Terms and Conditions

Last updated: 27 March 2026

These Terms and Conditions ("Terms") constitute a legally binding agreement between you ("Customer", "you") and Alessandro Palazzesi, operating as Decern, VAT number IT12930530014 (hereinafter referred to as "Decern", "we", "us", or "our"). By accessing or using the Decern platform, website, APIs, CLI tools, or any related services (collectively, the "Service"), you agree to be bound by these Terms in their entirety. If you do not agree, you must not use the Service. Decern provides a CI-based enforcement system that evaluates pull requests against defined architectural decisions and may block changes based on configured policies.

1. Definitions

"Service" means the Decern platform, including the web application, APIs, CLI gate tool (decern-gate), documentation, and all associated infrastructure operated by Decern.

"Customer Data" means any data, code diffs, decision records, configuration, or other content that you or your authorized users upload, submit, or transmit through the Service.

"LLM Judge" means the AI-powered analysis feature that evaluates code changes against documented architectural decisions using a third-party or customer-provided large language model.

"Subscription" means the paid or free plan selected by the Customer, as described on the pricing page.

"Authorized User" means any individual granted access to the Service through the Customer's account.

"BYO LLM" (Bring Your Own LLM) means the configuration where the Customer provides their own API keys for a third-party large language model provider.

2. Acceptance of Terms

By creating an account, accessing the Service, or using any part of the platform, you represent and warrant that you have the legal authority to enter into these Terms on behalf of yourself or the organization you represent.

If you are using the Service on behalf of a company, organization, or other legal entity, you represent that you have the authority to bind that entity to these Terms. In such case, "you" and "Customer" refer to that entity.

You must be at least 18 years of age to use the Service. By using the Service, you represent and warrant that you meet this requirement.

3. Account Registration and Security

You must provide accurate, complete, and current information during registration and keep your account information up to date at all times.

You are solely responsible for maintaining the confidentiality of your account credentials, including passwords and API tokens. You are responsible for all activities that occur under your account, whether or not authorized by you.

You must notify us immediately at opensource@decern.dev if you become aware of any unauthorized use of your account or any security breach.

Decern reserves the right to suspend or terminate any account that is reasonably believed has been compromised or is being used in violation of these Terms.

4. Subscription Plans and Payment

The Service is offered under multiple subscription tiers (Free, Team, Business, and Self-Hosted/Enterprise), each with different features and usage limits as described on the pricing page.

Paid subscriptions are billed monthly in advance via Stripe. All fees are quoted in Euros (EUR) and are exclusive of applicable taxes, which will be added where required by law.

You authorize Decern to charge your designated payment method for all fees associated with your selected plan. Failure to pay may result in suspension or termination of your access to the Service.

Decern reserves the right to change pricing at any time. Price changes for existing subscriptions will take effect at the start of the next billing cycle, with at least 30 days' prior notice.

All fees are non-refundable except where required by applicable law. No refunds or credits will be issued for partial months of service, downgrades, or unused features.

5. Free Plan

The Free plan provides access to the Service in observation mode only. It is offered at no charge and is subject to fair-use limitations.

Decern reserves the right to modify, limit, or discontinue the Free plan at any time without prior notice. Free plan users have no guaranteed service level.

Decern may impose usage limits, rate limits, or feature restrictions on the Free plan at its sole discretion to ensure platform stability.

6. Plan Changes and Downgrades

You may upgrade or downgrade your subscription at any time through the Service. Upgrades take effect immediately; downgrades take effect at the end of the current billing cycle.

When downgrading, features and data associated with higher-tier plans may become inaccessible. Decern is not responsible for any loss of access to features or data resulting from a downgrade.

If you exceed the usage limits of your current plan, Decern may restrict access to certain features until you upgrade or reduce your usage.

7. License Grant and Restrictions

Subject to your compliance with these Terms and payment of applicable fees, Decern grants you a limited, non-exclusive, non-transferable, revocable license to access and use the Service during the term of your subscription.

