diff --git a/CHANGELOG.md b/CHANGELOG.md
index dccf64520..aadda21bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,4 +2,5 @@
 
 ## Unreleased
 
+- Fix channel imports, surface imports, and RSS backfills failing to find sample files in TSV lists with CRLF line endings.
 - Fix surface imports recording incorrect run bounds for unordered samples or accepting invalid intermediate timestamps; normalize imported run timestamps to UTC.
diff --git a/docs/data-imports.md b/docs/data-imports.md
index 7e3e7f898..06a30d077 100644
--- a/docs/data-imports.md
+++ b/docs/data-imports.md
@@ -17,6 +17,8 @@ node scripts/backfill-release-rss.mjs --family discord --spec openclaw@2026.5.16
 node scripts/summary.mjs
 ```
 
+Sample-paths TSV files accept LF or CRLF line endings and ignore empty lines. Tabs separate paths; spaces within each path are preserved. Surface TSV columns are summary, resource metrics, and performance events; channel import and RSS backfill columns are summary, observed messages, and resource metrics. Leave an optional column empty when supplying a later column.
+
 Telegram release imports expect the aggregate `qa-evidence.json` shape emitted by the OpenClaw package Telegram live lane. The OpenClaw harness checkout must include the package Telegram RTT evidence path; older OpenClaw packages can still be the system under test.
 
 ```sh
diff --git a/scripts/backfill-release-rss.mjs b/scripts/backfill-release-rss.mjs
index 7eb990cf9..c64385650 100644
--- a/scripts/backfill-release-rss.mjs
+++ b/scripts/backfill-release-rss.mjs
@@ -89,7 +89,7 @@ async function readResources(args) {
 
