diff --git a/src/process/ArtifactAnalysisResources.test.ts b/src/process/ArtifactAnalysisResources.test.ts
index 58aff744d..ede5260ab 100644
--- a/src/process/ArtifactAnalysisResources.test.ts
+++ b/src/process/ArtifactAnalysisResources.test.ts
@@ -1,9 +1,13 @@
+import { OwnedCommandFailure } from "./OwnedCommand.js";
 import { EventEmitter } from "node:events";
 import { PassThrough } from "node:stream";
 import { expect, it } from "vitest";
 import { readStableArtifact } from "../artifacts/readStableArtifact.js";
 import { ArtifactReaderFailure } from "../artifacts/ArtifactReader.js";
-import { AnalysisOutputError } from "../domain/analysisErrorCore.js";
+import {
+  AnalysisCancelledError,
+  AnalysisOutputError,
+} from "../domain/analysisErrorCore.js";
 import { createEvidence } from "../domain/evidence.js";
 import { projectAnalysisError } from "../domain/analysisErrorProjection.js";
 import { ProviderAdapterError } from "../domain/providerAdapterError.js";
@@ -332,3 +336,334 @@ it("keeps a runtime root until its descriptor cleanup owner is released", async
   expect(outer.error.cleanupIncomplete).toBe(false);
   await resources.close();
 });
+
+it.each([
+  null,
+  "opaque reason",
+  new ProviderCleanupError("foreign", ["foreign-resource"], {
+    reason: "caller cleanup",
+  }),
+])(
+  "preserves caller cancellation at resource admission: %s",
+  async (reason) => {
+    const resources = new ArtifactAnalysisResources(
+      "fixture",
+      "inspect_signal_decoders",
+      readStableArtifact,
+      readLinuxResourceLimits,
+      { message: "busy", details: {} },
+    );
+    let calls = 0;
+    try {
+      const result = await resources.run(async () => {
+        calls++;
+        return ok("unexpected");
+      }, AbortSignal.abort(reason));
+      expect(result.ok).toBe(false);
+      if (result.ok) throw new Error("Expected cancelled admission");
+      expect(result.error.cause).toBe(reason);
+      expect(result.error.cleanupResources).toEqual([]);
+      expect(calls).toBe(0);
+      if (reason instanceof ProviderCleanupError)
+        expect(reason.cleanupIncomplete).toBe(true);
+    } finally {
+      await resources.close();
+    }
+  },
+);
+
+it.each([
+  null,
+  "opaque reason",
+  new ProviderCleanupError("foreign", ["foreign-resource"], {
+    reason: "caller cleanup",
+  }),
+])(
+  "projects the command owner's exact cancellation independently of physical causes: %s",
+  async (reason) => {
+    const resources = new ArtifactAnalysisResources(
+      "fixture",
+      "inspect_signal_decoders",
+      readStableArtifact,
+      readLinuxResourceLimits,
+      { message: "busy", details: {} },
+    );
+    const physical = new Error("physical collection interruption");
+    const failure = new OwnedCommandFailure(
+      "cancelled",
+      "cancelled command",
+      null,
+      null,
+      { cause: physical, cancellation: { reason } },
+    );
+    try {
+      const error = resources.commandFailure(
+        failure,
+        { command_timeout_ms: 100, output_bytes: 1024 },
+        undefined,
+      );
+      expect(error).toMatchObject({ _tag: "AnalysisCancelledError" });
+      expect(error.cause).toBe(reason);
+      expect(error.cleanupResources).toEqual([]);
+      expect(failure.cause).toBe(physical);
+      if (reason instanceof ProviderCleanupError)
+        expect(reason.cleanupIncomplete).toBe(true);
+    } finally {
+      await resources.close();
+    }
+  },
+);
+
+it.each([false, true])(
+  "preserves artifact cancellation and independent failed cleanup (failed close: %s)",
+  async (failedClose) => {
+    const reason = { request: "artifact cancellation" };
+    let mayClose = false;
+    const readArtifact: typeof readStableArtifact = async (
+      _path,
+      _limit,
+      _signal,
+      _fs,
+      scope,
+    ) => {
+      if (failedClose) {
+        if (scope === undefined)
+          throw new Error("Expected retained file scope");
+        const retained = {
+          kind: "lease",
+          resource: "descriptor",
+          lease: {
+            release: async () => {
+              if (!mayClose)
+                throw new Error("injected descriptor close failure");
+            },
