File size: 26,375 Bytes
5e5d6c5
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
from __future__ import annotations

import hashlib
import hmac
import os
import threading
import time
from concurrent.futures import ThreadPoolExecutor
from dataclasses import FrozenInstanceError, replace
from datetime import UTC, datetime, timedelta
from pathlib import Path

import pytest

from ctx.core.install_policy_store import persist_install_policy
from ctx.core.install_consent_broker_store import (
    HumanDecisionVerifier,
    SQLiteInstallConsentBrokerStore,
    SignedHumanDecisionAssertion,
)
from ctx.engine.engine import CtxEngine
from ctx.engine.installation import InstallConsentPolicy
from ctx.engine.store import SQLiteEngineStore
from ctx.runtime.production_catalog import RELEASE_QUERY_CATALOG_ROOT_SHA256
from ctx.runtime.install_consent_broker import InstallConsentBrokerService
from ctx.runtime.release_material import RELEASE_INSTALL_SKILL_ID
from ctx.runtime.release_skill_dispatcher import ReleaseSkillDispatchResult
from ctx.runtime.release_skill_layout import (
    ReleaseSkillRuntimeLayout,
    open_release_skill_runtime_layout,
)


NOW = datetime(2026, 8, 2, 12, 30, tzinfo=UTC)
TARGET_SHA256 = "c87c65b5b09f48e27c683fb5ada9d8bc377d6d72d7742ce7aac3c2d3d97ac441"
RELEVANT_PROMPT = "repair nested Python context manager state restoration"
BROKER_AUDIENCE = "ctx-managed-skill-consent-v1"
BROKER_KEY = b"manager-test-only-human-authenticator-key"


class _BrokerVerifier(HumanDecisionVerifier):
    def verify_signed_assertion(
        self,
        assertion: SignedHumanDecisionAssertion,
        *,
        signing_bytes: bytes,
    ) -> bool:
        return hmac.compare_digest(
            assertion.proof,
            hmac.digest(BROKER_KEY, signing_bytes, "sha256"),
        )


def _layout(tmp_path: Path) -> ReleaseSkillRuntimeLayout:
    workspace = tmp_path / "workspace"
    workspace.mkdir()
    return open_release_skill_runtime_layout(
        state_root=tmp_path / "state",
        host_context_id="codex",
        native_session_id="native-session",
        workspace=workspace,
    )


def _broker(layout: ReleaseSkillRuntimeLayout) -> InstallConsentBrokerService:
    return InstallConsentBrokerService(
        store=SQLiteInstallConsentBrokerStore(
            layout.session_root / "install-consent-test.sqlite3",
            audience=BROKER_AUDIENCE,
        ),
        verifier=_BrokerVerifier(),
        workspace_identity_digest=layout.workspace_identity_digest,
        release_root_digest=RELEASE_QUERY_CATALOG_ROOT_SHA256,
        trusted_utc_now=lambda: NOW,
    )


def _signed_assertion(
    challenge_digest: str,
    *,
    decision: str,
) -> SignedHumanDecisionAssertion:
    unsigned = SignedHumanDecisionAssertion(
        challenge_digest=challenge_digest,
        decision=decision,
        principal_digest=hashlib.sha256(b"authenticated-human").hexdigest(),
        authenticator_id="test-passkey",
        audience=BROKER_AUDIENCE,
        nonce=f"manager-human-{decision}-nonce",
        issued_at="2026-08-02T12:20:00Z",
        expires_at="2026-08-02T12:45:00Z",
        proof=b"unsigned",
    )
    return replace(
        unsigned,
        proof=hmac.digest(BROKER_KEY, unsigned.signing_bytes(), "sha256"),
    )