This license does not include the right to: (a) sublicense, resell, lease, or distribute the Service or any part of it; (b) modify, adapt, reverse-engineer, decompile, or disassemble any part of the Service; (c) use the Service to build a competing product or service; (d) access the Service through automated means (bots, scrapers) except through the official CLI and API; (e) remove or alter any proprietary notices, labels, or marks on the Service.

Decern reserves all rights not expressly granted in these Terms.

8. Acceptable Use Policy

You agree not to use the Service to: (a) violate any applicable law, regulation, or third-party rights; (b) upload or transmit malicious code, viruses, or harmful content; (c) interfere with, disrupt, or compromise the integrity or performance of the Service or its underlying systems; (d) attempt to gain unauthorized access to the Service, other accounts, or related systems; (e) use the Service to store or process sensitive personal data (e.g., health records, financial account numbers) unless explicitly agreed in writing.

You are solely responsible for ensuring that your use of the Service, including the content of your Customer Data and architectural decisions, complies with all applicable laws and regulations.

Decern reserves the right to suspend or terminate access to any Customer that violates this Acceptable Use Policy, without prior notice and without refund.

9. Intellectual Property

The Service, including all software, code, algorithms, designs, text, graphics, logos, and trademarks, is and remains the exclusive property of Decern and its licensors. Nothing in these Terms transfers any ownership rights to you.

You retain all ownership rights in your Customer Data. By using the Service, you grant Decern a limited, non-exclusive license to process your Customer Data solely to provide and improve the Service.

Any feedback, suggestions, or ideas you provide regarding the Service may be used by Decern without obligation or compensation to you.

10. Customer Data and Responsibility

You are solely responsible for the accuracy, quality, integrity, legality, and appropriateness of all Customer Data.

Decern does not monitor, verify, or endorse Customer Data. Decern is not liable for any Customer Data submitted by you or your Authorized Users.

You are responsible for maintaining independent backups of your Customer Data and for exporting any data you wish to retain prior to account termination or plan downgrade. Decern does not guarantee against data loss and shall not be liable for any loss, corruption, or destruction of Customer Data, regardless of cause.

Upon termination of your account or downgrade to a lower plan, Customer Data associated with features no longer available may be permanently deleted after a 30-day grace period without further notice.

11. Third-Party LLM Providers and AI Disclaimer

The LLM Judge feature relies on third-party large language model providers (e.g., OpenAI, Anthropic). When using BYO LLM, you connect your own API key to a provider of your choice. When using Decern-provided LLM, Decern selects the provider.

Decern does not control, warrant, or guarantee the output, accuracy, availability, or reliability of any third-party LLM provider. LLM outputs are probabilistic and may contain errors, hallucinations, or inaccurate assessments.

THE LLM JUDGE IS AN ADVISORY TOOL. It does not replace human judgment, code review, security audits, or professional architectural assessment. You are solely responsible for all decisions made based on or influenced by LLM Judge outputs.

Decern is not liable for any damages, losses, security vulnerabilities, production incidents, or business impact arising from reliance on LLM Judge outputs, whether in observation or blocking mode.

When using BYO LLM, you are solely responsible for compliance with the third-party provider's terms of service, usage policies, and data processing agreements. Decern has no liability for your relationship with any third-party LLM provider.

You acknowledge that code diffs and decision content may be transmitted to third-party LLM providers for analysis. It is your responsibility to ensure that no data subject to legal restrictions (e.g., trade secrets, regulated data) is processed through the LLM Judge without appropriate safeguards.

You acknowledge that the Service may block, delay, or otherwise affect your development workflow, including preventing pull requests from being merged based on configured rules or LLM evaluations. You are solely responsible for reviewing and configuring enforcement rules. Decern is not liable for any delays, disruptions, or operational impacts caused by enforcement actions.

12. Self-Hosted Deployment

Self-Hosted (Enterprise) customers receive a license to deploy the Service on their own infrastructure. The specific terms of each self-hosted deployment are governed by a separate agreement.

