diff --git a/scripts/fix-wpm.mjs b/scripts/fix-wpm.mjs
new file mode 100644
index 0000000..3b4d273
--- /dev/null
+++ b/scripts/fix-wpm.mjs
@@ -0,0 +1,31 @@
+#!/usr/bin/env node
+// One-time migration: zero out WPM for sessions that are clearly paste artifacts.
+// A session is flagged when activeMs < 5000 (sub-5-second burst) and the resulting
+// WPM exceeds 300 — no human types that fast.
+
+import { readFileSync, writeFileSync, cpSync } from 'fs'
+
+const TELEMETRY = `${process.env.HOME}/Library/Application Support/Borges/.borges/telemetry.json`
+const BACKUP    = TELEMETRY + '.bak'
+
+const sessions = JSON.parse(readFileSync(TELEMETRY, 'utf-8'))
+
+let fixed = 0
+const patched = sessions.map(s => {
+  if (s.wpm > 300 && s.activeMs < 5000) {
+    fixed++
+    console.log(`Fixing session ${s.id} (${s.storyId}): wpm ${s.wpm} → 0  [activeMs=${s.activeMs}, words ${s.wordsStart}→${s.wordsEnd}]`)
+    return { ...s, wpm: 0 }
+  }
+  return s
+})
+
+if (fixed === 0) {
+  console.log('No sessions to fix.')
+  process.exit(0)
+}
+
+cpSync(TELEMETRY, BACKUP)
+console.log(`Backed up to ${BACKUP}`)
+writeFileSync(TELEMETRY, JSON.stringify(patched, null, 2), 'utf-8')
+console.log(`Done. Fixed ${fixed} session(s).`)
diff --git a/scripts/merge-sessions.mjs b/scripts/merge-sessions.mjs
new file mode 100644
index 0000000..ac0e248
--- /dev/null
+++ b/scripts/merge-sessions.mjs
@@ -0,0 +1,58 @@
+#!/usr/bin/env node
+// One-time migration: merge consecutive same-story sessions that were split by
+// the blur-flush bug (every tab-out ended the session prematurely).
+// Sessions of the same story on the same date with a gap < GAP_MS are merged.
+
+import { readFileSync, writeFileSync, copyFileSync } from 'fs'
+
+const GAP_MS     = 10 * 60 * 1000  // 10-minute gap = new session
+const TELEMETRY  = `${process.env.HOME}/Library/Application Support/Borges/.borges/telemetry.json`
+const BACKUP     = TELEMETRY + '.merge-bak'
+
+const sessions = JSON.parse(readFileSync(TELEMETRY, 'utf-8'))
+
+// Sort chronologically so we can walk them in order
+const sorted = [...sessions].sort((a, b) => a.startedAt - b.startedAt)
+
+const merged = []
+let mergeCount = 0
+
+for (const s of sorted) {
+  const prev = merged[merged.length - 1]
+
+  const sameStory = prev && prev.storyId === s.storyId
+  const sameDate  = prev && prev.date === s.date
+  const gapMs     = prev ? s.startedAt - prev.endedAt : Infinity
+
+  if (sameStory && sameDate && gapMs < GAP_MS) {
+    // Merge s into prev
+    const combinedActiveMs = prev.activeMs + s.activeMs
+    const typedWords       = s.wordsEnd - prev.wordsStart
+    const wpm              = combinedActiveMs > 0
+      ? Math.round(Math.max(0, typedWords) / (combinedActiveMs / 60_000))
+      : 0
+
+    console.log(
+      `Merging ${s.id} into ${prev.id} (${prev.storyId}) ` +
+      `gap=${(gapMs / 60000).toFixed(1)}m  words ${prev.wordsStart}→${s.wordsEnd}  wpm ${prev.wpm}→${wpm}`
+    )
+
+    prev.endedAt   = s.endedAt
+    prev.wordsEnd  = s.wordsEnd
+    prev.activeMs  = combinedActiveMs
+    prev.wpm       = wpm
+    mergeCount++
+  } else {
+    merged.push({ ...s })
+  }
+}
+
+if (mergeCount === 0) {
+  console.log('No sessions to merge.')
+  process.exit(0)
+}
+
+copyFileSync(TELEMETRY, BACKUP)
+console.log(`\nBacked up to ${BACKUP}`)
+writeFileSync(TELEMETRY, JSON.stringify(merged, null, 2), 'utf-8')
+console.log(`Done. Merged ${mergeCount} session(s) → ${merged.length} total (was ${sessions.length}).`)