models.dev list validation against actual provider's /models

1 files changed, 8 insertions, 7 deletions

diff --git a/libpanto/src/provider_anthropic_messages.zig b/libpanto/src/provider_anthropic_messages.zig
index 5721e4a..258ddbd 100644
--- a/libpanto/src/provider_anthropic_messages.zig
+++ b/libpanto/src/provider_anthropic_messages.zig
@@ -5,10 +5,10 @@
 //!
 //! Responsibilities:
 //!   - Convert `Conversation` → request JSON (delegated to anthropic_messages_json.zig)
-//!   - POST to `{base_url}/messages` with `stream: true`
-//!     (caller is responsible for the `/v1` version segment; panto will
-//!     introduce a new `anthropic_messages_v2` API style for v2 rather than
-//!     pulling the version into the provider)
+//!   - POST to `{base_url}/v1/messages` with `stream: true`
+//!     (the provider owns the current `/v1` suffix; a future wire revision
+//!     would add a new `anthropic_messages_v2` API style rather than guessing
+//!     from the configured base URL)
 //!   - Read the chunked body, feed bytes through SSEParser
 //!   - Parse each event payload, drive a thin assembly loop, and emit Receiver
 //!     callbacks. Anthropic gives us explicit block boundaries, so no
@@ -72,10 +72,11 @@ pub const AnthropicMessagesRequest = struct {
             rr.state.deinit();
         }
 
+        const trimmed_base = std.mem.trim(u8, self.config.base_url, "/");
         const url = try std.fmt.allocPrint(
             self.allocator,
-            "{s}/messages",
-            .{self.config.base_url},
+            "{s}/v1/messages",
+            .{trimmed_base},
         );
         defer self.allocator.free(url);
 
@@ -1270,7 +1271,7 @@ test "oauth-backed anthropic auth uses bearer auth" {
 test "plain anthropic auth uses x-api-key" {
     const cfg: config_mod.AnthropicMessagesConfig = .{
         .api_key = "k",
-        .base_url = "https://api.anthropic.com/v1",
+        .base_url = "https://api.anthropic.com",
         .model = "claude-sonnet-4-5",
     };
     try testing.expect(!headerSliceUsesBearerAuth(&cfg));