Three CmTraceTimeSkewRegression fires on 2026-09-01 (one tenant, sessions
e797117b / c06d639d / d7c8032b, agent 2.0.1445, each exactly -60.0 min,
residual 0.0, 85-88 % grid-conformant) all came from the same stale leg: those
sessions are pre-provisioning, their Part 1 ran on 2026-08-20 under agent
2.0.1409 (before per-line anchoring) and left 23-26 IME samples at -60.00,
while the Part 2 leg that completed that morning is clean at -0.16. The
terminal reconcile scans the whole event partition, so the old leg supplied the
majority of the IME samples and fired against a build the device had
self-updated to minutes earlier. Real skew, 12 days old, already fixed - and
>=821 pending pre-provisioning sessions with agent < 1412 are queued to repeat
it.
Event rows carry no agent version, so the split is drawn on ReceivedAt:
ResolveEraStartUtc walks the batch stamps of BOTH sides back from the newest
one and ends the era at the first gap > EraGapHours (2.0) - above any in-leg
upload gap (self-metrics every few minutes, session_stalled at 60 min idle,
maintenance sweep at 2 h), below every pre-provisioning handover. Median, grid
residual, conformity AND the distinct-batch guard now all run on the same
era-filtered sample set; the batch counters used to come from the full scan.
SessionSkewScan carries ReceivedAt per sample and its 20k cap keeps the NEWEST
samples (chunked trim) - keeping the head would have blinded the detector on
exactly the sessions large enough to reach it. The ops event reports
eraStartUtc plus the excluded per-side counts, so an inherited leg stays
visible without being alarmed on.
Tests: 3 new era facts, mutation-proven (EraGapHours = 100000 turns exactly
those three red). The handover fact also asserts that the old leg judged on its
own still fires, so it is the window that silences it, not a moved threshold.
Backend 5334 green, Agent core 2805 green, solution builds with 0 warnings.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Zwei Fehlbefunde des 30-Tage-Reports als Warnung im Skill verankert (SignalR-Reconnect-Ratio,
Consent-Funnel aus Frontend-Events), Datenmodell korrigiert (/progress liegt auf portal.,
dcount(user_Id) ist wegen disableCookiesUsage keine Personenzahl, pageViews.duration ist 0,
exceptions-Tabelle ist leer) und die Event-Referenz vollstaendig aus dem Web-Code regeneriert.
Alle 35 Queries der Datei einzeln ausgefuehrt, 35/35 gruen.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Closes the documented read-model follow-up of the typed API contract (51737174). Three categories:
WIRE-IDENTICAL moves/substitutions (parity facts where a literal changed, move-only otherwise): RuleDryRun + trace classes and RuleDryRunVerdict move to Shared/RulesApiModels (DryRunAnalyzeRuleResponse.Result concrete; Evidence/MatchedConditions stay heterogeneous by design); BackfillResult(+Sample)/ReclassificationResult(+Sample)/MaintenanceResult move to Shared/AdminApiModels — the shared MaintenanceJobRunResponse union envelope is split into BackfillJobRunResponse/ReclassifyJobRunResponse (identical key layout, split only for the typed slot); TenantConfigFieldSchema moves as a plain class with the record's constructor signature (Shared has no IsExternalInit — call sites just lowercase their named args); HealthCheck moves (HealthCheckResult stays in Functions, it never hits the wire); GlobalNotificationDto moves (one DTO, both notification endpoints); GetMetricsSummaryAsync builds MetricsSummaryTenantItem instead of the anonymous row ([ProjectedItems] dropped, slot concrete, substitution parity fact incl. the per-item windowDays duplicate; IMetricsRepository signature follows).
UNTYPED ENDPOINTS -> DTO (parity facts mandatory): auth/me success body becomes AuthMeResponse (15 keys in exact wire order; role null-omission fact; blocked arms stay anonymous error shapes; AuthFunctionTests.ToDynamic now exposes wire casing so asserts read camelCase for DTOs and error literals alike). auth/mcp becomes CheckMcpAccessResponse — the four fixed keys are non-nullable strings on McpAccessCheckResult, so the dictionary never emitted null values and WhenWritingNull changes nothing; the four conditional keys are nullable slots in exact insertion order, isGlobalAdmin emitted only as literal true; three facts pin plain/platform+delegated/denied against the old Dictionary literal.
