diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce64656b14d..d89a11c984c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ Docs: https://docs.openclaw.ai
 - Infra/tmp: tolerate concurrent temp-dir permission repairs by rechecking directories that another process already tightened, so parallel ACP subprocess startup no longer throws `Unsafe fallback OpenClaw temp dir`. Fixes #66867. Thanks @Kane808-AI and @jarvisz8.
 - Agents/compaction: add an opt-in `agents.defaults.compaction.midTurnPrecheck` mid-turn precheck that detects tool-loop context pressure and triggers compaction before the next tool call instead of waiting for end-of-turn. (#73499) Thanks @marchpure and @haoxingjun.
 - Gateway/approvals: let loopback token/password-backed native approval clients resolve exec approvals without attaching stale paired Gateway identities, while remote and unauthenticated approval clients keep normal device identity behavior. (#74472)
+- Gateway/config: include rejected validation paths in foreground and service last-known-good recovery logs plus main-agent notices, so unsupported direct edits explain which key caused restore instead of looking like silent reversion. Fixes #75060. Thanks @amknight.
 
 ## 2026.4.29
 
diff --git a/docs/gateway/troubleshooting.md b/docs/gateway/troubleshooting.md
index fd37d4f825b..6eb735132d5 100644
--- a/docs/gateway/troubleshooting.md
+++ b/docs/gateway/troubleshooting.md
@@ -341,6 +341,7 @@ Look for:
     - `.clobbered.*` exists → an external direct edit or startup read was restored.
     - `.rejected.*` exists → an OpenClaw-owned config write failed schema or clobber checks before commit.
     - `Config write rejected:` → the write tried to drop required shape, shrink the file sharply, or persist invalid config.
+    - `Rejected validation details:` → the recovery log or main-agent notice includes the schema path that caused the restore, such as `agents.defaults.execution` or `gateway.auth.password.source`.
     - `missing-meta-vs-last-good`, `gateway-mode-missing-vs-last-good`, or `size-drop-vs-last-good:*` → startup treated the current file as clobbered because it lost fields or size compared with the last-known-good backup.
     - `Config last-known-good promotion skipped` → the candidate contained redacted secret placeholders such as `***`.
 
diff --git a/src/cli/gateway-cli/run.option-collisions.test.ts b/src/cli/gateway-cli/run.option-collisions.test.ts
index ca8439c6ad0..e34c7ce2180 100644
--- a/src/cli/gateway-cli/run.option-collisions.test.ts
+++ b/src/cli/gateway-cli/run.option-collisions.test.ts
@@ -408,7 +408,7 @@ describe("gateway run option collisions", () => {
       },
     });
     expect(gatewayLogMessages).toContain(
-      "gateway: restored invalid effective config from last-known-good backup: /tmp/openclaw-test-missing-config.json",
+      "gateway: restored invalid effective config from last-known-good backup: /tmp/openclaw-test-missing-config.json; Rejected validation details: <root>: JSON5 parse failed.",
     );
     expect(startGatewayServer).toHaveBeenCalledWith(
       19170,
diff --git a/src/cli/gateway-cli/run.ts b/src/cli/gateway-cli/run.ts
index 9abd816090c..df9a7f5a3dc 100644
--- a/src/cli/gateway-cli/run.ts
+++ b/src/cli/gateway-cli/run.ts
@@ -8,6 +8,7 @@ import type {
   GatewayBindMode,
   GatewayTailscaleMode,
 } from "../../config/config.js";
+import { formatConfigIssueSummary } from "../../config/issue-format.js";
 import { CONFIG_PATH, resolveGatewayPort, resolveStateDir } from "../../config/paths.js";
 import type { OpenClawConfig } from "../../config/types.openclaw.js";
 import { hasConfiguredSecretInput } from "../../config/types.secrets.js";
@@ -290,8 +291,12 @@ async function readGatewayStartupConfig(params: {
       }),
     );
     if (recovered) {
+      const issueSummary = formatConfigIssueSummary([
+        ...invalidSnapshot.issues,
+        ...invalidSnapshot.legacyIssues,
+      ]);
       gatewayLog.warn(
-        `gateway: restored invalid effective config from last-known-good backup: ${invalidSnapshot.path}`,
+        `gateway: restored invalid effective config from last-known-good backup: ${invalidSnapshot.path}${issueSummary ? `; Rejected validation details: ${issueSummary}.` : ""}`,
       );
       try {
         const { writeRestartSentinel } = await import("../../infra/restart-sentinel.js");
diff --git a/src/cli/run-main.exit.test.ts b/src/cli/run-main.exit.test.ts
index 09bcf647d20..0a933f03270 100644
--- a/src/cli/run-main.exit.test.ts
+++ b/src/cli/run-main.exit.test.ts
@@ -177,7 +177,7 @@ vi.mock("./progress.js", () => ({
 }));
 
