding="utf-8")
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "changed after finalization" in result.reason
assert _load(reg, job_id)["status"] == "running"
def test_g5_missing_side_effect_evidence_stops_the_gate(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
from lib_py.delegation import finalize
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox,
artifacts=["git_push"])
# re-declare without the evidence the job said it would produce
finalize.finalize_report(report_dir / "report-final.md", job_id, 1, side_effects=[])
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "git_push" in result.reason
def test_d7_a_policy_that_cannot_decide_holds(mam_sandbox, tmp_path, monkeypatch):
"""'Could not decide' is never 'done'."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete, policy
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
def explode(_scenario):
raise RuntimeError("evidence is contradictory")
monkeypatch.setattr(policy, "decide", explode)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "policy error" in result.reason
assert _load(reg, job_id)["status"] == "running"
def test_a_late_explicit_terminal_beats_the_gate(mam_sandbox, tmp_path, monkeypatch):
"""If the agent already reported, the boundary refuses and that is correct."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.delegation import mqtt_common
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
mqtt_common.update_job_status(job_id, reg, _source="publish_event", status="error")
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False
record = _load(reg, job_id)
assert record["status"] == "error", "the explicit report wins"
assert "completed_by" not in record
# ==============================================================================
# 4. notifier — the intent is durable, and recovery re-sends it
# ==============================================================================
def test_the_notification_intent_is_committed_with_the_state(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine, notifier
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
record = _load(reg, job_id)
assert record["status"] == "completed"
intent = notifier.pending(job_id, reg)
assert intent and intent["event"] == "completed" and intent["seq"] == record["transition_seq"]
def test_flush_publishes_then_settles(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine, notifier
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
sent = []
assert notifier.flush(job_id, reg, publish=lambda j, i, r: sent.append(i) or 0)
assert len(sent) == 1 and sent[0]["event"] == "completed"
assert notifier.pending(job_id, reg) is None
# settling is idempotent: a second flush has nothing to do
assert notifier.flush(job_id, reg, publish=lambda *a: 1 / 0)
def test_a_failed_send_leaves_the_intent_pending(mam_sandbox, tmp_path, monkeypatch):
"""An unsent notification that looks sent is worse than one that is retried."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine, notifier
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
assert notifier.flush(job_id, reg, publish=lambda *a: 2) is False
assert notifier.pending(job_id, reg) is not None
assert notifier.flush(job_id, reg, publish=lambda *a: (_ for _ in ()).throw(OSError())) is False
assert notifier.pending(job_id, reg) is not None
assert _load(reg, job_id)["status"] == "completed", "the state stays committed regardless"
def test_g7_restart_recovery_resends_every_owed_notification(mam_sandbox, tmp_path, monkeypatch):
"""G7: the crash window between committing and publishing."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine, notifier
reg = _reg(tmp_path)
owed = []
for _ in range(3):
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
owed.append(job_id)
settled = _make_job(reg)
engine.transition(settled, "claim", registry_dir=reg)
assert sorted(notifier.jobs_with_pending(reg)) == sorted(owed)
sent = []
results = notifier.recover(reg, publish=lambda j, i, r: sent.append(j) or 0)
assert all(results.values()) and sorted(sent) == sorted(owed)
assert notifier.jobs_with_pending(reg) == [], "nothing is owed after recovery"
