diff --git a/dist/src/tools/create_collection.js b/dist/src/tools/create_collection.js
index 31e7f0d..3f61ae1 100644
--- a/dist/src/tools/create_collection.js
+++ b/dist/src/tools/create_collection.js
@@ -1,9 +1,9 @@
 import { z } from 'zod';
 import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
 export const method = 'create-collection';
-export const description = 'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n';
+export const description = 'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in the oldest personal Internal workspace you own.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n';
 export const parameters = z.object({
-    workspace: z.string().describe("The workspace's ID.").optional(),
+    workspace: z.string().describe("The workspace's ID."),
     collection: z
         .object({
         info: z
@@ -32,7 +32,10 @@ export const parameters = z.object({
                     .string()
                     .describe("The variable's description. Doesn't apply to collection-level variables.")
                     .optional(),
-                disabled: z.boolean().default(false),
+                disabled: z
+                    .boolean()
+                    .describe('If true, the variable is not enabled.')
+                    .default(false),
             })
                 .describe('Information about the variable.'))
                 .describe("A list of the collection's [variables](https://learning.postman.com/docs/sending-requests/variables/variables/). Make certain not to include sensitive information in variables.")
@@ -515,7 +518,10 @@ export const parameters = z.object({
                 .string()
                 .describe("The variable's description. Doesn't apply to collection-level variables.")
                 .optional(),
-            disabled: z.boolean().default(false),
+            disabled: z
+                .boolean()
+                .describe('If true, the variable is not enabled.')
+                .default(false),
         })
             .describe('Information about the variable.'))
             .describe("A list of the collection's [variables](https://learning.postman.com/docs/sending-requests/variables/variables/). Make certain not to include sensitive information in variables.")
@@ -771,7 +777,7 @@ export const parameters = z.object({
         .optional(),
 });
 export const annotations = {
-    title: 'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n',
+    title: 'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in the oldest personal Internal workspace you own.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n',
     readOnlyHint: false,
     destructiveHint: false,
     idempotentHint: false,
diff --git a/dist/src/tools/create_environment.js b/dist/src/tools/create_environment.js
index 11f8f56..ec57266 100644
--- a/dist/src/tools/create_environment.js
+++ b/dist/src/tools/create_environment.js
@@ -1,9 +1,9 @@
 import { z } from 'zod';
 import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
 export const method = 'create-environment';
-export const description = 'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n';
+export const description = 'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the environment in the oldest personal Internal workspace you own.\n';
 export const parameters = z.object({
-    workspace: z.string().describe("The workspace's ID.").optional(),
+    workspace: z.string().describe("The workspace's ID."),
     environment: z
         .object({
         name: z.string().describe("The environment's name."),
@@ -17,10 +17,11 @@ export const parameters = z.object({
             .describe("Information about the environment's variables.")
             .optional(),
     })
+        .describe('Information about the environment.')
         .optional(),
 });
 export const annotations = {
-    title: 'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n',
+    title: 'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the environment in the oldest personal Internal workspace you own.\n',
     readOnlyHint: false,
     destructiveHint: false,
     idempotentHint: false,
diff --git a/dist/src/tools/create_mock.js b/dist/src/tools/create_mock.js
index 5f5b06e..b6add34 100644
--- a/dist/src/tools/create_mock.js
+++ b/dist/src/tools/create_mock.js
@@ -1,9 +1,9 @@
 import { z } from 'zod';
 import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
 export const method = 'create-mock';
-export const description = 'Creates a mock server in a collection.\n\n**Note:**\n\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in your [Personal\nworkspace](https://learning.postman.com/docs/collaborating-in-postman/using-workspaces/creating-workspaces/).\n- You cannot create mocks for collections added to an API definition.\n';
+export const description = 'Creates a mock server in a collection.\n\n**Note:**\n\n- You cannot create mocks for collections added to an API definition.\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in the oldest personal Internal workspace you own.\n';
 export const parameters = z.object({
-    workspaceId: z.string().describe("The workspace's ID.").optional(),
+    workspace: z.string().describe("The workspace's ID."),
     mock: z
         .object({
         collection: z.string().describe("The unique ID of the mock's associated collection."),
@@ -20,7 +20,7 @@ export const parameters = z.object({
         .optional(),
 });
 export const annotations = {
-    title: 'Creates a mock server in a collection.\n\n**Note:**\n\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in your [Personal\nworkspace](https://learning.postman.com/docs/collaborating-in-postman/using-workspaces/creating-workspaces/).\n- You cannot create mocks for collections added to an API definition.\n',
+    title: 'Creates a mock server in a collection.\n\n**Note:**\n\n- You cannot create mocks for collections added to an API definition.\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in the oldest personal Internal workspace you own.\n',
     readOnlyHint: false,
     destructiveHint: false,
     idempotentHint: false,
@@ -29,8 +29,8 @@ export async function handler(params, extra) {
     try {
         const endpoint = `/mocks`;
         const query = new URLSearchParams();
-        if (params.workspaceId !== undefined)
-            query.set('workspaceId', String(params.workspaceId));
+        if (params.workspace !== undefined)
+            query.set('workspace', String(params.workspace));
         const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
         const bodyPayload = {};
         if (params.mock !== undefined)
diff --git a/dist/src/tools/create_monitor.js b/dist/src/tools/create_monitor.js
index 805225e..f61cedd 100644
--- a/dist/src/tools/create_monitor.js
+++ b/dist/src/tools/create_monitor.js
@@ -1,9 +1,9 @@
 import { z } from 'zod';
 import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
 export const method = 'create-monitor';
-export const description = 'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` parameter, the monitor is created in your personal workspace.\n';
+export const description = 'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` query parameter, the system creates the monitor in the oldest personal Internal workspace you own.\n';
 export const parameters = z.object({
-    workspace: z.string().describe("The workspace's ID.").optional(),
+    workspace: z.string().describe("The workspace's ID."),
     monitor: z
         .object({
         name: z.string().describe("The monitor's name."),
@@ -106,10 +106,11 @@ export const parameters = z.object({
             .describe("Information about the monitor's notification settings.")
