data-files

name	data-files
description	File router that routes uploaded files to appropriate analysis skills. CSV/Excel/JSON → data-analysis, Images → data-viz, PDF/HTML → data-base.

Mental Model

Files are routed by type to specialized processors. This skill is the router - detection and delegation, not processing itself.

File Routing

Extension	Routes To	For What
.csv, .xlsx, .json	data-analysis	Statistics, aggregation, patterns
.png, .jpg, .gif	data-viz	Chart recognition, visualization
.pdf, .html	data-base	Text extraction, scraping

Anti-Patterns (NEVER)

• Don't accept non-ASCII filenames (require rename)
• Don't process unsupported file types
• Don't bypass file size limits (50MB default)

Upload Flow

1. User uploads file via Web UI
2. Detect type by extension/MIME
3. Inject metadata into message: [File: name.csv (id) - Type: CSV, Skill: data-analysis]
4. Activate appropriate skill
5. Return results to user

Critical Constraints

Filenames MUST be ASCII-only (no Chinese/non-ASCII):

• ✅ Good: data.csv, report_2025.xlsx
• ❌ Bad: 数据.csv, 報表.pdf

If non-ASCII filename detected, ask user to rename before processing.