Linear

Linear is a product development system from Linear, founded in 2019, that combines issue tracking, project planning, code review, and AI agents in one workspace. The company describes it as purpose-built for product teams and designed for workflows shared by humans and agents, from drafting PRDs to pushing PRs.

What It Is

Linear is a planning and delivery tool for product and engineering teams. Work is organized into issues, projects, cycles, initiatives, and documents. Customer feedback and conversations from tools like Slack can be turned into issues that are routed, labeled, and prioritized through triage. Roadmaps and project overviews hold specs, customer requests, and updates.

Agents and automation

Linear includes a built-in agent that can synthesize customer feedback, draft PRDs, and delegate issues. Coding sessions let a user assign a task to Linear Agent, which the changelog says works in a secure cloud environment to write and test code before opening a pull request for review. Teams can also assign work to third-party coding agents such as Claude, Codex, and Cursor. Loops are recurring agent workflows that respond to workspace activity such as changes to initiatives, projects, and cycles, edit documents, and post updates to Slack.

Build, review, and ship

Linear Diffs and Reviews cover pull request review, with git automations, guided reviews, and releases. A changelog entry from October 2026 describes stacked pull requests displayed in Diffs, showing review, CI, and merge status. Insights and dashboards track how teams and agents work together.

Enterprise and security

The enterprise page lists SOC2, SSO, audit logs, and granular permissions, plus migration tooling and integrations with GitHub, Slack, and Microsoft Teams. Linear states it powers over 40,000 product teams.