             .optional(),
     })
+        .describe('Information about the monitor.')
         .optional(),
 });
 export const annotations = {
-    title: 'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` parameter, the monitor is created in your personal workspace.\n',
+    title: 'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` query parameter, the system creates the monitor in the oldest personal Internal workspace you own.\n',
     readOnlyHint: false,
     destructiveHint: false,
     idempotentHint: false,
diff --git a/dist/src/tools/create_spec.js b/dist/src/tools/create_spec.js
index dd7811f..cf66913 100644
--- a/dist/src/tools/create_spec.js
+++ b/dist/src/tools/create_spec.js
@@ -1,22 +1,40 @@
 import { z } from 'zod';
 import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
 export const method = 'create-spec';
-export const description = "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/).\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- This endpoint does not yet support multiple files.\n";
+export const description = "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/). Specifications can be single or multi-file.\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n";
 export const parameters = z.object({
     workspaceId: z.string().describe("The workspace's ID."),
     name: z.string().describe("The specification's name."),
     type: z.enum(['OPENAPI:3.0', 'ASYNCAPI:2.0']).describe("The specification's type."),
     files: z
-        .array(z.object({
-        path: z
-            .string()
-            .describe("The file's path. Accepts the `index.json` or `index.yaml` value."),
-        content: z.string().describe("The file's stringified contents."),
+        .array(z.any().superRefine((x, ctx) => {
+        const schemas = [
+            z.object({
+                path: z.string().describe("The file's path. Accepts JSON or YAML files."),
+                content: z.string().describe("The file's stringified contents."),
+                type: z
+                    .enum(['DEFAULT', 'ROOT'])
+                    .describe('The type of file. This property is required when creating multi-file specifications:\n- `ROOT` — The file containing the full OpenAPI structure. This serves as the entry point for the API spec and references other (`DEFAULT`) spec files. Multi-file specs can only have one root file.\n- `DEFAULT` — A file referenced by the `ROOT` file.\n'),
+            }),
+            z.object({
+                path: z.string().describe("The file's path. Accepts JSON or YAML files."),
+                content: z.string().describe("The file's stringified contents."),
+            }),
+        ];
+        const errors = schemas.reduce((errors, schema) => ((result) => (result.error ? [...errors, result.error] : errors))(schema.safeParse(x)), []);
+        if (schemas.length - errors.length !== 1) {
+            ctx.addIssue({
+                path: ctx.path,
+                code: 'invalid_union',
+                unionErrors: errors,
+                message: 'Invalid input: Should pass single schema',
+            });
+        }
     }))
         .describe("A list of the specification's files and their contents."),
 });
 export const annotations = {
-    title: "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/).\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- This endpoint does not yet support multiple files.\n",
+    title: "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/). Specifications can be single or multi-file.\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n",
     readOnlyHint: false,
     destructiveHint: false,
     idempotentHint: false,
diff --git a/dist/src/tools/create_spec_file.js b/dist/src/tools/create_spec_file.js
new file mode 100644
index 0000000..6eedee9
--- /dev/null
+++ b/dist/src/tools/create_spec_file.js
@@ -0,0 +1,47 @@
+import { z } from 'zod';
+import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
+export const method = 'create-spec-file';
+export const description = 'Creates an API specification file.\n\n**Note:**\n\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Creating a spec file assigns it the \\`DEFAULT\\` file type.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n';
+export const parameters = z.object({
+    specId: z.string().describe("The spec's ID."),
+    path: z.string().describe("The file's path. Accepts JSON or YAML files."),
+    content: z.string().describe("The file's stringified contents."),
+});
+export const annotations = {
+    title: 'Creates an API specification file.\n\n**Note:**\n\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Creating a spec file assigns it the \\`DEFAULT\\` file type.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n',
+    readOnlyHint: false,
+    destructiveHint: false,
+    idempotentHint: false,
+};
+export async function handler(params, extra) {
+    try {
+        const endpoint = `/specs/${params.specId}/files`;
+        const query = new URLSearchParams();
+        const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+        const bodyPayload = {};
+        if (params.path !== undefined)
+            bodyPayload.path = params.path;
+        if (params.content !== undefined)
+            bodyPayload.content = params.content;
+        const result = await fetchPostmanAPI(url, {
+            method: 'POST',
+            body: JSON.stringify(bodyPayload),
+            contentType: ContentType.Json,
+            apiKey: extra.apiKey,
+            headers: extra.headers,
+        });
+        return {
