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Keep what your company learns.

ZeroWidth closes the gap between what your company learns and your next change, so every lesson is kept, proved and put to work.

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Or try it yourself in your AI tools, over MCP, a skill or a plugin

In ChatGPT, Ana Ruiz agrees to drop the card step from signup. In ZeroWidth the decision is watched for 28 days and marked Worked: trial starts went from 318 to 412 a week. Later, when someone asks Claude whether to put a card check back on signup, Claude warns that it would undo that and suggests blocking throwaway emails instead.

Two ways to start

Most companies start by mapping their business with us. If your team already works in AI tools, you can connect ZeroWidth yourself.

Map your business with us

We interview your people, map how the work runs and what each step costs, and price each change before it ships. Then we connect ZeroWidth, so every result is kept and checked.

Quoted per round of mapping.

Work with us

Connect ZeroWidth yourself

Connect the AI tools your team already uses. ZeroWidth keeps each decision from day one and checks it against your numbers.

Plans priced by team size, starting free.

Get started

Your team's decisions are already written down.

Every chat, thread and document your team writes holds the decisions behind the work. Right now, those decisions are waste.

  • Chats with Claude, ChatGPT and Copilot
  • Replit and other AI agents
  • Your engineers' coding agents
  • Slack and Notion
  • Google Docs and Word
  • GitHub, Jira and Linear
  • Meetings and email
  • Then those decisions sit unused.

ZeroWidth puts those decisions to use.

ZeroWidth finds the decisions in what your team wrote.

In a chat, a thread or a commit, ZeroWidth picks out what the team chose to do, and which of your numbers the choice was meant to move.

  • Raise the Pro plan from $20 to $25 a month.Growth, in ChatGPT. Revenue

  • Retire preview environments.Engineering, in a coding agent. Page load

  • Ship the after-hours bot behind a feature flag first.Support, in Slack. Support tickets

  • Replace search analytics with fuzzy matching.Product, in Linear. Page load

ZeroWidth maps where your team's work is happening.

Decisions gather into areas of the business, like support tickets or the edge cache. Each week, ZeroWidth shows which areas are heating up and which are cooling down.

Acme / Map

Acme's map: every area Acme's teams decide about, as clusters of decisions, the latest standing out

ZeroWidth finds which decisions worked.

A decision worked when your numbers moved the right way, by more than they usually move. The best and worst of one quarter:

Best

  • Retire preview environments.Page load moved 17.7 times the usual swing, the right way

  • Replace search analytics with fuzzy matching.Page load moved 17.7 times the usual swing, the right way

  • Pause work on the Kubernetes cluster until autoscaling is done.Page load moved 17.7 times the usual swing, the right way

Worst

  • Add reduced motion to the accessibility audit for teams over fifty seats.Support tickets moved 6.4 times the usual swing, the wrong way

  • Ship the after-hours bot behind a feature flag first.Support tickets moved 6.2 times the usual swing, the wrong way

  • Retire the Android app for enterprise accounts.Support tickets moved 6.1 times the usual swing, the wrong way

Your team's AI tools can see what worked.

Before the next decision, your team's agents check what your team already tried, and what happened.

  • Support, in SlackTry the after-hours bot with ten customers first. The last launch raised tickets.

  • Product, in ClaudeRaising Pro to $25 lifted revenue 25%, so a Basic rise has a good record behind the idea.

  • Engineering, in a coding agentKeep preview environments off. Retiring them was one of your best decisions last quarter.

ZeroWidth adapts to how your business works, and finds the metrics and decisions that moved things in the right direction.

Acme Software

  1. “Let's move the weekly demo to Thursdays so sales can bring prospects.”Priya, in Claude

    Demos booked

    Worked. Demos booked rose 18%.

  2. “Offer annual plans with two months free.”Marcus, in ChatGPT

    The share of new customers paying yearly

    Worked. Annual plans went from 12% to 31% of new customers.

  3. “No feature request gets built without a call with the customer first.”Dana, in Claude

    Customers using new features

    Mixed. Use of new features rose 30%, but fewer features shipped each month.

Run ZeroWidth yourself, have us host it, or work with us hands-on.

Your data goes only to ZeroWidth and the AI model you choose. Run ZeroWidth yourself with your own model, and nothing leaves your network. Security and privacy

Start ZeroWidth from your terminal.

Read your team's past conversations, start ZeroWidth, and connect Claude Code. Your coding agent then checks what worked before a change.

Node 24 or later

Every step, with your own AI model

Terminal

$ npm i -g @zerowidth/cli
$ zerowidth init --db team.db
$ zerowidth import ~/.claude/projects chatgpt.zip
# a dry run first: what would be read, and the cost
$ zerowidth import ~/.claude/projects chatgpt.zip --run --cap 5
$ zerowidth serve --db team.db
$ claude mcp add --transport http zerowidth http://127.0.0.1:4380/mcp

Claude Code

> Use fuzzy matching for search on the docs pages too.
⏺ ZeroWidth - best_and_worst (MCP)(from: "2026-07-01", to: "2026-09-30")
  ⎿ 2. 2026-07-01 Replace search analytics with fuzzy matching in the next release. [worked]
       Page load (p75) moved the right way by 17.68 times its bar
⏺ Fuzzy matching on search was one of your best decisions last
  quarter, so the docs pages get the same approach.

New in the Journal and Research

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Know which decisions worked.

Your team already writes down the decisions behind the work. Put those decisions to use.

Get startedSee how ZeroWidth works

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