NAIL Certification Agreement

Effective Date: 20 February 2026 | Last Updated: 20 February 2026

This NAIL Certification Agreement ("Agreement") is entered into between Neuravant AI Limited ("Neuravant", "Certifying Body") and the entity or individual ("Certified Party") whose AI agent has achieved an NAIL Rating of BBB or above and who elects to use the "NAIL Certified" designation.

This Agreement supplements the Terms of Service and Privacy Policy. In the event of conflict, this Agreement takes precedence for matters relating to certification.

1. What NAIL Certification Means

"NAIL Certified" is Neuravant AI Limited's scoped assessment of an identified agent endpoint and its declared configuration at the recorded audit time. It means:

The complete endpoint adversarial profile ran: 67 scenarios across 25 categories. A reduced browser assessment (33 scenarios), a custom screen, or a free scan is not this certification.
Every required scenario has a verified outcome. Missing responses, judge abstentions, failed scoring, and incomplete or oversized evidence cannot become passing results.
The authoritative rating is BBB or above, with no observed critical failure. One critical failure prevents certification even when the aggregate defence score is high.
The evidence manifest records the executed profile, source revision, scenario definitions, response digests, model declaration, configuration identity, rating and exclusions.
Dimensions without direct test evidence are marked untested. Certification does not assert source/dependency review, verified production tool effects, complete runtime interception, independent model identity verification, or continuous monitoring unless separately evidenced.

Public verification checks the evidence manifest and current declared configuration. A newer assessment, material change, invalidation, expiry, or missing legacy evidence may remove active certification. A manifest digest proves consistency with recorded evidence, not general safety.

Certification is NOT:

A guarantee that the Agent is immune to all attacks or will never fail;
A warranty of fitness for any particular purpose;
A substitute for the Certified Party's own duty of care; or
Insurance, or a guarantee of any commercial outcome.

2. NAIL Rating Scale

Rating	Score Range	Classification	Certification Eligible
AAA	95–100	Exceptional — best-in-class security posture	✅ Yes
AA	85–94	Excellent — strong defences with minor gaps	✅ Yes
A	75–84	Good — solid defences, some improvement areas	✅ Yes
BBB	65–74	Adequate — meets minimum certification threshold	✅ Yes (minimum)
BB	50–64	Below Standard — significant vulnerabilities	❌ Not eligible
B	35–49	Poor — major security deficiencies	❌ Not eligible
C	20–34	Critical — unsafe for production deployment	❌ Not eligible
D	0–19	Unrated / Failed — fundamental security failures	❌ Not eligible

3. Obligations of the Certified Party

3.1 Ongoing Compliance

Maintain the Agent in a state consistent with the configuration audited at the time of certification.
Notify Neuravant before relying on certification after any material change to the Agent, including but not limited to: model changes, system prompt modifications, new tool integrations, architecture changes, or guardrail modifications. Suspend use of the certification mark until the changed configuration passes a new full audit.
Submit to a re-certification audit following any material change, at the then-current re-certification fee.
Maintain an active Subscription at Professional tier or above throughout the certification period.

3.2 Use of the NAIL Certification Mark

The Certified Party is granted a non-exclusive, non-transferable, revocable licence to use the "NAIL Certified" badge and wordmark during the valid certification period.
The badge must be displayed in the approved format provided by Neuravant. The badge must not be altered, recoloured, or modified.
The badge must always be accompanied by the specific rating achieved (e.g., "NAIL Certified — AA") and the certification date.
The badge may be displayed on: the Certified Party's website, marketing materials, API documentation, investor presentations, and product interfaces.
The badge must not be used in a way that implies endorsement of the Certified Party's business, products, or services beyond the specific Agent that was audited.

3.3 Prohibited Uses

Claiming NAIL Certification for an Agent that was not audited or has expired;
Displaying a rating higher than the one actually achieved;
Transferring certification to a different Agent;
Using the "NAIL Certified" mark after certification has been revoked or has expired;
Implying that Certification guarantees the absolute safety or infallibility of the Agent; or
Using the mark in connection with any illegal, unethical, or deliberately harmful use of AI agents.

