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An agent that
doesn’t just
 talk.
It acts.

Excalibur works in your day, your code and the physical world.

View on GitHub

One blue line connects a browser, code changes and a four-legged robot climbing stairs.

01 / 08

Say it.
It goes and
does it.

What pending assignments do I have in my course?

(1) Live voice

(2) Password filled from your vault. The model never sees it.

(3) You watch every step

Clicking 'Sign in'

02 / 08

It remembers.
And shows
where it read it.

Oct 28

Remember the requirements we talked about?

Oct 30

Nov 1

Sample data

Requirements · Article 160

The submission must include a signed project plan.

(1) Memory across conversations

(2) Your documents

(3) Every claim links to its page

Art. 160 · p. 27

Three dated conversation plates connect along one continuous thread to a sample document. Its highlighted requirement links to Article 160, page 27.

03 / 08

A messy sheet in.
A database out.

Sample data

Amounts, dates and projects before cleaning. The third row duplicates the first.
AmountDateProject
S/ 1,800Oct 10Project A
1.200,0015/09/2026Project B
S/ 1,800Oct 10Project A
S/ 600Oct 10Project C
Clients
Projects
Payments

(1) Cleans what it can

(2) Asks before it creates

(3) Your own interface to view and edit

ClientProjectAmountDue
Client-01Project AS/ 1,800Oct 10
Client-02Project BS/ 1,200Sep 15
Client-03Project CS/ 600Oct 10

S/ 3,600 to collect

The duplicate is removed. The clean database contains three projects totaling 3,600 soles. The amount 1.200,00 is normalized to S/ 1,200.

04 / 08

One sentence.
A working system.

(1) Reads the spec

Excalibur

(2) Splits the work

Forge
Atlas
backend
frontend
tests
data
−
+
+

(3) Tests its own code

npm testpassed
✓ R1
✓ R2
…
✓ R18

(4) Sends you the link

Public previewSample dataexcalibur.trycloudflare.com

Sample workflow. Excalibur reads the spec, delegates backend and frontend to Forge, and tests and data to Atlas. It tests the changes, verifies requirements, then returns a public preview. The sample preview address is inactive.

05 / 08

The rest
of your day.

Sources
Project notes
Team handbook
Weekly update

Web search

Weekly review

Presentation

Meeting notes

Word

ABC
1Research
2Draft
3Review
4Send
5
6
7
8

Excel

Whiteboard

To: project team

Monday update

The weekly review is ready.
Please find the notes and
next steps attached.

Shall I send this draft?

Gmail

Sample data

Every Monday at 08:00 · Check my intranet · Next: Nov 9

A transit line connects web research, presentations, documents, spreadsheets, whiteboards and email. The email remains a draft awaiting confirmation. The timetable is sample data.

Built like
a machine.

59.6%

Terminal-Bench 2.1 · 53 of 89 tasks · GPT-6 Luna, reasoning effort low

  1. (1) INPUTz = 0.0 mm
    Your voice or text
  2. (2) MASTER AGENTz = 12.0 mm
    Master agent
  3. (3) PARALLEL SUBAGENTSz = 29.0 mm
    Parallel subagents: three independent workers.
  4. (4) CONTEXT COMPILERz = 44.3 mm
    Context compiler
  5. (5) TOOLSz = 59.6 mm
    Browser
    Code
    Documents
    Google
    My data
    Web
  6. (6) ROBOTICS LAB EXTENSIONz = 72.1 mm
    Robotics Lab extension

Exploded assembly: input, master agent, parallel subagents, context compiler, tools, and the Robotics Lab extension. Millimeters describe this illustration's relative layer positions, using ten drawing units per millimeter.

06 / 08

Measured,
not promised.

59.6%

Terminal-Bench 2.1 · 53 of 89 tasks · GPT-6 Luna, reasoning effort low

Evaluation profile
(1) Same model for
every harness
(2) 89 tasks
(3) 1 attempt
each

Harbor 0.25, November 2026.

07 / 08

One command.
All of it.

Linux

curl -fsSL https://excalibur.crehlabs.com/install.sh | sh

macOS

curl -fsSL https://excalibur.crehlabs.com/install.sh | sh

Windows

irm https://excalibur.crehlabs.com/install.ps1 | iex

Docker

docker run -d --name excalibur -p 127.0.0.1:7787:7787 -v excalibur-data:/data ghcr.io/cristhianrudolf7/excalibur:latest
excalibur / install
  1. (1) Frontend and backend in one install
  2. (2) Then open http://127.0.0.1:7787
  3. (3) Update with excalibur update
Full instructions →

08 / 08

Make it
yours.

Excalibur
Your extension
  1. (1) Classroomz = 10.4 mm
    Classroom
  2. (2) Robotics Labz = 18.1 mm
    Robotics Lab
  3. (3) Robot armz = 11.0 mm
    Robot arm

A harness that adapts to different needs.

Excalibur.

View on GitHub →Install →

Built during the Meta AI hackathon. Oct 31 – Nov 4, 2026.