diff --git a/scripts/src/hwlab-node-web-sentinel-cicd.ts b/scripts/src/hwlab-node-web-sentinel-cicd.ts
index 24f57c02..9f7de1d6 100644
--- a/scripts/src/hwlab-node-web-sentinel-cicd.ts
+++ b/scripts/src/hwlab-node-web-sentinel-cicd.ts
@@ -2094,6 +2094,7 @@ function probeSentinelDashboardBrowser(state: SentinelCicdState, options: Extrac
     commandTimeoutMs: options.commandTimeoutSeconds * 1000,
     inactivityTimeoutMs: 30000,
     runIdPrefix: `web-probe-sentinel-dashboard-${state.spec.nodeId.toLowerCase()}-${state.spec.lane}-${state.sentinelId}`,
+    stdoutTailBytes: 32768,
   }, script);
   const result = job.result;
   const transport = record(job.transport);
diff --git a/scripts/src/web-probe-remote-artifact.ts b/scripts/src/web-probe-remote-artifact.ts
index 6f19b2f8..47557bd5 100644
--- a/scripts/src/web-probe-remote-artifact.ts
+++ b/scripts/src/web-probe-remote-artifact.ts
@@ -12,6 +12,7 @@ export interface WebProbeRemoteArtifactJobOptions {
   pollIntervalMs?: number;
   keepRemote?: boolean;
   runIdPrefix?: string;
+  stdoutTailBytes?: number;
 }
 
 interface RemoteWebProbeArtifactManifest {
@@ -44,11 +45,12 @@ export function runWebProbeRemoteArtifactJob(options: WebProbeRemoteArtifactJobO
   const localDir = resolve(options.localDir);
   const commandTimeoutMs = Math.max(1_000, options.commandTimeoutMs);
   const pollIntervalMs = Math.max(250, options.pollIntervalMs ?? 2_000);
+  const stdoutTailBytes = Math.max(4_000, Math.min(256_000, Math.floor(options.stdoutTailBytes ?? 4_000)));
   const inactivityTimeoutMs = options.inactivityTimeoutMs;
   const keepRemote = options.keepRemote === true;
   const submitCommand = [transPath(), options.route, "sh"];
   const submit = runCommand(submitCommand, repoRoot, {
-    input: remoteArtifactSubmitScript(remoteDir, runId, userScript),
+    input: remoteArtifactSubmitScript(remoteDir, runId, userScript, stdoutTailBytes),
     timeoutMs: Math.min(60_000, commandTimeoutMs),
   });
   const submitRecovery = submit.exitCode !== 0 && isRecoverableSubmitTimeout(submit)
@@ -248,7 +250,7 @@ function cleanupRemoteDir(route: string, remoteDir: string, keepRemote: boolean)
   };
 }
 
-function remoteArtifactSubmitScript(remoteDir: string, runId: string, userScript: string): string {
+function remoteArtifactSubmitScript(remoteDir: string, runId: string, userScript: string, stdoutTailBytes: number): string {
   return [
     "set -eu",
     `remote_dir=${shellQuote(remoteDir)}`,
@@ -264,7 +266,7 @@ function remoteArtifactSubmitScript(remoteDir: string, runId: string, userScript
     "fi",
     writeBase64FileShell("$user_script", userScript, "UNIDESK_WEB_PROBE_ARTIFACT_USER_B64"),
     "chmod 700 \"$user_script\"",
-    writeBase64FileShell("$runner_script", remoteArtifactRunnerScript(remoteDir, runId), "UNIDESK_WEB_PROBE_ARTIFACT_RUNNER_B64"),
+    writeBase64FileShell("$runner_script", remoteArtifactRunnerScript(remoteDir, runId, stdoutTailBytes), "UNIDESK_WEB_PROBE_ARTIFACT_RUNNER_B64"),
     "chmod 700 \"$runner_script\"",
     'nohup sh "$runner_script" "$user_script" >"$submit_stdout" 2>"$submit_stderr" < /dev/null &',
     'pid=$!',
@@ -297,7 +299,7 @@ function remoteArtifactStatusScript(remoteDir: string): string {
   ].join("\n");
 }
 
-function remoteArtifactRunnerScript(remoteDir: string, runId: string): string {
+function remoteArtifactRunnerScript(remoteDir: string, runId: string, stdoutTailBytes: number): string {
   return [
     "set -eu",
     `remote_dir=${shellQuote(remoteDir)}`,
@@ -328,7 +330,7 @@ function remoteArtifactRunnerScript(remoteDir: string, runId: string): string {
     "    ;;",
     "  esac",
     "done",
-    "b64_tail() { if [ -f \"$1\" ]; then tail -c 4000 \"$1\" | base64 | tr -d '\\n'; fi; }",
+    `b64_tail() { if [ -f "$1" ]; then tail -c ${stdoutTailBytes} "$1" | base64 | tr -d '\\n'; fi; }`,
     "{",
     `printf '%s\\n' ${shellQuote(manifestBegin)}`,
     "printf 'run_id\\t%s\\n' \"$run_id\"",