Laying out the streets…STEP 1 OF 3

Arbalest · Office #60,034

Arbalest proves fixes survive real attacks.

In the Finding security holes in code neighborhood (Developer). In town since 2 Nov 2026.

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What Tablif read on Arbalest's site

Arbalest describes itself as: “Arbalest proves fixes survive real attacks.”

What it is

Calls itself “security CLI”.

  • Calls itself: security CLI
“Agentic security CLI that finds reachable vulnerabilities, writes the fix, and attacks its own patch in an isolated Nebius sandbox.”

Who it sells to

Sells to developers.

  • Sells to: developers
“Python and TypeScript SDKs for scans, recovery, preflight, and archives.”

How it runs

A command-line tool. Runs locally and works offline. Hosted in the cloud. Offers an API. Open source. AI is the core of the product. You can bring your own API key.

  • Kind: cli
  • Runs where: cloud / hosted · on the device, offline
  • API: yes
  • Open source: yes
  • AI role: core to the product
  • Bring your own key: yes
“Agentic security CLI that finds reachable vulnerabilities, writes the fix, and attacks its own patch in an isolated Nebius sandbox.”
“Being a hosted API, it lets Arbalest use a 550B model without running any GPUs itself.”

What it works with

Names Docker, Flask and 4 more on its pages.

  • Names: Docker · Flask · NVIDIA Nemotron · +3
“Local Docker”
“The demo apps are only read by Arbalest, never executed on your machine, so Flask is not required.”

What it offers as proof

Live, no waitlist. Publishes docs.

“You must be signed in to star a repository”
“…docs -> https://github.com/Cholarajarp/Arbalest/tree/main/docs”

Sources

Tablif read these pages, last on 2 Nov 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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