From 236863acd4d10983986cd3830c2ea92c85e420de Mon Sep 17 00:00:00 2001
From: yushen <ldnvnbl@gmail.com>
Date: Fri, 30 Jan 2026 13:15:11 +0800
Subject: [PATCH] feat(agent): support AGENT_PROVIDER and AGENT_MODEL env vars

Add environment variable support for provider/model defaults:
- AGENT_PROVIDER: default LLM provider (fallback: kimi-coding)
- AGENT_MODEL: default model name
- Auto-load .env via tsx --env-file in agent:cli script

Priority: CLI args > env vars > session meta > defaults.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 package.json        |  2 +-
 src/agent/runner.ts | 13 ++++++-------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/package.json b/package.json
index dd93b110..39a420b0 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "main": "dist/index.js",
   "scripts": {
     "dev": "tsx src/index.ts",
-    "agent:cli": "tsx src/agent/cli.ts",
+    "agent:cli": "tsx --env-file=.env src/agent/cli.ts",
     "agent:interactive": "tsx src/agent/interactive-cli.ts",
     "agent:profile": "tsx src/agent/profile-cli.ts",
     "dev:gateway": "tsx --watch src/gateway/main.ts",
diff --git a/src/agent/runner.ts b/src/agent/runner.ts
index 8c0d7413..61be8343 100644
--- a/src/agent/runner.ts
+++ b/src/agent/runner.ts
@@ -90,8 +90,9 @@ export class Agent {
     this.output = createAgentOutput({ stdout, stderr });
     this.debug = options.debug ?? false;
 
-    // Resolve provider for API key and base URL
-    const resolvedProvider = options.provider ?? "kimi-coding";
+    // Resolve provider and model from options > env vars > defaults
+    const resolvedProvider = options.provider ?? process.env.AGENT_PROVIDER ?? "kimi-coding";
+    const resolvedModel = options.model ?? process.env.AGENT_MODEL;
     const apiKey = resolveApiKey(resolvedProvider, options.apiKey);
 
     this.agent = new PiAgentCore(
@@ -142,11 +143,9 @@ export class Agent {
       return tempSession.getMeta();
     })();
 
-    let model = options.provider && options.model ? resolveModel(options) : resolveModel({
-      ...options,
-      provider: storedMeta?.provider,
-      model: storedMeta?.model,
-    });
+    const effectiveProvider = resolvedModel ? resolvedProvider : (options.provider ?? storedMeta?.provider);
+    const effectiveModel = resolvedModel ?? options.model ?? storedMeta?.model;
+    let model = resolveModel({ ...options, provider: effectiveProvider, model: effectiveModel });
 
     // Override base URL if provided via options or environment variable
     const baseUrl = resolveBaseUrl(model.provider, options.baseUrl);