FOR GTM ENGINEERS
Make your company
queryable.
Inside Codex.
An open-source company brain for GTM engineers. Bring customer knowledge, decisions and follow-ups into Codex. Ask questions across your existing tools. Build on what your company knows.
OPEN SOURCE NOW · MULTIPLAYER COMING SOON
Codex / Claude Code beta
ASK IN CODEX
What do we know about this account?↗What should I focus on today?↗What’s my LTV/CAC health ratio?↗
01 / MAKE THE COMPANY QUERYABLE
One company brain.
Across your GTM.
Your customer history, calls, CRM records, strategy and decisions need to be available where the work happens.
GTM Brain gives Codex that company context. Ask what changed, find the evidence behind a decision, or build the next workflow from what your team has already learned.
Bring in documents, customer evidence and the tools you authorize.
Ask in plain language. Inspect the sources and unresolved questions.
Save decisions and outcomes so the next task can recall them.
GTM system
A system your team improves
RUN IT.
KEEP GOING.
02 / CONNECT THE EXISTING STACK
Use what you have.
Build what is missing.
Keep the tools that work. Use Codex as the place where their context comes together—and where you build the missing steps.
ready to review
Example workflows to build with your connected tools. Each connector needs its own access; scheduling and background execution depend on the host and workflow you configure.
03 / BUILD WITH THE BRAIN
Start with a command.
Make the method yours.
Use the shipped skills in your agent. Each one works with company context; your own skills can follow the same documents and methods.
“Brief me on this account before the next call.”
The relationship, with the evidence attached.
Bring together prior conversations, people, decisions and live tool reads. See what is known, what changed and what you still need to ask.
- One brief across relevant contexts
- Source references behind the claims
- Gaps to resolve before the next call
/gtm-brain-deepdive
04 / UNDER THE HOOD
Readable files.
Queryable context.
GTM Brain is open source. Inspect the code, run the company brain locally, and extend it with your own skills. Your agent gets structured context and a dashboard to inspect it.
- Context
- The strategy, rules and current picture for a topic.
- Memory
- A dated record of evidence, decisions and open questions. Corrections preserve the history.
- Entities
- People, companies and products connected to the evidence about them.
Searchable through a local MCP server.
Use your existing tools
Read from your connected CRM, email, calendar and notes. Each connection has its own access and permissions.
Review the decisions
Inspect sources and proposed changes. Workplace settings are protected by an explicit approval step.
Bring context into projects
Link your working folders to the same brain. Keep project-specific work connected to company knowledge.
Local storage describes where the brain files live. AI processing uses your chosen provider; connected services keep their own data policies.
05 / FOLLOW ONE ACCOUNT
Inspect the evidence.
Keep the decision.
A fictional account, three steps. Read the context, prepare work for review, and save a decision the next task can recall.
Output → review → memory.
The next run can
recall the decision and its source.
06 / RUNTIME & OPEN SOURCE
Know the
constraints.
Host support, connections, permissions and current availability.
Where does it run?
The current version runs locally through the Codex desktop app. Claude Code support is in beta. In that beta, context summaries still require Codex on the same machine, and connector checks and dashboard chat buttons are Codex-only. Mac is the recommended setup; Windows has not yet been verified.
Does it replace my CRM or connect every tool automatically?
Your CRM stays the source for your deals and contacts. GTM Brain keeps useful evidence, relationships and decisions across your work. Connectors are installed and authorized separately in your agent environment. Availability depends on the tools you connect.
Is the brain fully local?
The brain files and search index live on your computer. Your AI provider still processes the context you give it, and connected tools use their own services. Local storage does not mean offline inference or that your data never leaves the device.
Does it run my GTM workflows on its own?
Workflows keep the steps, conditions, dates and results of a run. Work happens through your agent and connected tools, with their permissions and the workflow’s gates. A step becoming due does not mean an email was sent or a campaign launched. Summaries update in the background; they are not guaranteed to update immediately.
Can I install it today?
Yes. GTM Brain is open source under the MIT license. The public repository includes setup instructions for Codex and Claude Code (beta). No repository invitation is needed. You’ll need your agent account, Node 22.16+ or 24+, and the tools you choose to connect.
Check on GitHubIs multiplayer available?
Multiplayer is coming soon. Today, you can run the open-source company brain locally in Codex or Claude Code (beta).
BUILD WITH GTM BRAIN
Open source now.
Multiplayer coming soon.
Read the code, install GTM Brain, and build your company brain. Or book a demo with the founders to see it in action.