Windsurf is a single-player AI editor. Coshell is a shared live session for the whole team.

Windsurf, now Devin Desktop, is a strong AI editor for one developer on their own machine. Coshell is a different thing: the shared *live session* in the cloud that your whole team and one agent work in together.

Start free

Single-player editor vs shared session

Windsurf is an excellent editorA polished, VS Code-based AI IDE whose Cascade agent reasons across your whole codebase and makes multi-file edits. As a local AI editor for one developer, it is genuinely strong.

Now Devin DesktopCognition, the maker of Devin, acquired Windsurf and in 2026 rebranded the editor to Devin Desktop. The editor people search for as Windsurf is the same single-player IDE.

Coshell is a different kindNot a local editor. A shared live session in the cloud that a whole team and one agent work in at the same time.

Windsurf gives each developer their own AI editor on their own machine.

Coshell puts the whole team in one shared live session with one agent.

AOrders dashboard for acme-webARate limiter rolloutADev server on the VMDProject pending statusOCount to 120

Open

Orders dashboard for acme-web

feat/orders TRLF

Add the orders overview to the dashboard: revenue today, order count, and average order value, then the recent orders table.Priya Nair

Explored4 reads

EditOrdersDashboard.jsx /src/pages/+77−0

Editindex.css /src/+33−0

Overview is in with the three stat cards and the recent orders table. Live on http://localhost:5173.

2 Changed files+110 −0

src/pages/OrdersDashboard.jsx+77−0

src/index.css+33−0

Can the stat cards stretch to equal height? The average order card is shorter than the others.Lena Fischer

Editindex.css /src/+4−1

Cards stretch now. The grid uses align-items: stretch and each delta line is pinned to the bottom with margin-top: auto.

Add a 7 day / 30 day toggle above the chart. Default to 7 days.Tom Reyes

EditOrdersDashboard.jsx /src/pages/+31−4

Shellbun test

Added the toggle. 30 days aggregates by week and the axis relabels. 8 tests pass.

Move the delta onto the card’s top row, right aligned against the label.Priya Nair

Editindex.css /src/+6−2

Delta sits on the top row now, right aligned, so the numbers line up down the column.

Use var(--brand) for the Export button, not a hardcoded hex.Tom Reyes

EditOrdersDashboard.jsx /src/pages/+1−1

1 prompt queuedClear queue

Lena FischerMake the Refunded pill amber. Red reads like an error.

Claude Sonnet 5

Rate limiter rollout

feat/rate-limit TR

Start the rate limiter plan. Token bucket per API key, 100 a minute.Priya Nair

Explored6 reads

EditrateLimit.ts /src/middleware/+64−0

Shellbun test

Token bucket middleware is in with 12 tests. Step 1 verified.

Keep the bucket in Redis, we run three replicas.Tom Reyes

EditrateLimit.ts /src/middleware/+22−9

Moved the bucket to Redis with a Lua script so the check is atomic across replicas. 14 passing. Steps 2 and 3 verified.

Execute step 4. Start with the webhooks route, I already reviewed the limiter.Lena Fischer

ReadrateLimit.ts

Editwebhooks.ts /src/routes/+14−2

Shellbun test

Webhooks now share the limiter. 16 passing. Marking step 4 verified and moving to the flag rollout.

Thinking

Claude Sonnet 5

Dev server on the VM

main TRLF

Start the dev server on this VM so the team can preview the orders dashboard.Priya Nair

Shellwhich node npm bun

Node.js isn’t installed on this VM, so I can’t start the dev server yet. I can install it with the system package manager and then run it. Want me to?

Yes, but use the LTS build, the API image pins Node 22.Lena Fischer

Understood, Node 22 LTS from NodeSource.

go ahead and install it and get the server started.Tom Reyes

Shellcat /etc/os-release 2>/dev/null | head -5; which apt-get

Shellsudo apt-get update -qq && sudo apt-get install -y -qq nodejs npm

Shellnode --version && npm --version

Shellnpm install

Shellnpm run dev &

Server is running at http://localhost:5173/, Vite dev server ready in 284ms.

