fix(node-host): sync rawCommand with hardened argv after executable path pinning (#33137)

Merged via squash.

Prepared head SHA: a7987905f7
Co-authored-by: Sid-Qin <201593046+Sid-Qin@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

src/node-host/invoke-system-run-plan.ts

@@ -3,7 +3,7 @@ import path from "node:path";
 import type { SystemRunApprovalPlan } from "../infra/exec-approvals.js";
 import { resolveCommandResolutionFromArgv } from "../infra/exec-command-resolution.js";
 import { sameFileIdentity } from "../infra/file-identity.js";
-import { resolveSystemRunCommand } from "../infra/system-run-command.js";
+import { formatExecCommand, resolveSystemRunCommand } from "../infra/system-run-command.js";
 
 export type ApprovedCwdSnapshot = {
   cwd: string;
@@ -144,6 +144,7 @@ export function hardenApprovedExecutionPaths(params: {
   | {
       ok: true;
       argv: string[];
+      argvChanged: boolean;
       cwd: string | undefined;
       approvedCwdSnapshot: ApprovedCwdSnapshot | undefined;
     }
@@ -152,6 +153,7 @@ export function hardenApprovedExecutionPaths(params: {
     return {
       ok: true,
       argv: params.argv,
+      argvChanged: false,
       cwd: params.cwd,
       approvedCwdSnapshot: undefined,
     };
@@ -172,6 +174,7 @@ export function hardenApprovedExecutionPaths(params: {
     return {
       ok: true,
       argv: params.argv,
+      argvChanged: false,
       cwd: hardenedCwd,
       approvedCwdSnapshot,
     };
@@ -190,6 +193,7 @@ export function hardenApprovedExecutionPaths(params: {
     return {
       ok: true,
       argv: params.argv,
+      argvChanged: false,
       cwd: hardenedCwd,
       approvedCwdSnapshot,
     };
@@ -203,11 +207,22 @@ export function hardenApprovedExecutionPaths(params: {
     };
   }
 
+  if (pinnedExecutable === params.argv[0]) {
+    return {
+      ok: true,
+      argv: params.argv,
+      argvChanged: false,
+      cwd: hardenedCwd,
+      approvedCwdSnapshot,
+    };
+  }
+
   const argv = [...params.argv];
   argv[0] = pinnedExecutable;
   return {
     ok: true,
     argv,
+    argvChanged: true,
     cwd: hardenedCwd,
     approvedCwdSnapshot,
   };
@@ -239,12 +254,15 @@ export function buildSystemRunApprovalPlan(params: {
   if (!hardening.ok) {
     return { ok: false, message: hardening.message };
   }
+  const rawCommand = hardening.argvChanged
+    ? formatExecCommand(hardening.argv) || null
+    : command.cmdText.trim() || null;
   return {
     ok: true,
     plan: {
       argv: hardening.argv,
       cwd: hardening.cwd ?? null,
-      rawCommand: command.cmdText.trim() || null,
+      rawCommand,
       agentId: normalizeString(params.agentId),
       sessionKey: normalizeString(params.sessionKey),
     },