   const text = await fs.readFile(path.resolve(args.samplePaths), "utf8");
   const samples = [];
-  for (const [index, line] of text.split("\n").filter(Boolean).entries()) {
+  for (const [index, line] of text.split(/\r?\n/u).filter(Boolean).entries()) {
     const resourceMetricsPath = line.split("\t")[2];
     if (!resourceMetricsPath) {
       throw new Error(`sample-paths line ${index + 1} is missing a resource metrics path.`);
diff --git a/scripts/import-discord-rtt.mjs b/scripts/import-discord-rtt.mjs
index 8ae0693d6..574afb074 100644
--- a/scripts/import-discord-rtt.mjs
+++ b/scripts/import-discord-rtt.mjs
@@ -166,7 +166,7 @@ async function readJson(pathname) {
 async function readSampleEntries(samplesPath) {
   const text = await fs.readFile(samplesPath, "utf8");
   return text
-    .split("\n")
+    .split(/\r?\n/u)
     .filter(Boolean)
     .map((line, index) => {
       const [summaryPath, observedMessagesPath, resourceMetricsPath] = line.split("\t");
diff --git a/scripts/import-live-transport-rtt.mjs b/scripts/import-live-transport-rtt.mjs
index 42cfdc036..50cfaf98e 100644
--- a/scripts/import-live-transport-rtt.mjs
+++ b/scripts/import-live-transport-rtt.mjs
@@ -209,7 +209,7 @@ async function readJson(pathname) {
 async function readSampleEntries(samplesPath) {
   const text = await fs.readFile(samplesPath, "utf8");
   return text
-    .split("\n")
+    .split(/\r?\n/u)
     .filter(Boolean)
     .map((line, index) => {
       const [summaryPath, observedMessagesPath, resourceMetricsPath] = line.split("\t");
diff --git a/scripts/import-surface-rtt.mjs b/scripts/import-surface-rtt.mjs
index 795796d8f..5553e4d80 100644
--- a/scripts/import-surface-rtt.mjs
+++ b/scripts/import-surface-rtt.mjs
@@ -141,7 +141,7 @@ async function readJson(pathname) {
 async function readSampleEntries(samplesPath) {
   const text = await fs.readFile(samplesPath, "utf8");
   return text
-    .split("\n")
+    .split(/\r?\n/u)
     .filter(Boolean)
     .map((line, index) => {
       const [summaryPath, resourceMetricsPath, performanceEventsPath] = line.split("\t");
diff --git a/scripts/sample-paths.test.mjs b/scripts/sample-paths.test.mjs
new file mode 100644
index 000000000..76a7cfbe4
--- /dev/null
+++ b/scripts/sample-paths.test.mjs
@@ -0,0 +1,113 @@
+import assert from "node:assert/strict";
+import { execFile } from "node:child_process";
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { promisify } from "node:util";
+import test from "node:test";
+
+const execFileAsync = promisify(execFile);
+const SCRIPT_DIR = path.dirname(fileURLToPath(import.meta.url));
+const VERSION = "2026.5.16";
+const RUN = {
+  id: "tsv-test",
+  startedAt: "2026-05-16T00:00:00.000Z",
+  finishedAt: "2026-05-16T00:00:02.000Z",
+  durationMs: 2000,
+  status: "pass",
+};
+
+async function makeWorkspace(t) {
+  const workspace = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-rtt-tsv-test-"));
+  t.after(() => fs.rm(workspace, { recursive: true, force: true }));
+  return workspace;
+}
+
+async function readRow(workspace, family, target) {
+  return JSON.parse((await fs.readFile(
+    path.join(workspace, "data", family, target, `${VERSION}.jsonl`), "utf8",
+  )).trim());
+}
+
+const importers = [
+  { script: "import-discord-rtt.mjs", family: "channels", target: "discord", scenario: "discord-canary", args: [] },
+  { script: "import-live-transport-rtt.mjs", family: "channels", target: "slack", scenario: "slack-canary", args: ["--channel", "slack"] },
+  { script: "import-surface-rtt.mjs", family: "surfaces", target: "control-ui", scenario: "control-ui-qa-channel-image-roundtrip", args: ["--surface", "control-ui"] },
+];
+
+for (const [endingName, ending] of [["LF", "\n"], ["CRLF", "\r\n"]]) {
+  for (const importer of importers) {
+    for (const fullColumns of [false, true]) {
+      test(`${importer.script} reads ${endingName} TSV with ${fullColumns ? "all columns" : "one column"}`, async (t) => {
+        const workspace = await makeWorkspace(t);
+        // Spaces are part of the filenames, not whitespace to trim from TSV fields.
+        const summaryPath = " summary.json ";
+        const metricsPath = " metrics.env ";
+        const sidecarPath = " sidecar.json ";
+        const usesEvents = importer.family === "surfaces" && fullColumns;
+        await fs.writeFile(path.join(workspace, summaryPath), JSON.stringify({
+          ...RUN,
+          counts: { total: 1, passed: 1, failed: 0 },
+          scenarios: [{
+            id: importer.scenario,
+            status: "pass",
+            ...(usesEvents ? {} : { rttMeasurement: {
+              finalMatchedReplyRttMs: 25,
+              requestStartedAt: RUN.startedAt,
+              responseObservedAt: RUN.finishedAt,
+              source: "scenario-rtt",
+            } }),
+          }],
+        }));
+        await fs.writeFile(path.join(workspace, metricsPath), "max_rss_kb=204800\nelapsed_seconds=2\n");
+        await fs.writeFile(path.join(workspace, sidecarPath), JSON.stringify(usesEvents
+          ? [{ event: "control-ui.rpc", payload: { method: "chat.send", ok: true, durationMs: 25 } }]
+          : []));
+        const fields = fullColumns
+          ? importer.family === "surfaces"
+            ? [summaryPath, metricsPath, sidecarPath]
+            : [summaryPath, sidecarPath, metricsPath]
+          : [summaryPath];
+        await fs.writeFile(path.join(workspace, "samples.tsv"), `${fields.join("\t")}${ending}${ending}`);
+
+        await execFileAsync(process.execPath, [
+          path.join(SCRIPT_DIR, importer.script), "samples.tsv", ...importer.args,
+          "--spec", `openclaw@${VERSION}`, "--version", VERSION, "--require-pass",
+        ], { cwd: workspace });
+        const row = await readRow(workspace, importer.family, importer.target);
+        assert.equal(row.run.status, "pass");
+        assert.deepEqual(row.rtt.warmSamples, [25]);
+        if (fullColumns) {
+          assert.deepEqual(row.resources.maxRssKbSamples, [204800]);
+        }
+      });
+    }
+  }
+
+  test(`RSS backfill reads ${endingName} sample paths without changing RTT`, async (t) => {
+    const workspace = await makeWorkspace(t);
+    const resultPath = path.join(workspace, "runs/discord", RUN.id, "result.json");
+    const dataPath = path.join(workspace, "data/channels/discord", `${VERSION}.jsonl`);
+    const row = {
+      package: { spec: `openclaw@${VERSION}`, version: VERSION },
+      run: RUN,
+      rtt: { warmSamples: [25], p50Ms: 25, p95Ms: 25, failedSamples: 0 },
+      artifacts: { resultPath: `runs/discord/${RUN.id}/result.json` },
+    };
+    await fs.mkdir(path.dirname(resultPath), { recursive: true });
+    await fs.mkdir(path.dirname(dataPath), { recursive: true });
+    await fs.writeFile(resultPath, JSON.stringify(row));
+    await fs.writeFile(dataPath, `${JSON.stringify(row)}\n`);
+    await fs.writeFile(path.join(workspace, " metrics.env "), "max_rss_kb=204800\nelapsed_seconds=2\n");
+    await fs.writeFile(path.join(workspace, "samples.tsv"), `summary.json\t\t metrics.env ${ending}${ending}`);
+    await execFileAsync(process.execPath, [
+      path.join(SCRIPT_DIR, "backfill-release-rss.mjs"), "--family", "discord",
+      "--spec", `openclaw@${VERSION}`, "--version", VERSION, "--sample-paths", "samples.tsv",
+    ], { cwd: workspace });
+    const updated = await readRow(workspace, "channels", "discord");
+    assert.deepEqual(updated.rtt, row.rtt);
+    assert.deepEqual(updated.resources.maxRssKbSamples, [204800]);
+    assert.deepEqual(JSON.parse(await fs.readFile(resultPath, "utf8")), updated);
+  });
+}