Simple directory mentions (#14970)

- Adds simple support for directory mentions in the TUI.
- Codex App/VS Code will require minor change to recognize a directory
mention as such and change the link behavior.
- Directory mentions have a trailing slash to differentiate from
extensionless files


<img width="972" height="382" alt="image"
src="https://github.com/user-attachments/assets/8035b1eb-0978-465b-8d7a-4db2e5feca39"
/>
<img width="978" height="228" alt="image"
src="https://github.com/user-attachments/assets/af22cf0b-dd10-4440-9bee-a09915f6ba52"
/>

codex-rs/app-server-protocol/schema/json/FuzzyFileSearchResponse.json

@@ -1,6 +1,13 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "definitions": {
+    "FuzzyFileSearchMatchType": {
+      "enum": [
+        "file",
+        "directory"
+      ],
+      "type": "string"
+    },
     "FuzzyFileSearchResult": {
       "description": "Superset of [`codex_file_search::FileMatch`]",
       "properties": {
@@ -18,6 +25,9 @@
             "null"
           ]
         },
+        "match_type": {
+          "$ref": "#/definitions/FuzzyFileSearchMatchType"
+        },
         "path": {
           "type": "string"
         },
@@ -32,6 +42,7 @@
       },
       "required": [
         "file_name",
+        "match_type",
         "path",
         "root",
         "score"

codex-rs/app-server-protocol/schema/json/FuzzyFileSearchSessionUpdatedNotification.json

@@ -1,6 +1,13 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "definitions": {
+    "FuzzyFileSearchMatchType": {
+      "enum": [
+        "file",
+        "directory"
+      ],
+      "type": "string"
+    },
     "FuzzyFileSearchResult": {
       "description": "Superset of [`codex_file_search::FileMatch`]",
       "properties": {
@@ -18,6 +25,9 @@
             "null"
           ]
         },
+        "match_type": {
+          "$ref": "#/definitions/FuzzyFileSearchMatchType"
+        },
         "path": {
           "type": "string"
         },
@@ -32,6 +42,7 @@
       },
       "required": [
         "file_name",
+        "match_type",
         "path",
         "root",
         "score"

codex-rs/app-server-protocol/schema/json/ServerNotification.json

@@ -964,6 +964,13 @@
       ],
       "type": "object"
     },
+    "FuzzyFileSearchMatchType": {
+      "enum": [
+        "file",
+        "directory"
+      ],
+      "type": "string"
+    },
     "FuzzyFileSearchResult": {
       "description": "Superset of [`codex_file_search::FileMatch`]",
       "properties": {
@@ -981,6 +988,9 @@
             "null"
           ]
         },
+        "match_type": {
+          "$ref": "#/definitions/FuzzyFileSearchMatchType"
+        },
         "path": {
           "type": "string"
         },
@@ -995,6 +1005,7 @@
       },
       "required": [
         "file_name",
+        "match_type",
         "path",
         "root",
         "score"

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json

@@ -2034,6 +2034,13 @@
       "title": "FileChangeRequestApprovalResponse",
       "type": "object"
     },
+    "FuzzyFileSearchMatchType": {
+      "enum": [
+        "file",
+        "directory"
+      ],
+      "type": "string"
+    },
     "FuzzyFileSearchParams": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
@@ -2093,6 +2100,9 @@
             "null"
           ]
         },
+        "match_type": {
+          "$ref": "#/definitions/FuzzyFileSearchMatchType"
+        },
         "path": {
           "type": "string"
         },
@@ -2107,6 +2117,7 @@
       },
       "required": [
         "file_name",
+        "match_type",
         "path",
         "root",
         "score"

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json

@@ -4327,6 +4327,13 @@
         }
       ]
     },
+    "FuzzyFileSearchMatchType": {
+      "enum": [
+        "file",
+        "directory"
+      ],
+      "type": "string"
+    },
     "FuzzyFileSearchParams": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
@@ -4370,6 +4377,9 @@
             "null"
           ]
         },
+        "match_type": {
+          "$ref": "#/definitions/FuzzyFileSearchMatchType"
+        },
         "path": {
           "type": "string"
         },
@@ -4384,6 +4394,7 @@
       },
       "required": [
         "file_name",
+        "match_type",
         "path",
         "root",
         "score"

codex-rs/app-server-protocol/schema/typescript/FuzzyFileSearchMatchType.ts

@@ -0,0 +1,5 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+export type FuzzyFileSearchMatchType = "file" | "directory";

codex-rs/app-server-protocol/schema/typescript/FuzzyFileSearchResult.ts

@@ -1,8 +1,9 @@
 // GENERATED CODE! DO NOT MODIFY BY HAND!
 
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { FuzzyFileSearchMatchType } from "./FuzzyFileSearchMatchType";
 
 /**
  * Superset of [`codex_file_search::FileMatch`]
  */
-export type FuzzyFileSearchResult = { root: string, path: string, file_name: string, score: number, indices: Array<number> | null, };
+export type FuzzyFileSearchResult = { root: string, path: string, match_type: FuzzyFileSearchMatchType, file_name: string, score: number, indices: Array<number> | null, };

codex-rs/app-server-protocol/schema/typescript/index.ts

@@ -18,6 +18,7 @@ export type { FileChange } from "./FileChange";
 export type { ForcedLoginMethod } from "./ForcedLoginMethod";
 export type { FunctionCallOutputBody } from "./FunctionCallOutputBody";
 export type { FunctionCallOutputContentItem } from "./FunctionCallOutputContentItem";
+export type { FuzzyFileSearchMatchType } from "./FuzzyFileSearchMatchType";
 export type { FuzzyFileSearchParams } from "./FuzzyFileSearchParams";
 export type { FuzzyFileSearchResponse } from "./FuzzyFileSearchResponse";
 export type { FuzzyFileSearchResult } from "./FuzzyFileSearchResult";

codex-rs/app-server-protocol/src/protocol/common.rs

@@ -800,11 +800,20 @@ pub struct FuzzyFileSearchParams {
 pub struct FuzzyFileSearchResult {
     pub root: String,
     pub path: String,
+    pub match_type: FuzzyFileSearchMatchType,
     pub file_name: String,
     pub score: u32,
     pub indices: Option<Vec<u32>>,
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq, JsonSchema, TS)]
+#[serde(rename_all = "camelCase")]
+#[ts(rename_all = "camelCase")]
+pub enum FuzzyFileSearchMatchType {
+    File,
+    Directory,
+}
+
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]
 pub struct FuzzyFileSearchResponse {
     pub files: Vec<FuzzyFileSearchResult>,