Oliver Kieselbach 729ee56bde security: assume-breach alarm for the Global-Admin-only surface (x29 phase 0) ...

The 2026-09-04 audit found no bypass of the GA boundary, but a failed attempt left
only a Warning trace without identity, and a non-GA tools/call for a GA-only MCP tool
never reached the backend at all. This makes the boundary observable without adding
a second alarm writer (D-185):

Backend
- PrivilegedRouteDenied (Security): raised from the policy middleware's deny path for
  every 403 by an authenticated caller on a GlobalAdminOnly route. Critical for a
  caller without a platform role, Warning for a Global Reader. Details carry upn, oid,
  tid, client source, MCP tool name, correlation id, reason and policy. Throttled one
  hour per caller+path per instance (PrivilegedDenialReporter, IPrivilegedDenialReporter
  seam). PolicyResult now surfaces the denied tier; the DENIED log line gains oid, tid,
  clientSource and mcpTool.
- GET global/raw/access-probe: no-op GlobalAdminOnly route whose denial IS the signal
  (AccessProbeResponse DTO, catalog entry, parity test).
- Defense in depth: AppInsightsQueryFunction and both TableQueryFunction triggers re-check
  IsGlobalAdmin in the body (RawGlobalAdminGate); an empty RequestContext fails closed.
- Dual-register: OpsEventTypes.All, OpsAlertRulesSection.tsx, regenerated manifests.

MCP
- ga-tool-probe.ts: before dispatch, a caller without the GlobalAdmin role naming a
  strictGa tool leaves an unconditional [mcp-security] line (tool, upn, scope) and fires
  the access probe with X-MCP-Tool-Name; the SDK answer stays "Tool not found".
- GA_STRICT_TOOL_NAMES exported and pinned equal to the registered GA-minus-Reader set.
- debug-session prompt names query_backend_logs/query_table only for strictGa (Readers
  were told to call tools they cannot see); tool_call_rejected lines carry scope + upn;
  config-tool comment corrected against the actual catalog tiers.

Tests: reporter (severity, details, throttle, fail-soft), middleware policy surfacing and
IsPrivilegedDenial/BuildPrivilegedDenial, Program.cs middleware order source scan, raw
gate 403, probe catalog + JWT pins, wire parity; MCP probe unit tests, Global Reader over
HTTP on both eras, runtime refusal fires the probe, prompt gate.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

2026-09-04 13:29:06 +02:00

..

Admin

feat(app-homing): name the add-on roles that block the self-service switch and hand the admin the fix

2026-09-03 17:08:03 +02:00

Annotations

feat: free-text note search on the annotation lists

2026-09-01 22:49:35 +02:00

Apps

feat(backend,mcp): typed API contract COMPLETED — every remaining top-level success body is a manifest-exported wire DTO, and the guard now catches the bypass shapes that let them escape. The 08-31 migration's ratchet only saw inline WriteAsJsonAsync(new {...}); four bypass classes had kept ~20 endpoint families untyped: (A) Shared classes without IApiResponse — GeographicMetricsResponse, FleetHealthMetrics, ImePatternHealthResponse, SlaMetricsResponse, PlatformUsageMetrics now implement it (wire byte-identical, interface is empty); (B) Functions-local named response families moved verbatim to Shared — PlatformAgentMetricsResponse/SessionAgentMetric/DeliveryLatencyMetrics/CrashRateMetrics/CrashExceptionSummary, AgentEfficiencyMetricsResponse family (CloneAsCacheHit relocated into the service; init→set for netstandard2.0), OffboardResponse; (C) anonymous/object builders converted to DTOs with old-vs-new wire-parity facts (TypedContractCompletionWireParityTests, 14 facts incl. every vanishing-key case): rule-stats x2 (RuleStatsResponse; uniqueRules is global-only via an optional slot at its exact wire position), verdict-calibration (builder renamed VerdictCalibrationResponseBuilder, PathRow/TrendWindow to Shared), metrics/app (MetricsMath), apps list/analytics/sessions x6 routes (AppsAnalyticsHelper; legacy + paged list share ONE DTO via optional paging keys), ime-versions lean projection (ImeVersionHistoryLeanEntry [WireContract]; bare-array envelope stays, typed as IReadOnlyList<object>), device-journeys + time-attribution fleet envelopes, feature-flags, diagnostics/paths, session restore, cascade-delete Enqueued arm (error arms stay anonymous by design), feedback eligibility/list; (D) Serialize+WriteString path — ListBackupsResponse under the backup surface's own serializer options; AppInsightsQuery's Serialize is an outgoing REQUEST body (not response debt, baselined as such). TypedResponseGuardTests gains three ratchets with mutation-proven red/green: WriteAsJsonAsync(<variable assigned an anonymous object>) (empty baseline), JsonSerializer.Serialize(new{ (error-tolerant; 1 documented request-body entry), and object/Task<object>-returning Build*/Compute*/*Payload/*Response methods (1 documented union entry); the local-WriteJson-wrapper class is closed structurally (generic T : IApiResponse — an interface-typed parameter would serialize zero properties, the generic keeps the concrete type). Manifest regenerated 208→298 exported types; MCP adopts the new types (get_rule_stats typed with the trend-drop as explicit output shaping, get_platform_metrics drops its hand-declared mirror for PlatformAgentMetricsResponse, verdict-calibration-shape derives its rows via extends Omit<generated wire row> so backend renames go tsc-red). Six backend shape-test files switched from default-options serialization to the production wire options via TestWire (ApiJsonOptions; the old default-options runs only matched while payloads were anonymous with lowercase members), and three assertions that pinned null-VALUED keys now pin key ABSENCE — production always omitted them (WhenWritingNull); the parity facts prove the wire itself is unchanged. Deliberately still untyped: auth/me, CheckMcpAccess dictionary, TenantAdmins/GlobalAdmins entity-row arrays and the object-slot payloads (RuleDryRun, HealthCheck, TenantConfigFieldSchema, ...) — the documented read-model follow-up. Suites: Backend 5323, DecisionCore 577, Agent 2805, SummaryDialog 44, MCP 617, Web tsc 0 + vitest 957, generator idempotent.

