diff --git a/packages/gittensory-miner/lib/coding-agent-construction.js b/packages/gittensory-miner/lib/coding-agent-construction.js
index d463649b1..bcdb40c1d 100644
--- a/packages/gittensory-miner/lib/coding-agent-construction.js
+++ b/packages/gittensory-miner/lib/coding-agent-construction.js
@@ -62,11 +62,10 @@ export function createRealCliSubprocessSpawn() {
  * automatic-enforcement guarantee `runHouseRulesEnforcedCodingAgentAttempt` gives task-level callers, but at
  * the raw driver-construction level `attempt-runner.js`'s `deps.driver` actually needs.
  *
- * The default only applies to `agent-sdk`, the one provider with a real hook-registration surface. CLI
- * subprocess providers (`claude-cli`/`codex-cli`) have none, and the engine's `createCliProvider` fails closed
- * if `hooks` is supplied at all (driver-factory.ts) -- filling the default for them here would make every CLI
- * construction throw. An explicitly-supplied `options.hooks` always wins and is forwarded as-is, so a caller
- * that deliberately asks a CLI provider to enforce hooks still gets that same fail-closed rejection.
+ * The default is deliberately built before provider dispatch. `agent-sdk` can enforce it with its PreToolUse
+ * surface; CLI subprocess providers (`claude-cli`/`codex-cli`) cannot, so the engine rejects the hooks and
+ * production construction fails closed instead of running untrusted issue prompts without house-rule enforcement.
+ * An explicitly-supplied `options.hooks` always wins and is forwarded as-is.
  *
  * Fails closed (throws) when no provider is configured, or when a CLI provider is selected without a real
  * spawn available — never silently falls back to a driver that can never run.
@@ -86,11 +85,7 @@ export function constructProductionCodingAgentDriver(env, options = {}) {
   if (!providerName) {
     throw new Error("unconfigured_coding_agent_driver:no_provider_in_MINER_CODING_AGENT_PROVIDER");
   }
-  const hooks =
-    options.hooks ??
-    (providerName.trim().toLowerCase() === "agent-sdk"
-      ? buildHouseRulesAgentSdkHooks(options.houseRulesConfig, options.houseRulesOptions)
-      : undefined);
+  const hooks = options.hooks ?? buildHouseRulesAgentSdkHooks(options.houseRulesConfig, options.houseRulesOptions);
   return createCodingAgentDriver({
     providerName,
     env,
diff --git a/packages/gittensory-miner/lib/coding-agent-house-rules.js b/packages/gittensory-miner/lib/coding-agent-house-rules.js
index c989335ef..2a0193985 100644
--- a/packages/gittensory-miner/lib/coding-agent-house-rules.js
+++ b/packages/gittensory-miner/lib/coding-agent-house-rules.js
@@ -42,10 +42,9 @@ export function buildHouseRulesAgentSdkHooks(config = {}, options = {}) {
  * {@link buildHouseRulesAgentSdkHooks} for the `agent-sdk` provider, so house-rule enforcement (#2343) is ON
  * by default rather than opt-in. An explicitly-supplied `hooks` option always wins (e.g. a test injecting its
  * own hook double, or a caller composing additional hooks of its own) -- this only fills the gap when the
- * caller omitted it entirely. CLI providers (`claude-cli`, `codex-cli`) have no hook-registration surface, and
- * the engine fails closed if `hooks` is supplied to them at all -- so the default is scoped to `agent-sdk`
- * only; a CLI attempt with no explicit `hooks` gets none (today's inert no-op), while one that explicitly
- * supplies `hooks` still gets the engine's real fail-closed rejection instead of a silently unenforced run.
+ * caller omitted it entirely. CLI providers (`claude-cli`, `codex-cli`) have no hook-registration surface; passing
+ * the default hooks to them intentionally triggers the engine's fail-closed rejection instead of silently running
+ * untrusted issue prompts without the requested house-rule policy.
  *
  * @param {Parameters<typeof runCodingAgentAttempt>[0] & {
  *   houseRulesConfig?: Parameters<typeof buildHouseRulesPreToolUseHook>[0],
@@ -55,10 +54,6 @@ export function buildHouseRulesAgentSdkHooks(config = {}, options = {}) {
  */
 export function runHouseRulesEnforcedCodingAgentAttempt(options) {
   const { houseRulesConfig, houseRulesOptions, ...attemptOptions } = options;
-  const hooks =
-    attemptOptions.hooks ??
-    (attemptOptions.providerName.trim().toLowerCase() === "agent-sdk"
-      ? buildHouseRulesAgentSdkHooks(houseRulesConfig, houseRulesOptions)
-      : undefined);
+  const hooks = attemptOptions.hooks ?? buildHouseRulesAgentSdkHooks(houseRulesConfig, houseRulesOptions);
   return runCodingAgentAttempt({ ...attemptOptions, ...(hooks !== undefined ? { hooks } : {}) });
 }
diff --git a/test/unit/miner-coding-agent-construction.test.ts b/test/unit/miner-coding-agent-construction.test.ts
index c001818f4..86dcea693 100644
--- a/test/unit/miner-coding-agent-construction.test.ts
+++ b/test/unit/miner-coding-agent-construction.test.ts
@@ -97,34 +97,14 @@ describe("constructProductionCodingAgentDriver (#5131)", () => {
     expect(result.changedFiles).toEqual([]);
   });
 
