From f8619a2a23f8fcbd24d8ae0998400a16f9cd90e1 Mon Sep 17 00:00:00 2001
From: jmoseley <jemoseley@microsoft.com>
Date: Tue, 27 Jan 2026 08:46:45 -0800
Subject: [PATCH 1/5] Add lsp config for dotnet.

---
 .github/lsp.json         | 12 ++++++++++++
 dotnet/dotnet-tools.json | 13 +++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 .github/lsp.json
 create mode 100644 dotnet/dotnet-tools.json

diff --git a/.github/lsp.json b/.github/lsp.json
new file mode 100644
index 00000000..cae45ba4
--- /dev/null
+++ b/.github/lsp.json
@@ -0,0 +1,12 @@
+{
+  "lspServers": {
+    "csharp": {
+      "command": "dotnet",
+      "args": ["tool", "run", "csharp-ls", "--solution", "GitHub.Copilot.SDK.sln"],
+      "fileExtensions": {
+        ".cs": "csharp"
+      },
+      "projectRootFiles": ["GitHub.Copilot.SDK.sln"]
+    }
+  }
+}
diff --git a/dotnet/dotnet-tools.json b/dotnet/dotnet-tools.json
new file mode 100644
index 00000000..aed74347
--- /dev/null
+++ b/dotnet/dotnet-tools.json
@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "csharp-ls": {
+      "version": "0.21.0",
+      "commands": [
+        "csharp-ls"
+      ],
+      "rollForward": false
+    }
+  }
+}
\ No newline at end of file

From 3bd9308cf97333c52c80c457229712766f246209 Mon Sep 17 00:00:00 2001
From: jmoseley <jemoseley@microsoft.com>
Date: Tue, 27 Jan 2026 12:51:59 -0800
Subject: [PATCH 2/5] fix: add rootPath for C# LSP in subdirectory

---
 .github/lsp.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/lsp.json b/.github/lsp.json
index cae45ba4..adbfacc5 100644
--- a/.github/lsp.json
+++ b/.github/lsp.json
@@ -6,7 +6,8 @@
       "fileExtensions": {
         ".cs": "csharp"
       },
-      "projectRootFiles": ["GitHub.Copilot.SDK.sln"]
+      "projectRootFiles": ["GitHub.Copilot.SDK.sln"],
+      "rootPath": "dotnet"
     }
   }
 }

From 014ebde7d230f52757f9aef02c50f6b2a9892126 Mon Sep 17 00:00:00 2001
From: jmoseley <jemoseley@microsoft.com>
Date: Tue, 27 Jan 2026 13:13:19 -0800
Subject: [PATCH 3/5] fix: remove explicit rollForward to allow patch version
 updates

---
 dotnet/dotnet-tools.json | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/dotnet/dotnet-tools.json b/dotnet/dotnet-tools.json
index aed74347..6f740bfe 100644
--- a/dotnet/dotnet-tools.json
+++ b/dotnet/dotnet-tools.json
@@ -6,8 +6,7 @@
       "version": "0.21.0",
       "commands": [
         "csharp-ls"
-      ],
-      "rollForward": false
+      ]
     }
   }
 }
\ No newline at end of file

From 947647ebf432dd1619274300d0cb4c9d887a5a5f Mon Sep 17 00:00:00 2001
From: jmoseley <jemoseley@microsoft.com>
Date: Wed, 28 Jan 2026 09:39:21 -0800
Subject: [PATCH 4/5] Add support for golang lsp.

---
 .github/lsp.json | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/lsp.json b/.github/lsp.json
index adbfacc5..103eb2cc 100644
--- a/.github/lsp.json
+++ b/.github/lsp.json
@@ -8,6 +8,15 @@
       },
       "projectRootFiles": ["GitHub.Copilot.SDK.sln"],
       "rootPath": "dotnet"
+    },
+    "go": {
+      "command": "${HOME}/go/bin/gopls",
+      "args": ["serve"],
+      "fileExtensions": {
+        ".go": "go"
+      },
+      "projectRootFiles": ["go.mod", "go.sum"],
+      "rootPath": "go"
     }
   }
 }

From b2d8a724e39c87a5f496f6754cf6d2e76f38cc1e Mon Sep 17 00:00:00 2001
From: jmoseley <jemoseley@microsoft.com>
Date: Wed, 28 Jan 2026 13:35:16 -0800
Subject: [PATCH 5/5] Update to simplified config.

---
 .github/lsp.json | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.github/lsp.json b/.github/lsp.json
index 103eb2cc..a11abf6c 100644
--- a/.github/lsp.json
+++ b/.github/lsp.json
@@ -6,8 +6,7 @@
       "fileExtensions": {
         ".cs": "csharp"
       },
-      "projectRootFiles": ["GitHub.Copilot.SDK.sln"],
-      "rootPath": "dotnet"
+      "rootUri": "dotnet"
     },
     "go": {
       "command": "${HOME}/go/bin/gopls",
@@ -15,8 +14,7 @@
       "fileExtensions": {
         ".go": "go"
       },
-      "projectRootFiles": ["go.mod", "go.sum"],
-      "rootPath": "go"
+      "rootUri": "go"
     }
   }
 }