From 6e7fc30f9407f48074852415e2c35958b82b78ed Mon Sep 17 00:00:00 2001
From: Adam <2363879+adamdotdevin@users.noreply.github.com>
Date: Thu, 1 Jan 2026 05:23:00 -0600
Subject: feat(app): context window window

---
 .../app/src/components/session-context-usage.tsx   | 100 ++++++++++++++-------
 1 file changed, 70 insertions(+), 30 deletions(-)

(limited to 'packages/app/src/components')

diff --git a/packages/app/src/components/session-context-usage.tsx b/packages/app/src/components/session-context-usage.tsx
index ece1f8695..53e578214 100644
--- a/packages/app/src/components/session-context-usage.tsx
+++ b/packages/app/src/components/session-context-usage.tsx
@@ -1,13 +1,25 @@
-import { createMemo, Show } from "solid-js"
+import { Match, Show, Switch, createMemo } from "solid-js"
 import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { ProgressCircle } from "@opencode-ai/ui/progress-circle"
-import { useSync } from "@/context/sync"
+import { Button } from "@opencode-ai/ui/button"
 import { useParams } from "@solidjs/router"
 import { AssistantMessage } from "@opencode-ai/sdk/v2/client"
 
-export function SessionContextUsage() {
+import { useLayout } from "@/context/layout"
+import { useSync } from "@/context/sync"
+
+interface SessionContextUsageProps {
+  variant?: "button" | "indicator"
+}
+
+export function SessionContextUsage(props: SessionContextUsageProps) {
   const sync = useSync()
   const params = useParams()
+  const layout = useLayout()
+
+  const variant = createMemo(() => props.variant ?? "button")
+  const sessionKey = createMemo(() => `${params.dir}${params.id ? "/" + params.id : ""}`)
+  const tabs = createMemo(() => layout.tabs(sessionKey()))
   const messages = createMemo(() => (params.id ? (sync.data.message[params.id] ?? []) : []))
 
   const cost = createMemo(() => {
@@ -19,7 +31,11 @@ export function SessionContextUsage() {
   })
 
   const context = createMemo(() => {
-    const last = messages().findLast((x) => x.role === "assistant" && x.tokens.output > 0) as AssistantMessage
+    const last = messages().findLast((x) => {
+      if (x.role !== "assistant") return false
+      const total = x.tokens.input + x.tokens.output + x.tokens.reasoning + x.tokens.cache.read + x.tokens.cache.write
+      return total > 0
+    }) as AssistantMessage
     if (!last) return
     const total =
       last.tokens.input + last.tokens.output + last.tokens.reasoning + last.tokens.cache.read + last.tokens.cache.write
@@ -30,33 +46,57 @@ export function SessionContextUsage() {
     }
   })
 
-  return (
-    <Show when={context?.()}>
-      {(ctx) => (
-        <Tooltip
-          value={
-            <div class="">
-              <div class="flex items-center gap-2">
-                <span class="text-text-invert-strong">{ctx().tokens}</span>
-                <span class="text-text-invert-base">Tokens</span>
-              </div>
-              <div class="flex items-center gap-2">
-                <span class="text-text-invert-strong">{ctx().percentage ?? 0}%</span>
-                <span class="text-text-invert-base">Usage</span>
-              </div>
-              <div class="flex items-center gap-2">
-                <span class="text-text-invert-strong">{cost()}</span>
-                <span class="text-text-invert-base">Cost</span>
-              </div>
+  const openContext = () => {
+    if (!params.id) return
+    layout.review.open()
+    tabs().open("context")
+    tabs().setActive("context")
+  }
+
+  const circle = () => (
+    <div class="p-1">
+      <ProgressCircle size={16} strokeWidth={2} percentage={context()?.percentage ?? 0} />
+    </div>
+  )
+
+  const tooltipValue = () => (
+    <div>
+      <Show when={context()}>
+        {(ctx) => (
+          <>
+            <div class="flex items-center gap-2">
+              <span class="text-text-invert-strong">{ctx().tokens}</span>
+              <span class="text-text-invert-base">Tokens</span>
+            </div>
+            <div class="flex items-center gap-2">
+              <span class="text-text-invert-strong">{ctx().percentage ?? 0}%</span>
+              <span class="text-text-invert-base">Usage</span>
             </div>
-          }
-          placement="top"
-        >
-          <div class="p-1">
-            <ProgressCircle size={16} strokeWidth={2} percentage={ctx().percentage ?? 0} />
-          </div>
-        </Tooltip>
-      )}
+          </>
+        )}
+      </Show>
+      <div class="flex items-center gap-2">
+        <span class="text-text-invert-strong">{cost()}</span>
+        <span class="text-text-invert-base">Cost</span>
+      </div>
+      <Show when={variant() === "button"}>
+        <div class="text-11-regular text-text-invert-base mt-1">Click to view context</div>
+      </Show>
+    </div>
+  )
+
+  return (
+    <Show when={params.id}>
+      <Tooltip value={tooltipValue()} placement="top">
+        <Switch>
+          <Match when={variant() === "indicator"}>{circle()}</Match>
+          <Match when={true}>
+            <Button type="button" variant="ghost" class="size-6" onClick={openContext}>
+              {circle()}
+            </Button>
+          </Match>
+        </Switch>
+      </Tooltip>
     </Show>
   )
 }
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