-  it("constructs a claude-cli driver wired to an injected spawn, without invoking it during construction", async () => {
-    const calls: Array<{ cmd: string; args: readonly string[] }> = [];
-    const driver = constructProductionCodingAgentDriver(
-      { MINER_CODING_AGENT_PROVIDER: "claude-cli" },
-      {
-        spawn: async (cmd, args) => {
-          calls.push({ cmd, args });
-          return { stdout: "done", code: 0 };
-        },
-      },
-    );
-    expect(calls).toHaveLength(0); // construction alone must not spawn anything
-    const result = await driver.run(task);
-    expect(calls).toHaveLength(1);
-    expect(calls[0]!.cmd).toBe("claude");
-    expect(result.ok).toBe(true);
-  });
-
-  it("defaults to a real (non-injected) spawn for a CLI provider when the caller supplies none", () => {
-    // Construction alone must succeed without ever invoking the real spawn (a real "claude" binary is not
-    // present in CI) — proving the `options.spawn ?? createRealCliSubprocessSpawn()` default branch is taken.
-    const driver = constructProductionCodingAgentDriver({ MINER_CODING_AGENT_PROVIDER: "claude-cli" });
-    expect(typeof driver.run).toBe("function");
-  });
-
-  it("REGRESSION: does NOT default-fill house-rule hooks for claude-cli/codex-cli — the default only applies to agent-sdk, the one provider that can enforce them", () => {
-    expect(() => constructProductionCodingAgentDriver({ MINER_CODING_AGENT_PROVIDER: "claude-cli" })).not.toThrow();
-    expect(() => constructProductionCodingAgentDriver({ MINER_CODING_AGENT_PROVIDER: "codex-cli" })).not.toThrow();
+  it("REGRESSION: fails closed for claude-cli/codex-cli by default because production house-rule hooks cannot be enforced there", () => {
+    const spawn = async () => ({ stdout: "done", code: 0 });
+    expect(() =>
+      constructProductionCodingAgentDriver({ MINER_CODING_AGENT_PROVIDER: "claude-cli" }, { spawn }),
+    ).toThrow(/unsupported_coding_agent_driver_hooks:claude-cli/);
+    expect(() =>
+      constructProductionCodingAgentDriver({ MINER_CODING_AGENT_PROVIDER: "codex-cli" }, { spawn }),
+    ).toThrow(/unsupported_coding_agent_driver_hooks:codex-cli/);
   });
 
   it("still fails closed for claude-cli/codex-cli when the caller EXPLICITLY supplies hooks (a real request the engine correctly rejects rather than silently dropping)", () => {
diff --git a/test/unit/miner-coding-agent-house-rules.test.ts b/test/unit/miner-coding-agent-house-rules.test.ts
index a92f2499d..5d494507f 100644
--- a/test/unit/miner-coding-agent-house-rules.test.ts
+++ b/test/unit/miner-coding-agent-house-rules.test.ts
@@ -121,13 +121,14 @@ describe("runHouseRulesEnforcedCodingAgentAttempt (#2343 follow-up)", () => {
     expect(result.result.ok).toBe(true);
   });
 
-  it("REGRESSION: does NOT default-fill hooks for claude-cli — the default only applies to agent-sdk, the one provider that can enforce them", async () => {
-    const result = await runHouseRulesEnforcedCodingAgentAttempt({
-      providerName: "claude-cli",
-      task,
-      spawn: async () => ({ stdout: "done", code: 0 }),
-    });
-    expect(result.result.ok).toBe(true);
+  it("REGRESSION: fails closed for claude-cli by default because house-rule hooks cannot be enforced there", async () => {
+    await expect(
+      runHouseRulesEnforcedCodingAgentAttempt({
+        providerName: "claude-cli",
+        task,
+        spawn: async () => ({ stdout: "done", code: 0 }),
+      }),
+    ).rejects.toThrow(/unsupported_coding_agent_driver_hooks:claude-cli/);
   });
 
   it("still fails closed for claude-cli when the caller EXPLICITLY supplies hooks (a real request the engine correctly rejects rather than silently dropping)", async () => {