Big Pickle

Project pending status

feature/discounts LFTR

What is the status of the discounts branch?Tom Reyes

Shellgit log --oneline feature/discounts -8

Eight commits since main: the coupon model, the checkout hook, and a migration. No PR yet.

Do we have a written plan for the discounts work?Priya Nair

No. You have no PLAN, TODO, or roadmap file.

Your closest thing to a plan is .coshell/review/dod.md: integer cents, handled promises, no focused tests, no dead exports.

Draft one from the commits and the dod file, then open it in the Plan tab.Lena Fischer

Readdod.md

Editdiscounts.md /docs/plans/+48−0

Drafted docs/plans/discounts.md with five steps. It is waiting for approval in the Plan tab.

Muse Spark 1.3 Free

Count to 120

main LFTR

Quick sanity check on Big Pickle before we let it near the repo. Say hi.Tom Reyes

Hi. Big Pickle here, ready when you are.

Without using any tools, list the first ten primes.Priya Nair

2, 3, 5, 7, 11, 13, 17, 19, 23, 29.

Without using any tools, count from 1 to 120, one number per line, then stop.Lena Fischer

1
2
3
4
5
6
7
8
9
10
11
12

Thinking

Big Pickle

Chat2PlanDeep ReviewBrowserReview

Morning. Plan is approved, I’m starting the orders dashboard on acme-web.8:52

Tom Reyes8:55I’ll take the limiter then. Which drive?

office-mac-mini has Redis running, use that one.8:55

Lena Fischer9:10Back online. Anything blocked?

Tom Reyes9:11Nope. OrdersDashboard.jsx is Priya’s, limiter is mine, webhooks are free if you want them

Lena Fischer9:12Taking webhooks.

Lena the Refunded pill should be amber, not red. I queued a prompt for it9:30

Tom Reyes9:41Picking up rateLimit.ts for the webhooks route

Lena Fischer9:42Tom I already touched the 429 path there, check the overlap note before you push

Step 4 in the plan is mine, I’ll ping when the tests are green

Sounds good. I’ll review after, then we roll the flag.9:44

Rate limiter rolloutDetailsWorking

Spec approvedPlan approvedExecuting 3/5

Goal

Protect /v2 from bursty API keys without slowing normal traffic. One key should never be able to starve the others.

Approach

A token bucket per API key, 100 requests per minute, stored in Redis so all three replicas share state. Over-limit requests get a 429 with a Retry-After header. Ship behind the rate_limit_v2 flag and roll out gradually.

Constraints

No new dependencies beyond ioredis, which we already run.
p99 latency budget: +2 ms on the hot path.
Existing tests stay green at every step.

Verification

bun test after every step. Load test with 1k keys before the flag moves to 50%. Watch 429 rate and p99 in the dashboard for a day at 10%.

Steps

Token bucket middleware with testsVerified

Add

Redis-backed bucket, atomic across replicasVerified

Add

Retry-After header on 429 responsesVerified

Add

Apply the limiter to /v2/webhooksLena, in progress

Add

Roll out behind the rate_limit_v2 flagWaiting

Add

on step 5, Roll out behind the flag

Priya Nair2m

Roll out to 10% of keys first, then 50%. Add both as substeps.

Lena Fischernow

Agreed, updating the step before the agent gets there.

Deep Review

feat/orders against main

Run review

No review yet. Run one when the branch is ready.

Port 5173Port...ShareInspect

acme

DashboardOrdersCustomersSettings

Orders

Last 7 days · updated just now

Revenue today$18,420+12% vs last week

Orders342+8%

Average order$53.86−3%

Revenue, last 7 days7 days30 days

MonTueWedThuFriSatSun

#10428Maya OseiPaid$128.40

#10427Theo LindqvistRefunded$64.00

#10426Ada MensahPaid$212.75

#10425Ravi ShankarPending$39.90

Tom

3 Changed files+112 −3

src/pages/OrdersDashboard.jsx+77−0

38 <div className="toolbar">

39+ <button className="btn">Filter</button>

40+ <button className="btn primary" style={{ background: '#5B4CF0' }}>

41+ Export

42 </div>

src/index.css+33−0

112+ .stat { border: 1px solid #e6e6e6; border-radius: 10px; }

113+ .stat .delta.up { color: var(--ok); }

114+ .status.refunded { background: var(--danger-bg); }

src/App.jsx+2−3

3- import { useMemo, useState } from 'react'

3+ import { useState } from 'react'

18- <Summary />

18+ <Summary />

19+ <OrdersDashboard />

Orders dashboard for acme-web

acme-vm

feat/orders

Add the orders overview to the dashboard: revenue today, order count, and average order value, then the recent orders table.Priya Nair

Explored4 reads

EditOrdersDashboard.jsx /src/pages/+77−0

Editindex.css /src/+33−0

Overview is in with the three stat cards and the recent orders table. Live on http://localhost:5173.

