diff --git a/packages/loopover-miner/lib/deny-hook-synthesis.ts b/packages/loopover-miner/lib/deny-hook-synthesis.ts
index 8fa520540..a9b330de9 100644
--- a/packages/loopover-miner/lib/deny-hook-synthesis.ts
+++ b/packages/loopover-miner/lib/deny-hook-synthesis.ts
@@ -3,9 +3,7 @@
 // this module is now a thin wrapper that re-exports those pure helpers and keeps the local SQLite store for
 // refresh + maintainer review before any synthesized rule takes effect. Approved rules merge with
 // {@link DEFAULT_DENY_RULES}; unapproved proposals never block tool calls. No behavior change.
-import { chmodSync, mkdirSync } from "node:fs";
-import { dirname } from "node:path";
-import { DatabaseSync } from "node:sqlite";
+import type { DatabaseSync } from "node:sqlite";
 import {
   aggregateBlockerHistory,
   canonicalizeChangedPath,
@@ -23,7 +21,7 @@ import {
 import type { DenyRuleProposal, SynthesisConfig } from "@loopover/engine";
 import { DEFAULT_FORGE_CONFIG } from "./forge-config.js";
 import type { DenyRule } from "./deny-hooks.js";
-import { resolveLocalStoreDbPath } from "./local-store.js";
+import { openLocalStoreDb, resolveLocalStoreDbPath } from "./local-store.js";
 import { DENY_HOOK_SYNTHESIS_PURGE_SPEC, purgeStoreByRepo } from "./store-maintenance.js";
 
 // Re-export the pure synthesis helpers from the engine so this module's public API is unchanged after #5667
@@ -149,10 +147,9 @@ function ensureDenyRuleProposalsForgeScope(db: DatabaseSync): void {
  */
 export function initDenyHookSynthesisStore(dbPath: string = resolveDenyHookSynthesisDbPath()): DenyHookSynthesisStore {
   const resolvedPath = normalizeDbPath(dbPath);
-  mkdirSync(dirname(resolvedPath), { recursive: true, mode: 0o700 });
-  const db = new DatabaseSync(resolvedPath);
-  chmodSync(resolvedPath, 0o600);
-  db.exec("PRAGMA busy_timeout = 5000");
+  // openLocalStoreDb centralizes the mkdir(0o700)/chmod(0o600)/busy_timeout + crash-safe cleanup registration and
+  // treats ':memory:' as a no-file special case, so this store no longer hand-rolls that boilerplate (#8319).
+  const db = openLocalStoreDb(resolvedPath);
   db.exec(`
     CREATE TABLE IF NOT EXISTS deny_rule_proposals (
       repo_full_name TEXT NOT NULL,
diff --git a/packages/loopover-miner/lib/laptop-init.ts b/packages/loopover-miner/lib/laptop-init.ts
index dae99ab47..e604b09df 100644
--- a/packages/loopover-miner/lib/laptop-init.ts
+++ b/packages/loopover-miner/lib/laptop-init.ts
@@ -1,11 +1,11 @@
-import { accessSync, chmodSync, constants, existsSync, mkdirSync } from "node:fs";
+import { accessSync, constants, existsSync } from "node:fs";
 import { homedir } from "node:os";
 import { delimiter, join } from "node:path";
 import { DatabaseSync } from "node:sqlite";
 import { applySchemaMigrations } from "./schema-version.js";
 import { reportCliFailure } from "./cli-error.js";
 import { resolveGitHubToken } from "./github-token-resolution.js";
-import { resolveLocalStoreDbPath } from "./local-store.js";
+import { openLocalStoreDb, resolveLocalStoreDbPath } from "./local-store.js";
 
