diff --git a/packages/adapters/src/media-context.ts b/packages/adapters/src/media-context.ts
index 78f39cd..362a854 100644
--- a/packages/adapters/src/media-context.ts
+++ b/packages/adapters/src/media-context.ts
@@ -11,10 +11,30 @@ import type {
   MediaSourceProvider,
   MotionGraphicsRenderer,
 } from "@rakazo/adapter-kit";
-import type { ModelTier } from "@rakazo/contracts";
+import type {
+  AiAlteration,
+  ClientMediaItem,
+  CreateMarkInput,
+  Edl,
+  EdlError,
+  FfprobeReport,
+  GateReport,
+  IntroVariant,
+  MarketingCopy,
+  MarkTreatment,
+  MediaEditPlan,
+  MediaMark,
+  MediaPublication,
+  MediaRender,
+  MediaRenderOutput,
+  MediaRenderQuality,
+  ModelTier,
+  PlatformProfile,
+  Utm,
+} from "@rakazo/contracts";
 import type { MediaRepos, PrismaClient } from "@rakazo/db";
 import { getLogger } from "@rakazo/logging";
-import type { ProfileSet } from "@rakazo/media";
+import type { CompileSource, ProfileSet } from "@rakazo/media";
 import type { z } from "zod";
 import { aiRecipient } from "./ai-consent.js";
 
@@ -184,3 +204,152 @@ export function createMediaModelClient(deps: {
     },
   };
 }
+
+// ---------------------------------------------------------------------------
+// Service contracts between media slices. Each slice implements its part; the
+// API, worker, and agent tools only depend on these interfaces.
+// ---------------------------------------------------------------------------
+
+export type CreateMarkInputType = z.infer<typeof CreateMarkInput>;
+
+export interface MediaActor {
+  spaceId: string;
+  userId: string;
+}
+
+export interface MediaIngestService {
+  /** Client-pushed metadata (Apple Photos, iOS): upsert, apply deletions, enqueue work. */
+  pushItems(
+    actor: MediaActor,
+    input: {
+      sourceId: string;
+      items: ClientMediaItem[];
+      deletedExternalIds: string[];
+      syncToken: string | null;
+      complete: boolean;
+    },
+  ): Promise<{ created: number; updated: number; unchanged: number; deleted: number }>;
+  /** Enqueue an incremental sync of a server-side source. */
+  requestSync(actor: MediaActor, sourceId: string): Promise<void>;
+  /** An upload finished: move the file into place and enqueue proxy and analysis. */
+  uploadCompleted(
+    actor: MediaActor,
+    input: { assetId: string; tempPath: string; sha256: string; fileName: string },
+  ): Promise<void>;
+  recluster(actor: MediaActor): Promise<void>;
+  /** Remove a source with its assets and every derived file. */
+  removeSource(actor: MediaActor, sourceId: string): Promise<void>;
+}
+
+export interface MediaPreparedSources {
+  sources: Map<string, CompileSource>;
+  /** Alterations applied while preparing (inpaint, synthetic identity, voice). */
+  aiAlterations: AiAlteration[];
+  /** Redactions that could not be honored and fell back, for the plan rationale. */
+  fallbacks: string[];
+}
+
+export interface MediaPrivacyService {
+  /**
+   * Resolve every clip's source file and apply all face, mark, and region
+   * redactions from the EDL plus person and mark defaults. Fails closed: a
+   * redaction that cannot be applied throws instead of returning an unredacted source.
+   */
+  prepareSources(input: {
+    actor: MediaActor;
+    projectId: string;
+    edl: Edl;
+    quality: MediaRenderQuality;
+    workDir: string;
+    signal?: AbortSignal;
+  }): Promise<MediaPreparedSources>;
+  /** Re-detect on the rendered output and evaluate the full gate. */
+  gate(input: {
+    actor: MediaActor;
+    projectId: string;
+    edl: Edl;
+    profile: PlatformProfile;
+    outputPath: string;
+    ffprobe: FfprobeReport;
+    copy: { title: string | null; caption: string | null; tags: string[] };
+    bundleHasDisclosure: boolean;
+    autoFixRound: number;
+    signal?: AbortSignal;
+  }): Promise<GateReport>;
+  /** Create a mark: segment from the prompt, propagate, score, and suggest a fallback. */
+  createMark(actor: MediaActor, input: CreateMarkInputType): Promise<MediaMark>;
+  updateMark(
+    actor: MediaActor,
+    input: {
+      markId: string;
+      treatment?: MarkTreatment;
+      label?: string | null;
+      personId?: string | null;
+    },
+  ): Promise<MediaMark>;
+  /** Delete a person, their biometric data, and their files. */
+  removePerson(actor: MediaActor, personId: string): Promise<void>;
+}
+
+export interface MediaRenderService {
+  start(
+    actor: MediaActor,
+    input: { planId: string; quality: MediaRenderQuality },
+  ): Promise<MediaRender>;
+  cancel(actor: MediaActor, renderId: string): Promise<MediaRender>;
+  /** Absolute path of a finished output for streaming, or null. */
+  outputPath(actor: MediaActor, renderId: string, fileName: string): Promise<string | null>;
+}
+
+export interface MediaMarketingService {
+  autoPlan(
+    actor: MediaActor,
+    input: { projectId: string; profileIds?: string[] },
+  ): Promise<MediaEditPlan[]>;
+  submitPlan(
+    actor: MediaActor,
+    input: {
+      projectId: string;
+      edl: unknown;
+      rationale: string | null;
+      createdBy: "agent" | "user";
+    },
+  ): Promise<{ ok: true; plan: MediaEditPlan } | { ok: false; errors: EdlError[] }>;
+  introVariants(
+    actor: MediaActor,
+    input: { brandKitId: string; count: number },
+  ): Promise<IntroVariant[]>;
+  thumbnails(
+    actor: MediaActor,
+    input: { renderId: string; count: number },
+  ): Promise<MediaRenderOutput[]>;
+  copy(actor: MediaActor, input: { renderId: string; language: string }): Promise<MarketingCopy>;
+  createPublication(
+    actor: MediaActor,
+    input: {
+      renderId: string;
+      destination: string;
+      targetUrl: string | null;
+      utm: Utm | null;
+      title: string | null;
+      caption: string | null;
+      tags: string[];
+      thumbnailVariant: string | null;
+      scheduledAt: string | null;
+    },
+  ): Promise<MediaPublication>;
+  bundle(actor: MediaActor, publicationId: string): Promise<MediaPublication>;
+  cancelPublication(actor: MediaActor, publicationId: string): Promise<MediaPublication>;
+  importMetricsCsv(
+    actor: MediaActor,
+    input: { mappingId: string; csv: string },
+  ): Promise<{ imported: number; skipped: Array<{ row: number; reason: string }> }>;
+}
+
+export interface MediaServices {
+  deps: MediaServiceDeps;
+  ingest: MediaIngestService;
+  privacy: MediaPrivacyService;
+  render: MediaRenderService;
+  marketing: MediaMarketingService;
+}