+          },
+        } as const;
+        expect(await scope.release(retained)).toMatchObject({ kind: "failed" });
+      }
+      throw new ArtifactReaderFailure("cancelled", "read cancelled", {
+        cause: reason,
+        ...(failedClose
+          ? {
+              cleanup: {
+                reason: "injected descriptor close failure",
+                resources: ["descriptor"],
+              },
+            }
+          : {}),
+      });
+    };
+    const resources = new ArtifactAnalysisResources(
+      "fixture",
+      "inspect_signal_decoders",
+      readArtifact,
+      readLinuxResourceLimits,
+      { message: "busy", details: {} },
+    );
+    try {
+      const result = await resources.run(async () =>
+        ok(await resources.read("fixture", 1)),
+      );
+      if (result.ok) throw new Error("Expected cancelled artifact read");
+      const primary = failedClose ? result.error.cleanupPrimary : result.error;
+      expect(primary).toMatchObject({ _tag: "AnalysisCancelledError" });
+      expect(primary?.cause).toBe(reason);
+      expect(result.error.cleanupIncomplete).toBe(failedClose);
+      mayClose = true;
+      await resources.close();
+      expect(result.error.cleanupIncomplete).toBe(false);
+      expect(primary?.cause).toBe(reason);
+    } finally {
+      mayClose = true;
+      await resources.close();
+    }
+  },
+);
+
+it("retains a physical command failure when the owner also observed late cancellation", async () => {
+  const resources = new ArtifactAnalysisResources(
+    "fixture",
+    "inspect_signal_decoders",
+    readStableArtifact,
+    readLinuxResourceLimits,
+    { message: "busy", details: {} },
+  );
+  const reason = { request: "late cancellation" };
+  const failure = new OwnedCommandFailure(
+    "process",
+    "physical failure",
+    null,
+    null,
+    { cancellation: { reason } },
+  );
+  try {
+    const error = resources.commandFailure(
+      failure,
+      { command_timeout_ms: 100, output_bytes: 1024 },
+      undefined,
+    );
+    expect(error).toMatchObject({ _tag: "AnalysisOutputError" });
+    expect(error.cause).toBe(failure);
+  } finally {
+    await resources.close();
+  }
+});
+
+it("preserves typed caller cancellation through failed workspace cleanup and retry", async () => {
+  let denied = true;
+  const resources = new ArtifactAnalysisResources(
+    "fixture",
+    "inspect_signal_decoders",
+    readStableArtifact,
+    readLinuxResourceLimits,
+    { message: "busy", details: {} },
+  );
+  const reason = { request: "cancelled before workspace cleanup" };
+  const primary = new AnalysisCancelledError("inspect_signal_decoders", {
+    cause: reason,
+  });
+  resources.retain({
+    path: "workspace",
+    close: async () => {
+      if (denied) throw new Error("workspace close denied");
+    },
+  });
+  try {
+    const result = await resources.finish(err(primary), () => {
+      throw new Error("Must not produce success Evidence");
+    });
+    if (result.ok) throw new Error("Expected retained workspace");
+    expect(result.error.cleanupPrimary).toBe(primary);
+    expect(result.error.cleanupPrimary?.cause).toBe(reason);
+    await expect(resources.close()).rejects.toMatchObject({
+      cleanupIncomplete: true,
+    });
+    denied = false;
+    await resources.close();
+    expect(result.error.cleanupIncomplete).toBe(false);
+    expect(result.error.cleanupPrimary?.cause).toBe(reason);
+  } finally {
+    denied = false;
+    await resources.close();
+  }
+});
+
+it("observes cancellation after pending descriptor cleanup before admitting replacement work", async () => {
+  let closes = 0;
+  let cleanupStarted: () => void = () => {};
+  const started = new Promise<void>((resolve) => {
+    cleanupStarted = resolve;
+  });
+  let releaseCleanup: () => void = () => {};
+  const held = new Promise<void>((resolve) => {
+    releaseCleanup = resolve;
+  });
+  const readArtifact: typeof readStableArtifact = async (
+    _path,
+    _limit,
+    _signal,
+    _fs,
+    scope,
+  ) => {
+    if (scope === undefined) throw new Error("Expected file scope");
+    const retained = {
+      kind: "lease",
+      resource: "descriptor",
+      lease: {
