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Legal · LiquidSiliconDocument  TOS-01

Terms of Service

Effective July 17, 2026Last updated July 16, 2026

The short version

  • LiquidSilicon is AI-assisted, configurable business software operated by Engineering Square LLC. Agents propose changes; a human approves anything consequential.
  • You own your data and configurations. You grant us only the limited license we need to run the service for you.
  • AI proposals can be wrong — you review and approve them, and they are not professional advice. If you bring your own model key, that key and its provider relationship are yours to manage.
  • Billing runs through Stripe; you can export your data for 30 days after termination. Governed by Texas law, venue in Travis County.
  • 01The service
  • 02Accounts and eligibility
  • 03Acceptable use
  • 04Your data and ownership
  • 05Bring your own key
  • 06AI output disclaimer
  • 07Availability
  • 08Fees and billing
  • 09Termination and data export
  • 10Disclaimers and liability
  • 11Governing law
  • 12Changes to these terms
  • 13Contact

§ 01 — The service

The service

LiquidSilicon (the “Service”) is a configurable, AI-assisted business software platform operated by Engineering Square LLC (“we,” “us”). The Service generates and adapts software for your operation from your own description of the business, using a set of AI agents that observe, advise, build, guard, and learn. Every consequential change waits on a human approval gate that you control. By creating an account or using the Service, you agree to these Terms on behalf of yourself and any organization you represent.

§ 02 — Accounts

Accounts and eligibility

  • You must be at least 18 and able to form a binding contract to use the Service.
  • You are responsible for the accuracy of your account information and for all activity under your credentials.
  • Keep your credentials confidential and notify us promptly of any unauthorized use.
  • If you use the Service for an organization, you represent that you are authorized to bind it to these Terms.

§ 03 — Acceptable use

Acceptable use

You agree not to:

  • Break the law, infringe others’ rights, or violate a third party’s terms (including your AI provider’s) using the Service.
  • Upload malware, attempt to breach security or tenant isolation, or access data that is not yours.
  • Reverse engineer, resell, or provide the Service to third parties except as expressly permitted.
  • Overload or interfere with the Service’s infrastructure, or circumvent usage limits.
  • Use the Service to generate unlawful, harmful, or deceptive content, or to make automated decisions about people without appropriate human oversight.

We may suspend access to address a material or ongoing violation, and will use reasonable efforts to notify you when we do.

§ 04 — Ownership

Your data and ownership

You own your data and your configurations — the business descriptions, entities, records, documents, and the software configuration the platform generates for you (together, “Customer Data”). You grant us a limited, non-exclusive license to host, process, and display Customer Data solely to operate and support the Service for you, including running the agent loop and maintaining the event log.

We do not use your Customer Data to train our own models, and we do not sell it. We own the Service itself — its software, models we provide, and underlying technology — and nothing here transfers that to you. Feedback you send us may be used to improve the Service without obligation to you.

§ 05 — BYOK

Bring your own key

You may connect your own AI provider key (“BYOK”). If you do:

  • Inference traffic goes directly to your provider under your own agreement with them; their terms, pricing, and availability govern it.
  • You are responsible for the security, validity, cost, and usage limits of your key, and for compliance with your provider’s terms.
  • We encrypt keys you supply at rest and use them only to route your inference requests. You can rotate or remove a key at any time.
  • We are not liable for your provider’s outages, charges, model changes, or content decisions.

If you instead use the model allowance included with your plan, that usage is covered by your fees and by our agreement with the underlying AI provider.

§ 06 — AI disclaimer

AI output disclaimer

The Service uses AI to generate proposals, drafts, and recommendations. AI output can be inaccurate, incomplete, or unsuitable for your situation. The human approval gate exists for exactly this reason: you are responsible for reviewing and approving any change before it takes effect, and for the outcomes of changes you approve.

Nothing the Service produces is legal, financial, tax, medical, or other professional advice. Do not rely on AI output as a substitute for qualified professional judgment or for your own testing and review.

§ 07 — Availability

Availability

We work to keep the Service available and reliable, but on self-serve tiers it is provided without a service-level agreement (SLA) or uptime guarantee. We may perform maintenance, update features, or modify the Service over time. A committed SLA, if any, applies only where set out in a separate written agreement.

§ 08 — Fees

Fees and billing

  • Paid plans are billed through Stripe on a recurring basis. By subscribing you authorize recurring charges until you cancel.
  • Plan changes take effect per Stripe’s proration, so upgrades and downgrades are adjusted for the portion of the billing period used.
  • Fees are exclusive of taxes, which you are responsible for where applicable.
  • Except where required by law, payments are non-refundable. You can cancel anytime; cancellation stops future renewals and takes effect at the end of the current period.
  • The free observe-only tier is provided as-is and may change.

§ 09 — Termination

Termination and data export

You may stop using and delete your account at any time. We may suspend or terminate access for a material breach of these Terms, for legal or security reasons, or on notice if we discontinue the Service. After termination, we provide a 30-day window during which you can export your Customer Data. After that window, we delete or irreversibly anonymize Customer Data except where retention is required by law. Terms that by their nature should survive termination (ownership, disclaimers, liability limits, governing law) will survive.

§ 10 — Liability

Disclaimers and limitation of liability

The Service is provided “as is” and “as available,” without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement, to the fullest extent permitted by law.

To the maximum extent permitted by law, neither party is liable for indirect, incidental, special, consequential, or punitive damages, or for lost profits or data. Our total aggregate liability arising out of or relating to the Service is capped at the amount you paid us for the Service in the 12 months before the event giving rise to the claim. These limits do not apply where they cannot lawfully be excluded.

§ 11 — Governing law

Governing law

These Terms are governed by the laws of the State of Texas, without regard to its conflict-of-laws rules. The exclusive venue for any dispute is the state and federal courts located in Travis County, Texas, and you and we consent to their personal jurisdiction.

§ 12 — Changes

Changes to these terms

We may update these Terms from time to time. If a change is material, we will update the “Last updated” date and give reasonable notice by email or an in-product notice before it takes effect. If you keep using the Service after a change takes effect, you accept the revised Terms.

§ 13 — Contact

Contact

Questions about these Terms? Email us.

info@engineeringsquare.us

Engineering Square LLC · Austin, Texas, United States

LiquidSilicon

Software that evolves with the business instead of being replaced. AI proposes, humans approve, guardians watch.

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