diff --git a/docs/cli/config.md b/docs/cli/config.md
index 2ead3b799aa..7b93fd6a80b 100644
--- a/docs/cli/config.md
+++ b/docs/cli/config.md
@@ -334,7 +334,7 @@ openclaw config set channels.discord.token \
     - `checks.resolvabilityComplete`: whether resolvability checks ran to completion (false when exec refs are skipped)
     - `refsChecked`: number of refs actually resolved during dry-run
     - `skippedExecRefs`: number of exec refs skipped because `--allow-exec` was not set
-    - `errors`: structured schema/resolvability failures when `ok=false`
+    - `errors`: structured missing-path, schema, or resolvability failures when `ok=false`
 
   </Accordion>
 </AccordionGroup>
@@ -346,7 +346,7 @@ openclaw config set channels.discord.token \
   ok: boolean,
   operations: number,
   configPath: string,
-  inputModes: ["value" | "json" | "builder", ...],
+  inputModes: ["value" | "json" | "builder" | "unset", ...],
   checks: {
     schema: boolean,
     resolvability: boolean,
@@ -356,7 +356,7 @@ openclaw config set channels.discord.token \
   skippedExecRefs: number,
   errors?: [
     {
-      kind: "schema" | "resolvability",
+      kind: "missing-path" | "schema" | "resolvability",
       message: string,
       ref?: string, // present for resolvability errors
     },
diff --git a/src/cli/config-cli.test.ts b/src/cli/config-cli.test.ts
index ded78b6c835..41556f10027 100644
--- a/src/cli/config-cli.test.ts
+++ b/src/cli/config-cli.test.ts
@@ -2694,6 +2694,181 @@ describe("config cli", () => {
         unsetPaths: [["channels", "discord", "guilds", "123"]],
       });
     });
+
+    it("dry-runs an unset without writing the config file", async () => {
+      const resolved: OpenClawConfig = {
+        agents: { list: [{ id: "main" }] },
+        gateway: { port: 18789 },
+        tools: {
+          profile: "coding",
+          alsoAllow: ["agents_list"],
+        },
+      };
+      setSnapshot(resolved, resolved);
+      setSnapshot(resolved, resolved);
+
+      await runConfigCommand(["config", "unset", "tools.alsoAllow", "--dry-run"]);
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      expectLogIncludes("Dry run successful: 1 update(s) validated against /tmp/openclaw.json.");
+      expect(mockReadConfigFileSnapshot).toHaveBeenCalledTimes(2);
+    });
+
+    it("prints JSON for config unset dry-run", async () => {
+      const resolved: OpenClawConfig = {
+        agents: { list: [{ id: "main" }] },
+        gateway: { port: 18789 },
+        tools: {
+          profile: "coding",
+          alsoAllow: ["agents_list"],
+        },
+      };
+      setSnapshot(resolved, resolved);
+      setSnapshot(resolved, resolved);
+
+      await runConfigCommand(["config", "unset", "tools.alsoAllow", "--dry-run", "--json"]);
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      expect(parseLastLogPayload()).toMatchObject({
+        ok: true,
+        operations: 1,
+        inputModes: ["unset"],
+        checks: {
+          schema: true,
+          resolvability: true,
+          resolvabilityComplete: true,
+        },
+      });
+    });
+
+    it("prints structured JSON when unset dry-run misses a path", async () => {
+      const resolved: OpenClawConfig = {
+        gateway: { port: 18789 },
+        tools: {
+          profile: "coding",
+        },
+      };
+      setSnapshot(resolved, resolved);
+
+      await expect(
+        runConfigCommand(["config", "unset", "tools.alsoAllow", "--dry-run", "--json"]),
+      ).rejects.toThrow("__exit__:1");
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      expect(mockError).not.toHaveBeenCalled();
+      const payload = parseLastLogPayload() as {
+        ok: boolean;
+        inputModes: string[];
+        checks: { schema: boolean; resolvability: boolean; resolvabilityComplete: boolean };