ENTITY-HYGIENE (DELIBERATE wire change, exact-JSON shape pins instead of parity facts): GetGlobalAdminsResponse/AddGlobalAdminResponse serve GlobalAdminRow, GET+POST tenants/{id}/admins serve TenantAdminRow, preview/whitelist serves PreviewWhitelistTenantEntry { tenantId } — partitionKey/rowKey/eTag/timestamp (and the whitelist's garbage approvedAt/approvedBy defaults) are gone from the wire. Every wire instance was synthetically back-mapped from Shared read models (GlobalAdminEntry/TenantMember) anyway; the services now map forward into the rows and the ITableEntity types stay storage-only. Consumer audit (web+MCP) found exactly ONE reader of a table key: AdminConfigContext preview-approval (t.partitionKey -> t.tenantId, same change). Shape pins assert the full JSON and table-key absence.
Guard: TypedResponseGuardTests gains an object-slot reflection ratchet over the reachable wire-type graph (IApiResponse + [WireContract] roots, transitive property walk; [ProjectedItems] slots and dictionary values exempt) with mutation-proven red/green; baseline holds exactly RuleDryRunCondition.Evidence, and stale entries fail the ratchet-down arm.
Codegen: manifest 298->311 exported types, every former unknown slot concrete in both wire-types.generated.ts copies; generator idempotent. MCP adopts: access-guard.ts drops its inline auth/mcp cast for CheckMcpAccessResponse (defensive delegatedTenantIds normalization kept), rules.ts drops the local RuleDryRun view (the dead verdict cast disappears; matchedConditions feeds interpolateRuleTemplate typed), get_tenant_config_schema gets its envelope type. Web adopts: new types/auth.ts shim (TenantRole/HomedApp narrowing over AuthMeResponse), AuthContext.UserInfo derives from the wire type and both duplicated as-cast mapping blocks collapse into one toUserInfo(); health-check page, notification contexts and the TenantAdmin types re-export generated interfaces.
Deliberately untouched: config/all + tenants/{id}/admins stay bare arrays (typed items, envelope would break four array-typed web readers — ime-versions precedent); error bodies stay anonymous; error-body ratchet remains a separate PR; the two documented guard baseline entries stay.
Suites: Backend 5330, Agent 2805, DecisionCore 577, SummaryDialog 44, MCP tsc 0 + 617, Web tsc 0 + vitest 957 + eslint 0; solution builds warning-free.
Deploy note: backend + web + MCP all need deployment; the category-C wire change is only visible in the GA admin UI (preview-approval badges) between backend and web deploy.
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
* feat(backend): typed API response infrastructure — IApiResponse marker, wire-settings single source, widened anonymous-body ratchet (batch 0 of typed-api-contract)
IApiResponse (Shared, with SuccessMessageResponse/SuccessOnlyResponse and the
ProjectedItems/WireContract attributes for the upcoming manifest export) plus generic
OkAsync/CreatedAsync/JsonAsync<T> overloads constrained on it, so anonymous success
bodies stop compiling once the legacy object overloads go; ApiJsonOptions is now the
single source of the production wire settings (camelCase, WhenWritingNull, string
enums) used by Program.cs AND the three endpoint-test harnesses (two serialized
PascalCase-with-nulls, one JsonSerializerDefaults.Web — all could pass while the
deployed wire differed); TypedResponseGuardTests replaces OkAsyncBaselineGuardTests
with the same ratchet mechanics over two frozen baselines (44 anonymous helper sites
unchanged, plus 134 anonymous success WriteAsJsonAsync sites across 76 files —
error-shaped bodies stay anonymous by design) and a flatness/location reflection
guard (IApiResponse implementers derive from object and live in Shared, protecting
JSON key order); ApiResponseWireParityTests carries the ordinal old-vs-new
serialization proof each converted site must add
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(backend): Sessions/Annotations/Reports/Raw/Progress success responses are typed wire DTOs (batch 1 of typed-api-contract)
34 anonymous success bodies across 24 functions replaced with flat IApiResponse DTOs
in Shared (SessionApiModels/ReportApiModels + new Annotation/Raw/ProgressApiModels) —
minimal in-place transformation, call structure/status codes untouched, declaration
order == wire order, nullable exactly where a site can emit null (WhenWritingNull);
fields= projections stay IReadOnlyList<object> marked [ProjectedItems(SessionSummary/
EnrollmentEvent)], raw table rows stay PascalCase-verbatim dictionaries (no
DictionaryKeyPolicy — pinned by test), AnnotationWire and the distress-report
aggregations now build named item types instead of anonymous ones, and shared shapes
collapse to one DTO (SessionListResponse x4, SessionAnnotationListResponse x2,
SessionReportListResponse/GetSessionEventsResponse paged+unpaged via absent-null
nextLink); 54 new wire-parity facts serialize each OLD anonymous literal (independent
fixture copied from the pre-migration site) against the new DTO ordinally, with a
null case per vanishing key; ratchet baselines shrink 44->14 helper sites and
134->122 write sites; the three distress-report test files read the now-typed
