[rendylong]

Hi HN!

There's a quiet revolution happening in AI: agents are gaining the ability to actually USE computers, not just talk about using them.

We gave our AI agent filesystem access. It changed everything.

- Before: Advice "You should use pandas to merge those Excel files, then create a pivot table..."

- After: Action Agent opens files, writes Python, generates Excel, saves to disk "Here's your summary report: /cache/analysis_2025.xlsx"

Here's what we've done： - File system access (read/write from user's document library)

- Office document parsing (Excel → structured data for AI)

- Code execution (agent writes & runs Python)

- Output generation (creates Excel, charts, reports)

- Sandboxed environment (Docker isolation for security)

This isn't just about "productivity tools." It's about the *fundamental shift from AI-as-advisor to AI-as-coworker*.

The moment AI can: - Access your files - Execute code - Generate outputs

...is the moment it can start replacing repetitive white-collar work.