+            content: [
+                {
+                    type: 'text',
+                    text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+                },
+            ],
+        };
+    }
+    catch (e) {
+        return {
+            content: [{ type: 'text', text: `Failed: ${e.message}` }],
+        };
+    }
+}
diff --git a/dist/src/tools/delete_spec_file.js b/dist/src/tools/delete_spec_file.js
new file mode 100644
index 0000000..620a3f8
--- /dev/null
+++ b/dist/src/tools/delete_spec_file.js
@@ -0,0 +1,39 @@
+import { z } from 'zod';
+import { fetchPostmanAPI } from '../clients/postman.js';
+export const method = 'delete-spec-file';
+export const description = 'Deletes a file in an API specification. On success, this returns an HTTP \\`204 No Content\\` response.';
+export const parameters = z.object({
+    specId: z.string().describe("The spec's ID."),
+    filePath: z.string().describe('The path to the file.'),
+});
+export const annotations = {
+    title: 'Deletes a file in an API specification. On success, this returns an HTTP \\`204 No Content\\` response.',
+    readOnlyHint: false,
+    destructiveHint: true,
+    idempotentHint: true,
+};
+export async function handler(params, extra) {
+    try {
+        const endpoint = `/specs/${params.specId}/files/${params.filePath}`;
+        const query = new URLSearchParams();
+        const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+        const result = await fetchPostmanAPI(url, {
+            method: 'DELETE',
+            apiKey: extra.apiKey,
+            headers: extra.headers,
+        });
+        return {
+            content: [
+                {
+                    type: 'text',
+                    text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+                },
+            ],
+        };
+    }
+    catch (e) {
+        return {
+            content: [{ type: 'text', text: `Failed: ${e.message}` }],
+        };
+    }
+}
diff --git a/dist/src/tools/create_update_spec_file.js b/dist/src/tools/get_spec_file.js
similarity index 62%
rename from dist/src/tools/create_update_spec_file.js
rename to dist/src/tools/get_spec_file.js
index eae8593..ce784f5 100644
--- a/dist/src/tools/create_update_spec_file.js
+++ b/dist/src/tools/get_spec_file.js
@@ -1,15 +1,14 @@
 import { z } from 'zod';
-import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
-export const method = 'create-update-spec-file';
-export const description = "Creates or updates an API specification's file.\n";
+import { fetchPostmanAPI } from '../clients/postman.js';
+export const method = 'get-spec-file';
+export const description = "Gets the contents of an API specification's file.";
 export const parameters = z.object({
     specId: z.string().describe("The spec's ID."),
     filePath: z.string().describe('The path to the file.'),
-    content: z.string().describe("The specification's stringified contents."),
 });
 export const annotations = {
-    title: "Creates or updates an API specification's file.\n",
-    readOnlyHint: false,
+    title: "Gets the contents of an API specification's file.",
+    readOnlyHint: true,
     destructiveHint: false,
     idempotentHint: true,
 };
@@ -18,13 +17,8 @@ export async function handler(params, extra) {
         const endpoint = `/specs/${params.specId}/files/${params.filePath}`;
         const query = new URLSearchParams();
         const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
-        const bodyPayload = {};
-        if (params.content !== undefined)
-            bodyPayload.content = params.content;
         const result = await fetchPostmanAPI(url, {
-            method: 'PATCH',
-            body: JSON.stringify(bodyPayload),
-            contentType: ContentType.Json,
+            method: 'GET',
             apiKey: extra.apiKey,
             headers: extra.headers,
         });
diff --git a/dist/src/tools/get_spec_files.js b/dist/src/tools/get_spec_files.js
new file mode 100644
index 0000000..f5bd0ac
--- /dev/null
+++ b/dist/src/tools/get_spec_files.js
@@ -0,0 +1,36 @@
+import { z } from 'zod';
+import { fetchPostmanAPI } from '../clients/postman.js';
+export const method = 'get-spec-files';
+export const description = 'Gets all the files in an API specification.';
+export const parameters = z.object({ specId: z.string().describe("The spec's ID.") });
+export const annotations = {
+    title: 'Gets all the files in an API specification.',
+    readOnlyHint: true,
+    destructiveHint: false,
+    idempotentHint: true,
+};
+export async function handler(params, extra) {
+    try {
+        const endpoint = `/specs/${params.specId}/files`;
+        const query = new URLSearchParams();
+        const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+        const result = await fetchPostmanAPI(url, {
+            method: 'GET',
+            apiKey: extra.apiKey,
+            headers: extra.headers,
+        });
+        return {
+            content: [
+                {
+                    type: 'text',
+                    text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+                },
+            ],
+        };
+    }
+    catch (e) {
+        return {
+            content: [{ type: 'text', text: `Failed: ${e.message}` }],
+        };
+    }
+}
diff --git a/dist/src/tools/put_environment.js b/dist/src/tools/put_environment.js
index c81fd57..7413616 100644
--- a/dist/src/tools/put_environment.js
+++ b/dist/src/tools/put_environment.js
@@ -17,6 +17,7 @@ export const parameters = z.object({
             .describe("Information about the environment's variables.")