aggregation items directly instead of via reflection-ToDynamic
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(backend): every anonymous API success body is a typed wire DTO — ratchet baselines empty, legacy object overloads deleted (batches 2-5 of typed-api-contract)
the remaining 141 anonymous success sites (Admin 36, Rules 24, Config 15, Graph 5,
Metrics 16, Vulnerability 17, Infrastructure/Global/Notifications/Bootstrap/
Diagnostics 20 incl. the 429 quota body in McpQuotaEnforcementMiddleware, plus the
14 helper-call sites) now return flat IApiResponse DTOs from Shared (new Admin/
Rules/Config/Graph/Metrics/Vulnerability/Infrastructure/Notifications/Diagnostics
ApiModels; GeographicApiModels extended) — same minimal in-place transformation as
batch 1: declaration order == wire order, nullable exactly where a site can emit
null, dual success/failure sites keep their status-code logic and reuse
SuccessMessageResponse, MCP-critical key names (records/summaries/inventory)
pinned; wire item shapes that were function-local (CustomsArchive Run/EntrySummary,
CpeMappingDto, UnmatchedSoftwareAgg, AutoResolve items, LogPatternTestResult,
CveExposureSummary/SeverityBreakdown/TopCve — records rewritten as flat classes,
netstandard2.0 has no IsExternalInit) moved to Shared so the manifest export sees
them; payload types that must stay in the Functions assembly (RuleDryRun,
PreviewWhitelistEntity, GlobalAdminEntity, HealthCheck, GlobalNotificationDto,
Backfill/Reclassification/MaintenanceResult, TenantAdminEntity,
TenantConfigFieldSchema) ride as object slots — wire-identical via runtime-type
serialization, proven by the parity facts; 126 new wire-parity facts total
(Admin 26, Rules 12, Config 17, Graph 7, Metrics 16, Vulnerability 19,
Infrastructure 21 + Dictionary-key-verbatim and null-value pins); both
TypedResponseGuard baselines are now EMPTY regression guards and the untyped
OkAsync/CreatedAsync(object) overloads are gone, so a new anonymous success body
no longer compiles through the helper and fails the guard through raw
WriteAsJsonAsync; deliberately untouched: error bodies (one anonymous shape by
design), auth/me (AuthDecisionResult.Body slot shared with error bodies, tests
reflect over it), CheckMcpAccess (conditional dictionary keys), raw-byte streamers
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(contract): C#→TS wire codegen — shared-manifests v2 exports the full response-type graph as generated TypeScript (batch 6 of typed-api-contract)
SharedManifestParityTests now writes schemaVersion 2: the v1 catalog sections stay
byte-compatible (sectionFieldMap/signalrMessages/sharedManifestChecks untouched),
the consumer-less sessionSummary section is gone, and a new types section carries
every wire type — roots are all IApiResponse implementers plus [WireContract]-marked
types (SlaViolatorSession, ImeVersionHistoryEntry), transitively closed by the new
WireTypeManifestBuilder over refs, collections, dictionaries, enums and
[ProjectedItems] item types (208 types). Fields honour [JsonPropertyName]/
[JsonIgnore], get-only members export readonly, a nullable slot exports optional
(WhenWritingNull omits the KEY — explicit null survives only inside collections and
dictionary values, so the nullable flag lives on nested descriptors only), field
order follows STJ's derived-before-base serialization for the one legacy inherited
wire type (LocationSessionRow : SessionSummary), and unmappable shapes (non-string
dictionary keys, foreign BCL classes) fail the build instead of degrading to
unknown. C# <summary> texts travel as JSDoc: Shared builds XML docs now (doc-quality
warnings CS1591/1573/1574/1584/0419 suppressed — crefs to foreign assemblies cannot
resolve from Shared; CS1570 malformed-XML stays an error, which surfaced a raw
0x01 control char and an unescaped ampersand in existing comments).
generate-shared-manifest-types.js emits utils/wire-types.generated.ts (interfaces +
string-union enums, 2.7k lines) next to the lean literal module, npm run
generate:manifests wraps it, the vitest freshness test pins BOTH outputs, and a new
shared-manifests-in-sync CI job (guardrails-in-sync pattern) fails on drift
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(web): hand-written response types re-export the generated wire interfaces (batch 7+8 of typed-api-contract)
types/session.ts, types/enrollment.ts and types/adminConfig.ts are re-exports over
utils/wire-types.generated.ts (Session = SessionSummary alias for the 25+ barrel
importers; adminConfig keeps only the excessiveEventAutoActionMode literal-union
narrowing and the client-side OpsAlertRule view) — the generated types are never
weakened, consumers adapt: durationSeconds is now optional as on the wire (int? —
consumers guard with ?? 0, which also retires the latent NaN-minutes display on
in-progress sessions), status is the SessionStatus union (fixtures on canonical
values; the generic string-sort test keeps its own fixture type), required bools
break hand-built fixtures once → new test/factories.ts makeSession/makeEvent
(Object.assign, not spread — Partial spread re-widens and tests must force
data: undefined); the string|null lifecycle branches were already truthiness-based.
