EXHIBIT 99.1

JOINT FILING AGREEMENT

We, the undersigned, hereby express our agreement that the attached Schedule 13D (or any amendments thereto) relating to the common stock of Kodiak AI, Inc. is filed on behalf of each of us.

Dated: October 1, 2025

BATTERY VENTURES XII, L.P.

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

BATTERY INVESTMENT PARTNERS XII, LLC

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

NEERAJ AGRAWAL

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

MICHAEL M. BROWN

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

MORAD ELHAFED

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

JESSE FELDMAN

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

RUSSELL L. FLEISCHER

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

BATTERY PARTNERS XII, LLC

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

ROGER H. LEE

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

CHELSEA R. STONER

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

DHARMESH THAKKER

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

SCOTT R. ROBIN

By: /s/ Christopher Schiavo

Name:

Christopher Schiavo

Title:

Attorney-in-Fact

Kodiak AI, Inc. SCHEDULE 13D