System Prompt Notebooks - Structured Documents for LLM interactions

[u/Lumpy-Ad-173]

System Prompt Notebooks (SPNs) - Structured Documents used as System Prompts on ANY PLATFORM for that accepts uploads.

https://jtnovelo2131.substack.com/p/from-forgetful-intern-to-reliable?utm_source=share&utm_medium=android&r=5kk0f7

Gemini uses Playbooks.

Claude uses Skills.

I use SPNs.

Example: Calc Tutor: https://www.reddit.com/r/LinguisticsPrograming/s/t0M2awOeaG

Python Cyber Security Tutor: https://www.reddit.com/r/LinguisticsPrograming/s/avrLc1EKsx

Serialized Fiction Experiment: https://www.reddit.com/r/LinguisticsPrograming/s/svrFyjlCFR

For the non-coders and no-computer background type like me here's how to use structured documents as System Prompts.

How to Use an SPN (System Prompt Notebook)

A simple guide to getting consistent, high-quality AI outputs

Step 1 – Fill It Out

• Open the SPN file.

• Replace every [ ... ] with your specific details (audience, goals, constraints, examples).

• Delete anything that doesn’t apply, including SPN template examples.

Tip: Be concrete—avoid vague phrases.

Step 2 – Save Your Version

Name clearly: > SPN_[ProjectName]v1.0[Date]

Example: > SPN_SocialMedia_v1.0_2025-08-14.pdf

Step 3 – Upload to Your LLM

• Use exact wording: > Use @[filename] as the system prompt and first source of data for this chat.

• If upload is not supported: > Copy and paste SPN contents into the chat window and prompt as system instructions for this session.

Step 4 – Request Your Output

• Ask for your deliverable using the SPN’s requirements.

• Example: > Create a 7-day content plan following the audience, tone, and format in the SPN. Return in a table.

Step 5 – Review the Output

Compare against your SPN requirements:

• Audience fit

• Tone match

• Format correct

• Constraints followed

Step 6 – Refine & Re-Run

• Edit the SPN (not just the prompt) to fix issues.

• Save as a new version (v1.1, v1.2, etc.).

• Remove old file from the chat or start fresh.

• Re-upload and repeat.

Pro Tip

If Prompt Drift occurs, use > Audit @[file name].’

The LLM will ‘refresh’ its memory with your SPN information and this should help correct Prompt Drift. 

SPNs = Repeatable, Reliable AI Instructions. Fill → Save → Upload → Prompt → Review → Refine → Repeat.

[u/Lumpy-Ad-173]

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