 vi.mock("../config/io.js", () => ({
-  getRuntimeConfig: loadConfigMock,
+  readBestEffortConfig: loadConfigMock,
 }));
 
 vi.mock("../infra/net/proxy/proxy-lifecycle.js", () => ({
diff --git a/src/cli/run-main.ts b/src/cli/run-main.ts
index d4a292e2ceb..f27c6b10c96 100644
--- a/src/cli/run-main.ts
+++ b/src/cli/run-main.ts
@@ -342,11 +342,11 @@ export async function runCli(argv: string[] = process.argv) {
     handle?.kill("SIGTERM");
   };
   if (shouldStartProxyForCli(normalizedArgv)) {
-    const [{ getRuntimeConfig }, { startProxy }] = await Promise.all([
+    const [{ readBestEffortConfig }, { startProxy }] = await Promise.all([
       import("../config/io.js"),
       import("../infra/net/proxy/proxy-lifecycle.js"),
     ]);
-    const config = getRuntimeConfig();
+    const config = await readBestEffortConfig();
     proxyHandle = await startProxy(config?.proxy ?? undefined);
   }
 
diff --git a/src/config/io.observe-recovery.test.ts b/src/config/io.observe-recovery.test.ts
index 49b22fa498d..21c5890b78a 100644
--- a/src/config/io.observe-recovery.test.ts
+++ b/src/config/io.observe-recovery.test.ts
@@ -341,6 +341,9 @@ describe("config observe recovery", () => {
       expect(warn).toHaveBeenCalledWith(
         expect.stringContaining("Config auto-restored from last-known-good:"),
       );
+      expect(warn).toHaveBeenCalledWith(
+        expect.stringContaining("Rejected validation details: gateway.mode: Expected string."),
+      );
       const observe = await readLastObserveEvent(auditPath);
       expect(observe?.restoredFromBackup).toBe(true);
       expect(observe?.restoredBackupPath).toBe(resolveLastKnownGoodConfigPath(configPath));
diff --git a/src/config/io.observe-recovery.ts b/src/config/io.observe-recovery.ts
index d844197efff..9d595bdc339 100644
--- a/src/config/io.observe-recovery.ts
+++ b/src/config/io.observe-recovery.ts
@@ -6,6 +6,7 @@ import {
   appendConfigAuditRecordSync,
   type ConfigObserveAuditRecord,
 } from "./io.audit.js";
+import { formatConfigIssueSummary } from "./issue-format.js";
 import { resolveStateDir } from "./paths.js";
 import {
   isPluginLocalInvalidConfigSnapshot,
@@ -1068,8 +1069,9 @@ export async function recoverConfigFromLastKnownGood(params: {
   });
   await deps.fs.promises.copyFile(lastGoodPath, snapshot.path);
   await deps.fs.promises.chmod?.(snapshot.path, 0o600).catch(() => {});
+  const issueSummary = formatConfigIssueSummary([...snapshot.issues, ...snapshot.legacyIssues]);
   deps.logger.warn(
-    `Config auto-restored from last-known-good: ${snapshot.path} (${params.reason})`,
+    `Config auto-restored from last-known-good: ${snapshot.path} (${params.reason})${issueSummary ? `; Rejected validation details: ${issueSummary}.` : ""}`,
   );
   await appendConfigAuditRecord(
     createConfigObserveAuditAppendParams(deps, {
diff --git a/src/config/issue-format.test.ts b/src/config/issue-format.test.ts
index fed82f99588..e142b64cd11 100644
--- a/src/config/issue-format.test.ts
+++ b/src/config/issue-format.test.ts
@@ -2,6 +2,7 @@ import { describe, expect, it } from "vitest";
 import {
   formatConfigIssueLine,
   formatConfigIssueLines,
+  formatConfigIssueSummary,
   normalizeConfigIssue,
   normalizeConfigIssuePath,
   normalizeConfigIssues,
@@ -47,6 +48,20 @@ describe("config issue format", () => {
     ).toBe("- gateway.\\nbind: bad\\r\\n\\tvalue");
   });
 
