diff --git a/apis/sources/telegram.mjs b/apis/sources/telegram.mjs
index eb65384..5157d3d 100644
--- a/apis/sources/telegram.mjs
+++ b/apis/sources/telegram.mjs
@@ -94,7 +94,7 @@ export async function getChat(chatId) {
 // Compact a Bot API message for briefing output
 function compactBotMessage(msg) {
   return {
-    text: (msg.text || msg.caption || '').slice(0, 300),
+    text: msg.text || msg.caption || '',
     date: msg.date ? new Date(msg.date * 1000).toISOString() : null,
     chat: msg.chat?.title || msg.chat?.username || 'unknown',
     views: msg.views || 0,
@@ -169,10 +169,12 @@ function parseWebPreview(html, channelId) {
         .replace(/&lt;/g, '<')
         .replace(/&gt;/g, '>')
         .replace(/&quot;/g, '"')
-        .replace(/&#039;/g, "'")
+        .replace(/&#0*39;/g, "'")
+        .replace(/&#x0*27;/gi, "'")
+        .replace(/&#(\d+);/g, (_, n) => String.fromCharCode(Number(n)))
+        .replace(/&#x([0-9a-f]+);/gi, (_, h) => String.fromCharCode(parseInt(h, 16)))
         .replace(/&nbsp;/g, ' ')
-        .trim()
-        .slice(0, 300);
+        .trim();
     }
 
     // Extract view count
diff --git a/lib/alerts/telegram.mjs b/lib/alerts/telegram.mjs
index 4c3ac3a..580a902 100644
--- a/lib/alerts/telegram.mjs
+++ b/lib/alerts/telegram.mjs
@@ -271,7 +271,7 @@ export class TelegramAlerter {
         headline: `OSINT Surge: ${osintNew.length} New Urgent Posts`,
         reason: `${osintNew.length} new urgent OSINT signals detected. Elevated conflict reporting tempo.`,
         actionable: 'Review OSINT stream for pattern. Cross-check with satellite and ACLED data.',
-        signals: osintNew.map(s => (s.text || '').substring(0, 40)).slice(0, 3),
+        signals: osintNew.map(s => s.text || s.label || s.key).slice(0, 5),
         crossCorrelation: 'telegram OSINT',
       };
     }
@@ -681,7 +681,7 @@ Respond with ONLY valid JSON:
     if (osintSignals.length > 0) {
       sections.push('📡 OSINT SIGNALS:\n' + osintSignals.map(s => {
         const post = s.item || s;
-        return `  [${post.channel || 'UNKNOWN'}] ${(post.text || s.reason || '').substring(0, 150)}`;
+        return `  [${post.channel || 'UNKNOWN'}] ${post.text || s.reason || ''}`;
       }).join('\n'));
     }
 
@@ -728,7 +728,10 @@ Respond with ONLY valid JSON:
     }
 
     if (evaluation.signals?.length) {
-      lines.push('', `Signals: ${evaluation.signals.join(' · ')}`);
+      lines.push('', `*Signals:*`);
+      for (const sig of evaluation.signals) {
+        lines.push(`• ${escapeMd(sig)}`);
+      }
     }
 
     lines.push('', `_${new Date().toISOString().replace('T', ' ').substring(0, 19)} UTC_`);
@@ -739,6 +742,13 @@ Respond with ONLY valid JSON:
 
 // ─── Helpers ──────────────────────────────────────────────────────────────
 
+function escapeMd(text) {
+  if (!text) return '';
+  // The bot sends alerts with legacy Markdown parse mode, not MarkdownV2.
+  // Escape only the characters that legacy Markdown actually treats as markup.
+  return text.replace(/([_*`\[])/g, '\\$1');
+}
+
 function parseJSON(text) {
   if (!text) return null;
   let cleaned = text.trim();
diff --git a/lib/delta/engine.mjs b/lib/delta/engine.mjs
index d42a958..ec45ddb 100644
--- a/lib/delta/engine.mjs
+++ b/lib/delta/engine.mjs
@@ -66,9 +66,9 @@ const RISK_KEYS = ['vix', 'hy_spread', 'urgent_posts', 'conflict_events', 'therm
 // ─── Semantic Hashing for Telegram Posts ─────────────────────────────────────
 
 /**
- * Produce a normalized hash of a post's content.
- * Strips timestamps, normalizes numbers, lowercases — so "BREAKING: 5 missiles at 14:32"
- * and "Breaking: 7 missiles at 15:01" produce the same hash (both are "missile strike" signals).
+ * Produce a normalized semantic hash of a post's content.
+ * This is intentionally lossy and is only safe as a fallback when a stable
+ * post identity is unavailable.
  */
 function contentHash(text) {
   if (!text) return '';
@@ -83,14 +83,34 @@ function contentHash(text) {
   return createHash('sha256').update(normalized).digest('hex').substring(0, 12);
 }
 