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_safe_default_returns_consent_without_install_or_activation(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager

    layout = _layout(tmp_path)
    activation_calls = 0

    def forbidden_activation(*_args: object, **_kwargs: object) -> object:
        nonlocal activation_calls
        activation_calls += 1
        raise AssertionError("ask-each-time must not activate")

    monkeypatch.setattr(manager, "activate_installed_release_skill", forbidden_activation)

    outcome = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )

    assert outcome.status == "consent-required"
    assert len(outcome.consent_directives) == 1
    directive = outcome.consent_directives[0]
    assert directive.capability_id == RELEASE_INSTALL_SKILL_ID
    assert directive.requires_prompt
    assert directive.recommendation_only
    assert not directive.resumable
    assert not outcome.availability.has_activated_release_skill
    assert activation_calls == 0
    assert not (layout.skill_store_root / TARGET_SHA256).exists()
    assert not layout.journal_path.exists()
    assert not layout.benefit_audit_path.exists()
    assert len(outcome.management_epoch_digest) == 64
    with pytest.raises(FrozenInstanceError):
        outcome.status = "failed"  # type: ignore[misc]


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_brokered_ask_creates_one_durable_challenge_without_installing(
    tmp_path: Path,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)
    broker = _broker(layout)

    first = reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        consent_broker=broker,
        trusted_utc_now=lambda: NOW,
    )
    repeated = reconcile_prompt_capabilities(
        layout=layout,
        task="write an unrelated JavaScript button label",
        language="JavaScript",
        consent_broker=broker,
        trusted_utc_now=lambda: NOW + timedelta(minutes=5),
    )

    assert first.status == repeated.status == "consent-required"
    assert first.consent_directives == repeated.consent_directives == ()
    assert len(first.consent_challenges) == 1
    assert repeated.consent_challenges == first.consent_challenges
    challenge = first.consent_challenges[0]
    assert challenge.capability_id == RELEASE_INSTALL_SKILL_ID
    assert challenge.audience == BROKER_AUDIENCE
    assert challenge.release_root_digest == RELEASE_QUERY_CATALOG_ROOT_SHA256
    assert layout.journal_path.is_file()
    assert not (layout.skill_store_root / TARGET_SHA256).exists()


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
@pytest.mark.parametrize("decision", ("granted", "denied"))
def test_brokered_signed_continuation_resolves_without_using_new_prompt_as_authority(
    tmp_path: Path,
    decision: str,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)
    broker = _broker(layout)
    prepared = reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        consent_broker=broker,
        trusted_utc_now=lambda: NOW,
    )
    assert len(prepared.consent_challenges) == 1
    challenge = prepared.consent_challenges[0]

    resolved = reconcile_prompt_capabilities(
        layout=layout,
        task="write an unrelated JavaScript button label",
        language="JavaScript",
        consent_broker=broker,
        decision_assertion=_signed_assertion(
            challenge.challenge_digest,
            decision=decision,
        ),
        trusted_utc_now=lambda: NOW + timedelta(minutes=5),
    )

    assert resolved.consent_directives == ()
    assert resolved.consent_challenges == ()
    assert resolved.status == ("available" if decision == "granted" else "denied")
    assert (layout.skill_store_root / TARGET_SHA256).exists() is (decision == "granted")
    broker_record = broker.status(challenge.challenge_id)
    assert broker_record.state == "settled"
    assert broker_record.decision == decision


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_persisted_auto_installs_activates_and_reopens_verified_availability(
    tmp_path: Path,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )
    trusted_clock_calls = 0

    def trusted_clock() -> datetime:
        nonlocal trusted_clock_calls
        trusted_clock_calls += 1
        return NOW

    outcome = reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=trusted_clock,
    )

    assert outcome.status == "available"
    assert outcome.consent_directives == ()
    assert outcome.failure_code is None
    assert outcome.availability.has_activated_release_skill
    assert trusted_clock_calls == 1
    installed = layout.skill_store_root / TARGET_SHA256
    assert installed.is_file()
    assert hashlib.sha256(installed.read_bytes()).hexdigest() == TARGET_SHA256


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_existing_active_skill_is_inspected_before_dispatch(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )
    first = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )
    assert first.status == "available"

    def forbidden_dispatch(*_args: object, **_kwargs: object) -> object:
        raise AssertionError("active availability must bypass installation dispatch")

    monkeypatch.setattr(manager, "dispatch_release_skill_install", forbidden_dispatch)

    second = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )

    assert second.status == "available"
    assert second.availability.has_activated_release_skill
    assert second.consent_directives == ()


