From 39385f2f7b18cde5efc4820aa444a888c447473d Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Tue, 10 Dec 2024 11:54:52 -0800
Subject: [PATCH 01/10] Use propsed content exclusion extensions for vscode
 language model

---
 Extension/package.json                                 |  5 ++++-
 .../LanguageServer/Providers/CopilotHoverProvider.ts   | 10 ++++++++++
 Extension/src/LanguageServer/client.ts                 |  1 +
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/Extension/package.json b/Extension/package.json
index cfdc2a73d7..eb51597af0 100644
--- a/Extension/package.json
+++ b/Extension/package.json
@@ -38,7 +38,10 @@
         "Snippets"
     ],
     "enabledApiProposals": [
-        "terminalDataWriteEvent"
+        "terminalDataWriteEvent",
+        "chatVariableResolver",
+        "chatParticipantPrivate",
+        "chatParticipantAdditions"
     ],
     "capabilities": {
         "untrustedWorkspaces": {
diff --git a/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts b/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts
index a6d052895b..cc5fda9266 100644
--- a/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts
+++ b/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts
@@ -107,6 +107,16 @@ export class CopilotHoverProvider implements vscode.HoverProvider {
         try {
             const response = await this.client.languageClient.sendRequest(GetCopilotHoverInfoRequest, params, this.currentCancellationToken);
             requestInfo = response.content;
+            if (response.files) {
+                for (const file of response.files) {
+                    const fileUri = vscode.Uri.parse(file);
+                    const token = this.currentCancellationToken ?? new vscode.CancellationTokenSource().token;
+                    if (await vscode.lm.fileIsIgnored(fileUri, token)) {
+                        return "";
+                    }
+                }
+            }
+
         } catch (e: any) {
             if (e instanceof ResponseError && (e.code === RequestCancelled || e.code === ServerCancelled)) {
                 throw new vscode.CancellationError();
diff --git a/Extension/src/LanguageServer/client.ts b/Extension/src/LanguageServer/client.ts
index 8ee0e22f6a..d56f1c29d9 100644
--- a/Extension/src/LanguageServer/client.ts
+++ b/Extension/src/LanguageServer/client.ts
@@ -541,6 +541,7 @@ export interface GetCopilotHoverInfoParams {
 
 interface GetCopilotHoverInfoResult {
     content: string;
+    files: string[];
 }
 
 export interface ChatContextResult {

From 26396c72266ce8b14795c98b37e5ce019a5775dd Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Mon, 13 Jan 2025 10:44:00 -0800
Subject: [PATCH 02/10] get back files used for copilot context generation.

---
 .../Providers/CopilotHoverProvider.ts         | 21 +++++--------------
 Extension/src/LanguageServer/client.ts        |  2 +-
 Extension/src/LanguageServer/extension.ts     | 14 +++++++++++--
 3 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts b/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts
index cc5fda9266..05a5ecb8c7 100644
--- a/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts
+++ b/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts
@@ -5,7 +5,7 @@
 import * as vscode from 'vscode';
 import { Position, ResponseError } from 'vscode-languageclient';
 import * as nls from 'vscode-nls';
-import { DefaultClient, GetCopilotHoverInfoParams, GetCopilotHoverInfoRequest } from '../client';
+import { DefaultClient, GetCopilotHoverInfoParams, GetCopilotHoverInfoRequest, GetCopilotHoverInfoResult } from '../client';
 import { RequestCancelled, ServerCancelled } from '../protocolFilter';
 import { CppSettings } from '../settings';
 
@@ -92,8 +92,8 @@ export class CopilotHoverProvider implements vscode.HoverProvider {
         return this.currentCancellationToken;
     }
 