 const githubApiBaseUrl = "https://api.github.com";
 const githubApiVersion = "2022-11-28";
@@ -53,9 +53,11 @@ export function resolveLaptopStateDbPath(env: Record<string, string | undefined>
 export function initLaptopState(env: Record<string, string | undefined> = process.env): LaptopInitResult {
   const stateDir = resolveMinerStateDir(env);
   const dbPath = resolveLaptopStateDbPath(env);
-  mkdirSync(stateDir, { recursive: true, mode: 0o700 });
+  // Sample before openLocalStoreDb: the helper creates the parent dir + file, so `created` must be read first.
   const created = !existsSync(dbPath);
-  const db = new DatabaseSync(dbPath);
+  // openLocalStoreDb centralizes the mkdir(0o700)/chmod(0o600)/busy_timeout + crash-safe cleanup registration
+  // (#8319) -- this was previously the one store with no busy-timeout and no crash-safety registration at all.
+  const db = openLocalStoreDb(dbPath);
   db.exec(`
     CREATE TABLE IF NOT EXISTS laptop_meta (
       key TEXT PRIMARY KEY,
@@ -68,7 +70,6 @@ export function initLaptopState(env: Record<string, string | undefined> = proces
     db.prepare("INSERT INTO laptop_meta (key, value) VALUES ('initialized_at', ?)")
       .run(new Date().toISOString());
   }
-  chmodSync(dbPath, 0o600);
   db.close();
   return { stateDir, dbPath, created };
 }
diff --git a/packages/loopover-miner/lib/orb-export.ts b/packages/loopover-miner/lib/orb-export.ts
index 98138c164..bb388917e 100644
--- a/packages/loopover-miner/lib/orb-export.ts
+++ b/packages/loopover-miner/lib/orb-export.ts
@@ -1,13 +1,10 @@
-import { chmodSync, mkdirSync } from "node:fs";
-import { dirname } from "node:path";
-import { DatabaseSync } from "node:sqlite";
 import { createHash, createHmac } from "node:crypto";
 import { generateAnonSecret, hmacAnonymize as engineHmacAnonymize } from "@loopover/engine";
 import { readPrOutcomes } from "./pr-outcome.js";
 import type { NormalizedPrOutcomePayload, PrOutcomeLedgerReader } from "./pr-outcome.js";
 import { initEventLedger } from "./event-ledger.js";
 import { argsWantJson, describeCliError, reportCliFailure } from "./cli-error.js";
-import { resolveLocalStoreDbPath } from "./local-store.js";
+import { openLocalStoreDb, resolveLocalStoreDbPath } from "./local-store.js";
 
 // Optional anonymized Orb telemetry export (#4277, network send wired in #5681). The self-host Orb collector
 // (src/selfhost/orb-collector.ts, #1255) is ALWAYS-ON for a maintainer's own instance; a miner runs on a
@@ -113,10 +110,9 @@ export function buildAnonymizedOrbBatch(
  */
 export function openOrbExportStore(dbPath: string = resolveOrbExportDbPath()): OrbExportStore {
   const resolvedPath = normalizeDbPath(dbPath);
-  mkdirSync(dirname(resolvedPath), { recursive: true, mode: 0o700 });
-  const db = new DatabaseSync(resolvedPath);
-  chmodSync(resolvedPath, 0o600);
-  db.exec("PRAGMA busy_timeout = 5000");
+  // openLocalStoreDb centralizes the mkdir(0o700)/chmod(0o600)/busy_timeout + crash-safe cleanup registration and
+  // treats ':memory:' as a no-file special case, so this store no longer hand-rolls that boilerplate (#8319).
+  const db = openLocalStoreDb(resolvedPath);
   db.exec(`CREATE TABLE IF NOT EXISTS orb_export_meta (key TEXT PRIMARY KEY, value TEXT NOT NULL)`);
 