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_irrelevant_prompt_never_physically_installs(
    tmp_path: Path,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )

    outcome = reconcile_prompt_capabilities(
        layout=layout,
        task="write a JavaScript button label",
        language="JavaScript",
        trusted_utc_now=lambda: NOW,
    )

    assert outcome.status == "abstained"
    assert outcome.consent_directives == ()
    assert not outcome.availability.has_activated_release_skill
    assert not (layout.skill_store_root / TARGET_SHA256).exists()
    assert not layout.journal_path.exists()
    assert not layout.benefit_audit_path.exists()


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_irrelevant_then_relevant_auto_prompt_uses_fresh_canonical_stream(
    tmp_path: Path,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )

    irrelevant = reconcile_prompt_capabilities(
        layout=layout,
        task="write a JavaScript button label",
        language="JavaScript",
        trusted_utc_now=lambda: NOW,
    )
    assert irrelevant.status == "abstained"
    assert not layout.journal_path.exists()
    assert not layout.benefit_audit_path.exists()

    relevant = reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )

    assert relevant.status == "available"
    assert relevant.availability.has_activated_release_skill
    assert (layout.skill_store_root / TARGET_SHA256).is_file()


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_auto_install_supports_protocol_canonical_subsecond_clock(
    tmp_path: Path,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )
    lossy_now = NOW.replace(microsecond=123450)

    outcome = reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: lossy_now,
    )

    assert outcome.status == "available"
    assert outcome.availability.has_activated_release_skill


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_repeated_ask_prompts_are_nonresumable_and_do_not_poison_management_stream(
    tmp_path: Path,
) -> None:
    from ctx.runtime.prompt_capability_manager import reconcile_prompt_capabilities

    layout = _layout(tmp_path)

    first = reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )
    first_files = tuple(
        sorted(
            path.relative_to(layout.state_root)
            for path in layout.state_root.rglob("*")
            if path.is_file()
        )
    )
    second = reconcile_prompt_capabilities(
        layout=layout,
        task="fix Python state restoration for nested context managers",
        language="Python",
        trusted_utc_now=lambda: NOW,
    )

    assert first.status == second.status == "consent-required"
    for outcome in (first, second):
        assert len(outcome.consent_directives) == 1
        directive = outcome.consent_directives[0]
        assert directive.recommendation_only
        assert not directive.resumable
        assert not hasattr(directive, "requested_action_id")
    assert not layout.journal_path.exists()
    assert not layout.benefit_audit_path.exists()
    assert not (layout.skill_store_root / TARGET_SHA256).exists()
    durable = tuple(path for path in layout.state_root.rglob("*") if path.is_file())
    assert tuple(sorted(path.relative_to(layout.state_root) for path in durable)) == first_files
    assert set(first_files) == {
        Path("managed-capabilities-v1/.install-policy-v1.policy-current.lock"),
        Path(
            "managed-capabilities-v1/prompt-reconciliation-locks-v1/"
            f"workspace-{layout.workspace_identity_digest}.reconcile.lock"
        ),
    }
    for path in durable:
        body = path.read_bytes()
        assert RELEVANT_PROMPT.encode("utf-8") not in body
        assert os.fsencode(layout._workspace) not in body  # noqa: SLF001


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_workspace_reconciliation_serializes_codex_and_claude_first_prompts(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager

    workspace = tmp_path / "workspace"
    workspace.mkdir()
    state_root = tmp_path / "state"
    layouts = tuple(
        open_release_skill_runtime_layout(
            state_root=state_root,
            host_context_id=host,
            native_session_id=f"{host}-session",
            workspace=workspace,
        )
        for host in ("codex", "claude-code")
    )
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layouts[0].policy_store_root,
    )
    original_dispatch = manager.dispatch_release_skill_install
    count_lock = threading.Lock()
    active_dispatches = 0
    maximum_dispatches = 0

    def observed_dispatch(*args: object, **kwargs: object) -> ReleaseSkillDispatchResult:
        nonlocal active_dispatches, maximum_dispatches
        with count_lock:
            active_dispatches += 1
            maximum_dispatches = max(maximum_dispatches, active_dispatches)
        try:
            time.sleep(0.1)
            return original_dispatch(*args, **kwargs)  # type: ignore[arg-type]
        finally:
            with count_lock:
                active_dispatches -= 1