-    public async getRequestInfo(document: vscode.TextDocument, position: vscode.Position): Promise<string> {
-        let requestInfo = "";
+    public async getRequestInfo(document: vscode.TextDocument, position: vscode.Position): Promise<GetCopilotHoverInfoResult> {
+        let response: GetCopilotHoverInfoResult;
         const params: GetCopilotHoverInfoParams = {
             textDocument: { uri: document.uri.toString() },
             position: Position.create(position.line, position.character)
@@ -105,18 +105,7 @@ export class CopilotHoverProvider implements vscode.HoverProvider {
         }
 
         try {
-            const response = await this.client.languageClient.sendRequest(GetCopilotHoverInfoRequest, params, this.currentCancellationToken);
-            requestInfo = response.content;
-            if (response.files) {
-                for (const file of response.files) {
-                    const fileUri = vscode.Uri.parse(file);
-                    const token = this.currentCancellationToken ?? new vscode.CancellationTokenSource().token;
-                    if (await vscode.lm.fileIsIgnored(fileUri, token)) {
-                        return "";
-                    }
-                }
-            }
-
+            response = await this.client.languageClient.sendRequest(GetCopilotHoverInfoRequest, params, this.currentCancellationToken);
         } catch (e: any) {
             if (e instanceof ResponseError && (e.code === RequestCancelled || e.code === ServerCancelled)) {
                 throw new vscode.CancellationError();
@@ -124,7 +113,7 @@ export class CopilotHoverProvider implements vscode.HoverProvider {
             throw e;
         }
 
-        return requestInfo;
+        return response;
     }
 
     public isCancelled(document: vscode.TextDocument, position: vscode.Position): boolean {
diff --git a/Extension/src/LanguageServer/client.ts b/Extension/src/LanguageServer/client.ts
index d56f1c29d9..912fde2125 100644
--- a/Extension/src/LanguageServer/client.ts
+++ b/Extension/src/LanguageServer/client.ts
@@ -539,7 +539,7 @@ export interface GetCopilotHoverInfoParams {
     position: Position;
 }
 
-interface GetCopilotHoverInfoResult {
+export interface GetCopilotHoverInfoResult {
     content: string;
     files: string[];
 }
diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index 642831c25c..6d828b8791 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -11,7 +11,7 @@ import * as StreamZip from 'node-stream-zip';
 import * as os from 'os';
 import * as path from 'path';
 import * as vscode from 'vscode';
-import { Range } from 'vscode-languageclient';
+import { CancellationToken, Range } from 'vscode-languageclient';
 import * as nls from 'vscode-nls';
 import { TargetPopulation } from 'vscode-tas-client';
 import * as which from 'which';
@@ -1430,7 +1430,17 @@ async function onCopilotHover(): Promise<void> {
 
     // Gather the content for the query from the client.
     const requestInfo = await copilotHoverProvider.getRequestInfo(hoverDocument, hoverPosition);
-    if (requestInfo.length === 0) {
+    for (const file of requestInfo.files) {
+        // TODO: make uri from file string.
+        const fileUri = vscode.Uri.file(file);
+        if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
+            // Context is not available for this file.
+            telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for this file." });
+            await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available for this file."));
+            return;
+        }
+    }
+    if (requestInfo.content.length === 0) {
         // Context is not available for this symbol.
         telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for this symbol." });
         await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available for this symbol."));

From 9d4088238a7c7f34a81b68365f6af99c6bcf5e9c Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Mon, 13 Jan 2025 11:22:12 -0800
Subject: [PATCH 03/10] update message to use the right content

---
 Extension/src/LanguageServer/extension.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index 6d828b8791..8d6f529cd0 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -1451,7 +1451,7 @@ async function onCopilotHover(): Promise<void> {
 
     const messages = [
         vscode.LanguageModelChatMessage
-            .User(requestInfo + locale)];
+            .User(requestInfo.content + locale)];
 
     const [model] = await vscodelm.selectChatModels(modelSelector);
 

From 8a76de95ea0225447e8b45ad6f5d730aad26dc70 Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Mon, 13 Jan 2025 13:39:51 -0800
Subject: [PATCH 04/10] remove old comment

---
 Extension/src/LanguageServer/extension.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index 8d6f529cd0..a429530301 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -1431,7 +1431,6 @@ async function onCopilotHover(): Promise<void> {
     // Gather the content for the query from the client.
     const requestInfo = await copilotHoverProvider.getRequestInfo(hoverDocument, hoverPosition);
     for (const file of requestInfo.files) {
-        // TODO: make uri from file string.
         const fileUri = vscode.Uri.file(file);
         if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
             // Context is not available for this file.

