STY AI Agent System: A Claude-Powered Intelligent Assistant for Business Scenarios

STY AI Agent System is a commercial AI Agent system built on the Claude API, focusing on three core areas: financial analysis, data analysis, and business reporting. It uses a skill-driven architecture, supports file interaction and session management, and provides structured AI-assisted decision support for business analysts, financial professionals, and others.

In the digital transformation of enterprises, implementing AI capabilities into business scenarios is a major challenge. STY AI Agent System is positioned as a "commercial AI Agent" rather than a general-purpose assistant. Its target users include business analysts, financial analysts, data scientists, consultants, startup teams, and business school students. It is deeply optimized for business scenarios to provide professional structured outputs.

The system builds skill modules around three areas: financial analysis, data analysis, and business reporting:

• Financial analysis: Covers WACC calculation, stock research, portfolio analysis, etc.
• Data analysis: Supports EDA, missing value handling, feature engineering suggestions, etc.
• Business reporting: Generates executive summaries, board materials, etc. It adopts a skill-driven architecture, using predefined SKILL.md to guide Claude's output. Skills are organized by domain (e.g., finance_skills, data_skills). The matching mechanism is: parse request → scan skills → load SKILL.md → generate response. Additionally, it supports file input (txt, md, csv, xlsx, pdf) and output saving, as well as session management (temporary storage, not retained after restart).

Tech Stack: Node.js + TypeScript, Anthropic Claude API, Python auxiliary scripts (for xlsx/pdf processing), environment variable configuration. Project Structure: Includes skill directories (e.g., finance_skills), scripts (file extraction), src (core Agent logic, Claude client, skill registry, etc.). Usage Examples:

• Financial analysis: sty-agent finance \\"Explain the key assumptions of WACC calculation\\"
• Data analysis: sty-agent data \\"Run EDA and identify business insights\\" --file sales.csv
• Report generation: sty-agent report \\"Convert to executive summary\\" --file analysis.txt --output outputs/summary.md Workflow: User command → CLI reception → File reading → Core Agent analysis → Skill matching → Build Claude request → Return response.

STY AI Agent System transforms the general-purpose large language model Claude into a professional tool for the business analysis field. Through a skill-driven architecture, file interaction, and domain prompt engineering, it provides structured AI-assisted workflows for business users. Although it is in the early development stage, its design concept is clear: to make AI a capable assistant rather than a replacement for business professionals. It is an open-source project worth paying attention to.

Prompt Engineering Recommendations:

1. Clearly specify the analysis type (e.g., finance/data/report);
2. Attach relevant documents via --file;
3. Describe requirements in detail and specify the output format;
4. Iteratively optimize the request. Safety and Compliance Reminder: Financial and investment outputs are for reference only and should not be regarded as financial advice. Users need to verify calculations, assumptions, data sources, and recommendations before making decisions.

Known Limitations: Not published to npm (requires source code installation), depends on Anthropic API key, simple skill matching (keyword detection), non-persistent sessions, limited parsing of complex Excel/PDF files. Development Plans: Expand the skill library, add skill priority scoring, support custom skills, integrate external tools, publish to npm, add more output formats (PDF/PPT).