    monkeypatch.setattr(manager, "dispatch_release_skill_install", observed_dispatch)

    def reconcile(layout: ReleaseSkillRuntimeLayout):
        return manager.reconcile_prompt_capabilities(
            layout=layout,
            task=RELEVANT_PROMPT,
            language="Python",
            trusted_utc_now=lambda: NOW,
        )

    with ThreadPoolExecutor(max_workers=2) as executor:
        outcomes = tuple(executor.map(reconcile, layouts))

    assert tuple(outcome.status for outcome in outcomes) == ("available", "available")
    assert all(outcome.availability.has_activated_release_skill for outcome in outcomes)
    assert maximum_dispatches == 1
    installed = layouts[0].skill_store_root / TARGET_SHA256
    assert installed.is_file()
    assert hashlib.sha256(installed.read_bytes()).hexdigest() == TARGET_SHA256


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
@pytest.mark.parametrize("install_status", ("failed", "indeterminate"))
def test_failed_or_indeterminate_install_never_exposes(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
    install_status: str,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )
    activation_calls = 0

    def failed_dispatch(*_args: object, **_kwargs: object) -> ReleaseSkillDispatchResult:
        return ReleaseSkillDispatchResult(
            status=install_status,  # type: ignore[arg-type]
            capability_id=RELEASE_INSTALL_SKILL_ID,
            release_root_digest=RELEASE_QUERY_CATALOG_ROOT_SHA256,
        )

    def forbidden_activation(*_args: object, **_kwargs: object) -> object:
        nonlocal activation_calls
        activation_calls += 1
        raise AssertionError("unsettled install must not activate")

    monkeypatch.setattr(manager, "dispatch_release_skill_install", failed_dispatch)
    monkeypatch.setattr(manager, "activate_installed_release_skill", forbidden_activation)

    outcome = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )

    assert outcome.status == "failed"
    assert outcome.failure_code == f"install-{install_status}"
    assert outcome.consent_directives == ()
    assert not outcome.availability.has_activated_release_skill
    assert activation_calls == 0


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_activation_failure_returns_sanitized_closed_outcome(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )

    def installed_dispatch(*_args: object, **_kwargs: object) -> ReleaseSkillDispatchResult:
        return ReleaseSkillDispatchResult(
            status="installed",
            capability_id=RELEASE_INSTALL_SKILL_ID,
            release_root_digest=RELEASE_QUERY_CATALOG_ROOT_SHA256,
            install_action_content_digest="1" * 64,
            install_receipt_content_digest="2" * 64,
            installed_lineage_digest="3" * 64,
            activation_action_content_digest="4" * 64,
        )

    def failed_activation(*_args: object, **_kwargs: object) -> object:
        raise OSError(f"sensitive path: {layout.skill_store_root}")

    monkeypatch.setattr(manager, "dispatch_release_skill_install", installed_dispatch)
    monkeypatch.setattr(manager, "activate_installed_release_skill", failed_activation)

    outcome = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )

    assert outcome.status == "failed"
    assert outcome.failure_code == "activation-failed"
    assert str(layout.skill_store_root) not in repr(outcome)
    assert not outcome.availability.has_activated_release_skill


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
@pytest.mark.parametrize("boundary", ("before", "after"))
def test_reconciliation_recovers_an_activation_interruption_without_reinstalling(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
    boundary: str,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )
    original_activate = manager.activate_installed_release_skill
    calls = 0

    def interrupt_once(*args: object, **kwargs: object):  # type: ignore[no-untyped-def]
        nonlocal calls
        calls += 1
        if calls == 1:
            if boundary == "after":
                original_activate(*args, **kwargs)  # type: ignore[arg-type]
            raise OSError("injected activation interruption")
        return original_activate(*args, **kwargs)  # type: ignore[arg-type]

    monkeypatch.setattr(manager, "activate_installed_release_skill", interrupt_once)

    first = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )
    second = manager.reconcile_prompt_capabilities(
        layout=layout,
        task="fix Python state restoration for nested context managers",
        language="Python",
        trusted_utc_now=lambda: NOW + timedelta(minutes=5),
    )

    assert first.status == "failed"
    assert first.failure_code == "activation-failed"
    assert second.status == "available"
    assert second.availability.has_activated_release_skill
    installed = layout.skill_store_root / TARGET_SHA256
    assert installed.is_file()
    assert tuple(layout.skill_store_root.glob(TARGET_SHA256)) == (installed,)