             .optional(),
     })
+        .describe('Information about the environment.')
         .optional(),
 });
 export const annotations = {
diff --git a/dist/src/tools/update_monitor.js b/dist/src/tools/update_monitor.js
index 03e290f..6453453 100644
--- a/dist/src/tools/update_monitor.js
+++ b/dist/src/tools/update_monitor.js
@@ -102,6 +102,7 @@ export const parameters = z.object({
             .describe("Information about the monitor's notification settings.")
             .optional(),
     })
+        .describe('Information about the monitor.')
         .optional(),
 });
 export const annotations = {
diff --git a/dist/src/tools/update_spec_file.js b/dist/src/tools/update_spec_file.js
new file mode 100644
index 0000000..360f8fd
--- /dev/null
+++ b/dist/src/tools/update_spec_file.js
@@ -0,0 +1,54 @@
+import { z } from 'zod';
+import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
+export const method = 'update-spec-file';
+export const description = "Updates an API specification's file.\n\n**Note:**\n\n- This endpoint does not accept an empty request body. You must pass one of the accepted values.\n- This endpoint does not accept multiple request body properties in a single call. For example, you cannot pass both the \\`content\\` and \\`type\\` property at the same time.\n- Multi-file specifications can only have one root file.\n- When updating a file type to \\`ROOT\\`, the previous root file is updated to the \\`DEFAULT\\` file type.\n- Files cannot exceed a maximum of 10 MB in size.\n";
+export const parameters = z.object({
+    specId: z.string().describe("The spec's ID."),
+    filePath: z.string().describe('The path to the file.'),
+    name: z.string().describe("The file's name.").optional(),
+    type: z
+        .enum(['DEFAULT', 'ROOT'])
+        .describe('The type of file:\n- `ROOT` — The file containing the full OpenAPI structure. This serves as the entry point for the API spec and references other (`DEFAULT`) spec files. Multi-file specs can only have one root file.\n- `DEFAULT` — A file referenced by the `ROOT` file.\n')
+        .optional(),
+    content: z.string().describe("The specification's stringified contents.").optional(),
+});
+export const annotations = {
+    title: "Updates an API specification's file.\n\n**Note:**\n\n- This endpoint does not accept an empty request body. You must pass one of the accepted values.\n- This endpoint does not accept multiple request body properties in a single call. For example, you cannot pass both the \\`content\\` and \\`type\\` property at the same time.\n- Multi-file specifications can only have one root file.\n- When updating a file type to \\`ROOT\\`, the previous root file is updated to the \\`DEFAULT\\` file type.\n- Files cannot exceed a maximum of 10 MB in size.\n",
+    readOnlyHint: false,
+    destructiveHint: false,
+    idempotentHint: true,
+};
+export async function handler(params, extra) {
+    try {
+        const endpoint = `/specs/${params.specId}/files/${params.filePath}`;
+        const query = new URLSearchParams();
+        const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+        const bodyPayload = {};
+        if (params.name !== undefined)
+            bodyPayload.name = params.name;
+        if (params.type !== undefined)
+            bodyPayload.type = params.type;
+        if (params.content !== undefined)
+            bodyPayload.content = params.content;
+        const result = await fetchPostmanAPI(url, {
+            method: 'PATCH',
+            body: JSON.stringify(bodyPayload),
+            contentType: ContentType.Json,
+            apiKey: extra.apiKey,
+            headers: extra.headers,
+        });
+        return {
+            content: [
+                {
+                    type: 'text',
+                    text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+                },
+            ],
+        };
+    }
+    catch (e) {
+        return {
+            content: [{ type: 'text', text: `Failed: ${e.message}` }],
+        };
+    }
+}
diff --git a/src/tools/create_collection.ts b/src/tools/create_collection.ts
index 754549b..12fe83c 100644
--- a/src/tools/create_collection.ts
+++ b/src/tools/create_collection.ts
@@ -4,9 +4,9 @@ import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
 
 export const method = 'create-collection';
 export const description =
-  'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n';
+  'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in the oldest personal Internal workspace you own.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n';
 export const parameters = z.object({
-  workspace: z.string().describe("The workspace's ID.").optional(),
+  workspace: z.string().describe("The workspace's ID."),
   collection: z
     .object({
       info: z
@@ -41,7 +41,10 @@ export const parameters = z.object({
                         "The variable's description. Doesn't apply to collection-level variables."
                       )
                       .optional(),
-                    disabled: z.boolean().default(false),
+                    disabled: z
+                      .boolean()
+                      .describe('If true, the variable is not enabled.')
+                      .default(false),
                   })
                   .describe('Information about the variable.')
               )
@@ -664,7 +667,10 @@ export const parameters = z.object({
                   "The variable's description. Doesn't apply to collection-level variables."