+  it("formats concise issue summaries", () => {
+    expect(formatConfigIssueSummary([])).toBeNull();
+    expect(
+      formatConfigIssueSummary(
+        [
+          { path: "", message: "root broken" },
+          { path: "gateway.auth.password.source", message: "Required" },
+          { path: "agents.defaults.execution", message: "Unrecognized key" },
+        ],
+        { maxIssues: 2 },
+      ),
+    ).toBe("<root>: root broken; gateway.auth.password.source: Required; and 1 more");
+  });
+
   it("normalizes issue metadata for machine output", () => {
     expect(
       normalizeConfigIssue({
diff --git a/src/config/issue-format.ts b/src/config/issue-format.ts
index 599e93986a2..0b81fbba4fa 100644
--- a/src/config/issue-format.ts
+++ b/src/config/issue-format.ts
@@ -1,7 +1,7 @@
 import { sanitizeTerminalText } from "../terminal/safe-text.js";
 import type { ConfigValidationIssue } from "./types.js";
 
-type ConfigIssueLineInput = {
+export type ConfigIssueLineInput = {
   path?: string | null;
   message: string;
 };
@@ -10,6 +10,10 @@ type ConfigIssueFormatOptions = {
   normalizeRoot?: boolean;
 };
 
+type ConfigIssueSummaryOptions = ConfigIssueFormatOptions & {
+  maxIssues?: number;
+};
+
 export function normalizeConfigIssuePath(path: string | null | undefined): string {
   if (typeof path !== "string") {
     return "<root>";
@@ -66,3 +70,23 @@ export function formatConfigIssueLines(
 ): string[] {
   return issues.map((issue) => formatConfigIssueLine(issue, marker, opts));
 }
+
+export function formatConfigIssueSummary(
+  issues: ReadonlyArray<ConfigIssueLineInput>,
+  opts: ConfigIssueSummaryOptions = {},
+): string | null {
+  if (issues.length === 0) {
+    return null;
+  }
+  const maxIssueCandidate = Math.floor(opts.maxIssues ?? 5);
+  const maxIssues = Number.isFinite(maxIssueCandidate) ? Math.max(1, maxIssueCandidate) : 5;
+  const visibleIssues = issues.slice(0, maxIssues);
+  const lines = formatConfigIssueLines(visibleIssues, "", {
+    normalizeRoot: opts.normalizeRoot ?? true,
+  });
+  const hiddenIssueCount = issues.length - visibleIssues.length;
+  if (hiddenIssueCount <= 0) {
+    return lines.join("; ");
+  }
+  return `${lines.join("; ")}; and ${hiddenIssueCount} more`;
+}
diff --git a/src/gateway/config-recovery-notice.test.ts b/src/gateway/config-recovery-notice.test.ts
index 1516aade740..edebba5eaed 100644
--- a/src/gateway/config-recovery-notice.test.ts
+++ b/src/gateway/config-recovery-notice.test.ts
@@ -26,6 +26,22 @@ describe("config recovery notice", () => {
     );
   });
 
+  it("includes rejected validation details when available", () => {
+    expect(
+      formatConfigRecoveryNotice({
+        phase: "startup",
+        reason: "startup-invalid-config",
+        configPath: "/home/test/.openclaw/openclaw.json",
+        issues: [
+          { path: "agents.defaults.execution", message: "Unrecognized key: execution" },
+          { path: "gateway.auth.password.source", message: "Required" },
+        ],
+      }),
+    ).toContain(
+      "Rejected validation details: agents.defaults.execution: Unrecognized key: execution; gateway.auth.password.source: Required.",
+    );
+  });
+
   it("queues the notice for the main agent session", () => {
     expect(
       enqueueConfigRecoveryNotice({
@@ -33,11 +49,14 @@ describe("config recovery notice", () => {
         phase: "reload",
         reason: "reload-invalid-config",
         configPath: "/home/test/.openclaw/openclaw.json",
+        issues: [{ path: "gateway.mode", message: "Expected string" }],
       }),
     ).toBe(true);
 
     expect(peekSystemEvents("agent:main:main")).toHaveLength(1);
-    expect(drainSystemEvents("agent:main:main")[0]).toContain(
+    const notice = drainSystemEvents("agent:main:main")[0];
+    expect(notice).toContain("gateway.mode: Expected string");
+    expect(notice).toContain(
       "Do not write openclaw.json again unless you validate the full config first.",
     );
   });
diff --git a/src/gateway/config-recovery-notice.ts b/src/gateway/config-recovery-notice.ts
index ad7e45b2059..74ab19a5582 100644
--- a/src/gateway/config-recovery-notice.ts
+++ b/src/gateway/config-recovery-notice.ts
@@ -1,21 +1,33 @@
 import path from "node:path";
+import { formatConfigIssueSummary, type ConfigIssueLineInput } from "../config/issue-format.js";
 import { resolveMainSessionKey } from "../config/sessions/main-session.js";
 import type { OpenClawConfig } from "../config/types.openclaw.js";
 import { enqueueSystemEvent } from "../infra/system-events.js";
 
 export type ConfigRecoveryNoticePhase = "startup" | "reload";
 
