Fallow · House #16,278

What it is

Calls itself “codebase intelligence”.

• Calls itself: codebase intelligence

“…codebase intelligence”

Where it puts itself

Claims “deterministic”. Rules out “no LLM”.

• Superlative claim: deterministic
• Says it will not: no LLM

“Fallow does not generate code and does not wrap an LLM: it is deterministic analysis that gives the same answer every run”

“Fallow is the boring, deterministic check in that loop.”

What it costs

Monthly subscription. A free tier, free forever. Trial: “30 days”. Has an enterprise plan. Sales on request.

• Monthly: yes
• Free plan: free forever
• Trial: 30 days
• Enterprise plan: yes
• Contact sales: yes

“$20 / DEV / MO”

“Static analysis is free and open source, forever”

Who it sells to

Sells to businesses. Built for teams. Available in 2 languages.

• Sells to: businesses
• Company size: teams
• Languages: JavaScript · TypeScript

“Runtime is the team layer: continuous collection, shared history, alerts, and evidence everyone can point at.”

How it runs

A command-line tool and browser extension for Linux, Windows and macOS. Runs locally and works offline. Hosted in the cloud. Offers an API. Open source. AI is a side feature.

• Kind: cli · extension
• Runs on: Linux · Windows · macOS
• Runs where: cloud / hosted · on the device, offline
• API: yes
• Open source: yes
• AI role: a side feature

“…npx fallow · cli · ci · vs code · mcp”

“Binaries for macOS, Linux, and Windows.”

What it works with

Integrates with Claude Code and Cursor. Plugin for Claude Code.

• Integrates with: Claude Code · Cursor
• Plugin for: Claude Code

“Claude Code, Cursor, and Codex call fallow through the CLI or MCP”

“Add the public repository as a marketplace, then install the same portable Fallow workflows in Claude Code.”

What it offers as proof

Live, no waitlist. Claims “4,580”. Instant signup.

• Number claimed: 4,580
• Instant signup: yes

“…get started”

“GITHUB STARS 4,453 4,580”