                 )
                 .optional(),
-              disabled: z.boolean().default(false),
+              disabled: z
+                .boolean()
+                .describe('If true, the variable is not enabled.')
+                .default(false),
             })
             .describe('Information about the variable.')
         )
@@ -1000,7 +1006,7 @@ export const parameters = z.object({
 });
 export const annotations = {
   title:
-    'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n',
+    'Creates a collection using the [Postman Collection v2.1.0 schema format](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n\n**Note:**\n\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in the oldest personal Internal workspace you own.\n- For a complete list of available property values for this endpoint, use the following references available in the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html):\n    - \\`info\\` object — Refer to the **Information** entry.\n    - \\`item\\` object — Refer to the **Items** entry.\n- For all other possible values, refer to the [Postman Collection Format documentation](https://schema.postman.com/collection/json/v2.1.0/draft-07/docs/index.html).\n',
   readOnlyHint: false,
   destructiveHint: false,
   idempotentHint: false,
diff --git a/src/tools/create_environment.ts b/src/tools/create_environment.ts
index 4c27f1d..8ca737e 100644
--- a/src/tools/create_environment.ts
+++ b/src/tools/create_environment.ts
@@ -4,9 +4,9 @@ import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
 
 export const method = 'create-environment';
 export const description =
-  'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n';
+  'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the environment in the oldest personal Internal workspace you own.\n';
 export const parameters = z.object({
-  workspace: z.string().describe("The workspace's ID.").optional(),
+  workspace: z.string().describe("The workspace's ID."),
   environment: z
     .object({
       name: z.string().describe("The environment's name."),
@@ -22,11 +22,12 @@ export const parameters = z.object({
         .describe("Information about the environment's variables.")
         .optional(),
     })
+    .describe('Information about the environment.')
     .optional(),
 });
 export const annotations = {
   title:
-    'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the collection in your "My Workspace" workspace.\n',
+    'Creates an environment.\n\n**Note:**\n\n- The request body size cannot exceed the maximum allowed size of 30MB.\n- If you receive an HTTP \\`411 Length Required\\` error response, manually pass the \\`Content-Length\\` header and its value in the request header.\n- If you do not include the \\`workspace\\` query parameter, the system creates the environment in the oldest personal Internal workspace you own.\n',
   readOnlyHint: false,
   destructiveHint: false,
   idempotentHint: false,
diff --git a/src/tools/create_mock.ts b/src/tools/create_mock.ts
index d1bcc91..8a81066 100644
--- a/src/tools/create_mock.ts
+++ b/src/tools/create_mock.ts
@@ -4,9 +4,9 @@ import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
 
 export const method = 'create-mock';
 export const description =
-  'Creates a mock server in a collection.\n\n**Note:**\n\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in your [Personal\nworkspace](https://learning.postman.com/docs/collaborating-in-postman/using-workspaces/creating-workspaces/).\n- You cannot create mocks for collections added to an API definition.\n';
+  'Creates a mock server in a collection.\n\n**Note:**\n\n- You cannot create mocks for collections added to an API definition.\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in the oldest personal Internal workspace you own.\n';
 export const parameters = z.object({
-  workspaceId: z.string().describe("The workspace's ID.").optional(),
+  workspace: z.string().describe("The workspace's ID."),
   mock: z
     .object({
       collection: z.string().describe("The unique ID of the mock's associated collection."),
@@ -26,7 +26,7 @@ export const parameters = z.object({
 });
 export const annotations = {
   title:
-    'Creates a mock server in a collection.\n\n**Note:**\n\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in your [Personal\nworkspace](https://learning.postman.com/docs/collaborating-in-postman/using-workspaces/creating-workspaces/).\n- You cannot create mocks for collections added to an API definition.\n',
+    'Creates a mock server in a collection.\n\n**Note:**\n\n- You cannot create mocks for collections added to an API definition.\n- If you do not include the \\`workspaceId\\` query parameter, the system creates the mock server in the oldest personal Internal workspace you own.\n',
   readOnlyHint: false,
   destructiveHint: false,
   idempotentHint: false,
@@ -39,7 +39,7 @@ export async function handler(
   try {
     const endpoint = `/mocks`;
     const query = new URLSearchParams();
-    if (params.workspaceId !== undefined) query.set('workspaceId', String(params.workspaceId));
+    if (params.workspace !== undefined) query.set('workspace', String(params.workspace));
     const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
     const bodyPayload: any = {};
     if (params.mock !== undefined) bodyPayload.mock = params.mock;
diff --git a/src/tools/create_monitor.ts b/src/tools/create_monitor.ts
index c70d37c..d7feaae 100644
--- a/src/tools/create_monitor.ts
+++ b/src/tools/create_monitor.ts
@@ -4,9 +4,9 @@ import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
 
 export const method = 'create-monitor';
 export const description =
-  'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` parameter, the monitor is created in your personal workspace.\n';
+  'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` query parameter, the system creates the monitor in the oldest personal Internal workspace you own.\n';
 export const parameters = z.object({
-  workspace: z.string().describe("The workspace's ID.").optional(),
+  workspace: z.string().describe("The workspace's ID."),
   monitor: z
     .object({
       name: z.string().describe("The monitor's name."),
@@ -123,11 +123,12 @@ export const parameters = z.object({
         .describe("Information about the monitor's notification settings.")
