Cairn Terms of Service
Cairn is a service in operation and a product still in development. Accounts, authentication, and work records run for real at https://mcp.pairtrace.com/mcp. Screens, features, and usage limits may change and some features may be discontinued; when that happens, the notice and data export procedure in Article 5 applies. Paid use and any new use of personal data require separate consent.
1. Operator and purpose
These terms set out the conditions of use, rights, and obligations for Cairn, provided by KangRim Lee, a sole operator (service name PairTrace, hereafter “the Operator”). Enquiries go to kangrim@pairtrace.com.
2. Eligibility and formation of the agreement
The service is for people aged 14 and over. The agreement is formed when you accept these terms during the email-and-password or Google sign-up flow and an account is created. Reviewing the privacy policy and consenting to Google access permissions are treated separately. When new terms are applied to existing users, the Operator explains the changes and obtains the consent required; past consent is not treated as consent to the new terms.
3. Work criteria and connected AI
Cairn lets you and the AI you connect propose and review a work goal, completion criteria, and permitted actions, and keeps the current human-approved criteria together with the history of changes, executions, and results. What the AI proposes is a candidate; it does not substitute for human approval or for permission to act outside the service.
Cairn's records do not technically control every external action a connected AI takes, and they do not guarantee that work is complete or that results are accurate. You are responsible for checking important judgements and external actions. The Operator bears the responsibility imposed by applicable law for the features it provides and for its processing of personal data.
4. Gmail connection
After you grant separate read permission, the Gmail feature searches the mail you ask for and previews a single message you select. It does not send, modify, delete, download attachments, or synchronise automatically. When you first create a work candidate from Gmail, you write the criteria yourself. Message bodies are not passed to a work item or to a connected AI automatically.
The Google permission is limited to reading your mailbox. Cairn uses it only for the features you request. Revoking permission at Google is separate from deleting the material stored in Cairn; for details see the Privacy Policy.
5. Changes and discontinuation
Based on development and testing, the Operator may modify, add to, reduce, or discontinue screens, features, data formats, usage limits, and similar aspects of the service. Access may be restricted by test-user registration or by the policies of external providers. The Operator does not promise to keep providing the same features or to convert the service into a general release.
For a change or discontinuation that materially affects work in progress or your use of your material, the Operator gives notice at least 30 days before it takes effect, on-screen or by email, covering what changes, when, and how material will be handled. If the service is discontinued, the Operator makes work criteria and history available for download in a machine-readable format for 30 days from the date of discontinuation. How long material is retained after that download, and when it is deleted, follows the Privacy Policy. If advance notice is not possible because of an urgent security incident, an outage, or a legal requirement, the Operator takes the necessary measures first and then informs you of the reason and the follow-up without delay. Changes to the purposes for which personal data is used, or to who receives it, follow the separate privacy policy and any consent procedure required.
6. Fees
Cairn is free during the test period. Fees for external services you contract for separately, such as AI providers or Google, follow those providers' terms. If Cairn becomes a paid service, the Operator will explain pricing, payment, cancellation, and refund conditions in advance and obtain your separate consent. Use of the service alone is not treated as consent to automatic paid billing.
7. Your content and your obligations
You may only enter and share material you are lawfully entitled to use, and you must manage your account and access credentials. You must not access another person's account or non-public material without authorisation, and you must not circumvent the protections of the service. For testing, please use test material rather than real customers' sensitive business material.
Rights in the material you enter stay with the rights holder. The Operator stores, processes, and displays it to the extent needed to provide the service, and passes it to the AI or sharing recipients you select. This clause does not grant rights to advertise with it, sell it, or use it for general model training. Rights in AI output follow the terms of the relevant provider and applicable law; the Operator does not warrant exclusive rights across the board.
The service may not be used for the following. Acts that violate the law or infringe the rights of others; deceiving others, including presenting automatically generated output as if a person made it; reselling the service or leasing it to a third party; reverse-engineering the source code or circumventing access controls or usage limits; and interfering with operation of the service through automated bulk requests. If the Operator identifies a violation, it explains the reason and asks you to correct it; if it is not corrected, or if urgent protection is needed, the Operator may restrict use or terminate the agreement. The objection procedure in Article 8 applies in that case.
8. Stopping use, closing your account, and deletion
You may disconnect Gmail or an AI connection, or stop using the service. To close your account and delete work material, write to kangrim@pairtrace.com; the method and the deadline follow the Privacy Policy. Disconnecting Gmail alone does not delete work criteria or history.
The Operator may restrict use where the law or these terms are violated, or where it is necessary for security. Where possible, the Operator explains the reason and how to object, and gives an opportunity to put things right. Where urgent protective measures are needed, the Operator restricts first and explains afterwards.
9. Liability
The Operator and the user each bear the responsibility imposed by applicable law for loss arising from their own fault. Even where the service cannot be provided because of events outside the Operator's reasonable control, such as natural disaster, whether there is responsibility and how far it extends is judged on the actual circumstances and applicable law. A communications failure or an outage at an external AI provider or at Google does not operate as a blanket exemption covering the Operator's own fault.
Notice of the product's limitations, or the absence of a warranty as to results, does not exclude liability under applicable law or a user's legal remedies.
10. Changes to these terms and dispute resolution
When these terms change, the Operator gives notice of what changed, why, and when it takes effect, before it takes effect, and carries out any consent procedure required for material changes. A user who does not agree may stop using the service and request termination and deletion of their material. Mere silence, or simply signing in with Google, is not treated as consent to every change.
The laws of the Republic of Korea apply, and the parties will first try to resolve disputes by discussion. Jurisdiction over litigation follows the Civil Procedure Act and other applicable law.
11. Language and international use
The Korean version of these terms is authoritative and the English version is a translation. If the two differ, the Korean version governs. The laws of the Republic of Korea apply regardless of where the service is used, and jurisdiction follows Article 10.
Users must comply with the export control and sanctions laws of the Republic of Korea and of their own country. Individuals and entities designated on sanctions lists, and users in countries where Korean law prohibits the transaction, may not use the service.