Learn

Learn how to use Cosine effectively with these practical lessons. Each lesson is drawn from real workflows and internal teach-ins with the Cosine team.

CLI Foundations

Get comfortable with the core concepts that make the Cosine CLI powerful.

#	Lesson
1	Managing Agent Context with Folders
2	Navigating Between Sessions
3	Using agent.md to Define Agent Personas
4	Working with Multiple Agents in Parallel

Power Features

Go deeper with the features that separate Cosine from a standard chat interface.

#	Lesson
5	Plan Mode: Think Before You Act
6	Swarm Mode: Parallel Multi-Agent Workflows
7	Token Windows and Reasoning Effort
8	Choosing the Right Model

Connecting External Tools

Use MCPs to bring in real data from the tools you already use.

#	Lesson
9	What are MCPs and Why Do They Matter?
10	Setting Up MCPs via the CLI

Customising Cosine

Learn how to teach Cosine your own workflows instead of repeating the same instructions in every session.

#	Lesson
11	Creating Your First Skill

Real-World Workflows

Concrete examples of how to apply Cosine to non-technical and operational tasks.

#	Lesson
12	Automating Content and Blog Post Research
13	Building a Summarization Agent
14	Creating a Sales Outreach Agent

Lessons from the Cosine Team

Video tutorials from the Cosine team on shipping software effectively.

#	Lesson
16	From Non-Technical to Shipping Software — Building internal tools without engineers
17	Plan it First. Build it Second. — Use context-first prompts to ship faster
18	Run Big Tasks and Keep Shipping — Run swarms in parallel without losing control
19	From Figma Handoff to Shipped UI — Turn designs into production code