Kai / Continuous Codebase Engineer

The AI maintainer for your codebase

Kai is the team lead for your coding agents. Faster, safer and cleaner code with memory that compounds across every PR.

Proven Across Leading Codebases

Verification

Every change ships with proof

Each candidate runs in an isolated sandbox before it becomes a PR. Security findings ship with a working exploit and a re-tested fix. Optimizations ship with a benchmark on real hardware. Refactors ship with a passing test suite and a behavior diff against main. The agent that proposes a change is never the agent that approves it.

Code sources
Cursor
Cursor
Claude
Claude
Devin
Devin
Codex
Codex
Your team
Initializing secure sandbox

What Kai maintains

One agent, many specialists

Kai runs a fleet of sub-agents, each with its own harness, its own verification loop, and its own specialty. One shared model of your codebase underneath.

Kai
64.2%
Claude 4.6
45.6%
GPT-5.3
39.2%
Claude 4.5
36.1%
Security Audit

Findings come with a working exploit

Kai treats exploitability as the only signal that matters. Each finding ships with a PoC against the unpatched code, the fix, and the same PoC re-run against the fix and failing. Findings without a working exploit never become PRs.

64.2%EVMBench (OpenAI + Paradigm)See benchmark
Kai
53.3%
Claude 4.6
33.3%
GPT-5.2
27.5%
Claude 4.5
26.5%
Optimization

Hunts down the slow paths nobody had time to fix

Generates hundreds of optimized variants, benchmarks each one, and delivers the best as a PR.

53.3%GSO Benchmark (UC Berkeley)See benchmark
Coherence

Coherence across every contributor

Cursor, Copilot, Claude Code, Codex, and humans each leave a different fingerprint. Kai reads the team’s working conventions out of commit history and PR review, then reconciles new code against them. Dedupes overlapping logic. Removes dead paths. Fixes naming drift. The repo stays coherent as it grows.

3,200Consolidated
Memory

Memory anchored to your code

Workspace Memory persists across sessions, anchored to files, symbols, and commit SHAs. A learning Kai had two months ago is still pointed at the right code today, even after refactors. The hundredth PR reads more like your team than the tenth.

50Patterns learned

Recent Cycle · Your Workspace·healthy run

You slept 7h 14m. Kai shipped 11 PRs.

Every night, Kai works through your repos. Open vulnerabilities, stalled optimizations, code nobody has touched in weeks. By morning, the pull requests are waiting.

23:0001:0003:0005:0007:0008:14

01:14 · Critical

IDOR in /api/users/[id]

Exploit verified in sandbox. Fix opened as PR #847.

03:42 · Optimization

checkout cold start 2.4s → 0.8s

Projected savings $840/mo. Benchmarked, ready to merge.

06:20 · Hygiene

12 dead exports swept

Across shared-utils. Zero imports anywhere in monorepo.

6 more events in this cycle →See a real cycle

New Harnesses, Always Shipping

The roster grows every month

Kai is a framework, not a feature list. New agents, skills, and infra ship every month. Enterprise teams can commission their own.