   const getStatement = db.prepare("SELECT value FROM orb_export_meta WHERE key = ?");
diff --git a/test/unit/miner-deny-hook-synthesis.test.ts b/test/unit/miner-deny-hook-synthesis.test.ts
index 26f443285..a3debc147 100644
--- a/test/unit/miner-deny-hook-synthesis.test.ts
+++ b/test/unit/miner-deny-hook-synthesis.test.ts
@@ -7,7 +7,18 @@ import {
   DEFAULT_DENY_RULES,
   evaluateDenyHooks,
 } from "../../packages/loopover-miner/lib/deny-hooks.js";
-import {
+import type { DenyRuleProposal } from "../../packages/loopover-engine/src/miner/deny-hook-synthesis";
+// #7525: normalizeRepoFullName is defined in the engine and re-exported unchanged by the miner-lib module
+// above; import it from the engine source directly so the guard's src branches are the ones exercised.
+import { normalizeRepoFullName } from "../../packages/loopover-engine/src/miner/deny-hook-synthesis";
+import { resolveLocalStoreDbPath } from "../../packages/loopover-miner/lib/local-store.js";
+import { cleanupResourceCount, resetProcessLifecycleForTesting } from "../../packages/loopover-miner/lib/process-lifecycle.js";
+
+// Import the .ts SOURCE (not the build-time .js) via a non-literal specifier. Once `build:miner` has produced
+// the artifact, a plain `.js` import loads that .js and leaves coverage.include's `.ts` entry at 0% — the
+// .js-vs-.ts mismatch that closed #8500/#8516 on codecov/patch. Same pattern as miner-replay-snapshot.test.ts (#7796).
+const DENY_HOOK_SYNTHESIS_MODULE = "../../packages/loopover-miner/lib/deny-hook-synthesis.ts";
+const {
   aggregateBlockerHistory,
   changedPathToDenyGlob,
   initDenyHookSynthesisStore,
@@ -16,12 +27,7 @@ import {
   resolveEffectiveDenyRules,
   setProposalStatuses,
   synthesizeDenyRuleProposals,
-} from "../../packages/loopover-miner/lib/deny-hook-synthesis.js";
-import type { DenyRuleProposal } from "../../packages/loopover-engine/src/miner/deny-hook-synthesis";
-// #7525: normalizeRepoFullName is defined in the engine and re-exported unchanged by the miner-lib module
-// above; import it from the engine source directly so the guard's src branches are the ones exercised.
-import { normalizeRepoFullName } from "../../packages/loopover-engine/src/miner/deny-hook-synthesis";
-import { resolveLocalStoreDbPath } from "../../packages/loopover-miner/lib/local-store.js";
+} = (await import(DENY_HOOK_SYNTHESIS_MODULE)) as typeof import("../../packages/loopover-miner/lib/deny-hook-synthesis.js");
 
 const tempDirs: string[] = [];
 const stores: Array<{ close(): void }> = [];
@@ -180,6 +186,16 @@ describe("initDenyHookSynthesisStore() (#4522)", () => {
     expect(() => initDenyHookSynthesisStore("   ")).toThrow("invalid_deny_hook_synthesis_db_path");
   });
 
+  it("registers the store for crash-safe cleanup via openLocalStoreDb, and unregisters it on close (#8319)", () => {
+    resetProcessLifecycleForTesting();
+    expect(cleanupResourceCount()).toBe(0);
+    const store = tempStore();
+    expect(cleanupResourceCount()).toBe(1);
+    stores.splice(stores.indexOf(store), 1);
+    store.close();
+    expect(cleanupResourceCount()).toBe(0);
+  });
+
   it("skips the forge-scope migration on a second open of an already-migrated file", () => {
     const dir = mkdtempSync(join(tmpdir(), "miner-deny-hook-synthesis-remigrate-"));
     tempDirs.push(dir);
diff --git a/test/unit/miner-laptop-init.test.ts b/test/unit/miner-laptop-init.test.ts
index e769c9cb0..3318979ea 100644
--- a/test/unit/miner-laptop-init.test.ts
+++ b/test/unit/miner-laptop-init.test.ts
@@ -29,13 +29,19 @@ vi.mock("node:sqlite", async (importOriginal) => {
   }
   return { ...actual, DatabaseSync: RecordingDatabaseSync };
 });
-import {
+import { cleanupResourceCount, resetProcessLifecycleForTesting } from "../../packages/loopover-miner/lib/process-lifecycle.js";
+
+// Import the .ts SOURCE (not the build-time .js) via a non-literal specifier. Once `build:miner` has produced
+// the artifact, a plain `.js` import loads that .js and leaves coverage.include's `.ts` entry at 0% — the
+// .js-vs-.ts mismatch that closed #8500/#8516 on codecov/patch. Same pattern as miner-replay-snapshot.test.ts (#7796).
+const LAPTOP_INIT_MODULE = "../../packages/loopover-miner/lib/laptop-init.ts";
+const {
   checkDockerPresent,
   checkLaptopStateSqlite,
   initLaptopState,
   resolveLaptopStateDbPath,
   runInit,
-} from "../../packages/loopover-miner/lib/laptop-init.js";
+} = (await import(LAPTOP_INIT_MODULE)) as typeof import("../../packages/loopover-miner/lib/laptop-init.js");
 
 const roots: string[] = [];
 
