diff --git a/DiffPalReviewDevV1/task.json b/DiffPalReviewDevV1/task.json
index 25f866d..8cdbde2 100644
--- a/DiffPalReviewDevV1/task.json
+++ b/DiffPalReviewDevV1/task.json
@@ -10,7 +10,7 @@
   "version": {
     "Major": 1,
     "Minor": 6,
-    "Patch": 13
+    "Patch": 14
   },
   "minimumAgentVersion": "3.224.0",
   "instanceNameFormat": "DiffPal Review Dev",
@@ -28,7 +28,7 @@
       "type": "string",
       "label": "DiffPal version",
       "required": false,
-      "defaultValue": "0.1.34",
+      "defaultValue": "0.1.35",
       "helpMarkDown": "npm version or dist-tag for @diffpal/diffpal."
     },
     {
@@ -101,6 +101,14 @@
       "defaultValue": "false",
       "helpMarkDown": "Print resolved Azure PR context, base/head revisions, merge-base, and redacted CLI arguments before running DiffPal."
     },
+    {
+      "name": "debug",
+      "type": "boolean",
+      "label": "Enable DiffPal debug logging",
+      "required": false,
+      "defaultValue": "false",
+      "helpMarkDown": "Pass --debug to DiffPal so provider and runtime diagnostics are printed."
+    },
     {
       "name": "mode",
       "type": "string",
diff --git a/DiffPalReviewV1/task.json b/DiffPalReviewV1/task.json
index 7f576d9..e0d7c15 100644
--- a/DiffPalReviewV1/task.json
+++ b/DiffPalReviewV1/task.json
@@ -10,7 +10,7 @@
   "version": {
     "Major": 1,
     "Minor": 6,
-    "Patch": 13
+    "Patch": 14
   },
   "minimumAgentVersion": "3.224.0",
   "instanceNameFormat": "DiffPal Review",
@@ -28,7 +28,7 @@
       "type": "string",
       "label": "DiffPal version",
       "required": false,
-      "defaultValue": "0.1.34",
+      "defaultValue": "0.1.35",
       "helpMarkDown": "npm version or dist-tag for @diffpal/diffpal."
     },
     {
@@ -101,6 +101,14 @@
       "defaultValue": "false",
       "helpMarkDown": "Print resolved Azure PR context, base/head revisions, merge-base, and redacted CLI arguments before running DiffPal."
     },
+    {
+      "name": "debug",
+      "type": "boolean",
+      "label": "Enable DiffPal debug logging",
+      "required": false,
+      "defaultValue": "false",
+      "helpMarkDown": "Pass --debug to DiffPal so provider and runtime diagnostics are printed."
+    },
     {
       "name": "mode",
       "type": "string",
diff --git a/README.md b/README.md
index ea2a2e0..f32503e 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ VSIX packaging, and Marketplace release flow.
 
 The task installs `@diffpal/diffpal` by default and runs `diffpal review ado`.
 Bring the provider recipe you want to use; the Azure review flow stays the same.
-By default it installs `@diffpal/diffpal@0.1.34`, the tested CLI release paired
+By default it installs `@diffpal/diffpal@0.1.35`, the tested CLI release paired
 with this extension. Set `diffpalVersion` only when you need to override that
 default rollout.
 
@@ -38,6 +38,9 @@ defaults are ignored, and explicit invalid paths fail with task-level messages.
 Set `explain: true` to print the resolved PR id, branches, commits, merge-base,
 base/head, and redacted CLI arguments before the review starts.
 
+Set `debug: true` to pass `--debug` to DiffPal and enable provider/runtime
+diagnostics. This is separate from Azure `System.Debug`.
+
 With `feedback: balanced` or `feedback: inline`, DiffPal publishes Azure threads
 for all findings. Blocking findings stay active; non-blocking findings are
 published as closed immediately. Findings without canonical file/line mapping to
@@ -67,7 +70,7 @@ steps:
   - task: DiffPalReview@1
     displayName: DiffPal review
     inputs:
-      diffpalVersion: 0.1.34
+      diffpalVersion: 0.1.35
       profile: ci
       feedback: balanced
     env:
diff --git a/package-lock.json b/package-lock.json
index 1397d4c..8ed1f93 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@diffpal/azure-devops-extension",
-  "version": "0.1.35",
+  "version": "0.1.36",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@diffpal/azure-devops-extension",
-      "version": "0.1.35",
+      "version": "0.1.36",
       "license": "MIT",
       "dependencies": {
         "azure-pipelines-task-lib": "5.2.10"
diff --git a/package.json b/package.json
index 14fc11c..14c0c19 100644
--- a/package.json
+++ b/package.json
@@ -34,5 +34,5 @@
     "publish:prod": "npm run build \u0026\u0026 tfx extension publish --manifest-globs vss-extension.json",
     "smoke": "npm run build \u0026\u0026 node scripts/smoke-test.js"
   },
-  "version": "0.1.35"
+  "version": "0.1.36"
 }
diff --git a/scripts/smoke-test.js b/scripts/smoke-test.js
index 091a4e8..42d6695 100644
--- a/scripts/smoke-test.js
+++ b/scripts/smoke-test.js
@@ -155,10 +155,42 @@ function testDefaultPinnedVersionIsUsedWhenInputIsUnset() {
     PATH: `${fakeBin}${path.delimiter}${process.env.PATH || ""}`
   });
 
