diff --git a/CHANGELOG.md b/CHANGELOG.md
index d283cb74fd4..dc238731349 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Plugins/Config schema: support legacy plugin schemas without `toJSONSchema()` by falling back to permissive object schema generation. (#24933) Thanks @pandego.
 - Cron/Isolated sessions: use full prompt mode for isolated cron runs so skills/extensions are available during cron execution. (#24944)
 - Discord/Reasoning: suppress reasoning/thinking-only payload blocks from Discord delivery output. (#24969)
 - Sessions/Reasoning: persist `reasoningLevel: "off"` explicitly instead of deleting it so session overrides survive patch/update flows. (#24406, #24559)
diff --git a/src/channels/plugins/config-schema.test.ts b/src/channels/plugins/config-schema.test.ts
index 2abd11e53af..93d65d728a5 100644
--- a/src/channels/plugins/config-schema.test.ts
+++ b/src/channels/plugins/config-schema.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, it } from "vitest";
+import { describe, expect, it, vi } from "vitest";
 import { z } from "zod";
 import { buildChannelConfigSchema } from "./config-schema.js";
 
@@ -14,4 +14,23 @@ describe("buildChannelConfigSchema", () => {
     const result = buildChannelConfigSchema(legacySchema);
     expect(result.schema).toEqual({ type: "object", additionalProperties: true });
   });
+
+  it("passes draft-07 compatibility options to toJSONSchema", () => {
+    const toJSONSchema = vi.fn(() => ({
+      type: "object",
+      properties: { enabled: { type: "boolean" } },
+    }));
+    const schema = { toJSONSchema } as unknown as Parameters<typeof buildChannelConfigSchema>[0];
+
+    const result = buildChannelConfigSchema(schema);
+
+    expect(toJSONSchema).toHaveBeenCalledWith({
+      target: "draft-07",
+      unrepresentable: "any",
+    });
+    expect(result.schema).toEqual({
+      type: "object",
+      properties: { enabled: { type: "boolean" } },
+    });
+  });
 });