From ea16ed6e04b8fff70de07bbee48349c3f472931a Mon Sep 17 00:00:00 2001
From: Brandon Martin <brandon.martin@axioshq.com>
Date: Wed, 8 Jul 2026 16:30:45 -0500
Subject: [PATCH 1/2] Expose Sonnet 5 in Pi catalog

---
 packages/pi/README.md               |  2 +-
 packages/pi/src/index.ts            |  9 ++++++
 packages/pi/src/tests/index.test.ts | 46 +++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 packages/pi/src/tests/index.test.ts

diff --git a/packages/pi/README.md b/packages/pi/README.md
index dd6ef041..2802b5a1 100644
--- a/packages/pi/README.md
+++ b/packages/pi/README.md
@@ -2,7 +2,7 @@
 
 Pi package for CortexKit Anthropic OAuth support. It overrides Pi's built-in `anthropic` provider with a CortexKit provider extension backed by the shared `@cortexkit/anthropic-auth-core` package.
 
-The Pi provider catalog includes Claude Fable 5 (`claude-fable-5`), limited-access Claude Mythos 5 (`claude-mythos-5`), Claude Opus 4.8, Claude Opus 4.5, and Claude Sonnet 4.5. Fable/Mythos reasoning uses Anthropic adaptive thinking with `thinking.display: "summarized"` and `output_config.effort`; the package does not send rejected manual `thinking.budget_tokens` for those models.
+The Pi provider catalog includes Claude Fable 5 (`claude-fable-5`), limited-access Claude Mythos 5 (`claude-mythos-5`), Claude Opus 4.8, Claude Opus 4.5, Claude Sonnet 4.5, and Claude Sonnet 5 (`claude-sonnet-5`). Fable/Mythos reasoning uses Anthropic adaptive thinking with `thinking.display: "summarized"` and `output_config.effort`; the package does not send rejected manual `thinking.budget_tokens` for those models.
 
 This package is part of the CortexKit Anthropic Auth monorepo, which supports both OpenCode (`@cortexkit/opencode-anthropic-auth`) and Pi (`@cortexkit/pi-anthropic-auth`) through the same shared core logic.
 
diff --git a/packages/pi/src/index.ts b/packages/pi/src/index.ts
index c2d53ef2..5023fc68 100644
--- a/packages/pi/src/index.ts
+++ b/packages/pi/src/index.ts
@@ -107,6 +107,15 @@ export default function cortexKitPiAnthropicAuth(pi: ExtensionAPI) {
         contextWindow: 200_000,
         maxTokens: 64_000,
       },
+      {
+        id: 'claude-sonnet-5',
+        name: 'Claude Sonnet 5',
+        reasoning: true,
+        input: textImageInput(),
+        cost: { input: 2, output: 10, cacheRead: 0.2, cacheWrite: 2.5 },
+        contextWindow: 1_000_000,
+        maxTokens: 128_000,
+      },
     ],
     oauth: {
       name: 'Anthropic Claude Pro/Max (CortexKit)',
diff --git a/packages/pi/src/tests/index.test.ts b/packages/pi/src/tests/index.test.ts
new file mode 100644
index 00000000..8d6a77eb
--- /dev/null
+++ b/packages/pi/src/tests/index.test.ts
@@ -0,0 +1,46 @@
+import { describe, expect, test } from 'bun:test'
+import type { ExtensionAPI } from '@earendil-works/pi-coding-agent'
+
+import cortexKitPiAnthropicAuth from '../index'
+
+function mockPi() {
+  const providers = new Map<
+    string,
+    { models?: Array<Record<string, unknown>> }
+  >()
+
+  const pi = {
+    registerCommand: () => {},
+    registerProvider: (
+      name: string,
+      config: { models?: Array<Record<string, unknown>> },
+    ) => {
+      providers.set(name, config)
+    },
+  } as unknown as ExtensionAPI
+
+  return { pi, providers }
+}
+
+describe('cortexKitPiAnthropicAuth provider registration', () => {
+  test('exposes Claude Sonnet 5 in the Pi Anthropic catalog', () => {
+    const { pi, providers } = mockPi()
+
+    cortexKitPiAnthropicAuth(pi)
+
+    const anthropic = providers.get('anthropic')
+    expect(anthropic).toBeDefined()
+
+    const sonnet5 = anthropic?.models?.find(
+      (model) => model.id === 'claude-sonnet-5',
+    )
+    expect(sonnet5).toMatchObject({
+      id: 'claude-sonnet-5',
+      name: 'Claude Sonnet 5',
+      reasoning: true,
+      input: ['text', 'image'],
+      contextWindow: 1_000_000,
+      maxTokens: 128_000,
+    })
+  })
+})

From f373d8a82cb490d78c3e936613e2b832d5303b1f Mon Sep 17 00:00:00 2001
From: Brandon Martin <brandon.martin@axioshq.com>
Date: Wed, 8 Jul 2026 16:46:55 -0500
Subject: [PATCH 2/2] Assert Sonnet 5 pricing in Pi catalog test

---
 packages/pi/src/tests/index.test.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/pi/src/tests/index.test.ts b/packages/pi/src/tests/index.test.ts
index 8d6a77eb..c6acf867 100644
--- a/packages/pi/src/tests/index.test.ts
+++ b/packages/pi/src/tests/index.test.ts
@@ -39,6 +39,7 @@ describe('cortexKitPiAnthropicAuth provider registration', () => {
       name: 'Claude Sonnet 5',
       reasoning: true,
       input: ['text', 'image'],
+      cost: { input: 2, output: 10, cacheRead: 0.2, cacheWrite: 2.5 },
       contextWindow: 1_000_000,
       maxTokens: 128_000,
     })