-  assert(read(npmArgv).includes("@diffpal/diffpal@0.1.34"), "default install did not request the pinned DiffPal version");
+  assert(read(npmArgv).includes("@diffpal/diffpal@0.1.35"), "default install did not request the pinned DiffPal version");
   assert(read(diffpalArgv).includes("review\nado"), "default pinned version did not run diffpal review ado");
 }
 
+function testDebugInputForwardsDebugFlag() {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "diffpal-ado-debug-"));
+  const diffpalArgv = path.join(dir, "diffpal-argv");
+  const customDiffPal = path.join(dir, "diffpal");
+  makeFakeDiffPal(customDiffPal, diffpalArgv);
+
+  runHandler("debug input", {
+    INPUT_INSTALL: "false",
+    INPUT_DIFFPALPATH: customDiffPal,
+    INPUT_DEBUG: "true"
+  });
+
+  const argv = read(diffpalArgv).split("\n").filter(Boolean);
+  assert(argv[0] === "--debug", `debug flag should be forwarded before subcommands, got ${JSON.stringify(argv)}`);
+  assert(argv.includes("review") && argv.includes("ado"), "debug input should still run diffpal review ado");
+}
+
+function testDebugDefaultsOff() {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "diffpal-ado-debug-default-"));
+  const diffpalArgv = path.join(dir, "diffpal-argv");
+  const customDiffPal = path.join(dir, "diffpal");
+  makeFakeDiffPal(customDiffPal, diffpalArgv);
+
+  runHandler("debug default off", {
+    INPUT_INSTALL: "false",
+    INPUT_DIFFPALPATH: customDiffPal
+  });
+
+  const argv = read(diffpalArgv).split("\n").filter(Boolean);
+  assert(!argv.includes("--debug"), `debug flag should be omitted by default, got ${JSON.stringify(argv)}`);
+}
+
 function testCustomPathSkipsInstall() {
   const dir = fs.mkdtempSync(path.join(os.tmpdir(), "diffpal-ado-custom-"));
   const fakeBin = path.join(dir, "bin");
@@ -565,6 +597,8 @@ function testNonGateFailureStaysGeneric() {
 
 testDefaultInstall();
 testDefaultPinnedVersionIsUsedWhenInputIsUnset();
+testDebugInputForwardsDebugFlag();
+testDebugDefaultsOff();
 testCustomPathSkipsInstall();
 testInstallDisabledUsesPath();
 testDefaultInstructionsFileDirectoryIsIgnored();
diff --git a/src/index.ts b/src/index.ts
index 1456665..74b7000 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -25,7 +25,7 @@ type ReviewRange = {
   pullRequest: PullRequestContext;
 };
 
-const DEFAULT_DIFFPAL_VERSION = "0.1.34";
+const DEFAULT_DIFFPAL_VERSION = "0.1.35";
 const TRANSIENT_REVIEW_EXIT_CODE = 3;
 const REVIEW_BLOCKED_EXIT_CODE = 10;
 
@@ -468,6 +468,9 @@ async function run(): Promise<void> {
   const gate = tl.getBoolInput("gate", false);
 
   const args: string[] = [];
+  if (boolInput("debug", false)) {
+    args.push("--debug");
+  }
   addOptional(args, "--config-dir", resolveConfigDir(input("configDir")));
   addOptional(args, "--profile", input("profile"));
   args.push("review", "ado", "--base", base, "--head", head, "--block-on", blockOn);
diff --git a/vss-extension.dev.json b/vss-extension.dev.json
index 5e67e0b..cf4936b 100644
--- a/vss-extension.dev.json
+++ b/vss-extension.dev.json
@@ -46,5 +46,5 @@
       "id": "Microsoft.VisualStudio.Services"
     }
   ],
-  "version": "0.1.35"
+  "version": "0.1.36"
 }
diff --git a/vss-extension.json b/vss-extension.json
index 46bee59..1352056 100644
--- a/vss-extension.json
+++ b/vss-extension.json
@@ -46,5 +46,5 @@
       "id": "Microsoft.VisualStudio.Services"
     }
   ],
-  "version": "0.1.35"
+  "version": "0.1.36"
 }