@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
@pytest.mark.parametrize("boundary", ("decision", "outcome", "receipt"))
def test_reconciliation_recovers_durable_install_before_probing_a_new_prompt(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
    boundary: str,
) -> None:
    from ctx.runtime import prompt_capability_manager as manager
    from ctx.runtime import release_material

    layout = _layout(tmp_path)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="preapproved-auto"),
        layout.policy_store_root,
    )
    original_load = release_material.ReleasePinnedSkillMaterialSource.load
    material_loads = 0

    def counted_load(
        source: object,
        driver_request: object,
        material: object,
        install_body: bytes,
    ) -> str:
        nonlocal material_loads
        material_loads += 1
        return original_load(source, driver_request, material, install_body)  # type: ignore[arg-type]

    monkeypatch.setattr(
        release_material.ReleasePinnedSkillMaterialSource,
        "load",
        counted_load,
    )
    original_process = CtxEngine.process
    original_outcome = SQLiteEngineStore.record_install_outcome
    original_receipt = CtxEngine.process_install_receipt

    if boundary == "decision":

        def interrupt_after_decision(engine: CtxEngine, event: object):
            transition = original_process(engine, event)  # type: ignore[arg-type]
            if event.kind == "UserDecision":  # type: ignore[attr-defined]
                raise RuntimeError("injected interruption after durable decision")
            return transition

        monkeypatch.setattr(CtxEngine, "process", interrupt_after_decision)
    elif boundary == "outcome":

        def interrupt_after_outcome(
            store: SQLiteEngineStore,
            *args: object,
            **kwargs: object,
        ):
            original_outcome(store, *args, **kwargs)  # type: ignore[arg-type]
            raise RuntimeError("injected interruption after durable outcome")

        monkeypatch.setattr(
            SQLiteEngineStore,
            "record_install_outcome",
            interrupt_after_outcome,
        )
    else:

        def interrupt_after_receipt(
            engine: CtxEngine,
            *args: object,
            **kwargs: object,
        ):
            original_receipt(engine, *args, **kwargs)  # type: ignore[arg-type]
            raise RuntimeError("injected interruption after durable receipt")

        monkeypatch.setattr(
            CtxEngine,
            "process_install_receipt",
            interrupt_after_receipt,
        )

    first = manager.reconcile_prompt_capabilities(
        layout=layout,
        task=RELEVANT_PROMPT,
        language="Python",
        trusted_utc_now=lambda: NOW,
    )
    assert first.status == "failed"
    assert first.failure_code == "dispatch-failed"

    monkeypatch.setattr(CtxEngine, "process", original_process)
    monkeypatch.setattr(SQLiteEngineStore, "record_install_outcome", original_outcome)
    monkeypatch.setattr(CtxEngine, "process_install_receipt", original_receipt)
    persist_install_policy(
        InstallConsentPolicy(skill_mode="ask-each-time"),
        layout.policy_store_root,
    )
    second = manager.reconcile_prompt_capabilities(
        layout=layout,
        task="write an unrelated JavaScript button label",
        language="JavaScript",
        trusted_utc_now=lambda: NOW + timedelta(minutes=5),
    )
    third = manager.reconcile_prompt_capabilities(
        layout=layout,
        task="rename an unrelated CSS class",
        language="CSS",
        trusted_utc_now=lambda: NOW + timedelta(minutes=10),
    )

    assert second.status == "available"
    assert second.availability.has_activated_release_skill
    assert third.status == "available"
    assert third.availability.has_activated_release_skill
    assert material_loads == 1
    installed = layout.skill_store_root / TARGET_SHA256
    assert tuple(layout.skill_store_root.glob(TARGET_SHA256)) == (installed,)