+export function formatConfigRecoveryIssueSentence(
+  issues: ReadonlyArray<ConfigIssueLineInput> | undefined,
+): string | null {
+  const summary = formatConfigIssueSummary(issues ?? []);
+  return summary ? `Rejected validation details: ${summary}.` : null;
+}
+
 export function formatConfigRecoveryNotice(params: {
   phase: ConfigRecoveryNoticePhase;
   reason: string;
   configPath: string;
+  issues?: ReadonlyArray<ConfigIssueLineInput>;
 }): string {
   const configName = path.basename(params.configPath) || "openclaw.json";
   return [
     `Config recovery warning: OpenClaw restored ${configName} from the last-known-good backup during ${params.phase} (${params.reason}).`,
     "The rejected config was invalid and was preserved as a timestamped .clobbered.* file.",
+    formatConfigRecoveryIssueSentence(params.issues),
     `Do not write ${configName} again unless you validate the full config first.`,
-  ].join(" ");
+  ]
+    .filter((line): line is string => Boolean(line))
+    .join(" ");
 }
 
 export function enqueueConfigRecoveryNotice(params: {
@@ -23,6 +35,7 @@ export function enqueueConfigRecoveryNotice(params: {
   phase: ConfigRecoveryNoticePhase;
   reason: string;
   configPath: string;
+  issues?: ReadonlyArray<ConfigIssueLineInput>;
 }): boolean {
   return enqueueSystemEvent(formatConfigRecoveryNotice(params), {
     sessionKey: resolveMainSessionKey(params.cfg),
diff --git a/src/gateway/config-reload.test.ts b/src/gateway/config-reload.test.ts
index 629f469f657..8e4af2faf5b 100644
--- a/src/gateway/config-reload.test.ts
+++ b/src/gateway/config-reload.test.ts
@@ -748,7 +748,7 @@ describe("startGatewayConfigReloader", () => {
       "valid-config",
     );
     expect(log.warn).toHaveBeenCalledWith(
-      "config reload restored last-known-good config after invalid-config",
+      "config reload restored last-known-good config after invalid-config; Rejected validation details: gateway.mode: Expected string.",
     );
 
     await reloader.stop();
diff --git a/src/gateway/config-reload.ts b/src/gateway/config-reload.ts
index a61d8ed0c5b..7b5f7acbaf8 100644
--- a/src/gateway/config-reload.ts
+++ b/src/gateway/config-reload.ts
@@ -2,7 +2,7 @@ import { isDeepStrictEqual } from "node:util";
 import chokidar from "chokidar";
 import { bumpSkillsSnapshotVersion } from "../agents/skills/refresh-state.js";
 import type { ConfigWriteNotification } from "../config/io.js";
-import { formatConfigIssueLines } from "../config/issue-format.js";
+import { formatConfigIssueLines, formatConfigIssueSummary } from "../config/issue-format.js";
 import { materializeRuntimeConfig } from "../config/materialize.js";
 import {
   isPluginLocalInvalidConfigSnapshot,
@@ -271,7 +271,10 @@ export function startGatewayConfigReloader(opts: {
     if (!recovered) {
       return null;
     }
-    opts.log.warn(`config reload restored last-known-good config after ${reason}`);
+    const issueSummary = formatConfigIssueSummary([...snapshot.issues, ...snapshot.legacyIssues]);
+    opts.log.warn(
+      `config reload restored last-known-good config after ${reason}${issueSummary ? `; Rejected validation details: ${issueSummary}.` : ""}`,
+    );
     const nextSnapshot = await opts.readSnapshot();
     if (!nextSnapshot.valid) {
       const issues = formatConfigIssueLines(nextSnapshot.issues, "").join(", ");
diff --git a/src/gateway/server-reload-handlers.ts b/src/gateway/server-reload-handlers.ts
index 47e067eb626..77d53ae1943 100644
--- a/src/gateway/server-reload-handlers.ts
+++ b/src/gateway/server-reload-handlers.ts
@@ -447,6 +447,7 @@ export function startManagedGatewayConfigReloader(params: ManagedGatewayConfigRe
         phase: "reload",
         reason: `reload-${reason}`,
         configPath: snapshot.path,
+        issues: [...snapshot.issues, ...snapshot.legacyIssues],
       });
     },
     subscribeToWrites: params.subscribeToWrites,
diff --git a/src/gateway/server-startup-config.recovery.test.ts b/src/gateway/server-startup-config.recovery.test.ts
index 15849caaeec..e572f099661 100644
--- a/src/gateway/server-startup-config.recovery.test.ts
+++ b/src/gateway/server-startup-config.recovery.test.ts
@@ -389,13 +389,14 @@ describe("gateway startup config recovery", () => {
       reason: "startup-invalid-config",
     });
     expect(log.warn).toHaveBeenCalledWith(
-      `gateway: invalid config was restored from last-known-good backup: ${configPath}`,
+      `gateway: invalid config was restored from last-known-good backup: ${configPath}; Rejected validation details: gateway.mode: Expected 'local' or 'remote'.`,
     );
     expect(recoveryNotice.enqueueConfigRecoveryNotice).toHaveBeenCalledWith({
       cfg: recoveredSnapshot.config,
       phase: "startup",
       reason: "startup-invalid-config",
       configPath,
+      issues: [{ path: "gateway.mode", message: "Expected 'local' or 'remote'" }],
     });
   });
 