+        release: async () => {
+          closes++;
+          if (closes === 1) throw new Error("descriptor close denied");
+          cleanupStarted();
+          await held;
+        },
+      },
+    } as const;
+    await scope.release(retained);
+    throw new ArtifactReaderFailure("io", "descriptor cleanup failed", {
+      cleanup: { reason: "descriptor close denied", resources: ["descriptor"] },
+    });
+  };
+  const resources = new ArtifactAnalysisResources(
+    "fixture",
+    "inspect_signal_decoders",
+    readArtifact,
+    readLinuxResourceLimits,
+    { message: "busy", details: {} },
+  );
+  let calls = 0;
+  try {
+    const first = await resources.run(async () =>
+      ok(await resources.read("fixture", 1)),
+    );
+    expect(first).toMatchObject({
+      ok: false,
+      error: { cleanupIncomplete: true },
+    });
+    const caller = new AbortController();
+    const reason = { request: "cancel while old descriptor closes" };
+    const pending = resources.run(async () => {
+      calls++;
+      return ok("Must not run");
+    }, caller.signal);
+    await started;
+    caller.abort(reason);
+    releaseCleanup();
+    const result = await pending;
+    if (result.ok) throw new Error("Expected cancelled replacement");
+    expect(result.error.cause).toBe(reason);
+    expect(calls).toBe(0);
+    if (!first.ok) expect(first.error.cleanupIncomplete).toBe(false);
+  } finally {
+    releaseCleanup();
+    await resources.close();
+  }
+});
+
+it.each([false, true])(
+  "keeps an existing physical primary across cleanup-time cancellation (failed close: %s)",
+  async (failsClose) => {
+    const resources = new ArtifactAnalysisResources(
+      "fixture",
+      "inspect_signal_decoders",
+      readStableArtifact,
+      readLinuxResourceLimits,
+      { message: "busy", details: {} },
+    );
+    const caller = new AbortController();
+    const primary = new AnalysisOutputError(
+      "inspect_signal_decoders",
+      "physical producer report failure",
+    );
+    let denied = failsClose;
+    resources.retain({
+      path: "workspace",
+      close: async () => {
+        caller.abort({ request: "late cancellation" });
+        if (denied) throw new Error("workspace close denied");
+      },
+    });
+    try {
+      const result = await resources.finish(
+        err(primary),
+        () => {
+          throw new Error("Failed work must not produce success Evidence");
+        },
+        "inspect_signal_decoders",
+        caller.signal,
+      );
+      if (result.ok) throw new Error("Expected original physical failure");
+      expect(failsClose ? result.error.cleanupPrimary : result.error).toBe(
+        primary,
+      );
+      denied = false;
+      await resources.close();
+      expect(result.error.cleanupIncomplete).toBe(false);
+      expect(failsClose ? result.error.cleanupPrimary : result.error).toBe(
+        primary,
+      );
+    } finally {
+      denied = false;
+      await resources.close();
+    }
+  },
+);
diff --git a/src/process/ArtifactAnalysisResources.ts b/src/process/ArtifactAnalysisResources.ts
index 8afad44e9..ad1277fc5 100644
--- a/src/process/ArtifactAnalysisResources.ts
+++ b/src/process/ArtifactAnalysisResources.ts
@@ -1,3 +1,4 @@
+import { artifactFileCancellationCause } from "../artifacts/ArtifactFileOperation.js";
 import { ArtifactReaderFailure } from "../artifacts/ArtifactReader.js";
 import { ArtifactResourceScope } from "../artifacts/ArtifactResourceScope.js";
 import { readStableArtifact } from "../artifacts/readStableArtifact.js";
@@ -75,7 +76,13 @@ export class ArtifactAnalysisResources {
     operation = this.operation,
   ): Promise<Result<T, AnalysisError>> {
     if (this.#closed || signal?.aborted)
-      return Promise.resolve(err(new AnalysisCancelledError(operation)));
+      return Promise.resolve(
+        err(
+          new AnalysisCancelledError(operation, {
+            cause: signal?.aborted ? signal.reason : undefined,
+          }),
+        ),
+      );
     if (this.#busy)
       return Promise.resolve(
         err(
@@ -95,6 +102,12 @@ export class ArtifactAnalysisResources {
           // this scope has drained it and admits acquisition for the new request.
