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.

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 IDEs and hosts does Cosine support?

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