Duplicate local types deleted: geographic-performance now uses the real
LocationSessionRow wire type (incl. DO fields), GlobalSearch the generated
QuickSearchResult, sla/page.tsx the generated SlaViolatorSession (status stays a
number — C# int, rendered via statusLabels); sessionExportUtils aliases
SessionExportEvent = EnrollmentEvent and derives RuleResultCsvData via Pick, CSV
output unchanged; the three structural ReplayInputEvent clones (InstallEvent,
ScriptInputEvent, DownloadEvent) are aliases now. docs: drift-guards.md replaces the
shrink-only-OkAsync section with the typed-wire-DTO contract, index.md/log.md
updated. tsc 0, vitest 957, eslint 0
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(tests): SlaMetricsServiceTests anchor sessions inside the current ISO week — the 'now - 1h' fixture crossed into LAST week during the first hour of every Monday (UTC), emptying CurrentWeek and failing the three snapshot asserts (CI on Mon 2026-08-31 00:20Z; pre-existing Monday-morning time bomb, unrelated to the DTO migration); the anchor is now clamped to the week's Monday 00:00, proven green inside the same failure window
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
The extra hint line under the search field made the header say the same
thing three times (subheadline, placeholder, hint). The Cloud PC guidance
now rides on the input's title attribute — the plain browser tooltip on
hover, no cursor change — and the subheadline no longer repeats the input
format. Same guidance is documented in the customer docs (Windows 365
Cloud PCs, Progress Portal).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The placeholder carried the Cloud PC instruction ("Cloud PC: the name shown
in the Windows App") and was clipped by the input width, so end users saw a
truncated sentence they could not read. Placeholder is now short ("Serial
number or device name..."), the Cloud PC guidance moved to a permanent hint
line below the field (wired via aria-describedby), the subheadline mentions
the device name as an accepted input, and the button no longer wraps on
narrow viewports.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The shutdown run allowed every logged-in user (explorer.exe owner) dynamically, so a backdoor account created after the startup scan and signed in before enrollment completed was scored 0. The WMI inventory is now read first and a logged-in name that is a local account is rejected for the account and the profile check (reported as logged_in_local_accounts); only Entra/domain identities — the only ones seen in real sessions — remain dynamically allowed for their profile folder.
Built-ins are recognised by RID 500/501/503/504 on the machine SID in addition to their English names: since disabled accounts are inventoried (88dfd331), localized Gast/Invité/Administrateur would otherwise flag every non-English device. kioskUser0 (Assigned Access autologon) joins the built-in list; the profile check skips junctions and $<32 hex> folders (cannot be an account name, pure payload noise). ANALYZE-ID-002 1.3.0 explanation mentions the new field.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The path guards, the enumeration's reparse-point skip and the per-file attribute check all judged path strings, while the FileStream feeding the ZIP opened that string later (after earlier files were compressed). Under any recursive source folder a local user can write to, a subdirectory turned into a junction in that window made SYSTEM copy the junction target into the tenant-uploaded package.
PinnedSourceFolder holds each section folder open for the whole section (final path must equal the validated path, 8.3-expanded; FILE_LIST_DIRECTORY without delete share, so NTFS refuses renaming it or any ancestor) and opens each candidate with FILE_FLAG_OPEN_REPARSE_POINT, requiring the handle's final path to be exactly <canonical folder>\<relative path>; the archive is fed from that same handle. Manifest: FOLDER REJECTED (...) / SKIPPED (resolved outside validated folder) / FAILED (open). The race is pinned by a test that swaps the directory from the BeforeSourceFileOpen seam; on the previous code the same test copies the junction target.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A crafted /sessions?id=x%2F..%2F..%2Fglobal%2Fy%23 deep link let the victim's browser resolve
dot-segments into a different API route and truncate builder suffixes via '#', turning UI
actions into attacker-chosen authenticated same-origin requests. Hydration now also requires
the returned sessionId to match the requested one.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Oliver Kieselbach