# What are Cosine’s core features?

**Cosine’s core features are designed to make it a true autonomous software engineer — capable of planning, coding, testing, documenting, and learning within your existing workflows.**

***

### Key capabilities

#### Intelligent task planning

Cosine doesn’t just generate code — it plans how to solve a task. Using its reinforcement-trained model (**Genie**), it breaks work into subtasks, identifies dependencies, and sequences them logically before writing a single line of code.

#### Deep code search and context retrieval

Cosine reads and understands complex, unfamiliar codebases. It uses optimised retrieval techniques to locate relevant files, functions, and dependencies — even across large monorepos or legacy systems.

#### Automated testing & validation

Every output goes through Cosine’s test–validate–iterate loop. It runs or generates unit and integration tests, evaluates outcomes, and only raises a PR when results pass validation.

#### AutoDoc (automated documentation)

Cosine’s **AutoDoc** feature generates or updates technical documentation automatically. It improves onboarding, code comprehension, and long-term maintainability.

#### Tool use and integrations

Cosine integrates natively with tools engineers already use:

* Task managers: Jira, Linear
* Source control: GitHub, GitLab, Bitbucket
* CI/CD: CircleCI, Jenkins, GitHub Actions
* Collaboration: Slack, Microsoft Teams

You can trigger Cosine tasks from any of these environments, making it feel like an extension of your team.

#### Guardrails & evaluation framework

Cosine minimises hallucinations with a multi-layered eval system. It continuously scores and ranks model outputs, using internal metrics and user feedback to improve accuracy and reliability.

***

### Why these features matter

Together, these capabilities allow Cosine to handle full-lifecycle engineering tasks — not just code suggestions. It’s the first agent designed for real production environments, not just IDE demos.

***

### Related pages

* What tasks can Cosine complete end-to-end?
* How does Cosine minimise hallucinations and ensure code quality?
* How does Cosine integrate with Jira, GitHub, GitLab, Azure DevOps, CircleCI, Jenkins, Slack, Teams?

→ Next: [Which programming languages, frameworks, and stacks are supported?](https://docs.cosine.sh/~/revisions/G57QESjWqGjHVFtA60NI/faqs/getting-started/which-programming-languages-frameworks-and-stacks-are-supported)