Add Language Model Failure Plugin snippets and documentation. Closes #306

Closes #306

Author: garrytrinder

CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Code actions: Support for JSONC files
 - Code lens: Support for JSONC files
+- Snippets: Added `devproxy-plugin-language-model-failure` - LanguageModelFailurePlugin instance
+- Snippets: Added `devproxy-plugin-language-model-failure-config` - LanguageModelFailurePlugin config section
 
 ### Changed:
 

README.md

@@ -138,6 +138,8 @@ See [Dev Proxy MCP Server](https://github.com/dev-proxy-tools/mcp) for more info
 | `devproxy-plugin-http-file-generator-config` | HttpFileGeneratorPlugin config section |
 | `devproxy-plugin-latency` | LatencyPlugin instance |
 | `devproxy-plugin-latency-config` | LatencyPlugin config section |
+| `devproxy-plugin-language-model-failure` | LanguageModelFailurePlugin instance |
+| `devproxy-plugin-language-model-failure-config` | LanguageModelFailurePlugin config section |
 | `devproxy-plugin-minimal-csom-permissions` | MinimalCsomPermissionsPlugin instance |
 | `devproxy-plugin-minimal-csom-permissions-config` | MinimalCsomPermissionsPlugin config section |
 | `devproxy-plugin-minimal-permissions` | MinimalPermissionsPlugin instance |

src/constants.ts

@@ -111,6 +111,13 @@ export const pluginSnippets: PluginSnippets = {
       required: false,
     }
   },
+  LanguageModelFailurePlugin: {
+    instance: 'devproxy-plugin-language-model-failure',
+    config: {
+      name: 'devproxy-plugin-language-model-failure-config',
+      required: true,
+    }
+  },
   LatencyPlugin: {
     instance: 'devproxy-plugin-latency',
     config: {
@@ -290,6 +297,10 @@ export const pluginDocs: PluginDocs = {
     name: 'HTTP File Generator Plugin',
     url: 'https://learn.microsoft.com/microsoft-cloud/dev/dev-proxy/technical-reference/httpfilegeneratorplugin',
   },
+  LanguageModelFailurePlugin: {
+    name: 'Language Model Failure Plugin',
+    url: 'https://learn.microsoft.com/microsoft-cloud/dev/dev-proxy/technical-reference/languagemodelfailureplugin',
+  },
   LatencyPlugin: {
     name: 'Latency Plugin',
     url: 'https://learn.microsoft.com/microsoft-cloud/dev/dev-proxy/technical-reference/latencyplugin',

src/snippets.json

@@ -707,6 +707,32 @@
     ],
     "description": "LatencyPlugin config section"
   },
+  "LanguageModelFailurePlugin": {
+    "prefix": "devproxy-plugin-language-model-failure",
+    "body": [
+      "{",
+      "\t\"name\": \"LanguageModelFailurePlugin\",",
+      "\t\"enabled\": true,",
+      "\t\"pluginPath\": \"~appFolder/plugins/DevProxy.Plugins.dll\",",
+      "\t\"configSection\": \"languageModelFailurePlugin\"",
+      "}"
+    ],
+    "description": "LanguageModelFailurePlugin instance"
+  },
+  "LanguageModelFailurePluginConfig": {
+    "prefix": "devproxy-plugin-language-model-failure-config",
+    "body": [
+      "\"languageModelFailurePlugin\": {",
+      "\t\"\\$schema\": \"https://raw.githubusercontent.com/dotnet/dev-proxy/main/schemas/v1.0.0/languagemodelfailureplugin.schema.json\",",
+      "\t\"rate\": 20,",
+      "\t\"failures\": [",
+      "\t\t\"rate-limit-reached\",",
+      "\t\t\"quota-exceeded\"",
+      "\t]",
+      "}"
+    ],
+    "description": "LanguageModelFailurePlugin config section"
+  },
   "MinimalCsomPermissionsPlugin": {
     "prefix": "devproxy-plugin-minimal-csom-permissions",
     "body": [