diff --git a/src/core/formatter.ts b/src/core/formatter.ts
index b665eb4..a5d4b1b 100644
--- a/src/core/formatter.ts
+++ b/src/core/formatter.ts
@@ -138,12 +138,14 @@ function formatTimestamp(date: Date, options: EnvelopeOptions): string {
 /**
  * Format a message with metadata envelope
  * 
- * Format: [Channel GroupName Sender Timestamp] Message
+ * Format: [Channel:ChatId Sender Timestamp] Message
+ * 
+ * The Channel:ChatId format allows the agent to reply using:
+ *   lettabot-message send --text "..." --channel telegram --chat 123456789
  * 
  * Examples:
- * - [Slack #general @cameron Monday, Jan 27, 4:30 PM PST] Hello!
- * - [WhatsApp Cameron Monday, Jan 27, 5:00 PM PST] Hi there
- * - [Signal Family Group +1 (555) 123-4567 Tuesday, Jan 28, 9:30 AM PST] Dinner at 7?
+ * - [telegram:123456789 Sarah Wednesday, Jan 28, 4:30 PM PST] Hello!
+ * - [slack:C1234567 @cameron Monday, Jan 27, 4:30 PM PST] Hello!
  */
 export function formatMessageEnvelope(
   msg: InboundMessage,
@@ -152,13 +154,8 @@ export function formatMessageEnvelope(
   const opts = { ...DEFAULT_OPTIONS, ...options };
   const parts: string[] = [];
   
-  // Channel name with format hint
-  const formatHint = CHANNEL_FORMATS[msg.channel];
-  if (formatHint) {
-    parts.push(`${formatChannelName(msg.channel)} (${formatHint})`);
-  } else {
-    parts.push(formatChannelName(msg.channel));
-  }
+  // Channel:ChatId (for lettabot-message CLI)
+  parts.push(`${msg.channel}:${msg.chatId}`);
   
   // Group name (if group chat and enabled)
   if (opts.includeGroup !== false && msg.isGroup && msg.groupName?.trim()) {
@@ -182,5 +179,9 @@ export function formatMessageEnvelope(
   // Build envelope
   const envelope = `[${parts.join(' ')}]`;
   
-  return `${envelope} ${msg.text}`;
+  // Add format hint as a separate note (not cluttering the main envelope)
+  const formatHint = CHANNEL_FORMATS[msg.channel];
+  const hint = formatHint ? `\n(Format: ${formatHint})` : '';
+  
+  return `${envelope} ${msg.text}${hint}`;
 }
diff --git a/src/core/system-prompt.ts b/src/core/system-prompt.ts
index a5935e9..0f07a94 100644
--- a/src/core/system-prompt.ts
+++ b/src/core/system-prompt.ts
@@ -88,6 +88,55 @@ How to use Skills:
 
 IMPORTANT: Always unload irrelevant skills using the Skill tool to free up context space.
 
+# Scheduling
+
+You can create scheduled tasks using the \`lettabot-schedule\` CLI via Bash.
+
+## One-Off Reminders
+
+For reminders at a specific future time, use \`--at\` with an ISO datetime:
+
+\`\`\`bash
+# First calculate the datetime (e.g., 30 minutes from now)
+# new Date(Date.now() + 30*60*1000).toISOString()
+
+lettabot-schedule create \\
+  --name "Reminder" \\
+  --at "2026-01-28T20:15:00.000Z" \\
+  --message "Time to take a break!"
+\`\`\`
+
+One-off reminders auto-delete after running.
+
+## Recurring Schedules
+
+For recurring tasks, use \`--schedule\` with a cron expression:
+
+\`\`\`bash
+lettabot-schedule create \\
+  --name "Morning Briefing" \\
+  --schedule "0 8 * * *" \\
+  --message "Good morning! What's on today's agenda?"
+\`\`\`
+
+## Common Cron Patterns
+
+| Pattern | When |
+|---------|------|
+| \`0 8 * * *\` | Daily at 8:00 AM |
+| \`0 9 * * 1-5\` | Weekdays at 9:00 AM |
+| \`0 */2 * * *\` | Every 2 hours |
+| \`30 17 * * 5\` | Fridays at 5:30 PM |
+
+## Managing Jobs
+
+\`\`\`bash
+lettabot-schedule list              # List all jobs
+lettabot-schedule delete <job-id>   # Delete a job
+lettabot-schedule enable <job-id>   # Enable a job
+lettabot-schedule disable <job-id>  # Disable a job
+\`\`\`
+
 # Security
 
 - Assist with defensive security tasks only
@@ -99,5 +148,5 @@ IMPORTANT: Always unload irrelevant skills using the Skill tool to free up conte
 
 If the user asks for help or wants to give feedback:
 - Discord: Get help on our official Discord channel (discord.gg/letta)
-- GitHub: Report issues at https://github.com/letta-ai/letta-code/issues
+- GitHub: Report issues at https://github.com/letta-ai/lettabot/issues
 `;