           this.#artifacts.operation = operation;
           this.#resolveCleanupFailures();
+          if (signal?.aborted)
+            return Promise.resolve(
+              err(
+                new AnalysisCancelledError(operation, { cause: signal.reason }),
+              ),
+            );
           return work();
         }),
       )
@@ -221,7 +234,7 @@ export class ArtifactAnalysisResources {
     cause: unknown,
     capturedOutput?: AnalysisCapturedOutput,
     operation = this.operation,
-  ): ProviderCleanupError {
+  ): AnalysisError {
     const failure = new ProviderCleanupError(
       this.providerId,
       observation.resources,
@@ -234,6 +247,21 @@ export class ArtifactAnalysisResources {
       { operation, cause },
     );
     this.#trackCleanupFailure(failure, [], failure, true);
+    if (
+      cause instanceof ArtifactReaderFailure &&
+      cause.reason === "cancelled"
+    ) {
+      const primary = new AnalysisCancelledError(operation, {
+        cause: artifactFileCancellationCause(cause),
+        ...(capturedOutput === undefined ? {} : { capturedOutput }),
+        partialObservation: cause.partialObservation,
+      });
+      return analysisErrorWithCleanupFailure(
+        primary,
+        failure,
+        operation,
+      ).bindCleanupDependencies([primary, failure]);
+    }
     return failure;
   }
 
@@ -261,7 +289,11 @@ export class ArtifactAnalysisResources {
       ...(capturedOutput === undefined ? {} : { capturedOutput }),
     };
     if (cause.reason === "cancelled")
-      return new AnalysisCancelledError(operation, detail);
+      return new AnalysisCancelledError(operation, {
+        ...detail,
+        cause:
+          cause.cancellation === undefined ? cause : cause.cancellation.reason,
+      });
     if (cause.reason === "timeout")
       return new AnalysisTimeoutError(
         operation,
@@ -295,14 +327,30 @@ export class ArtifactAnalysisResources {
     result: Result<T, AnalysisError>,
     observation: (value: T) => AnalysisPartialObservation,
     operation = this.operation,
+    signal?: AbortSignal,
   ): Promise<Result<T, AnalysisError>> {
     try {
       await this.release();
+      if (result.ok && signal?.aborted)
+        return err(
+          new AnalysisCancelledError(operation, {
+            cause: signal.reason,
+            partialObservation: observation(result.value),
+          }),
+        );
       return result;
     } catch (cause: unknown) {
       const partialObservation = result.ok
         ? observation(result.value)
         : result.error.partialObservation;
+      const primaryFailure = !result.ok
+        ? result.error
+        : signal?.aborted
+          ? new AnalysisCancelledError(operation, {
+              cause: signal.reason,
+              partialObservation,
+            })
+          : undefined;
       const cleanupDiagnostics =
         cause instanceof ProviderCleanupError ? cause.diagnostics : undefined;
       const cleanupFailure = new ProviderCleanupError(
@@ -321,21 +369,27 @@ export class ArtifactAnalysisResources {
             cause instanceof ProviderCleanupError
               ? String(cleanupDiagnostics?.reason ?? cause.message)
               : String(cause),
-          previous_error: result.ok ? null : projectAnalysisError(result.error),
+          previous_error:
+            primaryFailure === undefined
+              ? null
+              : projectAnalysisError(primaryFailure),
         },
         {
           operation,
-          cause: result.ok
-            ? cause
-            : new AggregateError(
-                [result.error, cause],
-                "Analysis failed and artifact cleanup remains incomplete.",
-                { cause: result.error },
-              ),
+          ...(primaryFailure === undefined
+            ? {}
+            : { cleanupPrimary: primaryFailure }),
+          cause:
+            primaryFailure === undefined
+              ? cause
+              : new AggregateError(
+                  [primaryFailure, cause],
+                  "Analysis failed and artifact cleanup remains incomplete.",
+                  { cause: primaryFailure },
+                ),
           ...(partialObservation === undefined ? {} : { partialObservation }),
         },
       );
-      const primaryFailure = result.ok ? undefined : result.error;
       this.#trackCleanupFailure(
         cleanupFailure,
         [...this.#pending.keys()],
@@ -408,6 +462,10 @@ export class ArtifactAnalysisResources {
     if (cause instanceof AnalysisError) return cause;
     if (cause instanceof ArtifactReaderFailure && cause.cleanup !== undefined)
       return this.cleanupFailure(cause.cleanup, cause, undefined, operation);
+    if (cause instanceof ArtifactReaderFailure && cause.reason === "cancelled")
+      return new AnalysisCancelledError(operation, {
+        cause: artifactFileCancellationCause(cause),
+      });
     return new ProviderAdapterError(this.providerId, operation, {
       cause,
       diagnostics: { stage: "artifact-resources", reason: String(cause) },