+        errors?: Array<{ kind: string; message: string }>;
+      };
+      expect(payload.ok).toBe(false);
+      expect(payload.inputModes).toEqual(["unset"]);
+      expect(payload.checks).toEqual({
+        schema: false,
+        resolvability: false,
+        resolvabilityComplete: false,
+      });
+      expect(payload.errors).toEqual([
+        {
+          kind: "missing-path",
+          message: "Config path not found: tools.alsoAllow. Nothing was changed.",
+        },
+      ]);
+    });
+
+    it("validates existing refs when unset dry-run removes all secret providers", async () => {
+      const resolved: OpenClawConfig = {
+        gateway: { port: 18789 },
+        secrets: {
+          providers: {
+            vaultfile: { source: "file", path: "/tmp/secrets.json", mode: "json" },
+          },
+        },
+        tools: {
+          web: {
+            search: {
+              enabled: true,
+              apiKey: {
+                source: "file",
+                provider: "vaultfile",
+                id: "/providers/search/apiKey",
+              },
+            },
+          },
+        } as never,
+      };
+      setSnapshot(resolved, resolved);
+      setSnapshot(resolved, resolved);
+      mockResolveSecretRefValue.mockRejectedValueOnce(new Error("provider removed"));
+
+      await expect(
+        runConfigCommand(["config", "unset", "secrets.providers", "--dry-run"]),
+      ).rejects.toThrow("__exit__:1");
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      const [secretRef] = requireResolveSecretRefCall(0);
+      const secretRefRecord = requireRecord(secretRef, "existing SecretRef");
+      expect(secretRefRecord.provider).toBe("vaultfile");
+      expect(secretRefRecord.id).toBe("/providers/search/apiKey");
+      expectErrorIncludes("Dry run failed: 1 SecretRef assignment(s) could not be resolved.");
+      expectErrorIncludes("provider removed");
+    });
+
+    it("validates existing refs when unset dry-run removes secret defaults", async () => {
+      const resolved: OpenClawConfig = {
+        gateway: { port: 18789 },
+        secrets: {
+          defaults: {
+            env: "vaultenv",
+          },
+          providers: {
+            default: { source: "env" },
+            vaultenv: { source: "env" },
+          },
+        },
+        tools: {
+          web: {
+            search: {
+              enabled: true,
+              apiKey: "${WEB_SEARCH_API_KEY}",
+            },
+          },
+        } as never,
+      } as OpenClawConfig;
+      setSnapshot(resolved, resolved);
+      setSnapshot(resolved, resolved);
+
+      await runConfigCommand(["config", "unset", "secrets.defaults", "--dry-run"]);
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      const [secretRef] = requireResolveSecretRefCall(0);
+      const secretRefRecord = requireRecord(secretRef, "defaulted SecretRef");
+      expect(secretRefRecord).toMatchObject({
+        source: "env",
+        provider: "default",
+        id: "WEB_SEARCH_API_KEY",
+      });
+      expectLogIncludes("Dry run successful: 1 update(s) validated against /tmp/openclaw.json.");
+    });
+
+    it("rejects config unset --json without --dry-run", async () => {
+      await expect(
+        runConfigCommand(["config", "unset", "tools.alsoAllow", "--json"]),
+      ).rejects.toThrow("__exit__:1");
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      expectErrorIncludes("--json can only be used with --dry-run.");
+    });
+
+    it("rejects config unset --allow-exec without --dry-run", async () => {
+      await expect(
+        runConfigCommand(["config", "unset", "tools.alsoAllow", "--allow-exec"]),
+      ).rejects.toThrow("__exit__:1");
+
+      expect(mockWriteConfigFile).not.toHaveBeenCalled();
+      expectErrorIncludes("--allow-exec can only be used with --dry-run.");
+    });
   });
 