+function stablePostKey(post) {
+  if (!post) return '';
+
+  const sourceId = post.postId || post.messageId || '';
+  const channelId = post.channel || post.chat || '';
+  const date = post.date || '';
+  const text = (post.text || '').trim().substring(0, 200);
+
+  if (sourceId) return `id:${sourceId}`;
+  if (channelId && date) {
+    return createHash('sha256')
+      .update(`${channelId}|${date}|${text}`)
+      .digest('hex')
+      .substring(0, 16);
+  }
+
+  return `semantic:${contentHash(post.text)}`;
+}
+
 // ─── Core Delta Computation ──────────────────────────────────────────────────
 
 /**
  * @param {object} current - current sweep's synthesized data
  * @param {object|null} previous - previous sweep's synthesized data (null on first run)
  * @param {object} [thresholdOverrides] - optional: { numeric: {...}, count: {...} }
+ * @param {Array<object>} [priorRuns] - optional compacted prior runs for broader dedup
  */
-export function computeDelta(current, previous, thresholdOverrides = {}) {
+export function computeDelta(current, previous, thresholdOverrides = {}, priorRuns = []) {
   if (!previous) return null;
   if (!current) return null;
 
@@ -152,16 +172,21 @@ export function computeDelta(current, previous, thresholdOverrides = {}) {
 
   // ─── New urgent Telegram posts (semantic dedup) ──────────────────────
 
+  // Dedup against all recent runs (not just the last one) to catch posts that
+  // drop out of one sweep but reappear in a later one. Use stable post identity
+  // where possible so updated posts are not collapsed into earlier alerts just
+  // because their text is semantically similar.
+  const sources = priorRuns.length > 0 ? priorRuns : [previous];
   const prevHashes = new Set(
-    (previous.tg?.urgent || []).map(p => contentHash(p.text))
+    sources.flatMap(run => (run?.tg?.urgent || []).map(stablePostKey)).filter(Boolean)
   );
 
   for (const post of (current.tg?.urgent || [])) {
-    const hash = contentHash(post.text);
+    const hash = stablePostKey(post);
     if (hash && !prevHashes.has(hash)) {
       signals.new.push({
         key: `tg_urgent:${hash}`,
-        text: post.text?.substring(0, 120),
+        text: post.text,
         item: post,
         reason: 'New urgent OSINT post',
       });
diff --git a/lib/delta/memory.mjs b/lib/delta/memory.mjs
index 238c014..66986f0 100644
--- a/lib/delta/memory.mjs
+++ b/lib/delta/memory.mjs
@@ -74,7 +74,9 @@ export class MemoryManager {
   // Add a new run to hot memory
   addRun(synthesizedData) {
     const previous = this.getLastRun();
-    const delta = computeDelta(synthesizedData, previous);
+    // Collect urgent post hashes from all hot runs for broader dedup window
+    const priorRuns = this.hot.runs.map(r => r.data);
+    const delta = computeDelta(synthesizedData, previous, {}, priorRuns);
 
     // Compact the data for storage (strip large arrays)
     const compact = this._compactForStorage(synthesizedData);
@@ -199,7 +201,15 @@ export class MemoryManager {
       bls: data.bls,
       treasury: data.treasury,
       gscpi: data.gscpi,
-      tg: { posts: data.tg?.posts, urgent: (data.tg?.urgent || []).map(p => ({ text: p.text?.substring(0, 80), date: p.date })) },
+      tg: {
+        posts: data.tg?.posts,
+        urgent: (data.tg?.urgent || []).map(p => ({
+          text: p.text,
+          date: p.date,
+          channel: p.channel || p.chat || null,
+          postId: p.postId || null,
+        })),
+      },
       thermal: (data.thermal || []).map(t => ({ region: t.region, det: t.det, night: t.night, hc: t.hc })),
       air: (data.air || []).map(a => ({ region: a.region, total: a.total })),
       nuke: (data.nuke || []).map(n => ({ site: n.site, anom: n.anom, cpm: n.cpm })),
diff --git a/lib/llm/ideas.mjs b/lib/llm/ideas.mjs
index 08e6603..1e78e23 100644
--- a/lib/llm/ideas.mjs
+++ b/lib/llm/ideas.mjs
@@ -88,10 +88,20 @@ function compactSweepForLLM(data, delta, previousIdeas) {
     sections.push(`SUPPLY_CHAIN: GSCPI=${data.gscpi.value} (${data.gscpi.interpretation})`);
   }
 
-  // Geopolitical signals
+  // Geopolitical signals (cap total OSINT text to ~1500 chars to keep prompt compact)
   const urgentPosts = (data.tg?.urgent || []).slice(0, 5);
   if (urgentPosts.length) {
-    sections.push(`URGENT_OSINT:\n${urgentPosts.map(p => `- ${(p.text || '').substring(0, 120)}`).join('\n')}`);
+    const MAX_OSINT_CHARS = 1500;
+    let remaining = MAX_OSINT_CHARS;
+    const lines = [];
+    for (const p of urgentPosts) {
+      const text = p.text || '';
+      if (remaining <= 0) break;
+      const trimmed = text.length > remaining ? text.substring(0, remaining) + '…' : text;
+      lines.push(`- ${trimmed}`);
+      remaining -= trimmed.length;
+    }
+    sections.push(`URGENT_OSINT:\n${lines.join('\n')}`);
   }
 
   // Thermal / fire detections