# ==============================================================================
# 6. Cross-review regressions (job f63d8279)
#
# Three reviewers, seven blocking items, all reproduced before being accepted.
# The theme: a gate whose strictness depended on the caller, and a boundary that
# trusted its only current caller instead of enforcing its own rule.
# ==============================================================================
def test_f1_an_omitted_report_directory_is_a_refusal_not_a_shortcut(
mam_sandbox, tmp_path, monkeypatch
):
"""Independent verification cannot be optional: skipping it puts the
collector's own flags back in charge of the decision."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, _report_dir = _ready_job(tmp_path, mam_sandbox)
before = _fingerprint(Path(reg))
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox)) # no report_dir
assert result.committed is False and "independently verify" in result.reason
assert _fingerprint(Path(reg)) == before, "a refusal must not write"
def test_f1_an_empty_report_directory_is_also_a_refusal(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, _rd = _ready_job(tmp_path, mam_sandbox)
empty = tmp_path / "empty-reports"
empty.mkdir()
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=empty)
assert result.committed is False and "no completion manifest" in result.reason
def test_r2_evidence_for_another_job_cannot_complete_this_one(
mam_sandbox, tmp_path, monkeypatch
):
"""The policy checks a scenario against the dispatch context inside that same
scenario, which is self-consistent by construction. The gate must bind the
evidence to the target."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
scenario["dispatch_context"]["job_id"] = "some-other-job"
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "not" in result.reason
assert _load(reg, job_id)["status"] == "running"
@pytest.mark.parametrize("field", ["attempt_id", "agent_session_uuid", "pane_process_generation"])
def test_r2_evidence_must_match_the_recorded_dispatch(mam_sandbox, tmp_path, monkeypatch, field):
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
scenario["dispatch_context"][field] = "not-what-was-dispatched"
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and field in result.reason
def test_r2_a_job_with_no_recorded_dispatch_is_refused(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
(Path(mam_sandbox) / ".mam" / "shadow" / "attribution" / (job_id + ".json")).unlink()
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "no recorded dispatch" in result.reason
def test_the_cas_rollback_switch_also_disables_auto_completion(mam_sandbox, tmp_path, monkeypatch):
"""Inferred completion is built on the CAS boundary, so committing while
that boundary is rolled back would bypass it."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
monkeypatch.setenv("MAM_ENGINE_CAS", "0")
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "rolled back" in result.reason
assert _load(reg, job_id)["status"] == "running"
@pytest.mark.parametrize("agent", ["claude-experimental", "codexish", "grok2"])
def test_o4_a_backend_key_must_match_exactly_not_by_prefix(
mam_sandbox, tmp_path, monkeypatch, agent
):
"""A future name must not inherit evidence that was never collected for it."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox, backend=agent)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "quiescent-state evidence" in result.reason
def test_a_reviewer_without_a_verdict_token_is_not_completed(mam_sandbox, tmp_path, monkeypatch):
"""Phase 0 safety contract: a reviewer that has not written its verdict has
not finished reviewing, and run_loop reads a missing token as NOT PASS."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.delegation import finalize
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(
tmp_path, mam_sandbox, body="a thorough review with no verdict line\n")
from lib_py.delegation import engine
engine.transition(job_id, "progress", registry_dir=reg, fields={"role": "Reviewer"})
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "verdict token" in result.reason
assert _load(reg, job_id)["status"] == "running"
# writing the verdict requires a fresh finalization, and then it passes
report = report_dir / "report-final.md"
report.write_text("a thorough review\n\n[VERDICT: PASS]\n", encoding="utf-8")
finalize.finalize_report(report, job_id, scenario["dispatch_context"]["attempt_id"])
ok = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert ok.committed, ok.reason
def test_a_worker_role_needs_no_verdict_token(mam_sandbox, tmp_path, monkeypatch):
"""The token requirement is a reviewer contract, not a general one."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox,
body="worker output, no verdict\n")
assert _load(reg, job_id)["role"] == "Worker"
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed, result.reason
def test_grok_f2_bookkeeping_cannot_merge_arbitrary_fields(mam_sandbox, tmp_path, monkeypatch):
"""A status-free request must not become an unrestricted merge on a record
nothing else is allowed to touch."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
before = _load(reg, job_id)
result = engine.transition(job_id, "notification_settled", registry_dir=reg,
fields={"pending_notification": None, "prompt": "HACKED",
"agent_session": "herdr:attacker"},
source="not-an-operator")
after = _load(reg, job_id)
assert result.committed is False and "may not merge" in result.reason
assert after["prompt"] == before["prompt"]
assert after["agent_session"] == before["agent_session"]
assert after["pending_notification"], "the intent survives a refused settle"
# the legitimate settle still works
from lib_py.delegation import notifier
assert notifier.settle(job_id, reg, sent_intent=after["pending_notification"])
assert notifier.pending(job_id, reg) is None
def test_r4_a_newer_intent_is_not_erased_by_a_slow_send(mam_sandbox, tmp_path, monkeypatch):
"""Publishing happens outside the lock, so a replacement can land mid-flight.
Settling unconditionally would drop a notification nobody sent."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine, notifier
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
def racing_publisher(job, intent, registry_dir):
engine.transition(job, "notification_settled", registry_dir=registry_dir,
fields={"pending_notification":
notifier.intent_for("error", 999, "later")})
return 0
notifier.flush(job_id, reg, publish=racing_publisher)
still_owed = notifier.pending(job_id, reg)
assert still_owed and still_owed["seq"] == 999, "the replacement must survive"
def test_r4_the_published_payload_carries_the_intent_identity(mam_sandbox, tmp_path, monkeypatch):
"""The transport sequence cannot identify a retry of the same intent, so the
intent's own identity travels in the payload for consumers to dedupe on."""