   describe("config file", () => {
diff --git a/src/cli/config-cli.ts b/src/cli/config-cli.ts
index df9983611ca..a0949c8abb6 100644
--- a/src/cli/config-cli.ts
+++ b/src/cli/config-cli.ts
@@ -77,6 +77,7 @@ type ConfigSetOperation = {
   value: unknown;
   mutation?: "set" | "merge" | "replace" | "delete";
   schemaValidated?: boolean;
+  touchesAllSecretRefs?: boolean;
   touchedSecretTargetPath?: string;
   touchedProviderAlias?: string;
   assignedRef?: SecretRef;
@@ -89,6 +90,11 @@ type ConfigPatchOptions = {
   json?: boolean | undefined;
   replacePath?: string[] | undefined;
 };
+type ConfigUnsetOptions = {
+  dryRun?: boolean | undefined;
+  allowExec?: boolean | undefined;
+  json?: boolean | undefined;
+};
 type ConfigMutationOptions = {
   dryRun?: boolean | undefined;
   allowExec?: boolean | undefined;
@@ -1029,6 +1035,20 @@ function parseProviderAliasFromTargetPath(path: PathSegment[]): string | null {
   return null;
 }
 
+function touchesSecretProviderCollection(path: PathSegment[]): boolean {
+  return (
+    (path.length === 1 && path[0] === "secrets") ||
+    (path.length === 2 && path[0] === "secrets" && path[1] === "providers")
+  );
+}
+
+function touchesSecretDefaults(path: PathSegment[]): boolean {
+  return (
+    (path.length === 1 && path[0] === "secrets") ||
+    (path.length === 2 && path[0] === "secrets" && path[1] === "defaults")
+  );
+}
+
 function buildValueAssignmentOperation(params: {
   requestedPath: PathSegment[];
   value: unknown;
@@ -1153,6 +1173,22 @@ function buildDeleteOperation(path: PathSegment[]): ConfigSetOperation {
   };
 }
 
+function buildUnsetOperation(path: PathSegment[]): ConfigSetOperation {
+  const resolved = resolveConfigSecretTargetByPath(path);
+  const providerAlias = parseProviderAliasFromTargetPath(path);
+  const touchesAllSecretRefs = touchesSecretProviderCollection(path) || touchesSecretDefaults(path);
+  return {
+    inputMode: "unset",
+    requestedPath: path,
+    setPath: path,
+    value: undefined,
+    mutation: "delete",
+    ...(touchesAllSecretRefs ? { touchesAllSecretRefs: true } : {}),
+    ...(resolved ? { touchedSecretTargetPath: toDotPath(resolved.pathSegments) } : {}),
+    ...(providerAlias ? { touchedProviderAlias: providerAlias } : {}),
+  };
+}
+
 function buildApplyValueOperation(params: {
   path: PathSegment[];
   value: unknown;
@@ -1357,6 +1393,7 @@ function collectDryRunRefs(params: {
   const refsByKey = new Map<string, SecretRef>();
   const targetPaths = new Set<string>();
   const providerAliases = new Set<string>();
+  let includeAllDiscoveredRefs = false;
 
   for (const operation of params.operations) {
     if (operation.assignedRef) {
@@ -1371,9 +1408,10 @@ function collectDryRunRefs(params: {
     if (operation.touchedProviderAlias) {
       providerAliases.add(operation.touchedProviderAlias);
     }
+    includeAllDiscoveredRefs ||= operation.touchesAllSecretRefs === true;
   }
 
-  if (targetPaths.size === 0 && providerAliases.size === 0) {
+  if (!includeAllDiscoveredRefs && targetPaths.size === 0 && providerAliases.size === 0) {
     return [...refsByKey.values()];
   }
 
@@ -1387,7 +1425,7 @@ function collectDryRunRefs(params: {
     if (!ref) {
       continue;
     }
-    if (targetPaths.has(target.path) || providerAliases.has(ref.provider)) {
+    if (includeAllDiscoveredRefs || targetPaths.has(target.path) || providerAliases.has(ref.provider)) {
       refsByKey.set(secretRefKey(ref), ref);
     }
   }
@@ -1624,9 +1662,13 @@ function formatDryRunFailureMessage(params: {
   skippedExecRefs: number;
 }): string {
   const { errors, skippedExecRefs } = params;
+  const missingPathErrors = errors.filter((error) => error.kind === "missing-path");
   const schemaErrors = errors.filter((error) => error.kind === "schema");
   const resolveErrors = errors.filter((error) => error.kind === "resolvability");
   const lines: string[] = [];
+  if (missingPathErrors.length > 0) {
+    lines.push(...missingPathErrors.map((error) => error.message));
+  }
   if (schemaErrors.length > 0) {
     lines.push("Dry run failed: config schema validation failed.");
     lines.push(...schemaErrors.map((error) => `- ${error.message}`));
@@ -1716,11 +1758,14 @@ async function runConfigOperations(params: {
   if (options.dryRun) {
     const hasJsonMode = operations.some((operation) => operation.inputMode === "json");
     const hasBuilderMode = operations.some((operation) => operation.inputMode === "builder");
+    const hasUnsetMode = operations.some((operation) => operation.inputMode === "unset");
     const requiresFullSchemaValidation = operations.some(
-      (operation) => operation.inputMode === "json" && operation.schemaValidated !== true,
+      (operation) =>
+        operation.inputMode === "unset" ||
+        (operation.inputMode === "json" && operation.schemaValidated !== true),
     );
     const refs =
-      hasJsonMode || hasBuilderMode
+      hasJsonMode || hasBuilderMode || hasUnsetMode
         ? collectDryRunRefs({
             config: nextConfig,
             operations,
@@ -1746,7 +1791,7 @@ async function runConfigOperations(params: {
         }),
       );
     }
-    if (hasJsonMode || hasBuilderMode) {
+    if (hasJsonMode || hasBuilderMode || hasUnsetMode) {
       errors.push(
         ...collectDryRunStaticErrorsForSkippedExecRefs({
           refs: selectedDryRunRefs.skippedExecRefs,
@@ -1768,9 +1813,10 @@ async function runConfigOperations(params: {
       inputModes: [...new Set(operations.map((operation) => operation.inputMode))],
       checks: {
         schema: requiresFullSchemaValidation || policyIssueLines.length > 0,
-        resolvability: hasJsonMode || hasBuilderMode,
+        resolvability: hasJsonMode || hasBuilderMode || hasUnsetMode,
         resolvabilityComplete:
-          (hasJsonMode || hasBuilderMode) && selectedDryRunRefs.skippedExecRefs.length === 0,
+          (hasJsonMode || hasBuilderMode || hasUnsetMode) &&
+          selectedDryRunRefs.skippedExecRefs.length === 0,
       },
       refsChecked: selectedDryRunRefs.refsToResolve.length,
       skippedExecRefs: selectedDryRunRefs.skippedExecRefs.length,
@@ -1986,9 +2032,20 @@ export async function runConfigGet(opts: { path: string; json?: boolean; runtime
   }
 }
 