2 Changed files+110 −0

src/pages/OrdersDashboard.jsx+77−0

src/index.css+33−0

Can the stat cards stretch to equal height? The average order card is shorter than the others.Lena Fischer

Editindex.css /src/+4−1

Cards stretch now. The grid uses align-items: stretch and each delta line is pinned to the bottom with margin-top: auto.

Add a 7 day / 30 day toggle above the chart. Default to 7 days.Tom Reyes

EditOrdersDashboard.jsx /src/pages/+31−4

Shellbun test

Added the toggle. 30 days aggregates by week and the axis relabels. 8 tests pass.

Move the delta onto the card’s top row, right aligned against the label.Priya Nair

Editindex.css /src/+6−2

Delta sits on the top row now, right aligned, so the numbers line up down the column.

Use var(--brand) for the Export button, not a hardcoded hex.Tom Reyes

EditOrdersDashboard.jsx /src/pages/+1−1

Claude Sonnet 5

ChatPlanReviewDeep reviewBrowserTerminal

Rate limiter rollout

office-mac-mini

feat/rate-limit

Start the rate limiter plan. Token bucket per API key, 100 a minute.Priya Nair

Explored6 reads

EditrateLimit.ts /src/middleware/+64−0

Shellbun test

Token bucket middleware is in with 12 tests. Step 1 verified.

Keep the bucket in Redis, we run three replicas.Tom Reyes

EditrateLimit.ts /src/middleware/+22−9

Moved the bucket to Redis with a Lua script so the check is atomic across replicas. 14 passing. Steps 2 and 3 verified.

Execute step 4. Start with the webhooks route, I already reviewed the limiter.Lena Fischer

ReadrateLimit.ts

Editwebhooks.ts /src/routes/+14−2

Shellbun test

Webhooks now share the limiter. 16 passing. Marking step 4 verified and moving to the flag rollout.

Thinking

Claude Sonnet 5

ChatPlanReviewDeep reviewTerminal

Dev server on the VM

acme-vm

main

Start the dev server on this VM so the team can preview the orders dashboard.Priya Nair

Shellwhich node npm bun

Node.js isn’t installed on this VM, so I can’t start the dev server yet. I can install it with the system package manager and then run it. Want me to?

Yes, but use the LTS build, the API image pins Node 22.Lena Fischer

Understood, Node 22 LTS from NodeSource.

go ahead and install it and get the server started.Tom Reyes

Shellcat /etc/os-release 2>/dev/null | head -5; which apt-get

Shellsudo apt-get update -qq && sudo apt-get install -y -qq nodejs npm

Shellnode --version && npm --version

Shellnpm install

Shellnpm run dev &

Server is running at http://localhost:5173/, Vite dev server ready in 284ms.

Big Pickle

ChatPlanReviewDeep reviewBrowserTerminal

Project pending status

office-mac-mini

feature/discounts

What is the status of the discounts branch?Tom Reyes

Shellgit log --oneline feature/discounts -8

Eight commits since main: the coupon model, the checkout hook, and a migration. No PR yet.

Do we have a written plan for the discounts work?Priya Nair

No. You have no PLAN, TODO, or roadmap file.

Your closest thing to a plan is .coshell/review/dod.md: integer cents, handled promises, no focused tests, no dead exports.

Draft one from the commits and the dod file, then open it in the Plan tab.Lena Fischer

Readdod.md

Editdiscounts.md /docs/plans/+48−0

Drafted docs/plans/discounts.md with five steps. It is waiting for approval in the Plan tab.