diff --git a/src/gateway/server-startup-config.ts b/src/gateway/server-startup-config.ts
index e7957e71167..00b391fec39 100644
--- a/src/gateway/server-startup-config.ts
+++ b/src/gateway/server-startup-config.ts
@@ -4,7 +4,7 @@ import {
   recoverConfigFromLastKnownGood,
   recoverConfigFromJsonRootSuffix,
 } from "../config/io.js";
-import { formatConfigIssueLines } from "../config/issue-format.js";
+import { formatConfigIssueLines, formatConfigIssueSummary } from "../config/issue-format.js";
 import { asResolvedSourceConfig, materializeRuntimeConfig } from "../config/materialize.js";
 import { replaceConfigFile } from "../config/mutate.js";
 import { isNixMode } from "../config/paths.js";
@@ -157,6 +157,15 @@ function resolveGatewayStartupConfigWithoutInvalidModelProviders(params: {
   };
 }
 
+function collectConfigSnapshotIssueDetails(snapshot: ConfigFileSnapshot) {
+  return [...snapshot.issues, ...snapshot.legacyIssues];
+}
+
+function formatConfigRecoveryLogIssueSuffix(snapshot: ConfigFileSnapshot): string {
+  const summary = formatConfigIssueSummary(collectConfigSnapshotIssueDetails(snapshot));
+  return summary ? `; Rejected validation details: ${summary}.` : "";
+}
+
 function resolveGatewayStartupConfigWithoutInvalidPluginEntries(params: {
   snapshot: ConfigFileSnapshot;
   log: GatewayStartupLog;
@@ -229,6 +238,8 @@ export async function loadGatewayStartupConfigSnapshot(params: {
       }
     }
     if (!configSnapshot.valid) {
+      const rejectedSnapshot = configSnapshot;
+      const rejectedConfigIssues = collectConfigSnapshotIssueDetails(rejectedSnapshot);
       const canRecoverFromLastKnownGood = shouldAttemptLastKnownGoodRecovery(configSnapshot);
       const recovered = canRecoverFromLastKnownGood
         ? await recoverConfigFromLastKnownGood({
@@ -244,7 +255,7 @@ export async function loadGatewayStartupConfigSnapshot(params: {
       if (recovered) {
         wroteConfig = true;
         params.log.warn(
-          `gateway: invalid config was restored from last-known-good backup: ${configSnapshot.path}`,
+          `gateway: invalid config was restored from last-known-good backup: ${rejectedSnapshot.path}${formatConfigRecoveryLogIssueSuffix(rejectedSnapshot)}`,
         );
         snapshotRead = await measure("config.snapshot.recovery-read", () =>
           readConfigFileSnapshotWithPluginMetadata({ measure }),
@@ -257,6 +268,7 @@ export async function loadGatewayStartupConfigSnapshot(params: {
             phase: "startup",
             reason: "startup-invalid-config",
             configPath: configSnapshot.path,
+            issues: rejectedConfigIssues,
           });
         }
       }