-export async function runConfigUnset(opts: { path: string; runtime?: RuntimeEnv }) {
+export async function runConfigUnset(opts: {
+  path: string;
+  cliOptions?: ConfigUnsetOptions;
+  runtime?: RuntimeEnv;
+}) {
   const runtime = opts.runtime ?? defaultRuntime;
+  const cliOptions = opts.cliOptions ?? {};
   try {
+    if (cliOptions.allowExec && !cliOptions.dryRun) {
+      throw new Error("--allow-exec can only be used with --dry-run.");
+    }
+    if (cliOptions.json && !cliOptions.dryRun) {
+      throw new Error("--json can only be used with --dry-run.");
+    }
     const parsedPath = parseRequiredPath(opts.path);
     const autoManagedUnsetTargets = findAutoManagedMetaUnsetTargets(parsedPath);
     if (autoManagedUnsetTargets.length > 0) {
@@ -2001,6 +2058,27 @@ export async function runConfigUnset(opts: { path: string; runtime?: RuntimeEnv
     const next = structuredClone(snapshot.resolved) as Record<string, unknown>;
     const unsetResult = unsetAtPath(next, parsedPath);
     if (!unsetResult.removed) {
+      if (cliOptions.dryRun && cliOptions.json) {
+        throw new ConfigSetDryRunValidationError({
+          ok: false,
+          operations: 1,
+          configPath: shortenHomePath(snapshot.path),
+          inputModes: ["unset"],
+          checks: {
+            schema: false,
+            resolvability: false,
+            resolvabilityComplete: false,
+          },
+          refsChecked: 0,
+          skippedExecRefs: 0,
+          errors: [
+            {
+              kind: "missing-path",
+              message: `Config path not found: ${opts.path}. Nothing was changed.`,
+            },
+          ],
+        });
+      }
       runtime.error(
         danger(
           `Config path not found: ${opts.path}. Nothing was changed. Run ${formatCliCommand("openclaw config get <path>")} first if you are unsure of the path.`,
@@ -2009,6 +2087,15 @@ export async function runConfigUnset(opts: { path: string; runtime?: RuntimeEnv
       runtime.exit(1);
       return;
     }
+    if (cliOptions.dryRun) {
+      await runConfigOperations({
+        runtime,
+        operations: [buildUnsetOperation(parsedPath)],
+        options: cliOptions,
+        successMode: "set",
+      });
+      return;
+    }
     await replaceConfigFile({
       nextConfig: next,
       ...(snapshot.hash !== undefined ? { baseHash: snapshot.hash } : {}),
@@ -2018,8 +2105,7 @@ export async function runConfigUnset(opts: { path: string; runtime?: RuntimeEnv
     });
     runtime.log(info(`Removed ${opts.path}. Restart the gateway to apply.`));
   } catch (err) {
-    runtime.error(danger(String(err)));
-    runtime.exit(1);
+    handleConfigMutationError({ err, runtime, options: cliOptions });
   }
 }
 
