From a3b5854cc06523184382dcea386c19a2e5fefb28 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 2 Feb 2026 17:45:41 +0000
Subject: [PATCH 1/3] Initial plan


From 215344b6d3480c3048b8d17e96265efb6fa6f231 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 2 Feb 2026 17:47:35 +0000
Subject: [PATCH 2/3] Changes before error encountered

Co-authored-by: tbrandenburg <40181002+tbrandenburg@users.noreply.github.com>
---
 src/core/target-handlers/acp-handler.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/core/target-handlers/acp-handler.ts b/src/core/target-handlers/acp-handler.ts
index cfa023c..cfa9f19 100644
--- a/src/core/target-handlers/acp-handler.ts
+++ b/src/core/target-handlers/acp-handler.ts
@@ -172,7 +172,11 @@ export class ACPTargetHandler implements TargetHandler {
     process: ChildProcess,
     config: ACPTargetConfig
   ): Promise<string> {
-    // Initialize protocol
+    // NOTE: Session creation typically takes 5-7 seconds on first run
+    // as the ACP client bootstraps the environment. Subsequent sessions
+    // with persisted sessionId are much faster.
+
+    // Initialize protocol (fast, < 1s)
     await this.sendRequest(
       process,
       'initialize',
@@ -187,7 +191,7 @@ export class ACPTargetHandler implements TargetHandler {
       config.timeout || 30
     );
 
-    // Create session
+    // Create session (slow, 5-7s on first run)
     const sessionResult = (await this.sendRequest(
       process,
       'session/new',

From 24dda6896fc7f739d89a28b8e3a2ed4a9b7a98da Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 3 Feb 2026 07:48:35 +0000
Subject: [PATCH 3/3] Add documentation comment for ACP session initialization
 delay

Co-authored-by: tbrandenburg <40181002+tbrandenburg@users.noreply.github.com>
---
 package-lock.json | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 4bdf885..986e122 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1027,7 +1027,6 @@
       "resolved": "https://registry.npmjs.org/@octokit/core/-/core-7.0.6.tgz",
       "integrity": "sha512-DhGl4xMVFGVIyMwswXeyzdL4uXD5OGILGX5N8Y+f6W7LhC1Ze2poSNrkF/fedpVDHEEZ+PHFW0vL14I+mm8K3Q==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@octokit/auth-token": "^6.0.0",
         "@octokit/graphql": "^9.0.3",
@@ -1611,7 +1610,6 @@
       "integrity": "sha512-WJtwWJu7UdlvzEAUm484QNg5eAoq5QR08KDNx7g45Usrs2NtOPiX8ugDqmKdXkyL03rBqU5dYNYVQetEpBHq2g==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -1661,7 +1659,6 @@
       "integrity": "sha512-nm3cvFN9SqZGXjmw5bZ6cGmvJSyJPn0wU9gHAZZHDnZl2wF9PhHv78Xf06E0MaNk4zLVHL8hb2/c32XvyJOLQg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.53.1",
         "@typescript-eslint/types": "8.53.1",
@@ -2063,7 +2060,6 @@
       "integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -2560,7 +2556,6 @@
       "integrity": "sha512-LEyamqS7W5HB3ujJyvi0HQK/dtVINZvd5mAAp9eT5S/ujByGjiZLCzPcHVzuXbpJDJF/cxwHlfceVUDZ2lnSTw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -3849,7 +3844,6 @@
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -4002,7 +3996,6 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -4208,7 +4201,6 @@
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -4222,7 +4214,6 @@
       "integrity": "sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/chai": "^5.2.2",
         "@vitest/expect": "3.2.4",