#18499 · @anduimagui · opened Mar 21, 2026 at 8:16 AM UTC · last updated Mar 21, 2026 at 8:18 AM UTC

feat(app): add /restart session command

appfeat

+157−214 files

Score breakdown

Impact

7.0

Clarity

8.0

Urgency

3.0

Ease Of Review

6.0

Guidelines

8.0

Readiness

8.0

Size

4.0

Trust

6.0

Traction

0.0

Summary

This PR adds a /restart session command to the app, which creates a new session seeded with the first user prompt. It includes a new e2e test for verification, but lacks screenshots.

Open in GitHub

Description

Issue for this PR

Closes #18495

Type of change

[ ] Bug fix
[x] New feature
[x] Refactor / code improvement
[ ] Documentation

What does this PR do?

Adds a /restart session command that opens a fresh session draft seeded with the first user message from the current session, making it clear that this action goes back to the user's initial query instead of starting a blank session.

/fork still branches from any selected earlier message, and its small helper now stays local to DialogFork so this PR only touches the app behavior needed for /restart.

How did you verify your code works?

I verified the app package locally:

bun test
bun typecheck
bun run build

I also added a restart e2e regression in packages/app/e2e/session/session-restart.spec.ts to cover seeding a new session draft from the first user prompt.

Screenshots / recordings

Not included.

Checklist

[x] I have tested my changes locally
[x] I have not included unrelated changes in this PR

Linked Issues

#18495 [FEATURE]: add /restart session command

View issue

Comments

No comments.

Changed Files

packages/app/e2e/session/session-restart.spec.ts

+87−0

@@ -0,0 +1,87 @@

import type { Page } from "@playwright/test"

import { test, expect } from "../fixtures"

import { runPromptSlash, withSession } from "../actions"

import { createSdk } from "../utils"

import { promptSelector } from "../selectors"

async function seedConversation(input: {

page: Page

sdk: ReturnType<typeof createSdk>

sessionID: string

token: string

}) {

const messages = async () =>

await input.sdk.session.messages({ sessionID: input.sessionID, limit: 100 }).then((r) => r.data ?? [])

const seeded = await messages()

const userIDs = new Set(seeded.filter((m) => m.info.role === "user").map((m) => m.info.id))

await input.sdk.session.promptAsync({

sessionID: input.sessionID,

noReply: true,

parts: [{ type: "text", text: input.token }],

})

let userMessageID: string | undefined

await expect

.poll(

async () => {

const users = (await messages()).filter(

(m) =>

!userIDs.has(m.info.id) &&

m.info.role === "user" &&

m.parts.filter((p) => p.type === "text").some((p) => p.text.includes(input.token)),

)

if (users.length === 0) return f

packages/app/src/components/dialog-fork.tsx

+45−21

@@ -2,15 +2,15 @@ import { Component, createMemo } from "solid-js"

import { useNavigate, useParams } from "@solidjs/router"

import { useSync } from "@/context/sync"

import { useSDK } from "@/context/sdk"

import { usePrompt } from "@/context/prompt"

import { usePrompt, type Prompt } from "@/context/prompt"

import { useDialog } from "@opencode-ai/ui/context/dialog"

import { Dialog } from "@opencode-ai/ui/dialog"

import { List } from "@opencode-ai/ui/list"

import { showToast } from "@opencode-ai/ui/toast"

import { extractPromptFromParts } from "@/utils/prompt"

import type { TextPart as SDKTextPart } from "@opencode-ai/sdk/v2/client"

import { base64Encode } from "@opencode-ai/util/encode"

import { useLanguage } from "@/context/language"

import { extractPromptFromParts } from "@/utils/prompt"

interface ForkableMessage {

id: string

@@ -22,6 +22,37 @@ function formatTime(date: Date): string {

return date.toLocaleTimeString(undefined, { timeStyle: "short" })

}

async function fork(opts: {

fork: (input: { sessionID: string; messageID: string }) => Promise<{ data?: { id: string } }>

sessionID: string

messageID: string

prompt: Prompt

directory: string

packages/app/src/i18n/en.ts

+2−0

@@ -81,6 +81,8 @@ export const dict = {

"command.session.redo.description": "Redo the last undone message",

"command.session.compact": "Compact session",

"command.session.compact.description": "Summarize the session to reduce context size",

"command.session.restart": "Restart from first prompt",

"command.session.restart.description": "Fork a new session from the user's initial query",

"command.session.fork": "Fork from message",

"command.session.fork.description": "Create a new session from a previous message",

"command.session.share": "Share session",

packages/app/src/pages/session/use-session-commands.tsx

+23−0

@@ -15,6 +15,7 @@ import { DialogSelectFile } from "@/components/dialog-select-file"

import { DialogSelectModel } from "@/components/dialog-select-model"

import { DialogSelectMcp } from "@/components/dialog-select-mcp"

import { DialogFork } from "@/components/dialog-fork"

import { promptLength } from "@/components/prompt-input/history"

import { showToast } from "@opencode-ai/ui/toast"

import { findLast } from "@opencode-ai/util/array"

import { createSessionTabs } from "@/pages/session/helpers"

@@ -94,6 +95,20 @@ export const useSessionCommands = (actions: SessionCommandContext) => {

layout.fileTree.setTab("all")

}

const restart = async () => {

const dir = params.dir

if (!dir) return

const msg = userMessages()[0]

if (!msg) return

const value = extractPromptFromParts(sync.data.part[msg.id] ?? [], {

directory: sdk.directory,

attachmentName: language.t("common.attachment"),

})

prompt.set(value, promptLength(value), { dir })

navigate(`/${dir}/session`)

}

const selectionPreview = (path: string, selection: FileSelection) => {

const content = file.get(path)?.content?.content

if (!content) return u