Thegroundrules.

These terms are between you and Synthrun, the developer of Context Fence ("the Product"). The Product includes the proxy application, the policy file format, the Homebrew tap and release pipeline, this website, and any future hosted services. By downloading, installing, or using the Product or this website, you agree to these terms.

The Product is a local policy proxy for AI agent tool calls. In its default configuration it operates entirely on your machine: it reads a policy file (cf.policy.yml), evaluates tool calls against it, writes an append-only audit log to local SQLite, and routes nothing to Synthrun or any third party. Nothing in these terms grants or implies any right to use the Product as a hosted service unless separately agreed.

Blocked calls get logged with a reason. The audit trail is append-only, local, and yours.

The local core is free to use, for individuals and companies, including commercial use. You may not resell or sublicense the proxy itself, or wrap it into a product that competes with the Product, without written permission. The hosted control plane, when it ships, is a separate service with its own terms and pricing; the local core keeps working regardless.

Where you provide an email address (for example, the early access form), you warrant that it is yours and that you consent to being contacted about the Product at it. Access to early builds is at our discretion and may be revoked at any time.

You agree not to use the Product to violate applicable law, to misrepresent it as another product, to redistribute modified builds under the Product's name, or to use the website or release infrastructure to attack, scrape, or abuse the Product or its users. You are responsible for the behavior of the agents you run behind the fence.

The macOS build is ad-hoc signed and the Windows build is unsigned by design. You acknowledge that unsigned or ad-hoc-signed software may be blocked by your operating system, and that you install it at your own risk. We publish sha256 checksums for every release so you can verify that what you installed is what we published.

The Product is provided "as is" and "as available", without warranty of any kind, express or implied, including merchantability, fitness for a particular purpose, and non-infringement. The fence reduces risk; it does not eliminate it. A misconfigured policy file, a model that finds a new way around, or an agent with write access can still cause harm.

Zero telemetry in the default configuration. Nothing leaves the machine unless you say so.

To the maximum extent permitted by law, Synthrun shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, data, or secrets, arising out of or related to the Product or these terms. Our total liability for any claim is limited to the amount you paid us in the twelve months preceding the claim — which, for the free local core, is zero.

Pricing and feature pages describing a hosted console are plans, not commitments. Features may ship late, differently, or not at all. When the console ships, its use is governed by separate terms presented at signup.

We may update these terms from time to time. The date at the top of this page is the notice; continuing to use the Product after an update constitutes acceptance. Material changes will be flagged in the changelog.

You may terminate this agreement at any time by deleting the Product and ceasing use of the website. The Product is local software; there is nothing to return and no account to close in local mode. Sections on warranty, liability, and governing law survive termination.

Schema checks in under ten milliseconds. Small print, set in lead, set once.

These terms are governed by the laws of the Republic of India, without regard to conflict-of-law principles. Any disputes will be resolved in the courts of New Delhi.

Questions about these terms: use the early access form on the home page and say it is about the terms. The founders answer it directly.