From bca1d45abaae5708b825c687f9dd61667fb28c8e Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Mon, 13 Jan 2025 15:37:13 -0800
Subject: [PATCH 05/10] update displayed error to better convey content
 exclusion

---
 Extension/src/LanguageServer/extension.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index a429530301..bcf96fae2b 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -1434,15 +1434,16 @@ async function onCopilotHover(): Promise<void> {
         const fileUri = vscode.Uri.file(file);
         if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
             // Context is not available for this file.
-            telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for this file." });
-            await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available for this file."));
+            telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for definition or declaration." });
+            await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available." + "\n\n" +
+                localize("copilot.hover.excluded", "The file containing this symbol's defintion or declaration has been excluded from use with Copilot.")));
             return;
         }
     }
     if (requestInfo.content.length === 0) {
         // Context is not available for this symbol.
         telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for this symbol." });
-        await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available for this symbol."));
+        await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable.symbol", "Copilot summary is not available for this symbol."));
         return;
     }
 

From 2262010c0447c5a6a8d6e6c71049d14455e79771 Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Tue, 14 Jan 2025 12:27:43 -0800
Subject: [PATCH 06/10] fix parens for localize calls

---
 Extension/src/LanguageServer/extension.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index bcf96fae2b..279465cf1f 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -1435,8 +1435,8 @@ async function onCopilotHover(): Promise<void> {
         if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
             // Context is not available for this file.
             telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for definition or declaration." });
-            await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available." + "\n\n" +
-                localize("copilot.hover.excluded", "The file containing this symbol's defintion or declaration has been excluded from use with Copilot.")));
+            await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available.") + "\n\n" +
+                localize("copilot.hover.excluded", "The file containing this symbol's defintion or declaration has been excluded from use with Copilot."));
             return;
         }
     }

From 7f4cde94b376646202816d49dfeef6bd0ccbc227 Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Wed, 15 Jan 2025 12:01:03 -0800
Subject: [PATCH 07/10] fix typo and update telemetry for content exclusion
 case

---
 Extension/src/LanguageServer/extension.ts | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index 279465cf1f..5e759f06d8 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -1433,10 +1433,9 @@ async function onCopilotHover(): Promise<void> {
     for (const file of requestInfo.files) {
         const fileUri = vscode.Uri.file(file);
         if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
-            // Context is not available for this file.
-            telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available for definition or declaration." });
+            telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available due to content exclusion." });
             await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available.") + "\n\n" +
-                localize("copilot.hover.excluded", "The file containing this symbol's defintion or declaration has been excluded from use with Copilot."));
+                localize("copilot.hover.excluded", "The file containing this symbol's definition or declaration has been excluded from use with Copilot."));
             return;
         }
     }

From 00e9a546169d407a523f6a20265f28642747442c Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Wed, 15 Jan 2025 12:43:33 -0800
Subject: [PATCH 08/10] update proposals needed and update build scripts to not
 force download dev dependencies

---
 Extension/package.json | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Extension/package.json b/Extension/package.json
index a53f882597..ebee813ba0 100644
--- a/Extension/package.json
+++ b/Extension/package.json
@@ -39,8 +39,6 @@
     ],
     "enabledApiProposals": [
         "terminalDataWriteEvent",
-        "chatVariableResolver",
-        "chatParticipantPrivate",
         "chatParticipantAdditions"
     ],
     "capabilities": {
@@ -6530,6 +6528,7 @@
         "lint": "yarn install && eslint -c .eslintrc.js --report-unused-disable-directives src test ui .scripts",
         "compile": "yarn install && (yarn verify prep --quiet || yarn prep) && yarn build",
         "watch": "yarn install && (yarn verify prep --quiet || yarn prep) && tsc --build tsconfig.json --watch",
+        "watch-dev": "yarn install && yarn prep:dts-dev && tsc --build tsconfig.json --watch",
         "rebuild": "yarn install && yarn clean && yarn prep && yarn build",
         "vsix-prepublish": "yarn install && yarn clean && yarn webpack",
         "webpack": "yarn install && (yarn verify prep --quiet || yarn prep) && tsc --build ui.tsconfig.json && webpack --mode production --env vscode_nls",
@@ -6540,8 +6539,10 @@
         "translations-generate": "set NODE_OPTIONS=--no-experimental-fetch && gulp translations-generate",
         "translations-import": "gulp translations-import",
         "import-edge-strings": "ts-node -T ./.scripts/import_edge_strings.ts",
-        "prep:dts": "yarn verify dts --quiet || (npx @vscode/dts dev && npx @vscode/dts main)",
-        "build": "yarn prep:dts && echo [Building TypeScript code] && tsc --build tsconfig.json"
+        "prep:dts": "yarn verify dts --quiet || npx @vscode/dts main",
+        "prep:dts-dev": "yarn verify dts --quiet || (npx @vscode/dts main && npx @vscode/dts dev)",
+        "build": "yarn prep:dts && echo [Building TypeScript code] && tsc --build tsconfig.json",
+        "build-dev": "yarn prep:dts-dev && echo [Building TypeScript code with dev dependencies] && tsc --build tsconfig.json"
     },
     "devDependencies": {
         "@octokit/rest": "^20.1.1",