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine, notifier
reg = _reg(tmp_path)
job_id = _make_job(reg)
record = _load(reg, job_id)
record["broker"] = {"host": "127.0.0.1", "port": 65432, "tls": False}
Path(reg, job_id + ".json").write_text(json.dumps(record), encoding="utf-8")
engine.transition(job_id, "claim", registry_dir=reg)
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
intent = notifier.pending(job_id, reg)
notifier.flush(job_id, reg, attempts=1) # real path; broker is unreachable
from lib_py.delegation import mqtt_common
events = list(mqtt_common.iter_logged_events(job_id, mqtt_common.get_logs_dir()))
published = [e for e in events if e.get("event") == "published"]
assert published, "the attempt is recorded even though the broker refused"
carried = published[-1]["payload"]["data"].get("notification_intent")
assert carried and carried["seq"] == intent["seq"]
@pytest.mark.parametrize("entry", [
{"kind": "deploy"},
{"kind": "deploy", "reference": " "},
{"reference": "abc"},
"not-an-object",
])
def test_r3_a_side_effect_entry_must_carry_real_evidence(tmp_path, entry):
"""A kind with no reference names something without evidencing it."""
from lib_py.delegation import finalize
path = _report(tmp_path)
with pytest.raises(ValueError):
finalize.finalize_report(path, "job1", 1, side_effects=[entry])
# and a hand-written manifest is rejected at verification too
finalize.finalize_report(path, "job1", 1,
side_effects=[{"kind": "deploy", "reference": "sha"}])
manifest_file = finalize.manifest_in(path.parent)
forged = json.loads(manifest_file.read_text(encoding="utf-8"))
forged["side_effects"] = [entry]
manifest_file.write_text(json.dumps(forged), encoding="utf-8")
verdict = finalize.verify_manifest(path.parent, "job1", expected_artifacts=["deploy"])
assert not verdict.ok
def test_o2_the_manifest_records_an_absolute_report_path(tmp_path, monkeypatch):
"""A relative path would resolve against whatever directory the reader is in."""
from lib_py.delegation import finalize
path = _report(tmp_path)
monkeypatch.chdir(tmp_path)
manifest = finalize.finalize_report(Path("claude-reports/report-final.md"), "job1", 1)
assert Path(manifest["report_path"]).is_absolute()
monkeypatch.chdir(REPO_ROOT)
assert finalize.verify_manifest(path.parent, "job1").ok, "verification survives a chdir"
# ==============================================================================
# 7. Cross-review round 2 regressions (job 4cfc1649)
#
# R2 (codex): attribution was checked before the terminal commit but nothing
# bound the two, so a job could complete, be re-dispatched and
# claimed again in between, and stale evidence finished the new
# attempt.
# R4 (codex): the intent identity was emitted but the real subscriber ignored
# it, so a replay with a fresh wire sequence was accepted twice.
# ==============================================================================
def test_r2_a_redispatch_between_the_check_and_the_commit_is_refused(
mam_sandbox, tmp_path, monkeypatch
):
"""The exact interleaving: complete, re-dispatch, claim again, then let the
original commit proceed. Evidence for attempt 1 must not finish attempt 2."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.delegation import engine
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
real_transition = engine.transition
fired = {}
def racing(job, request="merge", **kwargs):
if request == "completed" and kwargs.get("source") == "auto_complete" and not fired:
fired["yes"] = True
engine.transition = real_transition
real_transition(job, "completed", registry_dir=reg)
real_transition(job, "redispatch", registry_dir=reg,
source="registry_cli", fields={"iteration": 2})
real_transition(job, "claim", registry_dir=reg)
engine.transition = racing
return real_transition(job, request, **kwargs)
monkeypatch.setattr(engine, "transition", racing)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
monkeypatch.setattr(engine, "transition", real_transition)
record = _load(reg, job_id)
assert result.committed is False and "dispatch token" in result.reason
assert record["status"] == "running", "the new attempt must still be running"
assert record["iteration"] == 2
assert "completed_by" not in record
def test_r2_evidence_from_a_superseded_dispatch_is_refused(mam_sandbox, tmp_path, monkeypatch):
"""Even without a race: evidence recorded against an older token is stale."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.delegation import engine
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
# a full re-dispatch mints a new token; the recorded evidence keeps the old
engine.transition(job_id, "completed", registry_dir=reg)
engine.transition(job_id, "redispatch", registry_dir=reg,
source="registry_cli", fields={"iteration": 2})
engine.transition(job_id, "claim", registry_dir=reg)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "superseded dispatch" in result.reason
def test_r2_a_job_without_a_dispatch_token_is_refused(mam_sandbox, tmp_path, monkeypatch):
"""Nothing to bind the decision to is a refusal, not a pass."""
