From 3a0e0c0c8103041d3a0fffb927c267d6803db6c9 Mon Sep 17 00:00:00 2001
From: jay23606 <4602056+jay23606@users.noreply.github.com>
Date: Sun, 25 Oct 2026 18:25:16 -0400
Subject: [PATCH] fix(metaculus): add missing GetPosts query parameters

---
 core/specs/metaculus/Metaculus.yaml           | 22 ++++++++++++++-
 core/src/exchanges/metaculus/api.ts           | 28 +++++++++++++++++++
 .../metaculus-get-posts-params.test.ts        | 27 ++++++++++++++++++
 3 files changed, 76 insertions(+), 1 deletion(-)
 create mode 100644 core/test/exchanges/metaculus-get-posts-params.test.ts

diff --git a/core/specs/metaculus/Metaculus.yaml b/core/specs/metaculus/Metaculus.yaml
index a0eb3738..bb4e360a 100644
--- a/core/specs/metaculus/Metaculus.yaml
+++ b/core/specs/metaculus/Metaculus.yaml
@@ -1030,6 +1030,26 @@ paths:
       tags:
         - Feed
       parameters:
+        - in: query
+          name: acting_user
+          schema:
+            type: integer
+          description: Filters posts by acting or proxy user ID.
+        - in: query
+          name: categories
+          schema:
+            type: string
+          description: Comma-separated category slugs to filter posts.
+        - in: query
+          name: include_cp_history
+          schema:
+            type: boolean
+          description: Includes community prediction history in the response.
+        - in: query
+          name: include_descriptions
+          schema:
+            type: boolean
+          description: Includes full question descriptions in the response.
         - in: query
           name: tournaments
           schema:
@@ -2067,4 +2087,4 @@ paths:
                     items:
                       $ref: '#/components/schemas/Comment'
         '400':
-          description: Invalid request format
\ No newline at end of file
+          description: Invalid request format
diff --git a/core/src/exchanges/metaculus/api.ts b/core/src/exchanges/metaculus/api.ts
index 0d32f8dc..d9e59ffd 100644
--- a/core/src/exchanges/metaculus/api.ts
+++ b/core/src/exchanges/metaculus/api.ts
@@ -52,6 +52,34 @@ export const metaculusApiSpec = {
                     "Feed"
                 ],
                 "parameters": [
+                    {
+                        "in": "query",
+                        "name": "acting_user",
+                        "schema": {
+                            "type": "integer"
+                        }
+                    },
+                    {
+                        "in": "query",
+                        "name": "categories",
+                        "schema": {
+                            "type": "string"
+                        }
+                    },
+                    {
+                        "in": "query",
+                        "name": "include_cp_history",
+                        "schema": {
+                            "type": "boolean"
+                        }
+                    },
+                    {
+                        "in": "query",
+                        "name": "include_descriptions",
+                        "schema": {
+                            "type": "boolean"
+                        }
+                    },
                     {
                         "in": "query",
                         "name": "tournaments",
diff --git a/core/test/exchanges/metaculus-get-posts-params.test.ts b/core/test/exchanges/metaculus-get-posts-params.test.ts
new file mode 100644
index 00000000..cd08ba4a
--- /dev/null
+++ b/core/test/exchanges/metaculus-get-posts-params.test.ts
@@ -0,0 +1,27 @@
+import { readFileSync } from 'fs';
+import { safeLoad } from 'js-yaml';
+import { metaculusApiSpec } from '../../src/exchanges/metaculus/api';
+
+const expectedParameters = [
+    { name: 'acting_user', schema: { type: 'integer' } },
+    { name: 'categories', schema: { type: 'string' } },
+    { name: 'include_cp_history', schema: { type: 'boolean' } },
+    { name: 'include_descriptions', schema: { type: 'boolean' } },
+];
+
+function expectParameters(spec: any) {
+    const parameters = spec.paths['/posts/'].get.parameters;
+    for (const expected of expectedParameters) {
+        expect(parameters).toEqual(expect.arrayContaining([expect.objectContaining(expected)]));
+    }
+}
+
+describe('Metaculus GetPosts query parameters', () => {
+    test('keeps the YAML source and generated API definition in sync', () => {
+        const yaml = readFileSync(`${__dirname}/../../specs/metaculus/Metaculus.yaml`, 'utf8');
+        const sourceSpec = safeLoad(yaml);
+
+        expectParameters(sourceSpec);
+        expectParameters(metaculusApiSpec);
+    });
+});