Hanzo Kata · Autonomous Coding AgentTest. Repair. Verify.
Test. Repair. Verify.
Autonomous loop.
Kata closes the loop on software maintenance: triaging failing CI/CD runs, locating regressions, executing surgical code repairs, and validating green test suites under strict deterministic governance.
Read the Docs →terminal
kata run --suite tests/unit
12 passed · 1 failed (test_token_expiry)
kata triage
Kai decision: patch · confidence: 0.96 · root cause: off-by-one jitter
kata repair --model enso-ultra
synthesized AST edit in auth/tokens.py · re-running test suite...
13 passed · 0 failed · 100% green verification
The Closed-Loop Cycle
From failing trace to verified PR.
Kata never submits speculative code. Every fix is triaged by Kai, synthesized via Enso, and verified against local or cloud test suites.
01. Observe Failure
Detect & Capture
Extract stack traces, exit codes, and test logs from pytest, cargo test, vitest, or go test.02. Kai Decision Head
Deterministic Triage
Kai scores whether to retry, patch code, roll back, or escalate to human review with zero output tokens.03. Enso Model Routing
Optimal Synthesis
Enso routes code edit generation to the best frontier or open-weight model based on quality, latency, and budget.04. Closed-Loop Verify
Green Suite Guarantee
Executes candidate diffs in an isolated microVM sandbox. Only PRs with 100% green verification land.Capabilities
Deterministic engineering. Zero hallucinations.
Engineered for high-reliability CI/CD pipelines, autonomous bug repair, and multi-agent systems.
Autonomous Test Repair Loop
Identifies regressions and flaky tests, locates the root cause in your AST, applies surgical diffs, and verifies green passes.Deterministic Triage via Kai
Stop parsing conversational LLM prose. Kai returns typed probabilities over discrete actions (patch, rollback, retry, approve).Intelligent Model Routing via Enso
Balances cost and accuracy on every iteration using enso-auto, enso-flash, or enso-ultra presets.CI/CD Pipeline Integration
Drop into GitHub Actions, GitLab CI, or terminal pre-push hooks with zero configuration overhead.Kata · Autonomous Coding Agent
Autonomous test repair specifications, endpoints, and multi-language SDKs.
Closed-loop agent runtime designed for high-consequence CI/CD environments. Combines Kai typed decision heads with Enso multi-tier model routing and sandbox execution.
Model Card Specifications
kataWire EndpointCLI & Agentic Loop · api.hanzo.ai
Autonomous Cycle
Capture → Kai Triage → Enso Synthesis → Sandbox VerifyDecision Engine
Kai typed decision model (determines next action)Model Routing
Enso microsecond router (enso-auto, enso-flash, enso-ultra)Test Runners
pytest · vitest · cargo test · go test · custom TAPSandbox Isolation
Isolated Linux container / macOS seatbeltMulti-Language SDKs
Python · TypeScript · Go · Rust · cURLLicense & Source
Apache-2.0 Open Source on GitHubMulti-Language SDKs & OSS Examples
Python Loop
kata_loop.pyTypeScript Loop
kata_loop.tsGo Client
main.goRust Client
src/main.rscURL Script
curl.shModular Rust Recipes Crate (kata-recipes)
python
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.hanzo.ai/v1",
api_key=os.environ["HANZO_API_KEY"],
)
# Kata autonomous triage loop over failed test
response = client.chat.completions.create(
model="enso-ultra",
messages=[
{"role": "system", "content": "You are Kata, the autonomous test repair agent."},
{"role": "user", "content": "Triage failed test: KeyError 'user_id' in auth/tokens.py:42"}
],
)
print(response.choices[0].message.content)Enterprise Solutions
Battle-tested autonomous repair blueprints for enterprise software systems.
Eliminate flaky tests, accelerate legacy refactoring, and reduce CI/CD test failure triage times from hours to seconds.
04AGENTIC CODING
Stack: Kata + Gen + EnsoAutonomous CI/CD Test Repair & Regression Triage
Hooks into GitHub Actions and GitLab CI. When a unit or integration test fails, Kata captures the trace, triages root cause via Kai, synthesizes an AST patch via Enso, and verifies green passes.Value Impact:$55M–$552M capacity value
Grounding Documentation & Code
05MODERNIZATION
Stack: Gen + KataLegacy Modernization & Service Regression Suites
Re-platforms monolithic backends into modern Go/Rust microservices. Kata autonomously generates comprehensive regression test suites to prove exact functional parity.Value Impact:10x faster service migration
Grounding Documentation & Code
15DETERMINISTIC QA
Stack: Kai + KataFlaky Test Elimination & Sandbox Replay
Isolates non-deterministic test flakes in sandboxed containers. Triages root causes (race condition, timeout, clock skew) via Kai typed heads and synthesizes deterministic assertions.Value Impact:100% green build guarantee
Grounding Documentation & Code
Research & Architecture
Closed-loop verification, deterministic evaluation, and agentic DevOps.
Read engineering papers, verification benchmarks, and architecture write-ups from the Kata systems team.
Questions
Asked plainly.
How does Kata differ from Hanzo Dev and Gen?
Dev is a conversational coding engineer that plans and writes full features. Gen is the universal CLI harness for any coding agent. Kata is the closed-loop autonomous repair and CI/CD triage engine that continuously keeps test suites green.
Which test frameworks does Kata support?
Kata natively supports pytest, vitest, jest, cargo test, go test, and custom test runners emitting standard TAP or JUnit XML output.
Where can I find the open-source examples and recipes?
The open-source repository is at github.com/hanzoai/kata with runnable examples in Python, TypeScript, Go, Rust, and cURL, along with a standalone Rust recipes crate.
How do I authenticate with Hanzo Cloud?
Log in once with `hanzo auth login` or export `HANZO_API_KEY` from platform.hanzo.ai/keys.
Read
The agent, the loop, the documentation.
Explore the source code, recipes, and documentation.
Paste and ship
Paste this into any agent. It reads the skill manifest and calls Kata from there.
Agent prompt
Read https://hanzo.ai/skill.md and use Hanzo Kata in my project. Start with: hanzo kata run