2026-08-31 04:32:51 +02:00

Backup

feat(backend,mcp): typed API contract COMPLETED — every remaining top-level success body is a manifest-exported wire DTO, and the guard now catches the bypass shapes that let them escape. The 08-31 migration's ratchet only saw inline WriteAsJsonAsync(new {...}); four bypass classes had kept ~20 endpoint families untyped: (A) Shared classes without IApiResponse — GeographicMetricsResponse, FleetHealthMetrics, ImePatternHealthResponse, SlaMetricsResponse, PlatformUsageMetrics now implement it (wire byte-identical, interface is empty); (B) Functions-local named response families moved verbatim to Shared — PlatformAgentMetricsResponse/SessionAgentMetric/DeliveryLatencyMetrics/CrashRateMetrics/CrashExceptionSummary, AgentEfficiencyMetricsResponse family (CloneAsCacheHit relocated into the service; init→set for netstandard2.0), OffboardResponse; (C) anonymous/object builders converted to DTOs with old-vs-new wire-parity facts (TypedContractCompletionWireParityTests, 14 facts incl. every vanishing-key case): rule-stats x2 (RuleStatsResponse; uniqueRules is global-only via an optional slot at its exact wire position), verdict-calibration (builder renamed VerdictCalibrationResponseBuilder, PathRow/TrendWindow to Shared), metrics/app (MetricsMath), apps list/analytics/sessions x6 routes (AppsAnalyticsHelper; legacy + paged list share ONE DTO via optional paging keys), ime-versions lean projection (ImeVersionHistoryLeanEntry [WireContract]; bare-array envelope stays, typed as IReadOnlyList<object>), device-journeys + time-attribution fleet envelopes, feature-flags, diagnostics/paths, session restore, cascade-delete Enqueued arm (error arms stay anonymous by design), feedback eligibility/list; (D) Serialize+WriteString path — ListBackupsResponse under the backup surface's own serializer options; AppInsightsQuery's Serialize is an outgoing REQUEST body (not response debt, baselined as such). TypedResponseGuardTests gains three ratchets with mutation-proven red/green: WriteAsJsonAsync(<variable assigned an anonymous object>) (empty baseline), JsonSerializer.Serialize(new{ (error-tolerant; 1 documented request-body entry), and object/Task<object>-returning Build*/Compute*/*Payload/*Response methods (1 documented union entry); the local-WriteJson-wrapper class is closed structurally (generic T : IApiResponse — an interface-typed parameter would serialize zero properties, the generic keeps the concrete type). Manifest regenerated 208→298 exported types; MCP adopts the new types (get_rule_stats typed with the trend-drop as explicit output shaping, get_platform_metrics drops its hand-declared mirror for PlatformAgentMetricsResponse, verdict-calibration-shape derives its rows via extends Omit<generated wire row> so backend renames go tsc-red). Six backend shape-test files switched from default-options serialization to the production wire options via TestWire (ApiJsonOptions; the old default-options runs only matched while payloads were anonymous with lowercase members), and three assertions that pinned null-VALUED keys now pin key ABSENCE — production always omitted them (WhenWritingNull); the parity facts prove the wire itself is unchanged. Deliberately still untyped: auth/me, CheckMcpAccess dictionary, TenantAdmins/GlobalAdmins entity-row arrays and the object-slot payloads (RuleDryRun, HealthCheck, TenantConfigFieldSchema, ...) — the documented read-model follow-up. Suites: Backend 5323, DecisionCore 577, Agent 2805, SummaryDialog 44, MCP 617, Web tsc 0 + vitest 957, generator idempotent.

