Cosmos
Paid
Build and run automated software development workflows where AI agents handle repetitive tasks and engineers control approvals at quality gates.

About
Cosmos is a Workflow Automation platform for engineering teams. It lets you build, run, and tune automated workflows where AI agents handle the repetitive parts and you stay in control at quality gates.
The core is the Context Engine. It indexes huge codebases—think 400,000 files—without lag and maps dependencies so agents catch bugs buried deep in code you forgot about. You get cloud sessions you can launch, pause, and resume for long-running work like migrations or incident investigation.
It connects to GitHub, GitLab, Slack, Linear, Jira, and webhooks for everything else. You run it in managed cloud sandboxes, on your own machines for sensitive code, or a mix.
Open it if you manage 50+ engineers and need automation across big codebases. Skip it if you are a solo dev or small team below that threshold.
Who Cosmos is best for
Flat team pricing and heavy infrastructure make it fit specific situations.
- Enterprise engineering teams with massive, interconnected multi-repo codebases: The Context Engine keeps up where other tools lag. You get agents that actually understand your full architecture.
- Teams requiring SOC 2 Type II compliance for procurement approval: The certifications are in place. Security teams can sign off faster.
- Organizations with 50+ engineers where per-seat pricing would be worse: The $100/month Business plan covers up to 50 seats. You pay for compute and usage, not headcount.
- DevOps/SRE teams needing incident response automation: Agents do pre-investigation before on-call engineers join. You cut time to resolution.
- Teams already invested in JetBrains IDEs: The integration beats competitors. You stay in your existing workflow.
- Platform teams building repeatable development workflows: Experts let you template and reuse agent setups. You standardize how work gets done.
- Engineering teams with well-scoped implementation and review tasks: Ticket-to-PR and multi-agent code review fit bounded work. You move faster without losing oversight.
- Teams with long-running or repeatable engineering tasks like migrations, reviews, or incident investigation: Cloud sessions handle what your local editor cannot. You resume work instead of starting over.
- Organizations that want to operationalize agentic workflows beyond individual coding assistance: Cosmos is infrastructure, not a chat window. You build systems, not just get suggestions.
- Developers navigating large, unfamiliar repositories who need codebase context: The engine gives you a map. You find your way without asking teammates.
Best things about Cosmos
These are the parts you notice once the setup is done.
- Context Engine on massive codebases: It indexes without lag. You catch bugs in dependencies you did not know existed.
- 66% faster time to merge: Multi-agent code review runs substantive first-pass review in minutes. You unblock PRs waiting for eyes.
- Flat team pricing: $20 or $100 covers up to 50 users. You are not punished for growing the team.
- Security architecture: Proof-of-Possession API with non-extractable keys prevents data exfiltration. You pass audits without extra work.
- Checkpoint system: Context persists across interruptions and team members. You resume instead of restarting.
- Human review gates: Agents stop where you say. You keep control of what ships.
How you use Cosmos
The setup takes planning, then runs itself.
- Connect your repos, Slack, and ticketing tools.
- Pick or build an Expert for the job—code review, ticket-to-PR, vulnerability fix, or incident response.
- Set triggers: PR opened, alert fired, webhook hit, or schedule.
- Define human checkpoints where the agent stops for your approval.
- Launch sessions, monitor progress, and resume when interrupted.
Why you should ignore it
Skip it when the fit is wrong.
- $100/month minimum: The Business plan excludes solo devs and small startups. You need 10+ engineers to justify the cost.
- Credit-based billing with 40% LLM service fee: Costs spike past your included balance. You get surprise charges.
- Intent agent macOS-only: Mixed teams cannot use a key feature. You are locked to Apple machines.
- Support delays: Billing issues can sit for 10 days. You wait when money is on the line.
- Inline completions removed from individual tiers: Longtime users lost a feature they used daily. You may resent the downgrade.
- Not for unbounded tasks: You still validate everything. It does not write production code unsupervised.