From 792d8f9801b7d43252f722dfaa9afa9228155918 Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Wed, 15 Jan 2025 13:55:19 -0800
Subject: [PATCH 09/10] update scripts to delete problematic development
 proposal

---
 Extension/.scripts/common.ts | 18 +++++++++++++++---
 Extension/.scripts/verify.ts | 11 ++++++++++-
 Extension/package.json       |  7 ++-----
 3 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/Extension/.scripts/common.ts b/Extension/.scripts/common.ts
index 598ff97e8f..91adc0e302 100644
--- a/Extension/.scripts/common.ts
+++ b/Extension/.scripts/common.ts
@@ -48,7 +48,7 @@ export const Git = async (...args: Parameters<Awaited<CommandFunction>>) => (awa
 export const GitClean = async (...args: Parameters<Awaited<CommandFunction>>) => (await new Command(await git, 'clean'))(...args);
 
 export async function getModifiedIgnoredFiles() {
-    const {code, error, stdio } = await GitClean('-Xd', '-n');
+    const { code, error, stdio } = await GitClean('-Xd', '-n');
     if (code) {
         throw new Error(`\n${error.all().join('\n')}`);
     }
@@ -65,11 +65,11 @@ export async function rimraf(...paths: string[]) {
         }
         if (await filepath.isFolder(each)) {
             verbose(`Removing folder ${red(each)}`);
-            all.push(rm(each, {recursive: true, force: true}));
+            all.push(rm(each, { recursive: true, force: true }));
             continue;
         }
         verbose(`Removing file ${red(each)}`);
-        all.push(rm(each, {force: true}));
+        all.push(rm(each, { force: true }));
     }
     await Promise.all(all);
 }
@@ -345,3 +345,15 @@ export async function checkBinaries() {
     }
     return failing;
 }
+
+export async function checkProposals() {
+    let failing = false;
+
+    await rm(`${$root}/vscode.proposed.chatParticipantAdditions.d.ts`);
+    failing = await assertAnyFile('vscode.proposed.chatParticipantAdditions.d.ts') && (quiet || warn(`The VSCode import file '${$root}/vscode.proposed.chatParticipantAdditions.d.ts' should not be present.`)) || failing;
+
+    if (!failing) {
+        verbose('VSCode proposals appear to be in place.');
+    }
+    return failing;
+}
diff --git a/Extension/.scripts/verify.ts b/Extension/.scripts/verify.ts
index d6ed9896d3..ccfaac49d8 100644
--- a/Extension/.scripts/verify.ts
+++ b/Extension/.scripts/verify.ts
@@ -3,7 +3,7 @@
  * See 'LICENSE' in the project root for license information.
  * ------------------------------------------------------------------------------------------ */
 
-import { checkBinaries, checkCompiled, checkDTS, checkPrep, error, green } from './common';
+import { checkBinaries, checkCompiled, checkDTS, checkPrep, checkProposals, error, green } from './common';
 const quiet = process.argv.includes('--quiet');
 