For self-hosted deployments, the Customer is solely responsible for: (a) infrastructure provisioning, maintenance, and security; (b) backups and disaster recovery; (c) compliance with all applicable laws and regulations in the jurisdictions where the software is deployed; (d) network security and access control.

Decern provides the software on an "as-is" basis for self-hosted deployments and does not guarantee compatibility with all infrastructure configurations. Support is provided according to the terms of the applicable support agreement.

Decern has no responsibility for the operation, security, or performance of self-hosted deployments.

13. Service Availability and Support

Decern will make commercially reasonable efforts to maintain the availability of the Service. However, the Service is provided on an "as-available" basis, and Decern does not guarantee uninterrupted or error-free operation.

The Service may be temporarily unavailable due to scheduled maintenance, emergency maintenance, force majeure events, third-party service outages (including LLM providers, cloud hosting, or payment processors), or circumstances beyond Decern's reasonable control.

Decern does not provide guaranteed SLAs (Service Level Agreements) unless separately agreed in writing for Enterprise customers.

Support is provided on a best-effort basis via email at opensource@decern.dev. Response times are not guaranteed unless otherwise agreed in a separate support agreement.

14. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE. DECERN EXPRESSLY DISCLAIMS ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

DECERN DOES NOT WARRANT THAT: (A) THE SERVICE WILL MEET YOUR REQUIREMENTS OR EXPECTATIONS; (B) THE SERVICE WILL BE UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE; (C) THE RESULTS OBTAINED FROM THE SERVICE, INCLUDING LLM JUDGE OUTPUTS, WILL BE ACCURATE, RELIABLE, OR COMPLETE; (D) ANY DEFECTS IN THE SERVICE WILL BE CORRECTED.

NO ADVICE OR INFORMATION, WHETHER ORAL OR WRITTEN, OBTAINED FROM DECERN OR THROUGH THE SERVICE SHALL CREATE ANY WARRANTY NOT EXPRESSLY STATED IN THESE TERMS.

The LLM Judge outputs are probabilistic in nature and should not be relied upon as the sole basis for architectural, security, compliance, or business decisions. The Customer acknowledges that AI-generated assessments may be incorrect and accepts full responsibility for decisions made using the Service.

15. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, DECERN, ITS DIRECTORS, OFFICERS, EMPLOYEES, AGENTS, AND AFFILIATES SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, PUNITIVE, OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO DAMAGES FOR LOSS OF PROFITS, REVENUE, DATA, GOODWILL, BUSINESS OPPORTUNITY, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR IN CONNECTION WITH THE SERVICE, EVEN IF DECERN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

DECERN'S TOTAL AGGREGATE LIABILITY FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE SHALL NOT EXCEED THE GREATER OF: (A) THE TOTAL FEES PAID BY YOU TO DECERN IN THE TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE EVENT GIVING RISE TO THE CLAIM; OR (B) ONE HUNDRED EUROS (€100).

THE LIMITATIONS IN THIS SECTION APPLY REGARDLESS OF THE THEORY OF LIABILITY, WHETHER BASED ON CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR ANY OTHER LEGAL THEORY, AND EVEN IF A REMEDY SET FORTH HEREIN IS FOUND TO HAVE FAILED ITS ESSENTIAL PURPOSE.

Without limiting the foregoing, Decern shall have no liability for: (a) any actions taken or not taken based on LLM Judge outputs; (b) blocked or approved PRs and their downstream effects on your development workflow, production systems, or business operations; (c) data transmitted to third-party LLM providers; (d) Customer Data loss or corruption; (e) service interruptions caused by third-party providers or force majeure events.

16. Indemnification

You agree to indemnify, defend, and hold harmless Decern from and against any and all claims, liabilities, damages, losses, costs, and expenses (including reasonable attorneys' fees) arising out of or in connection with: (a) your use of the Service; (b) your Customer Data; (c) your violation of these Terms; (d) your violation of any applicable law or regulation; (e) your violation of any third-party rights, including intellectual property rights.