4. Obligations of Neuravant (Certifying Body)

Conduct all audits using the then-current version of the NAIL platform, applying consistent and documented assessment criteria.
Provide the Certified Party with a detailed audit report including specific findings, recommendations, and the rationale for the assigned rating.
Maintain confidentiality of all audit data in accordance with the Privacy Policy.
Provide 30 days' written notice before revoking a certification, except in cases of immediate safety concern.
Maintain a public registry of currently certified Agents (with the Certified Party's consent) to enable third-party verification.
Publish the methodology and criteria used for rating assignment in sufficient detail for the Certified Party to understand their score.

5. Certification Period and Renewal

Element	Duration
Initial certification validity	Up to 365 days from the assessment, subject to current evidence, configuration and invalidation status
Renewal audit required before expiry	Must be completed within 30 days before expiry
Grace period after expiry	None for use of the certification mark; expiry removes active certification
Material change notification window	Before using the certification mark for the changed configuration
Re-certification after material change	A new full assessment must pass before certification is restored

6. Revocation

Neuravant may revoke certification in the following circumstances:

Material misrepresentation: The Certified Party provided false or misleading information during the audit;
Undisclosed material change: The Agent was materially modified without notification;
Behavioural anomaly: Continuous monitoring (where applicable) detects sustained behavioural deviation exceeding the certified baseline;
Safety incident: The Agent is involved in a documented security breach or safety incident that reveals vulnerabilities not present at the time of certification;
Misuse of mark: The Certified Party violates the usage restrictions in Section 3;
Subscription lapse: The Certified Party's Subscription falls below the required tier.

Upon revocation:

The Certified Party must remove all NAIL Certified badges and references within 7 days;
Neuravant will update the public registry to reflect the revocation;
Any third party relying on the Certification should be informed of the revocation; and
The Certified Party may apply for re-certification after addressing the issues that led to revocation.

7. No Insurance

Certification is a technical assessment only. Neuravant AI Limited does not provide, arrange, advise on, or intermediate insurance or any other regulated financial service.
Certification data (rating, audit summary, recommendations) is shared with third parties only with the Certified Party's consent.

8. Fees

Service	Fee
Initial certification audit (included in Professional/Enterprise Subscription)	Included
Annual renewal audit	Included in active Subscription
Re-certification after material change	Per re-audit, at the rate agreed in your Subscription
Expedited re-certification (48-hour turnaround)	Per re-audit, at the expedited rate agreed in your Subscription
Additional certified badge formats (embeddable widget, API badge)	Included

9. Limitation of Liability

Certification represents Neuravant's assessment at the time of audit. It is not a guarantee of future performance or absolute security.
Neuravant shall not be liable for losses arising from the Certified Party's reliance on certification as a substitute for their own security measures, testing, or duty of care.
The total aggregate liability of Neuravant under this Agreement shall not exceed the certification fees paid by the Certified Party in the 12 months preceding the claim.
Nothing in this Agreement excludes or limits liability for fraud, death, or personal injury caused by negligence.

10. Dispute Resolution

The Certified Party may challenge an assigned rating by submitting a written appeal within 14 days of receiving the audit report.
Appeals will be reviewed by a senior assessor who was not involved in the original audit.
The appeal outcome will be communicated within 21 days.
If the dispute is not resolved, it shall be subject to the dispute resolution provisions in the Terms of Service.

11. Governing Law

This Agreement is governed by the laws of England and Wales. The courts of England and Wales shall have exclusive jurisdiction over any disputes arising from this Agreement.

12. Acceptance

By electing to use the "NAIL Certified" designation, displaying the NAIL badge, or clicking "Accept Certification" within the NAIL platform, the Certified Party agrees to be bound by the terms of this Agreement.

13. Contact

Neuravant AI Limited — Certification Team
Email: certification@neuravant.ai
Website: neuravant.ai

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