“Every switch between clients costs time just remembering where you left off.”
Notes live across scattered threads, folders and call transcripts, so reopening a client after a week starts with reconstruction instead of work.
Installed with you, on your own computer, on top of your own Claude Code. Built for solo consultants and boutique practices running several clients at once.
Not a SaaS, not a chat app, not a template you assemble yourself.
Independent consultants and small practices lose billable focus to context switching, blank-page proposals and generic drafts, while their own marketing sits untouched.
Notes live across scattered threads, folders and call transcripts, so reopening a client after a week starts with reconstruction instead of work.
Your past scopes, pricing structures and phrasing already exist, yet each new opportunity still means hunting through old files and rewriting by hand.
Standard chat prompts do not know your past deliverables, your standards or how you write, leaving you to edit out filler line by line.
Sensitive client files need to stay on your machine under clear API terms rather than inside shared browser workspaces or third-party SaaS dashboards.
Marinext AI Brain is not a folder of prompts or a template pack. It is one operating system installed on top of your Claude Code, wired to run client delivery and your own practice.
Dedicated marketing, sales and operations departments, each led by a lead agent with specialist agents under it. They handle your practice's own marketing, outreach, proposals and internal operations work so growth does not stop when client work peaks.
Custom skills write proposals, client deliverables and posts directly from your past documents and in your voice. Because they draw on work you have already shipped, drafts read like your practice rather than generic AI output.
Multi-step routines are defined once and run on request across your daily work. Use them to research and draft, turn a recording into a post, plan and build a feature, or review a document from start to finish.
Claude plans, reviews and runs the work; Codex from OpenAI writes code from a plan step; Gemini from Google gives an independent second opinion. Routing is already wired in, and Codex and Gemini connect through your own accounts as an option.
Every client and project gets one searchable dossier holding what it is, its current state, decisions with the alternatives rejected, open questions and session handoffs. Opening a client after a week means reading where it stood, not rebuilding it.
Guards run automatically on every action: secrets are blocked from commits and context, a catalogue of past errors is checked before any debugging, and context budget and handoff guards stop long sessions from losing the thread.
Scheduled checks and a morning reflection review the previous day and file what should be remembered. Important decisions and context are captured before the next client day begins.
Walk through how the system fits your practice.
Book a callYou do not assemble templates on your own. Mariela installs the system with you on your computer and sets it up around your active practice.
We map how your practice operates today, the clients you run in parallel, your existing notes and past proposals, and confirm your computer and Claude Code setup.
We install Marinext AI Brain directly on your computer, with you, on top of your own Claude Code, including departments, workflows, guards and model routing.
We set up structured dossiers for your real clients and migrate your existing notes and past proposals into the system so you start with working context.
We build custom proposal and deliverable skills from your own past documents so new drafts follow your structure, reasoning and voice.
You receive a walkthrough of your daily commands, recorded for you to revisit anytime, followed by direct support through the first weeks after the install.
With the optional €150 a month per company updates plan, new releases arrive via a single command. Releases replace the engine only, never your notes or client files, and your install keeps working if you ever stop updates.
Consultants handling client work need to know exactly where files live and what leaves the machine. Here is how Marinext AI Brain works, stated plainly.
Dossiers, client notes, migrated proposals and custom skills live as local files on your own computer. Marinext AI Brain is not a hosted SaaS and we hold no copy of your workspace.
Because the system runs on top of your own Claude Code, what you send to Claude goes through Anthropic's API under the same terms as Claude itself. Optional Codex and Gemini calls use your own OpenAI and Google accounts.
Your installed system keeps working whether or not you subscribe to monthly updates. Releases only ever replace the engine and never touch your notes or client files.
Everything needed to set up the system on your computer, migrate your notes, set up your client dossiers and build your skills is part of the one install price.
Installed personally with you on your computer, configured around your real clients and past work.
Included in the install
You also need your own Claude subscription with Claude Code (paid to Anthropic, not to us). Optional Codex and Gemini routing uses your own accounts.
Mariela installs each system personally, so we take 5 installs a month.
Flat rate per company, not per person. Keep receiving improvements to the Marinext AI Brain engine as it evolves.
If after the install your client dossiers and proposal skills do not work on your own clients, we keep working at no extra cost until they do.
We take 5 installs a month and check fit on the discovery call before starting work together.
Independent consultants and boutique practices (solo to about 10 people)

Founder, Marinext AI
Mariela Slavenova is the founder of Marinext AI. She built Marinext AI Brain to run her own company and uses it daily across client work, proposals, marketing and operations. She installs every system personally with you on your computer, migrating your notes and building your skills from your real work.
Straight answers on technical setup, Anthropic billing, client confidentiality and ownership.
Prefer email first? Write to mariela@marinextai.com
Installed personally with you on your computer, built around your past work and real clients.
mariela@marinextai.com