tersify-prompt

Tersify Prompt

Compresses agent-instruction prompts to be maximally terse while preserving full intent.

Modes

File Mode (when INPUT is a valid file path):

1. Read the file content
2. Pass to tersifier agent
3. Extract compressed prompt from output
4. Update the file with compressed version
5. Display change summary

Inline Mode (when INPUT is prompt text):

1. Pass prompt directly to tersifier agent
2. Display compressed prompt and change log

Workflow

Step 1: Detect Mode

Check if INPUT is a file path:

Use Bash: test -f "{INPUT}" && echo "file" || echo "inline"

Step 2: Prepare Input

If file mode:

• Read the file using Read tool
• Store the file path for later update
• Extract file content as INPUT_PROMPT

If inline mode:

• Use INPUT directly as INPUT_PROMPT

Step 3: Spawn Tersifier Agent

{% dispatch_agent "rp1-utils:prompt-tersifier" %} {INPUT_PROMPT content here} {% enddispatch_agent %}

Step 4: Process Output

The agent returns output in this format:

<<<COMPRESSED_PROMPT
[compressed content]
COMPRESSED_PROMPT>>>

<<<CHANGES
[op] ref: description
  - from: "short excerpt"
  - to: "short excerpt"
  - note: reason

[op] ref: description
  ...
CHANGES>>>

Parse the output:

• Extract content between <<<COMPRESSED_PROMPT and COMPRESSED_PROMPT>>>
• Extract the changes list between <<<CHANGES and CHANGES>>>

Step 5: Finalize

If file mode:

1. Use Write tool to update the original file with the compressed prompt
2. Display to user:

   Updated: {file_path}
   
   ## Changes Made
   {changes table}
   

If inline mode:

1. Display to user:

   ## Compressed Prompt
   {compressed prompt}
   
   ## Changes Made
   {changes table}
   

Examples

File mode:

/tersify-prompt plugins/base/agents/kb-spatial-analyzer.md

Output: Updates file in place, shows change summary.

Inline mode:

/tersify-prompt "You are a helpful assistant that helps users write code. Always be polite and thorough in your responses. Make sure to explain your reasoning step by step."

Output: Displays compressed prompt and change log.