model registry sync via models.dev

1 files changed, 33 insertions, 2 deletions

diff --git a/src/config_file.zig b/src/config_file.zig
index 8f6725c..a70a832 100644
--- a/src/config_file.zig
+++ b/src/config_file.zig
@@ -35,8 +35,10 @@
 //!     currently resolved. An `anthropic_messages` provider may also set
 //!     `prompt_cache = <bool>` (default true) to control the advancing
 //!     `cache_control` breakpoint; it is ignored for `openai_chat`
-//!     providers. `extra_headers` (a table of string headers) rides on the
-//!     model request.
+//!     providers. `model_catalog_name = <string>` optionally maps the
+//!     provider to an external model catalog key (sync tooling otherwise
+//!     falls back to the provider name). `extra_headers` (a table of string
+//!     headers) rides on the model request.
 //!   - `defaults.model` is parsed as `<provider_name>:<model_alias>`.
 //!   - `tools` / `extensions` allow- and deny-lists are captured verbatim
 //!     (as glob pattern lists). A pattern appearing in both allow and deny
@@ -84,6 +86,9 @@ pub const Provider = struct {
     base_url: []const u8,
     /// The `auth.<name>` session this provider draws its credential from.
     auth_name: []const u8,
+    /// Optional external model-catalog provider key (e.g. `github-copilot`
+    /// on models.dev). Absent => sync tooling falls back to `name`.
+    model_catalog_name: ?[]const u8 = null,
     /// anthropic_messages only. Place one advancing `cache_control`
     /// breakpoint on each request. Defaults to the library default (true);
     /// ignored for `openai_chat` providers.
@@ -97,6 +102,7 @@ pub const Provider = struct {
         if (self.dialect) |d| alloc.free(d);
         alloc.free(self.base_url);
         alloc.free(self.auth_name);
+        if (self.model_catalog_name) |m| alloc.free(m);
         // `extra_headers` lives in the Config auth arena; not freed here.
     }
 };
@@ -708,6 +714,8 @@ fn resolveProvider(
     const auth_name = (val.get("auth") orelse return error.MissingProviderAuth).asString() orelse
         return error.MissingProviderAuth;
 
+    const model_catalog_name = tomlStr(val, "model_catalog_name");
+
     // anthropic_messages only; absent => library default (true).
     const prompt_cache: bool = blk: {
         if (val.get("prompt_cache")) |pc| {
@@ -724,6 +732,7 @@ fn resolveProvider(
         .dialect = if (dialect) |d| try allocator.dupe(u8, d) else null,
         .base_url = try allocator.dupe(u8, base_url),
         .auth_name = try allocator.dupe(u8, auth_name),
+        .model_catalog_name = if (model_catalog_name) |m| try allocator.dupe(u8, m) else null,
         .prompt_cache = prompt_cache,
         .extra_headers = extra_headers,
     };
@@ -1254,6 +1263,28 @@ test "resolve: provider extra_headers flow into the built provider config" {
     try testing.expectEqualStrings("tok", pc.openai_chat.api_key);
 }
 
+test "resolve: provider model_catalog_name is captured" {
+    const a = testing.allocator;
+    var env = emptyEnv(a);
+    defer env.deinit();
+    const src =
+        \\[providers.copilot]
+        \\style = "openai_chat"
+        \\base_url = "https://api.individual.githubcopilot.com"
+        \\auth = "k"
+        \\model_catalog_name = "github-copilot"
+        \\
+        \\[auth.k]
+        \\key = "tok"
+    ;
+    const doc = try parseDoc(a, src);
+    defer doc.deinit();
+    var cfg = try resolve(a, &env, doc.root);
+    defer cfg.deinit();
+
+    try testing.expectEqualStrings("github-copilot", cfg.provider("copilot").?.model_catalog_name.?);
+}
+
 test "resolve: openai_responses codex dialect maps to internal API style" {
     const a = testing.allocator;
     var env = emptyEnv(a);