Reinike AI — Instant File Automation with GPT-5 Codex

Reinike AI is a desktop tool that transforms natural language instructions into Python scripts executed locally in just seconds. It is designed for practical office automation: Excel, Word, PowerPoint, PDFs, ZIP/RAR, and file operations. Unlike cloud bots or background schedulers, Reinike AI focuses on instant tasks that run while the tool is open, giving you immediate results without coding knowledge.

System Architecture

Reinike AI is built around a straightforward but powerful pipeline:

User Instruction — The user enters a command in natural language (English, Spanish, German, etc.).
System Prompt — A carefully designed system prompt is applied, optimized for:
- Generating Python code without extra comments for faster runtime.
- Ensuring compatibility with the Python version bundled with the app.
- Embedding safety rules to block destructive or insecure code.
Model Processing — The instruction plus system prompt are sent to GPT-5 Codex via API.
Code Generation — GPT-5 Codex outputs optimized Python for the requested task.
Local Execution — The script runs instantly inside a controlled environment on the user’s PC.
Results — Modified or created files appear directly in the selected folder, with recovery options if needed.

User Interface

Folder Selection: pick the target directory where files will be created or modified.
Fast Toggle: activates low-latency execution for simple tasks; deactivate for more complex workflows.
Instruction Box: type your request naturally (e.g., “create 10 Excel files with cash flow tables”).
Send Button: dispatch the instruction to GPT-5 Codex and run the generated Python instantly.
Recover Files: undo or restore outputs from previous executions if something went wrong.
OCR and Save: extract text from PDFs/images or store prompts as reusable templates.

Supported File Operations

Microsoft Excel

Generate sheets, calculate values, create charts, analyze data, extract or rename worksheets across multiple files in one step.

Microsoft Word

Insert or format text, convert documents to other formats, or merge Word files in bulk.

Microsoft PowerPoint

Add or extract slides and images, or convert PowerPoint presentations into other file types.

PDF

Extract text, split or merge files, search across documents, and use OCR for scanned PDFs.

ZIP & WinRAR

Unpack multiple archives at once or compress files into new RAR/ZIP bundles.

Folders & Files

Rename, move, or reorganize files into new folders on the fly.

Execution Workflow

Every task in Reinike AI is designed to finish in a few seconds. The tool does not run in the background or overnight. Once the window is closed, tasks stop. This makes it ideal for quick, one-off automation such as:

Generate multiple Excel reports with formulas and charts instantly.
Merge or split PDF documents on the spot.
Bulk rename Word or Excel files to match a naming pattern.
Extract archives and reorganize contents into new folders.
Insert slides into several PowerPoint presentations at once.

Safety and System Prompt Design

A key strength of Reinike AI is its system prompt engineering. The system prompt includes strict rules that prevent unsafe operations and enforce consistent, optimized outputs:

No unnecessary comments in generated code — execution is faster and cleaner.
Python compatibility with the embedded runtime shipped with the tool.
Blocked operations such as network requests, arbitrary downloads, or destructive commands outside the chosen folder.
Auto-recovery for file modifications with the “Recover Files” button.
Minimal surface area: the model is optimized to produce only what is needed for execution, nothing extra.