# Basic Skill > Summarize small CSV files and identify the highest revenue month. Use when this capability is needed. - Skill: `tomevault-io/basic-skill` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/basic-skill` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/basic-skill/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Data & Analytics - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/basic-skill --- When given a CSV file with monthly revenue, identify the month with the highest revenue and explain the result concisely. Prefer a short answer with the winning month, the revenue value, and a one sentence rationale. --- > Source: [darkrishabh/agent-skills-eval](https://github.com/darkrishabh/agent-skills-eval) — distributed by [TomeVault](https://tomevault.io).