A Zspez framework Open source · Apache 2.0
Markdown Marty
PublicOpen source · Runs offline

Answers you can trace to the file.

Marty answers from your own markdown files, with no large language model in between. Every answer comes from a file you can open, and says which one.

Runs on a laptop, your server, or a phone with no signal.

Northwind handbookSample

What’s our refund window?

Marty

30 days from delivery. Items need to be unused and in the original box. Refunds go back to the original card within 5 business days.

policies/refunds.mdpolicies/shipping.md

7.9 ms on this laptop · no LLM

01 How it works

Your files are the model. Marty just reads them.

Is it AI? Yes, a small, exact kind. Marty matches your question to your files and follows the answer steps you wrote. No large language model, so the same question gets the same answer, and you can see why.

STEP 1

Write it down.

Policies, manuals and notes as plain markdown. No training run, no data science team.

STEP 2

Ask in plain words.

Marty matches your words to the files that cover them, then follows the answer steps you wrote.

STEP 3

Get the answer and the file.

Every answer names its files. Open one and check it yourself.

02 Where it fits

Wherever the answer has to be right.

If your team can write it down, Marty can answer from it. The same question gets the same answer, every time.

Sample

Support

Customers get the same answer from every agent.

“Can I return a used item?”

policies/refunds.md
Sample

Field service

Techs find the right step, even with no signal.

“Reset code for the RT-40?”

manuals/rt-40.md
Sample

Compliance

Auditors see the exact source behind every answer.

“Who approves new vendors?”

security/vendors.md

Reference

31,100 Bible verses, each one a file in BibleGenius.

“John 3:16”

verses/john/3_16.md

03 Offline

No signal. Still answers.

Marty loads in the browser once, then works with no connection. No server and no LLM, just your files on the device.

  • 2–14 msfor most answers in the demo, each one timed
  • 6.5 MBto download once, then cached
  • 0servers needed to answer
  • 0files leave the device
MartyOn this phone · no server

Reset code for the RT-40?

Hold STOP + 4 for five seconds, then:
  1. Wait for the amber light.
  2. Enter 4071.
  3. Press START to confirm.

9.4 ms on this device · manuals/rt-40.md

And if it shows E7?

E7 means the door sensor is open. Close the door fully, then run the reset again.

8.8 ms on this device · manuals/rt-40-errors.md

Sample

04 Proof

Check it yourself.

No borrowed brain. Marty answers only from the files you give it, and shows you which one.

2–14 ms

For most answers in the demo.

Most answers, measured in Chrome’s and Safari’s engines on a laptop. Every answer shows its own time. The first Bible lookup takes longer while the verses load.

Run Z demo

31,100

Verses, each one a markdown file.

BibleGenius is the full reference build. A verse lookup takes about 3 ms on a laptop.

Source coming soon

6

Tests that keep it honest.

No model libraries, no embeddings, and every cited file must exist.

Source coming soon

Live

Inside the Zcrew demo.

Zcrew’s sales assistant answers with Marty, right on your device.

Try Zcrew

05 The contract

Six rules. A test for each.

“No LLM in between” is easy to claim. Six tests check it.

  1. 01

    No model libraries.

    The runtime may only import from an allowlist.

  2. 02

    No embeddings.

    No vector search or similarity calls of any kind.

  3. 03

    No side doors.

    The runtime can’t call out to other programs or APIs.

  4. 04

    Every source is real.

    Each cited path must exist in your files.

  5. 05

    Files carry the answer.

    Delete a file and the answer changes.

  6. 06

    Sources come back.

    The API returns the cited files with every answer.

06 Open source

Fork it free. Or have us build it.

Free · Apache 2.0

Use the framework

About 700 lines of Python and a set of markdown files. Fork it, read it, run it.

  • Framework and example files
  • BibleGenius reference build
  • The six contract tests
Source coming soon

For companies

Have Zspez build it

Our builders turn your documents into files Marty can answer from, and set it up where you choose.

  • Your files, written and tested with your team
  • On your servers, laptops or phones
  • Every answer traceable for audits

Bring us your files. We’ll make them answer.

or email [email protected]

Use Marty in your company

Tell us what Marty should answer. A builder replies, not a bot.

We use this only to reply. Privacy

Got it.

A builder will reply from [email protected].