From 5e3651d540f03b448bd8bba2e6f51f1c4bbc50d9 Mon Sep 17 00:00:00 2001
From: Ryan Kruse <rpkruse1@gmail.com>
Date: Wed, 25 Feb 2026 13:28:36 -0600
Subject: [PATCH] anthropic: handle top-level system param; bump version

Add support for a top-level `system` parameter for the Anthropic provider: include `system?: string` in AnthropicCreateArgs, convert a top-level `system` into a system message when building LLMRequest, and extract a system message back to the top-level `system` when converting a request to args. Filter out system messages from messagesToAnthropicInput and ensure extractParams ignores the `system` field. Also bump package version to 0.1.5-beta in package.json and package-lock.json.
---
 ts-sdk/package-lock.json                 |  4 ++--
 ts-sdk/package.json                      |  2 +-
 ts-sdk/src/providers/anthropic/common.ts | 11 ++++++----
 ts-sdk/src/providers/anthropic/proxy.ts  | 26 ++++++++++++++++++++----
 ts-sdk/src/providers/anthropic/types.ts  |  1 +
 5 files changed, 33 insertions(+), 11 deletions(-)

diff --git a/ts-sdk/package-lock.json b/ts-sdk/package-lock.json
index e8079c9..f4b6bb4 100644
--- a/ts-sdk/package-lock.json
+++ b/ts-sdk/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@memorilabs/axon",
-  "version": "0.1.4-beta",
+  "version": "0.1.5-beta",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@memorilabs/axon",
-      "version": "0.1.4-beta",
+      "version": "0.1.5-beta",
       "license": "Apache-2.0",
       "devDependencies": {
         "@anthropic-ai/sdk": "*",
diff --git a/ts-sdk/package.json b/ts-sdk/package.json
index 30f7b87..42ef9af 100644
--- a/ts-sdk/package.json
+++ b/ts-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@memorilabs/axon",
-  "version": "0.1.4-beta",
+  "version": "0.1.5-beta",
   "description": "TypeScript SDK for Memori's cloud memory service",
   "type": "module",
   "main": "./dist/index.js",
diff --git a/ts-sdk/src/providers/anthropic/common.ts b/ts-sdk/src/providers/anthropic/common.ts
index 394a6f7..560039a 100644
--- a/ts-sdk/src/providers/anthropic/common.ts
+++ b/ts-sdk/src/providers/anthropic/common.ts
@@ -21,10 +21,13 @@ export function anthropicInputToMessages(input: unknown): Message[] {
 }
 
 export function messagesToAnthropicInput(request: LLMRequest): AnthropicMessage[] {
-  return request.messages.map((m) => ({
-    role: m.role,
-    content: m.content,
-  }));
+  // Filter out system messages, they'll be handled separately
+  return request.messages
+    .filter((m) => m.role !== 'system')
+    .map((m) => ({
+      role: m.role,
+      content: m.content,
+    }));
 }
 
 export function contentFromAnthropic(response: unknown): string {
diff --git a/ts-sdk/src/providers/anthropic/proxy.ts b/ts-sdk/src/providers/anthropic/proxy.ts
index e0165dd..92e2ec4 100644
--- a/ts-sdk/src/providers/anthropic/proxy.ts
+++ b/ts-sdk/src/providers/anthropic/proxy.ts
@@ -15,13 +15,20 @@ import { PROVIDERS } from '../../utils/constants.js';
 
 function extractParams(args: AnthropicCreateArgs): Record<string, unknown> {
   // Separate model and messages from extra provider-specific parameters
-  const { model: _model, messages: _messages, ...params } = args;
+  const { model: _model, messages: _messages, system: _system, ...params } = args;
   return params;
 }
 
 function argsToRequest(args: AnthropicCreateArgs): LLMRequest {
+  const messages = anthropicInputToMessages(args.messages);
+
+  // If there's a system parameter at the top level, convert it to a system message
+  if (args.system) {
+    messages.unshift({ role: 'system', content: args.system });
+  }
+
   return {
-    messages: anthropicInputToMessages(args.messages),
+    messages,
     model: args.model,
     params: extractParams(args),
   };
@@ -29,11 +36,22 @@ function argsToRequest(args: AnthropicCreateArgs): LLMRequest {
 
 function requestToArgs(request: LLMRequest): AnthropicCreateArgs {
   if (!request.model) throw new Error('No model provided.');
-  return {
+
+  // Extract system message if present
+  const systemMessage = request.messages.find((m) => m.role === 'system');
+
+  const args: AnthropicCreateArgs = {
     model: request.model,
     messages: messagesToAnthropicInput(request),
     ...(request.params ?? {}),
-  } as AnthropicCreateArgs;
+  };
+
+  // Add system parameter at top level if system message exists
+  if (systemMessage) {
+    args.system = systemMessage.content;
+  }
+
+  return args;
 }
 
 function rawToCanonical(raw: unknown): LLMResponse {
diff --git a/ts-sdk/src/providers/anthropic/types.ts b/ts-sdk/src/providers/anthropic/types.ts
index db6481a..f426d70 100644
--- a/ts-sdk/src/providers/anthropic/types.ts
+++ b/ts-sdk/src/providers/anthropic/types.ts
@@ -1,6 +1,7 @@
 export interface AnthropicCreateArgs {
   model: string;
   messages: AnthropicMessage[];
+  system?: string;
   stream?: boolean;
   max_tokens?: number;
   [key: string]: unknown;