Stop using Claude Code as a tool.
Use it as a teammate.
We help you build your most advanced coding, product and review agent once - then the whole team just talks to it. No more keeping a laptop open and teaching everyone how to drive an agent: Sennin lives in the same places your team is already connected. Sennin is part of your team.
TL;DR We connect an AI agent like Claude Code or Codex to the systems your team already works in - GitHub, Linear, Jira, Slack. Sennin shows up in your systems like a normal user: it answers your questions and asks its own, moves the roadmap, opens PRs, pushes back in discussions, and fixes pipelines. It manages its own context. The agent runs on your machine, and the setup is tailored to your team. You own the code and can upgrade the flow, prompts, and scenarios yourself. No subscription, no lock-in. One-time flat $20k, paid in stages, plus $5k per integrated repo/task tracker.
Confirmed - the remainder cent has to land somewhere, and that’s a finance call, not mine. @maria-qa you filed this one: (a) round each refund up, we eat the cent, or (b) round down and keep the remainder? One-line change either way.
Go ahead with (a) - always in the customer’s favor.
What actually changes
Sennin reacts on its own.
All your engineers become architects and team leads. They set direction, review architecture, and own every merge and deploy. The agent has its own machine and a real user account in your repo and tracker, takes work as issues, and is expected to finish the job. It reacts to what happens in your repo and tracker:
- New code pushedReads the full task thread and deep-reviews the diff against your codebase and docs.
- Review feedback leftReads how the code got there, then implements the fix - or argues it is wrong.
- CI pipeline failedInvestigates the failure, reproduces it with your tests locally, and pushes the fix.
- Issue assignedReads the thread and related issues, then implements it - or asks questions first when the ask is unclear.
- New comment / messageAnswers in context, then acts on it: opens a follow-up PR, files another issue, updates the roadmap, or pulls the data it needs.
Every action and decision lands in plain sight - in your PR and issue discussions, not a private chat log. It is the same trail your engineers already read to ship enterprise-grade code, and your people still approve every merge.
No terminal
Claude Code works where you do.
Not in a terminal on someone’s laptop. The agent lives in your tracker and repo, works off triggers around the clock, and reports back where the work already happens.
- 01
Trigger
An issue gets assigned, someone @mentions the agent, a pipeline goes red. No sessions to start - the agent wakes on events in your tracker and repo.
- 02
Context
The harness pulls the full context before the model sees the event: full issue thread, MR discussions, branch history, related issues, Sentry errors, staging logs. Raw webhooks are never the prompt.
- 03
Work
The agent writes the code and runs your full suite locally, unit and end-to-end, so it has seen the UI it built before anyone else.
- 04
Review
The reviewer deep-reviews every push: dozens of hypotheses about the diff, each researched against your codebase, issues and docs. Only survivors get posted. Sennin resolves every discussion - and argues back when it disagrees.
- 05
Ship
Your engineers review architecture, not syntax, and make the call. Merge and deploy stay human. The agent handles whatever the pipeline finds after.
The data flow
Work reaches the agent - and comes back.
What an install includes
You own the code.
The whole system is yours. Change Sennin however you like in a few prompts - it is agent-ready. Use any harness (Claude Code, Codex, pi, opencode), any models, any SDLC flow. Change it, add capabilities, add integrations with any system you run - on the harness side and on Sennin’s.
- Autonomous AI developer stood up inside your infrastructure, on your model subscription
- A deep AI reviewer wired to every push - Sennin never runs without it
- Full integration with your repo host and tracker - GitLab, GitHub, Bitbucket, Jira, Linear, or anything with an API and webhooks
- Local test loop: the agent runs your unit and e2e suites before opening an MR
- Remote control set up so your CTO can upgrade the agent from anywhere, even a phone - edit its instructions in plain language, no vendor ticket
- Team handover: your developers become reviewers and orchestrators
Readiness check
What you already have sets your time to adoption.
We do one narrow job: connect the agents to your platforms. We don’t fix what’s on this list - if you have no end-to-end tests, the agent simply won’t run them. None of it blocks the install. What it changes is how fast the agent becomes genuinely useful.
Working CI
Every merge request runs a pipeline and main is green. This is the agent’s feedback loop - without it, nobody knows the code works, humans included.
Unit tests
A suite that runs locally in one command. It is how the agent proves itself done before opening an MR.
E2E tests
Browser tests the agent can run headless, so a broken screen fails the pipeline, not your users.
A tracker that is actually used
Work arrives as written issues, not Slack messages. Issues are the agent’s job queue and its main source of context.
Reproducible dev environment
A fresh machine gets the app and the test suite running in under a day. The agent gets its own machine - this is usually the real bottleneck.
AI on the team already
Copilot, Cursor or Claude Code in use, maybe an AGENTS.md in the repo. Teams that already trust AI adopt in days; the rest start with the playbook stage.
Existing AI review
CodeRabbit or similar already installed? We integrate with it or replace it - either way a reviewer always gates Sennin.
Repo and tracker shape
Monorepo or microservices, one Jira project or five. It doesn’t gate the install; it just sets the unit count in your price.
Pricing
One-time. No seats, no per-line fees, no lock-in.
Why not a monthly seat fee? There is nothing to rent. The system runs on your machines, your repos, your model subscription - we host nothing. No server to bill you for, no seat to sell. You buy a one-time build that you own, not access to our software.
A separate tracker or any further repo adds $5k at its own finish. Half on start, half once it’s live and working.
The four-stage flow - built once
- 1$5k
Review + house rules
Sennin reviews every push, and your CLAUDE.md fills up with the rules, practices and codebase quirks the agents follow.
- 2$5k
Auto-resolve PR discussions
Sennin gets the power to resolve review threads on its own - from both the AI reviewer and your humans.
- 3$5k
Talk anywhere
Sennin joins any discussion on the issues - answers questions, and opens follow-up PRs.
- 4$5k
Assign issues to Sennin
Hand it an issue and it asks questions or implements right away.
- $5kper repo / tracker
Across the line - successful integration
$5k at the finish for every repo or tracker that completes the flow - your first repo, its separate tracker, and any you add later. A repo whose issues live in the same place is one.
Optional
- 5$2k
Telegram / Slack
Sennin joins your chat with the same capabilities and the same context.
- 6custom
Group calls
Sennin joins your calls. Priced after a conversation.
- 7custom
Business Intelligence agent
An agent that reads across your systems and answers questions about the numbers. Priced by how many data sources and access levels it needs.
Fifteen minutes a week of our help is included free. Only if something breaks and needs our hands is it $500/hr.
Ready to merge code you didn’t have to babysit?
Tell us what your repos, tracker and tests look like - we’ll reply with a readiness check, a fixed quote and an install plan.
ivan@hayaku.tech
total_cents / items.countis integer division - when the total doesn’t split evenly the remainder is dropped, so a 3-item cancel refunds a cent less than was charged. Across orders that adds up.