From a586cb736e58be60d406f44c13c6f58fcdcd8927 Mon Sep 17 00:00:00 2001
From: Sweets Sweetman <sweetmantech@gmail.com>
Date: Wed, 15 Apr 2026 14:36:08 -0500
Subject: [PATCH] docs: tighten research endpoint schemas to match handler
 enforcement
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Align OpenAPI spec with the validation the handlers actually enforce:

Enums (docs were permissive, handlers restrict):
- /research/metrics source: 14-item enum (spotify, tiktok, youtube_*, etc.)
- /research/playlist platform: spotify|applemusic|deezer|amazon|youtube
- /research/playlists platform: same 5-value enum
- /research/track/playlists platform: spotify|applemusic|deezer|amazon
  (no youtube, matching handler); status: current|past
- /research/similar audience|genre|mood|musicality: high|medium|low

Missing query params documented:
- /research/playlists: indie, majorCurator, popularIndie, personalized, chart

Validation constraints:
- /research/charts platform pattern: ^[a-z]+$
- /research/discover country: minLength/maxLength 2
- /research/discover limit: minimum 1, maximum 100
- ResearchExtractRequest.urls: minItems 1

Surfaced by cross-checking routes in recoupable/api#366 against the
openapi spec. No behavior change — docs only.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 api-reference/openapi/research.json | 66 +++++++++++++++++++++++++----
 1 file changed, 58 insertions(+), 8 deletions(-)

diff --git a/api-reference/openapi/research.json b/api-reference/openapi/research.json
index 50f4d12..1b92cff 100644
--- a/api-reference/openapi/research.json
+++ b/api-reference/openapi/research.json
@@ -1047,7 +1047,8 @@
             "required": true,
             "description": "Chart platform: spotify, applemusic, tiktok, youtube, itunes, shazam, etc.",
             "schema": {
-              "type": "string"
+              "type": "string",
+              "pattern": "^[a-z]+$"
             }
           },
           {
@@ -1305,7 +1306,9 @@
             "required": false,
             "description": "ISO country code (e.g., US, BR, GB).",
             "schema": {
-              "type": "string"
+              "type": "string",
+              "minLength": 2,
+              "maxLength": 2
             }
           },
           {
@@ -1348,7 +1351,9 @@
             "required": false,
             "schema": {
               "type": "integer",
-              "default": 20
+              "default": 20,
+              "minimum": 1,
+              "maximum": 100
             }
           }
         ],
@@ -2008,6 +2013,46 @@
               "type": "integer",
               "default": 20
             }
+          },
+          {
+            "name": "indie",
+            "in": "query",
+            "description": "Include indie playlists.",
+            "schema": {
+              "type": "boolean"
+            }
+          },
+          {
+            "name": "majorCurator",
+            "in": "query",
+            "description": "Include major-curator playlists.",
+            "schema": {
+              "type": "boolean"
+            }
+          },
+          {
+            "name": "popularIndie",
+            "in": "query",
+            "description": "Include popular indie playlists.",
+            "schema": {
+              "type": "boolean"
+            }
+          },
+          {
+            "name": "personalized",
+            "in": "query",
+            "description": "Include personalized playlists.",
+            "schema": {
+              "type": "boolean"
+            }
+          },
+          {
+            "name": "chart",
+            "in": "query",
+            "description": "Include chart playlists.",
+            "schema": {
+              "type": "boolean"
+            }
           }
         ],
         "responses": {
@@ -2201,7 +2246,8 @@
                 "high",
                 "medium",
                 "low"
-              ]
+              ],
+              "default": "medium"
             }
           },
           {
@@ -2215,7 +2261,8 @@
                 "high",
                 "medium",
                 "low"
-              ]
+              ],
+              "default": "medium"
             }
           },
           {
@@ -2229,7 +2276,8 @@
                 "high",
                 "medium",
                 "low"
-              ]
+              ],
+              "default": "medium"
             }
           },
           {
@@ -2243,7 +2291,8 @@
                 "high",
                 "medium",
                 "low"
-              ]
+              ],
+              "default": "medium"
             }
           },
           {
@@ -3974,7 +4023,8 @@
               "format": "uri"
             },
             "maxItems": 10,
-            "description": "URLs to extract content from (max 10)."
+            "description": "URLs to extract content from (max 10).",
+            "minItems": 1
           },
           "objective": {
             "type": "string",