         .optional(),
     })
+    .describe('Information about the monitor.')
     .optional(),
 });
 export const annotations = {
   title:
-    'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` parameter, the monitor is created in your personal workspace.\n',
+    'Creates a monitor.\n\n**Note:**\n\n- You cannot create monitors for collections added to an API definition.\n- If you do not pass the \\`workspace\\` query parameter, the system creates the monitor in the oldest personal Internal workspace you own.\n',
   readOnlyHint: false,
   destructiveHint: false,
   idempotentHint: false,
diff --git a/src/tools/create_spec.ts b/src/tools/create_spec.ts
index 6d29c57..94f5e13 100644
--- a/src/tools/create_spec.ts
+++ b/src/tools/create_spec.ts
@@ -4,25 +4,49 @@ import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
 
 export const method = 'create-spec';
 export const description =
-  "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/).\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- This endpoint does not yet support multiple files.\n";
+  "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/). Specifications can be single or multi-file.\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n";
 export const parameters = z.object({
   workspaceId: z.string().describe("The workspace's ID."),
   name: z.string().describe("The specification's name."),
   type: z.enum(['OPENAPI:3.0', 'ASYNCAPI:2.0']).describe("The specification's type."),
   files: z
     .array(
-      z.object({
-        path: z
-          .string()
-          .describe("The file's path. Accepts the `index.json` or `index.yaml` value."),
-        content: z.string().describe("The file's stringified contents."),
+      z.any().superRefine((x, ctx) => {
+        const schemas = [
+          z.object({
+            path: z.string().describe("The file's path. Accepts JSON or YAML files."),
+            content: z.string().describe("The file's stringified contents."),
+            type: z
+              .enum(['DEFAULT', 'ROOT'])
+              .describe(
+                'The type of file. This property is required when creating multi-file specifications:\n- `ROOT` — The file containing the full OpenAPI structure. This serves as the entry point for the API spec and references other (`DEFAULT`) spec files. Multi-file specs can only have one root file.\n- `DEFAULT` — A file referenced by the `ROOT` file.\n'
+              ),
+          }),
+          z.object({
+            path: z.string().describe("The file's path. Accepts JSON or YAML files."),
+            content: z.string().describe("The file's stringified contents."),
+          }),
+        ];
+        const errors = schemas.reduce<z.ZodError[]>(
+          (errors, schema) =>
+            ((result) => (result.error ? [...errors, result.error] : errors))(schema.safeParse(x)),
+          []
+        );
+        if (schemas.length - errors.length !== 1) {
+          ctx.addIssue({
+            path: ctx.path,
+            code: 'invalid_union',
+            unionErrors: errors,
+            message: 'Invalid input: Should pass single schema',
+          });
+        }
       })
     )
     .describe("A list of the specification's files and their contents."),
 });
 export const annotations = {
   title:
-    "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/).\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- This endpoint does not yet support multiple files.\n",
+    "Creates an API specification in Postman's [Spec Hub](https://learning.postman.com/docs/design-apis/specifications/overview/). Specifications can be single or multi-file.\n\n**Note:**\n- Postman supports OpenAPI 3.0 and AsyncAPI 2.0 specifications.\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n",
   readOnlyHint: false,
   destructiveHint: false,
   idempotentHint: false,
diff --git a/src/tools/create_spec_file.ts b/src/tools/create_spec_file.ts
new file mode 100644
index 0000000..39ae28c
--- /dev/null
+++ b/src/tools/create_spec_file.ts
@@ -0,0 +1,52 @@
+import { z } from 'zod';
+import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
+import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
+
+export const method = 'create-spec-file';
+export const description =
+  'Creates an API specification file.\n\n**Note:**\n\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Creating a spec file assigns it the \\`DEFAULT\\` file type.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n';
+export const parameters = z.object({
+  specId: z.string().describe("The spec's ID."),
+  path: z.string().describe("The file's path. Accepts JSON or YAML files."),
+  content: z.string().describe("The file's stringified contents."),
+});
+export const annotations = {
+  title:
+    'Creates an API specification file.\n\n**Note:**\n\n- If the file path contains a \\`/\\` (forward slash) character, then a folder is created. For example, if the path is the \\`components/schemas.json\\` value, then a \\`components\\` folder is created with the \\`schemas.json\\` file inside.\n- Creating a spec file assigns it the \\`DEFAULT\\` file type.\n- Multi-file specifications can only have one root file.\n- Files cannot exceed a maximum of 10 MB in size.\n',
+  readOnlyHint: false,
+  destructiveHint: false,
+  idempotentHint: false,
+};
+
+export async function handler(
+  params: z.infer<typeof parameters>,
+  extra: { apiKey: string; headers?: IsomorphicHeaders }
+): Promise<{ content: Array<{ type: string; text: string } & Record<string, unknown>> }> {
+  try {
+    const endpoint = `/specs/${params.specId}/files`;
+    const query = new URLSearchParams();
+    const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+    const bodyPayload: any = {};
+    if (params.path !== undefined) bodyPayload.path = params.path;
+    if (params.content !== undefined) bodyPayload.content = params.content;