monkeypatch.chdir(mam_sandbox)
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
from lib_py.delegation import engine, mqtt_common
from lib_py.loop import autocomplete
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
record = _load(reg, job_id)
record.pop(engine.DISPATCH_TOKEN_FIELD, None)
mqtt_common._atomic_write_record(job_id, reg, record)
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
workspace=str(mam_sandbox), report_dir=report_dir)
assert result.committed is False and "no dispatch token" in result.reason
def test_r2_a_new_attempt_mints_a_new_token(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
first = _load(reg, job_id)[engine.DISPATCH_TOKEN_FIELD]
engine.transition(job_id, "progress", registry_dir=reg, fields={"note": "x"})
assert _load(reg, job_id)[engine.DISPATCH_TOKEN_FIELD] == first, (
"an ordinary transition must not mint a new attempt"
)
engine.transition(job_id, "completed", registry_dir=reg)
engine.transition(job_id, "redispatch", registry_dir=reg,
source="registry_cli", fields={"iteration": 2})
assert _load(reg, job_id)[engine.DISPATCH_TOKEN_FIELD] != first
def test_r2_the_token_precondition_is_enforced_by_the_engine(mam_sandbox, tmp_path, monkeypatch):
monkeypatch.chdir(mam_sandbox)
from lib_py.delegation import engine
reg = _reg(tmp_path)
job_id = _make_job(reg)
engine.transition(job_id, "claim", registry_dir=reg)
before = _fingerprint(Path(reg))
stale = engine.transition(job_id, "completed", registry_dir=reg,
expected_dispatch_token="not-the-current-token")
assert stale.committed is False and "dispatch token changed" in stale.reason
assert _fingerprint(Path(reg)) == before, "a refused precondition must not write"
token = _load(reg, job_id)[engine.DISPATCH_TOKEN_FIELD]
assert engine.transition(job_id, "completed", registry_dir=reg,
expected_dispatch_token=token).committed
def test_r4_the_subscriber_drops_a_replayed_notification_intent():
"""A replay is re-published with a fresh wire sequence, so the monotonic
guard cannot see it; the stable identity is what must be deduplicated."""
import types
from lib_py.delegation import job_subscriber
watcher = job_subscriber._Watcher({"j1"}, {"j1": None}, {"j1": 0})
def deliver(wire_seq, intent_seq):
payload = {"schema_version": 1, "seq": wire_seq, "job_id": "j1",
"event": "completed", "timestamp": "t", "detail": "d",
"data": {"notification_intent": {"seq": intent_seq,
"event": "completed",
"timestamp": "T"}}}
watcher.on_message(None, None, types.SimpleNamespace(
topic="python/mqtt/jobs/j1/events",
payload=json.dumps(payload).encode()))
deliver(1, 7)
deliver(2, 7) # the same intent, retried
assert watcher.events.qsize() == 1, "a replayed intent must not be acted on twice"
deliver(3, 8) # a genuinely different notification
assert watcher.events.qsize() == 2
def test_r4_events_without_an_intent_are_unaffected():
"""The existing sequence guard remains the rule for ordinary events."""
import types
from lib_py.delegation import job_subscriber
watcher = job_subscriber._Watcher({"j1"}, {"j1": None}, {"j1": 0})
def deliver(wire_seq):
payload = {"schema_version": 1, "seq": wire_seq, "job_id": "j1",
"event": "progress", "timestamp": "t", "detail": "d", "data": {}}
watcher.on_message(None, None, types.SimpleNamespace(
topic="python/mqtt/jobs/j1/events",
payload=json.dumps(payload).encode()))
deliver(1)
deliver(2)
assert watcher.events.qsize() == 2
deliver(2) # non-increasing: still dropped by the sequence guard
assert watcher.events.qsize() == 2