Muse Spark 1.3 Free

ChatPlanReviewDeep reviewTerminal

Count to 120

acme-vm

main

Quick sanity check on Big Pickle before we let it near the repo. Say hi.Tom Reyes

Hi. Big Pickle here, ready when you are.

Without using any tools, list the first ten primes.Priya Nair

2, 3, 5, 7, 11, 13, 17, 19, 23, 29.

Without using any tools, count from 1 to 120, one number per line, then stop.Lena Fischer

1
2
3
4
5
6
7
8
9
10
11
12

Thinking

Big Pickle

ChatPlanReviewDeep reviewTerminal

What Coshell adds for a team.

The difference is not a better editor. It is the layer between the people: one shared live session, one shared agent, in the cloud. Every line below is running in production today.

One shared live session, not an editor per person

Windsurf runs on each developer's machine, with each person prompting their own agent. Coshell puts several people in one shared live session in the cloud, prompting one agent on one running filesystem and terminal, and watching the same work land together.

Adding teammates costs nothing extra

Windsurf is priced per seat once you have a team. Coshell is free to self-host, no seats: run a drive on your own machine, your whole team in your org, unmetered, and no per-seat charge.

Bring your own keys across 70+ models

Coshell runs 70+ models on your own provider keys, scoped per drive, on every plan. Usage is billed by your provider, not marked up by us. Admins choose the allowed set per drive.

Browser or terminal, no desktop app

Windsurf is a desktop app you install per machine. Coshell runs in any browser and from the CLI, with an integrated localhost browser preview in the session, so a teammate joins from any device with nothing to set up.

Coshell vs Windsurf, side by side.

	Windsurf	Coshell
What it is	A local AI code editor (VS Code fork), now Devin Desktop	A shared cloud session where a team works with one agent
Collaboration	Single-player per developer; team admin and multi-agent views	Real multiplayer: many people in one live shared session
AI agent model	Each developer drives their own Cascade agent	One shared agent the whole team prompts together
Pricing basis	Per seat for teams	Free to self-host, no seats
Team size	Priced per seat	Your whole team, one drive
Models	Provider models; bring-your-own-key is limited	Bring your own keys, 70+ models
Where you work	A desktop app on your machine	Any browser, or the CLI, nothing to install
Where code lives	Local machine, your normal git	Shared cloud drive; pushes to your real git
Best for	One developer in a best-in-class local editor	A team working with one agent in one live session

Also compare

CursorDevinClaude Code

Keep your editor. Add the shared session.

Most engineers keep a local editor for solo work and join a shared Coshell drive when the work is shared. Coshell runs your own repo on your own model keys, pushes to your real git, and is priced free to self-host, no seats, so the whole team can be in one session without a per-head bill.

How multiplayer works See the product Pricing, free to self-host

Built on OpenCode

Coshell vs Windsurf, answered

Is Windsurf the same as Devin Desktop now?

Yes. Cognition, the maker of Devin, acquired Windsurf in late 2025 and rebranded the editor to Devin Desktop in 2026. It is the same single-player AI IDE most people still search for as Windsurf. Devin itself, the autonomous async agent, is a separate product. Coshell compares to the editor here, and to the autonomous agent on the Coshell vs Devin page.

Does Windsurf have real-time multiplayer like Coshell?

Not in the sense Coshell means. Windsurf is single-player per developer: each person runs their own local editor and their own agent. It adds team-account features like central billing and admin, and views for coordinating multiple AI agent sessions, but several humans do not share one live coding session. Coshell is built around exactly that: many people in one shared live session prompting one agent at once.

Can a team use Coshell and Windsurf together?

Yes. Many engineers keep a local editor like Windsurf for solo work and drop into a shared Coshell drive when the work is shared: pairing, debugging together, onboarding, live review. Coshell is the shared session your team works in, not another editor to switch to.

Can I bring my own models and keep my code in-house?

Yes. Coshell runs 70+ models on your own keys, scoped per drive, and a drive pushes to your real git repositories as ordinary git. Self-host it on your own machine and your code never leaves it, free; the Enterprise tier adds org-wide on-prem and SSO.

Get your team in the same session.

Start free

Keep your local editor for solo work. When the work is shared, open a drive and put the whole team in one live session with one agent.