/bsky-thread

You are tasked with splitting text into Bluesky-compatible thread messages. Bluesky has a 300 character limit per post.

The user input below is either a file path or raw text:

{{prompt}}

Task Instructions

1. Detect Input Type:

   • If input starts with @, it's a Claude Code file reference - convert to absolute path and read it
   • Check if the input is a file path (absolute paths or paths ending with common extensions like .txt, .md, etc.)
   • If it looks like a file path, use the Read tool to load the file content
   • If a file path is provided but doesn't have an extension (like LICENSE), still try to read it as a file
   • Otherwise, treat the entire input as the text to split

2. Split Algorithm:

   • Target: 300 characters per message (use ~280-290 character soft limit to leave room for thread numbering like "[1/5] ")
   • Split at natural boundaries in this order of preference:
     1. Paragraph breaks (empty lines)
     2. Sentence endings (periods, question marks, exclamation marks)
     3. Clause boundaries (commas, semicolons)
     4. Word boundaries (last resort)
   • Never split mid-word or mid-sentence unless absolutely necessary
   • Preserve leading/trailing whitespace handling for readability

3. Output Format:

   • Start with a header showing total message count: =� This will create X messages for your Bluesky thread:
   • Separate each message clearly with a visual divider
   • For each message, show:
     • Message label: [N/TOTAL]
     • Character count: (NNN chars) - count includes the "[N/TOTAL] " prefix
     • The actual message text with the [N/TOTAL] prefix included
   • Include empty lines between messages for readability

4. Suggested Improvements (only if improvements are actually applicable):

   • After all messages, add a "=� Suggested improvements:" section
   • Suggest alternative thread break points that improve narrative flow or pacing
   • Propose minor clarity edits that maintain tone and content (grammar, awkward phrasing, etc.)
   • Format: - [Message N] Suggestion here or - [Overall] Suggestion here
   • Only include suggestions that genuinely improve the content

Example Output Format

📊 This will create 2 messages for your Bluesky thread:

━━━ Message 1/2 ━━━
[1/2] Your first message text here that fits within 300 characters. This is the content that will be posted as the first message in the thread.

━━━ Message 2/2 ━━━
[2/2] Your second message continues the thread. Make sure the content flows naturally from the first message and maintains the overall tone.

💡 Suggested improvements:
- Consider a line break earlier in message 1 for better pacing
- Message 2: "continues the thread" → "continues naturally" (slightly more concise)

Now proceed with splitting the user's text according to these instructions.