@@ -2258,8 +2344,11 @@ export function registerConfigCli(program: Command) {
     .command("unset")
     .description("Remove a config value by dot path")
     .argument("<path>", "Config path (dot or bracket notation)")
-    .action(async (path: string) => {
-      await runConfigUnset({ path });
+    .option("--dry-run", "validate the removal without writing the config file")
+    .option("--allow-exec", "allow exec SecretRef providers during --dry-run")
+    .option("--json", "print dry-run result as JSON")
+    .action(async (path: string, options: ConfigUnsetOptions) => {
+      await runConfigUnset({ path, cliOptions: options });
     });
 
   cmd
diff --git a/src/cli/config-set-dryrun.ts b/src/cli/config-set-dryrun.ts
index d121f25eab1..dfc4160716d 100644
--- a/src/cli/config-set-dryrun.ts
+++ b/src/cli/config-set-dryrun.ts
@@ -1,7 +1,7 @@
-export type ConfigSetDryRunInputMode = "value" | "json" | "builder";
+export type ConfigSetDryRunInputMode = "value" | "json" | "builder" | "unset";
 
 export type ConfigSetDryRunError = {
-  kind: "schema" | "resolvability";
+  kind: "missing-path" | "schema" | "resolvability";
   message: string;
   ref?: string;
 };
diff --git a/src/cli/program/route-args.test.ts b/src/cli/program/route-args.test.ts
index 85e4bbc511d..ab2bb6ab248 100644
--- a/src/cli/program/route-args.test.ts
+++ b/src/cli/program/route-args.test.ts
@@ -149,6 +149,30 @@ describe("route-args", () => {
       ]),
     ).toEqual({
       path: "update.channel",
+      cliOptions: {
+        dryRun: false,
+        allowExec: false,
+        json: false,
+      },
+    });
+    expect(
+      parseConfigUnsetRouteArgs([
+        "node",
+        "openclaw",
+        "config",
+        "unset",
+        "--dry-run",
+        "--json",
+        "--allow-exec",
+        "update.channel",
+      ]),
+    ).toEqual({
+      path: "update.channel",
+      cliOptions: {
+        dryRun: true,
+        allowExec: true,
+        json: true,
+      },
     });
     expect(parseConfigGetRouteArgs(["node", "openclaw", "config", "get", "--json"])).toBeNull();
   });
diff --git a/src/cli/program/route-args.ts b/src/cli/program/route-args.ts
index 9132896e9db..aedd2903757 100644
--- a/src/cli/program/route-args.ts
+++ b/src/cli/program/route-args.ts
@@ -182,11 +182,19 @@ export function parseConfigGetRouteArgs(argv: string[]) {
 export function parseConfigUnsetRouteArgs(argv: string[]) {
   const path = parseSinglePositional(argv, {
     commandPath: ["config", "unset"],
+    booleanFlags: ["--dry-run", "--allow-exec", "--json"],
   });
   if (!path) {
     return null;
   }
-  return { path };
+  return {
+    path,
+    cliOptions: {
+      dryRun: hasFlag(argv, "--dry-run"),
+      allowExec: hasFlag(argv, "--allow-exec"),
+      json: hasFlag(argv, "--json"),
+    },
+  };
 }
 
 export function parseModelsListRouteArgs(argv: string[]) {
diff --git a/src/cli/program/routes.test.ts b/src/cli/program/routes.test.ts
index 065f4f30a12..804dff02d17 100644
--- a/src/cli/program/routes.test.ts
+++ b/src/cli/program/routes.test.ts
@@ -344,7 +344,14 @@ describe("program routes", () => {
     await expect(
       route.run(["node", "openclaw", "--profile", "work", "config", "unset", "update.channel"]),
     ).resolves.toBe(true);
-    expect(runConfigUnsetMock).toHaveBeenCalledWith({ path: "update.channel" });
+    expect(runConfigUnsetMock).toHaveBeenCalledWith({
+      path: "update.channel",
+      cliOptions: {
+        dryRun: false,
+        allowExec: false,
+        json: false,
+      },
+    });
   });
 
   it("passes config get path when root value options appear after subcommand", async () => {
@@ -369,7 +376,38 @@ describe("program routes", () => {
     await expect(
       route.run(["node", "openclaw", "config", "unset", "--profile", "work", "update.channel"]),
     ).resolves.toBe(true);
-    expect(runConfigUnsetMock).toHaveBeenCalledWith({ path: "update.channel" });
+    expect(runConfigUnsetMock).toHaveBeenCalledWith({
+      path: "update.channel",
+      cliOptions: {
+        dryRun: false,
+        allowExec: false,
+        json: false,
+      },
+    });
+  });
+
+  it("passes config unset dry-run options", async () => {
+    const route = expectRoute(["config", "unset"]);
+    await expect(
+      route.run([
+        "node",
+        "openclaw",
+        "config",
+        "unset",
+        "--dry-run",
+        "--json",
+        "--allow-exec",
+        "update.channel",
+      ]),
+    ).resolves.toBe(true);
+    expect(runConfigUnsetMock).toHaveBeenCalledWith({
+      path: "update.channel",
+      cliOptions: {
+        dryRun: true,
+        allowExec: true,
+        json: true,
+      },
+    });
   });
 
   it("returns false for config get route when unknown option appears", async () => {