+    const result = await fetchPostmanAPI(url, {
+      method: 'POST',
+      body: JSON.stringify(bodyPayload),
+      contentType: ContentType.Json,
+      apiKey: extra.apiKey,
+      headers: extra.headers,
+    });
+    return {
+      content: [
+        {
+          type: 'text',
+          text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+        },
+      ],
+    };
+  } catch (e: any) {
+    return {
+      content: [{ type: 'text', text: `Failed: ${e.message}` }],
+    };
+  }
+}
diff --git a/src/tools/delete_spec_file.ts b/src/tools/delete_spec_file.ts
new file mode 100644
index 0000000..c8c379a
--- /dev/null
+++ b/src/tools/delete_spec_file.ts
@@ -0,0 +1,46 @@
+import { z } from 'zod';
+import { fetchPostmanAPI } from '../clients/postman.js';
+import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
+
+export const method = 'delete-spec-file';
+export const description =
+  'Deletes a file in an API specification. On success, this returns an HTTP \\`204 No Content\\` response.';
+export const parameters = z.object({
+  specId: z.string().describe("The spec's ID."),
+  filePath: z.string().describe('The path to the file.'),
+});
+export const annotations = {
+  title:
+    'Deletes a file in an API specification. On success, this returns an HTTP \\`204 No Content\\` response.',
+  readOnlyHint: false,
+  destructiveHint: true,
+  idempotentHint: true,
+};
+
+export async function handler(
+  params: z.infer<typeof parameters>,
+  extra: { apiKey: string; headers?: IsomorphicHeaders }
+): Promise<{ content: Array<{ type: string; text: string } & Record<string, unknown>> }> {
+  try {
+    const endpoint = `/specs/${params.specId}/files/${params.filePath}`;
+    const query = new URLSearchParams();
+    const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+    const result = await fetchPostmanAPI(url, {
+      method: 'DELETE',
+      apiKey: extra.apiKey,
+      headers: extra.headers,
+    });
+    return {
+      content: [
+        {
+          type: 'text',
+          text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+        },
+      ],
+    };
+  } catch (e: any) {
+    return {
+      content: [{ type: 'text', text: `Failed: ${e.message}` }],
+    };
+  }
+}
diff --git a/src/tools/create_update_spec_file.ts b/src/tools/get_spec_file.ts
similarity index 66%
rename from src/tools/create_update_spec_file.ts
rename to src/tools/get_spec_file.ts
index 1fc634a..e467387 100644
--- a/src/tools/create_update_spec_file.ts
+++ b/src/tools/get_spec_file.ts
@@ -1,17 +1,16 @@
 import { z } from 'zod';
-import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
+import { fetchPostmanAPI } from '../clients/postman.js';
 import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
 
-export const method = 'create-update-spec-file';
-export const description = "Creates or updates an API specification's file.\n";
+export const method = 'get-spec-file';
+export const description = "Gets the contents of an API specification's file.";
 export const parameters = z.object({
   specId: z.string().describe("The spec's ID."),
   filePath: z.string().describe('The path to the file.'),
-  content: z.string().describe("The specification's stringified contents."),
 });
 export const annotations = {
-  title: "Creates or updates an API specification's file.\n",
-  readOnlyHint: false,
+  title: "Gets the contents of an API specification's file.",
+  readOnlyHint: true,
   destructiveHint: false,
   idempotentHint: true,
 };
@@ -24,12 +23,8 @@ export async function handler(
     const endpoint = `/specs/${params.specId}/files/${params.filePath}`;
     const query = new URLSearchParams();
     const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
-    const bodyPayload: any = {};
-    if (params.content !== undefined) bodyPayload.content = params.content;
     const result = await fetchPostmanAPI(url, {
-      method: 'PATCH',
-      body: JSON.stringify(bodyPayload),
-      contentType: ContentType.Json,
+      method: 'GET',
       apiKey: extra.apiKey,
       headers: extra.headers,
     });
diff --git a/src/tools/get_spec_files.ts b/src/tools/get_spec_files.ts
new file mode 100644
index 0000000..209a700
--- /dev/null
+++ b/src/tools/get_spec_files.ts
@@ -0,0 +1,41 @@
+import { z } from 'zod';
+import { fetchPostmanAPI } from '../clients/postman.js';
+import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
+
+export const method = 'get-spec-files';
+export const description = 'Gets all the files in an API specification.';
+export const parameters = z.object({ specId: z.string().describe("The spec's ID.") });
+export const annotations = {
+  title: 'Gets all the files in an API specification.',
+  readOnlyHint: true,
+  destructiveHint: false,
+  idempotentHint: true,
+};
+
+export async function handler(
+  params: z.infer<typeof parameters>,
+  extra: { apiKey: string; headers?: IsomorphicHeaders }
+): Promise<{ content: Array<{ type: string; text: string } & Record<string, unknown>> }> {
+  try {
+    const endpoint = `/specs/${params.specId}/files`;
+    const query = new URLSearchParams();
+    const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+    const result = await fetchPostmanAPI(url, {
+      method: 'GET',
+      apiKey: extra.apiKey,
+      headers: extra.headers,
+    });
+    return {
+      content: [
+        {
+          type: 'text',
+          text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+        },
+      ],
+    };
+  } catch (e: any) {
+    return {
+      content: [{ type: 'text', text: `Failed: ${e.message}` }],
+    };
+  }
+}
diff --git a/src/tools/put_environment.ts b/src/tools/put_environment.ts
index 6ef439c..31f1f41 100644
--- a/src/tools/put_environment.ts
+++ b/src/tools/put_environment.ts
@@ -22,6 +22,7 @@ export const parameters = z.object({
         .describe("Information about the environment's variables.")