 export async function main() {
@@ -50,3 +50,12 @@ export async function dts() {
         process.exit(1);
     }
 }
+
+export async function proposals() {
+    let failing = false;
+    failing = (await checkProposals() && (quiet || error(`Issue with VSCode proposals. Run ${green('yarn prep')} to fix it.`))) || failing;
+
+    if (failing) {
+        process.exit(1);
+    }
+}
diff --git a/Extension/package.json b/Extension/package.json
index ebee813ba0..e115e09d0e 100644
--- a/Extension/package.json
+++ b/Extension/package.json
@@ -6528,7 +6528,6 @@
         "lint": "yarn install && eslint -c .eslintrc.js --report-unused-disable-directives src test ui .scripts",
         "compile": "yarn install && (yarn verify prep --quiet || yarn prep) && yarn build",
         "watch": "yarn install && (yarn verify prep --quiet || yarn prep) && tsc --build tsconfig.json --watch",
-        "watch-dev": "yarn install && yarn prep:dts-dev && tsc --build tsconfig.json --watch",
         "rebuild": "yarn install && yarn clean && yarn prep && yarn build",
         "vsix-prepublish": "yarn install && yarn clean && yarn webpack",
         "webpack": "yarn install && (yarn verify prep --quiet || yarn prep) && tsc --build ui.tsconfig.json && webpack --mode production --env vscode_nls",
@@ -6539,10 +6538,8 @@
         "translations-generate": "set NODE_OPTIONS=--no-experimental-fetch && gulp translations-generate",
         "translations-import": "gulp translations-import",
         "import-edge-strings": "ts-node -T ./.scripts/import_edge_strings.ts",
-        "prep:dts": "yarn verify dts --quiet || npx @vscode/dts main",
-        "prep:dts-dev": "yarn verify dts --quiet || (npx @vscode/dts main && npx @vscode/dts dev)",
-        "build": "yarn prep:dts && echo [Building TypeScript code] && tsc --build tsconfig.json",
-        "build-dev": "yarn prep:dts-dev && echo [Building TypeScript code with dev dependencies] && tsc --build tsconfig.json"
+        "prep:dts": "yarn verify dts --quiet || (npx @vscode/dts main && npx @vscode/dts dev && yarn verify proposals)",
+        "build": "yarn prep:dts && echo [Building TypeScript code] && tsc --build tsconfig.json"
     },
     "devDependencies": {
         "@octokit/rest": "^20.1.1",

From 43cb8556b46173b11092cef868c8d857afa1d408 Mon Sep 17 00:00:00 2001
From: spebl <spebl@microsoft.com>
Date: Wed, 15 Jan 2025 16:20:24 -0800
Subject: [PATCH 10/10] wrap proposed API call in try/catch

---
 Extension/src/LanguageServer/extension.ts | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/Extension/src/LanguageServer/extension.ts b/Extension/src/LanguageServer/extension.ts
index 5e759f06d8..87ac5d6e57 100644
--- a/Extension/src/LanguageServer/extension.ts
+++ b/Extension/src/LanguageServer/extension.ts
@@ -1430,14 +1430,21 @@ async function onCopilotHover(): Promise<void> {
 
     // Gather the content for the query from the client.
     const requestInfo = await copilotHoverProvider.getRequestInfo(hoverDocument, hoverPosition);
-    for (const file of requestInfo.files) {
-        const fileUri = vscode.Uri.file(file);
-        if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
-            telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available due to content exclusion." });
-            await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available.") + "\n\n" +
-                localize("copilot.hover.excluded", "The file containing this symbol's definition or declaration has been excluded from use with Copilot."));
-            return;
+    try {
+        for (const file of requestInfo.files) {
+            const fileUri = vscode.Uri.file(file);
+            if (await vscodelm.fileIsIgnored(fileUri, copilotHoverProvider.getCurrentHoverCancellationToken() ?? CancellationToken.None)) {
+                telemetry.logLanguageServerEvent("CopilotHover", { "Message": "Copilot summary is not available due to content exclusion." });
+                await showCopilotContent(copilotHoverProvider, hoverDocument, hoverPosition, localize("copilot.hover.unavailable", "Copilot summary is not available.") + "\n\n" +
+                    localize("copilot.hover.excluded", "The file containing this symbol's definition or declaration has been excluded from use with Copilot."));
+                return;
+            }
         }
+    } catch (err) {
+        if (err instanceof Error) {
+            await reportCopilotFailure(copilotHoverProvider, hoverDocument, hoverPosition, err.message);
+        }
+        return;
     }
     if (requestInfo.content.length === 0) {
         // Context is not available for this symbol.