diff --git a/CHANGELOG.md b/CHANGELOG.md
index d26a9f23559..e9a540b531b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ Docs: https://docs.openclaw.ai
 - Cron/delivery: treat explicit `delivery.mode: "none"` runs as not requested even if the runner reports `delivered: false`, so no-delivery cron jobs no longer persist false delivery failures or errors. (#69285) Thanks @matsuri1987.
 - Plugins/install: repair active and default-enabled bundled plugin runtime dependencies before import in packaged installs, so bundled Discord, WhatsApp, Slack, Telegram, and provider plugins work without putting their dependency trees in core.
 - BlueBubbles: raise the outbound `/api/v1/message/text` send timeout default from 10s to 30s, and add a configurable `channels.bluebubbles.sendTimeoutMs` (also per-account) so macOS 26 setups where Private API iMessage sends stall for 60+ seconds no longer silently lose messages at the 10s abort. Probes, chat lookups, and health checks keep the shorter 10s default. Fixes #67486. (#69193) Thanks @omarshahine.
+- Context engine/plugins: stop rejecting third-party context engines whose `info.id` differs from the registered plugin slot id. The strict-match contract added in 2026.4.14 broke `lossless-claw` and other plugins whose internal engine id does not equal the slot id they are registered under, producing repeated `info.id must match registered id` lane failures on every turn. Fixes #66601. (#66678) Thanks @GodsBoy.
 
 ## 2026.4.20
 
diff --git a/src/context-engine/context-engine.test.ts b/src/context-engine/context-engine.test.ts
index 239ccd7b334..bd1f9d44322 100644
--- a/src/context-engine/context-engine.test.ts
+++ b/src/context-engine/context-engine.test.ts
@@ -796,15 +796,20 @@ describe("Invalid engine fallback", () => {
     expect(console.error).toHaveBeenCalledWith(expect.stringContaining("missing info"));
   });
 
-  it("falls back to default engine when info.id mismatches the registered id", async () => {
-    const engineId = `mismatched-info-id-${Date.now().toString(36)}`;
+  it("accepts resolved engines whose info.id differs from the registered slot id (#66601)", async () => {
+    // Regression for openclaw/openclaw#66601: third-party plugins like
+    // lossless-claw register under an external slot id ("lossless-claw") but
+    // the ContextEngine they return uses the plugin's own internal id
+    // (e.g. "lcm"). That id is metadata, not the lookup key.
+    const engineId = `plugin-slot-${Date.now().toString(36)}`;
+    const internalInfoId = "lcm";
     registerContextEngine(
       engineId,
       () =>
         ({
-          info: { id: "legacy", name: "Broken Engine" },
+          info: { id: internalInfoId, name: "Lossless Context Manager", version: "0.5.2" },
           async ingest() {
-            return { ingested: false };
+            return { ingested: true };
           },
           async assemble({ messages }: { messages: AgentMessage[] }) {
             return { messages, estimatedTokens: 0 };
@@ -816,10 +821,15 @@ describe("Invalid engine fallback", () => {
     );
 
     const engine = await resolveContextEngine(configWithSlot(engineId));
-    expect(engine.info.id).toBe("legacy");
-    expect(console.error).toHaveBeenCalledWith(
-      expect.stringContaining(`info.id must match registered id "${engineId}"`),
-    );
+    // The engine's own info.id is preserved; resolution does not overwrite it.
+    expect(engine.info.id).toBe(internalInfoId);
+    expect(engine.info.name).toBe("Lossless Context Manager");
+    // And the engine is usable through the wrapper.
+    const result = await engine.assemble({
+      sessionId: "s1",
+      messages: [makeMockMessage("user", "hello")],
+    });
+    expect(result.estimatedTokens).toBe(0);
   });
 
   it("falls back to default engine when resolved engine omits lifecycle methods", async () => {
diff --git a/src/context-engine/registry.ts b/src/context-engine/registry.ts
index 8d13fc0777e..4183b8a8a91 100644
--- a/src/context-engine/registry.ts
+++ b/src/context-engine/registry.ts
@@ -421,11 +421,13 @@ function describeResolvedContextEngineContractError(
     issues.push("missing info");
   } else {
     const infoRecord = info as Record<string, unknown>;
+    // Engines own their internal info.id; it is metadata, not a handle into the
+    // registry. The registered id (plugin slot id) and the engine's own id are
+    // allowed to differ, so we only require that info.id is a non-empty string
+    // for display/logging purposes and do not enforce equality with engineId.
     const infoId = typeof infoRecord.id === "string" ? infoRecord.id.trim() : "";
     if (!infoId) {
       issues.push("missing info.id");
-    } else if (infoId !== engineId) {
-      issues.push(`info.id must match registered id "${engineId}"`);
     }
     if (typeof infoRecord.name !== "string" || !infoRecord.name.trim()) {
       issues.push("missing info.name");