         .optional(),
     })
+    .describe('Information about the environment.')
     .optional(),
 });
 export const annotations = {
diff --git a/src/tools/update_monitor.ts b/src/tools/update_monitor.ts
index 211723e..e1861e0 100644
--- a/src/tools/update_monitor.ts
+++ b/src/tools/update_monitor.ts
@@ -119,6 +119,7 @@ export const parameters = z.object({
         .describe("Information about the monitor's notification settings.")
         .optional(),
     })
+    .describe('Information about the monitor.')
     .optional(),
 });
 export const annotations = {
diff --git a/src/tools/update_spec_file.ts b/src/tools/update_spec_file.ts
new file mode 100644
index 0000000..abacf55
--- /dev/null
+++ b/src/tools/update_spec_file.ts
@@ -0,0 +1,60 @@
+import { z } from 'zod';
+import { fetchPostmanAPI, ContentType } from '../clients/postman.js';
+import { IsomorphicHeaders } from '@modelcontextprotocol/sdk/types.js';
+
+export const method = 'update-spec-file';
+export const description =
+  "Updates an API specification's file.\n\n**Note:**\n\n- This endpoint does not accept an empty request body. You must pass one of the accepted values.\n- This endpoint does not accept multiple request body properties in a single call. For example, you cannot pass both the \\`content\\` and \\`type\\` property at the same time.\n- Multi-file specifications can only have one root file.\n- When updating a file type to \\`ROOT\\`, the previous root file is updated to the \\`DEFAULT\\` file type.\n- Files cannot exceed a maximum of 10 MB in size.\n";
+export const parameters = z.object({
+  specId: z.string().describe("The spec's ID."),
+  filePath: z.string().describe('The path to the file.'),
+  name: z.string().describe("The file's name.").optional(),
+  type: z
+    .enum(['DEFAULT', 'ROOT'])
+    .describe(
+      'The type of file:\n- `ROOT` — The file containing the full OpenAPI structure. This serves as the entry point for the API spec and references other (`DEFAULT`) spec files. Multi-file specs can only have one root file.\n- `DEFAULT` — A file referenced by the `ROOT` file.\n'
+    )
+    .optional(),
+  content: z.string().describe("The specification's stringified contents.").optional(),
+});
+export const annotations = {
+  title:
+    "Updates an API specification's file.\n\n**Note:**\n\n- This endpoint does not accept an empty request body. You must pass one of the accepted values.\n- This endpoint does not accept multiple request body properties in a single call. For example, you cannot pass both the \\`content\\` and \\`type\\` property at the same time.\n- Multi-file specifications can only have one root file.\n- When updating a file type to \\`ROOT\\`, the previous root file is updated to the \\`DEFAULT\\` file type.\n- Files cannot exceed a maximum of 10 MB in size.\n",
+  readOnlyHint: false,
+  destructiveHint: false,
+  idempotentHint: true,
+};
+
+export async function handler(
+  params: z.infer<typeof parameters>,
+  extra: { apiKey: string; headers?: IsomorphicHeaders }
+): Promise<{ content: Array<{ type: string; text: string } & Record<string, unknown>> }> {
+  try {
+    const endpoint = `/specs/${params.specId}/files/${params.filePath}`;
+    const query = new URLSearchParams();
+    const url = query.toString() ? `${endpoint}?${query.toString()}` : endpoint;
+    const bodyPayload: any = {};
+    if (params.name !== undefined) bodyPayload.name = params.name;
+    if (params.type !== undefined) bodyPayload.type = params.type;
+    if (params.content !== undefined) bodyPayload.content = params.content;
+    const result = await fetchPostmanAPI(url, {
+      method: 'PATCH',
+      body: JSON.stringify(bodyPayload),
+      contentType: ContentType.Json,
+      apiKey: extra.apiKey,
+      headers: extra.headers,
+    });
+    return {
+      content: [
+        {
+          type: 'text',
+          text: `${typeof result === 'string' ? result : JSON.stringify(result, null, 2)}`,
+        },
+      ],
+    };
+  } catch (e: any) {
+    return {
+      content: [{ type: 'text', text: `Failed: ${e.message}` }],
+    };
+  }
+}