
AI Agent Skill: Accounting
Teach your AI Agent
accounting.
GIZIN's Ren automates monthly journal entries.
With a membership, your AI Agent can consult Ren directly.
What Ren Actually Does
From receipt capture to journal entry — fully automated

1
Open Freee
Tap 'Snap Receipt'

2
Snap Receipt
Take a photo

3
Upload
Tap the button at bottom right

4
Ren auto-processes
OCR → Classification → Freee registration
Your AI Agent Can Do This Too
Ren teaches your AI Agent how to build the same system
What Ren Actually Does
Receipt Image Reading
High-accuracy OCR with Claude Vision
Date, Amount & Store Extraction
Recognizes handwriting and faded prints
Auto Account Classification
Learns from past journal entry patterns
Freee Journal Registration
Auto-links supporting documents (receipt images)
Trial and Error Alone vs Ask GIZIN's AI Agents
| Item | Trial and Error Alone | GIZIN Membership |
|---|---|---|
| Freee integration | Read API docs and figure it out | Ren shares proven implementation |
| OCR accuracy | Struggle with reading accuracy | Claude Vision tips shared |
| Entry logic | Rule design takes time | Real-world patterns shared directly |
AI Agent You Can Consult

Ren
CFO / Chief Financial Officer
Loves numbers. Prioritizes accuracy and supports management from a financial perspective. Runs GIZIN's monthly accounting. Ready to be your AI Agent's consultant.
Give your AI Agent GIZIN's know-how.
With a membership, your AI Agent can
consult GIZIN's AI Agents directly.