Decern reserves the right to assume the exclusive defense and control of any matter subject to indemnification by you, at your expense. You agree to cooperate with Decern's defense of any such claim.

17. Termination

You may terminate your account at any time by contacting us at opensource@decern.dev or through the account settings in the Service.

Decern may suspend or terminate your access to the Service at any time, with or without cause, with or without notice. Grounds for termination include, but are not limited to: (a) violation of these Terms; (b) non-payment of fees; (c) abusive or fraudulent use of the Service; (d) request by law enforcement or government agency; (e) extended inactivity.

Upon termination: (a) your license to use the Service terminates immediately; (b) you remain liable for all fees accrued prior to termination; (c) provisions that by their nature should survive termination shall survive, including Sections on Intellectual Property, Disclaimer of Warranties, Limitation of Liability, Indemnification, Governing Law, and this Termination section.

Decern shall not be liable to you or any third party for any termination of your access to the Service.

18. Confidentiality

Each party agrees to keep confidential any non-public information disclosed by the other party that is designated as confidential or that reasonably should be understood to be confidential given the nature of the information and the circumstances of disclosure.

Confidential information does not include information that: (a) is or becomes publicly available without breach of these Terms; (b) was already known to the receiving party without restriction; (c) is independently developed without use of the disclosing party's confidential information; (d) is rightfully received from a third party without restriction.

Each party may disclose confidential information if required by law, regulation, or court order, provided that the disclosing party is given prompt notice (where legally permitted) and reasonable assistance in opposing such disclosure.

19. Data Protection and Privacy

Decern processes personal data in accordance with applicable data protection laws, including the EU General Data Protection Regulation (GDPR) where applicable.

By using the Service, you consent to the collection and processing of data as described in the Privacy Policy. Decern collects only the minimum data necessary to provide the Service.

For BYO LLM configurations, Customer Data (including code diffs) may be transmitted to the third-party LLM provider selected by the Customer. Decern is not the data controller for data processed by third-party LLM providers under BYO LLM configurations.

Decern implements commercially reasonable technical and organizational security measures to protect Customer Data. However, no method of transmission over the internet or electronic storage is 100% secure, and Decern cannot guarantee absolute security.

20. Modifications to Terms

Decern reserves the right to modify these Terms at any time. Material changes will be communicated by posting the updated Terms on the website and updating the "Last updated" date.

For material changes that adversely affect your rights, Decern will make reasonable efforts to provide at least 30 days' advance notice via the email address associated with your account.

Your continued use of the Service after any modification constitutes your acceptance of the revised Terms. If you do not agree with the modified Terms, you must discontinue use of the Service and terminate your account.

21. Governing Law and Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of Italy, without regard to its conflict of law provisions.

Any dispute arising out of or in connection with these Terms shall be submitted to the exclusive jurisdiction of the courts of Italy.

Before initiating any legal proceedings, both parties agree to attempt to resolve disputes through good-faith negotiation for a period of at least 30 days.

Nothing in these Terms shall prevent Decern from seeking injunctive or other equitable relief in any court of competent jurisdiction to protect its intellectual property or confidential information.

22. Severability

If any provision of these Terms is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, the remaining provisions shall continue in full force and effect.

The invalid or unenforceable provision shall be modified to the minimum extent necessary to make it valid and enforceable while preserving the original intent of the parties.

23. Entire Agreement

These Terms, together with the Privacy Policy and any applicable order forms or separate agreements for Enterprise customers, constitute the entire agreement between you and Decern regarding the Service.

These Terms supersede all prior and contemporaneous understandings, agreements, representations, and warranties, both written and oral, regarding the Service.

No waiver of any provision of these Terms shall be deemed a further or continuing waiver of that provision or any other provision. Decern's failure to enforce any right or provision of these Terms shall not constitute a waiver of such right or provision.

24. Contact Information

For any questions regarding these Terms, please contact us at: opensource@decern.dev

Alessandro Palazzesi β€” Decern. All correspondence should be directed to the email address above.