2026-08-31 04:32:51 +02:00

Bootstrap

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00

Config

feat(app-homing): name the add-on roles that block the self-service switch and hand the admin the fix

2026-09-03 17:08:03 +02:00

Diagnostics

feat(backend,mcp): typed API contract COMPLETED — every remaining top-level success body is a manifest-exported wire DTO, and the guard now catches the bypass shapes that let them escape. The 08-31 migration's ratchet only saw inline WriteAsJsonAsync(new {...}); four bypass classes had kept ~20 endpoint families untyped: (A) Shared classes without IApiResponse — GeographicMetricsResponse, FleetHealthMetrics, ImePatternHealthResponse, SlaMetricsResponse, PlatformUsageMetrics now implement it (wire byte-identical, interface is empty); (B) Functions-local named response families moved verbatim to Shared — PlatformAgentMetricsResponse/SessionAgentMetric/DeliveryLatencyMetrics/CrashRateMetrics/CrashExceptionSummary, AgentEfficiencyMetricsResponse family (CloneAsCacheHit relocated into the service; init→set for netstandard2.0), OffboardResponse; (C) anonymous/object builders converted to DTOs with old-vs-new wire-parity facts (TypedContractCompletionWireParityTests, 14 facts incl. every vanishing-key case): rule-stats x2 (RuleStatsResponse; uniqueRules is global-only via an optional slot at its exact wire position), verdict-calibration (builder renamed VerdictCalibrationResponseBuilder, PathRow/TrendWindow to Shared), metrics/app (MetricsMath), apps list/analytics/sessions x6 routes (AppsAnalyticsHelper; legacy + paged list share ONE DTO via optional paging keys), ime-versions lean projection (ImeVersionHistoryLeanEntry [WireContract]; bare-array envelope stays, typed as IReadOnlyList<object>), device-journeys + time-attribution fleet envelopes, feature-flags, diagnostics/paths, session restore, cascade-delete Enqueued arm (error arms stay anonymous by design), feedback eligibility/list; (D) Serialize+WriteString path — ListBackupsResponse under the backup surface's own serializer options; AppInsightsQuery's Serialize is an outgoing REQUEST body (not response debt, baselined as such). TypedResponseGuardTests gains three ratchets with mutation-proven red/green: WriteAsJsonAsync(<variable assigned an anonymous object>) (empty baseline), JsonSerializer.Serialize(new{ (error-tolerant; 1 documented request-body entry), and object/Task<object>-returning Build*/Compute*/*Payload/*Response methods (1 documented union entry); the local-WriteJson-wrapper class is closed structurally (generic T : IApiResponse — an interface-typed parameter would serialize zero properties, the generic keeps the concrete type). Manifest regenerated 208→298 exported types; MCP adopts the new types (get_rule_stats typed with the trend-drop as explicit output shaping, get_platform_metrics drops its hand-declared mirror for PlatformAgentMetricsResponse, verdict-calibration-shape derives its rows via extends Omit<generated wire row> so backend renames go tsc-red). Six backend shape-test files switched from default-options serialization to the production wire options via TestWire (ApiJsonOptions; the old default-options runs only matched while payloads were anonymous with lowercase members), and three assertions that pinned null-VALUED keys now pin key ABSENCE — production always omitted them (WhenWritingNull); the parity facts prove the wire itself is unchanged. Deliberately still untyped: auth/me, CheckMcpAccess dictionary, TenantAdmins/GlobalAdmins entity-row arrays and the object-slot payloads (RuleDryRun, HealthCheck, TenantConfigFieldSchema, ...) — the documented read-model follow-up. Suites: Backend 5323, DecisionCore 577, Agent 2805, SummaryDialog 44, MCP 617, Web tsc 0 + vitest 957, generator idempotent.

