Terms of Service

1. Acceptance of Terms

By accessing and using Penumbra, you accept and agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use our platform.

2. Description of Service

Penumbra is a cognitive operating system that amplifies human thinking through AI-mediated knowledge composition. We provide tools for semantic workspaces, knowledge graphs, and collaborative intelligence frameworks.

3. User Accounts

• You must provide accurate and complete registration information
• You are responsible for maintaining the security of your account
• You must be at least 18 years old to use Penumbra
• One person or legal entity may maintain only one free account
• You are responsible for all activity under your account

4. Acceptable Use

You agree not to:

• Violate any laws or regulations
• Infringe on intellectual property rights
• Upload malicious code or viruses
• Attempt to gain unauthorized access to our systems
• Use the platform for illegal or harmful purposes
• Interfere with or disrupt the service
• Scrape or harvest data from the platform
• Resell or redistribute our services without permission

5. Content and Intellectual Property

Your Content: You retain all rights to content you create on Penumbra. By using our platform, you grant us a license to host, store, and process your content to provide our services.

Our Platform: Penumbra and its original content, features, and functionality are owned by us and protected by international copyright, trademark, and other intellectual property laws.

6. Payment Terms

• Subscription fees are billed in advance on a recurring basis
• No refunds for partial months or unused services
• We reserve the right to change pricing with 30 days notice
• You are responsible for all taxes
• Failure to pay may result in service suspension

7. Service Availability

While we strive for high availability, we do not guarantee uninterrupted access. We may modify, suspend, or discontinue any part of the service at any time.

8. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. WE DISCLAIM ALL WARRANTIES INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

9. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, PENUMBRA SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES.

10. Termination

We may terminate or suspend your account at any time for violation of these terms. You may cancel your account at any time through your account settings.

11. Changes to Terms

We reserve the right to modify these terms at any time. Material changes will be notified via email or platform notification. Continued use constitutes acceptance of updated terms.

12. Contact