@@ -91,6 +97,16 @@ describe("loopover-miner laptop init (#2329)", () => {
     expect(readFileSync(join(first.stateDir, "marker.txt"), "utf8")).toBe("keep-me");
   });
 
+  it("opens its store via openLocalStoreDb, registering and unregistering it for crash-safe cleanup within the call (#8319)", () => {
+    resetProcessLifecycleForTesting();
+    expect(cleanupResourceCount()).toBe(0);
+    const root = tempRoot();
+    initLaptopState({ LOOPOVER_MINER_CONFIG_DIR: join(root, "state") });
+    // initLaptopState closes its own handle internally before returning (it exposes no db handle), so a
+    // leftover registration here would mean the register→unregister cycle didn't complete cleanly.
+    expect(cleanupResourceCount()).toBe(0);
+  });
+
   it("runInit prints human text (0) and machine JSON with --json", async () => {
     const root = tempRoot();
     const env = { LOOPOVER_MINER_CONFIG_DIR: join(root, "state") };
diff --git a/test/unit/miner-orb-export.test.ts b/test/unit/miner-orb-export.test.ts
index 08dcc7603..51942effb 100644
--- a/test/unit/miner-orb-export.test.ts
+++ b/test/unit/miner-orb-export.test.ts
@@ -2,8 +2,15 @@ import { mkdtempSync, rmSync } from "node:fs";
 import { homedir, tmpdir } from "node:os";
 import { join } from "node:path";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import type { OrbExportOutcome, OrbExportRow } from "../../packages/loopover-miner/lib/orb-export.js";
+import { resolveLocalStoreDbPath } from "../../packages/loopover-miner/lib/local-store.js";
+import { cleanupResourceCount, resetProcessLifecycleForTesting } from "../../packages/loopover-miner/lib/process-lifecycle.js";
 
-import {
+// Import the .ts SOURCE (not the build-time .js) via a non-literal specifier. Once `build:miner` has produced
+// the artifact, a plain `.js` import loads that .js and leaves coverage.include's `.ts` entry at 0% — the
+// .js-vs-.ts mismatch that closed #8500/#8516 on codecov/patch. Same pattern as miner-replay-snapshot.test.ts (#7796).
+const ORB_EXPORT_MODULE = "../../packages/loopover-miner/lib/orb-export.ts";
+const {
   ORB_EXPORT_ENABLED_BY_DEFAULT,
   DEFAULT_AMS_COLLECTOR_URL,
   DEFAULT_ORB_EXPORT_TIMEOUT_MS,
@@ -17,9 +24,7 @@ import {
   resolveAmsCollectorUrl,
   resolveOrbExportDbPath,
   sendAmsExportBatch,
-} from "../../packages/loopover-miner/lib/orb-export.js";
-import type { OrbExportOutcome, OrbExportRow } from "../../packages/loopover-miner/lib/orb-export.js";
-import { resolveLocalStoreDbPath } from "../../packages/loopover-miner/lib/local-store.js";
+} = (await import(ORB_EXPORT_MODULE)) as typeof import("../../packages/loopover-miner/lib/orb-export.js");
 
 let dir: string;
 function storePath() {
@@ -69,6 +74,15 @@ describe("orb-export store (#4277)", () => {
     expect(store.getCursor()).toBe("2026-01-02T00:00:00Z");
     store.close();
   });
+
+  it("registers the store for crash-safe cleanup via openLocalStoreDb, and unregisters it on close (#8319)", () => {
+    resetProcessLifecycleForTesting();
+    expect(cleanupResourceCount()).toBe(0);
+    const store = openOrbExportStore(storePath());
+    expect(cleanupResourceCount()).toBe(1);
+    store.close();
+    expect(cleanupResourceCount()).toBe(0);
+  });
 });
 
 describe("hmacAnonymize", () => {