2026-08-31 04:32:51 +02:00

Feedback

feat(backend,mcp): typed API contract COMPLETED — every remaining top-level success body is a manifest-exported wire DTO, and the guard now catches the bypass shapes that let them escape. The 08-31 migration's ratchet only saw inline WriteAsJsonAsync(new {...}); four bypass classes had kept ~20 endpoint families untyped: (A) Shared classes without IApiResponse — GeographicMetricsResponse, FleetHealthMetrics, ImePatternHealthResponse, SlaMetricsResponse, PlatformUsageMetrics now implement it (wire byte-identical, interface is empty); (B) Functions-local named response families moved verbatim to Shared — PlatformAgentMetricsResponse/SessionAgentMetric/DeliveryLatencyMetrics/CrashRateMetrics/CrashExceptionSummary, AgentEfficiencyMetricsResponse family (CloneAsCacheHit relocated into the service; init→set for netstandard2.0), OffboardResponse; (C) anonymous/object builders converted to DTOs with old-vs-new wire-parity facts (TypedContractCompletionWireParityTests, 14 facts incl. every vanishing-key case): rule-stats x2 (RuleStatsResponse; uniqueRules is global-only via an optional slot at its exact wire position), verdict-calibration (builder renamed VerdictCalibrationResponseBuilder, PathRow/TrendWindow to Shared), metrics/app (MetricsMath), apps list/analytics/sessions x6 routes (AppsAnalyticsHelper; legacy + paged list share ONE DTO via optional paging keys), ime-versions lean projection (ImeVersionHistoryLeanEntry [WireContract]; bare-array envelope stays, typed as IReadOnlyList<object>), device-journeys + time-attribution fleet envelopes, feature-flags, diagnostics/paths, session restore, cascade-delete Enqueued arm (error arms stay anonymous by design), feedback eligibility/list; (D) Serialize+WriteString path — ListBackupsResponse under the backup surface's own serializer options; AppInsightsQuery's Serialize is an outgoing REQUEST body (not response debt, baselined as such). TypedResponseGuardTests gains three ratchets with mutation-proven red/green: WriteAsJsonAsync(<variable assigned an anonymous object>) (empty baseline), JsonSerializer.Serialize(new{ (error-tolerant; 1 documented request-body entry), and object/Task<object>-returning Build*/Compute*/*Payload/*Response methods (1 documented union entry); the local-WriteJson-wrapper class is closed structurally (generic T : IApiResponse — an interface-typed parameter would serialize zero properties, the generic keeps the concrete type). Manifest regenerated 208→298 exported types; MCP adopts the new types (get_rule_stats typed with the trend-drop as explicit output shaping, get_platform_metrics drops its hand-declared mirror for PlatformAgentMetricsResponse, verdict-calibration-shape derives its rows via extends Omit<generated wire row> so backend renames go tsc-red). Six backend shape-test files switched from default-options serialization to the production wire options via TestWire (ApiJsonOptions; the old default-options runs only matched while payloads were anonymous with lowercase members), and three assertions that pinned null-VALUED keys now pin key ABSENCE — production always omitted them (WhenWritingNull); the parity facts prove the wire itself is unchanged. Deliberately still untyped: auth/me, CheckMcpAccess dictionary, TenantAdmins/GlobalAdmins entity-row arrays and the object-slot payloads (RuleDryRun, HealthCheck, TenantConfigFieldSchema, ...) — the documented read-model follow-up. Suites: Backend 5323, DecisionCore 577, Agent 2805, SummaryDialog 44, MCP 617, Web tsc 0 + vitest 957, generator idempotent.

2026-08-31 04:32:51 +02:00

Global

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00

Graph

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00

Infrastructure

fix(mcp): AllMembers grants tenant members only, not every authenticated token; per-user overrides stay visible

2026-09-02 10:03:10 +02:00

Ingest

fix(ops): AgentEmergencyBreak ops event severity follows session state at break time

2026-09-03 16:03:47 +02:00

Maintenance

feat(backend): 30-day retention grace period on Pro downgrade

2026-08-22 21:00:53 +02:00

Metrics

chore: private submodule docs/ becomes internal/ (knowledge + decisions + work files + private instructions)

2026-09-04 02:19:00 +02:00

Notifications

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00

Progress

fix(backend): progress-portal lookup resolves exact serial/device name via index queries

2026-09-01 23:37:42 +02:00

Raw

security: assume-breach alarm for the Global-Admin-only surface (x29 phase 0)

2026-09-04 13:29:06 +02:00

Reports

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00

Rules

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00

Sessions

feat(delegation): MCP quota follows the managed tenant, delegated tenant slots, self-service delegation

2026-09-02 21:37:36 +02:00

Vulnerability

Typed API contract: every success response is a wire DTO, generated end-to-end into TypeScript (#136)

2026-08-31 02:30:39 +02:00