From fa7f45ea9e81fa73fba0afa099e127fbdeaf5281 Mon Sep 17 00:00:00 2001
From: "Ben Houston (via MyCoder)" <neuralsoft@gmail.com>
Date: Thu, 13 Mar 2025 11:24:37 +0000
Subject: [PATCH] feat: support multiple line custom prompts in
 mycoder.config.js

- Updated customPrompt type to accept string or string[] in types.ts and config.ts
- Modified system prompt generation to handle both string and array formats
- Updated examples in mycoder.config.js and README.md to demonstrate the new feature
- Ensures backward compatibility with existing string-based approach

Closes #249
---
 README.md                                   | 7 +++++++
 mycoder.config.js                           | 7 +++++++
 packages/agent/src/core/toolAgent/config.ts | 9 ++++++++-
 packages/agent/src/core/types.ts            | 2 +-
 packages/cli/src/settings/config.ts         | 2 +-
 5 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 8b8a4d9..1073f05 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,14 @@ export default {
   temperature: 0.7,
 
   // Custom settings
+  // customPrompt can be a string or an array of strings for multiple lines
   customPrompt: '',
+  // Example of multiple line custom prompts:
+  // customPrompt: [
+  //   'Custom instruction line 1',
+  //   'Custom instruction line 2',
+  //   'Custom instruction line 3',
+  // ],
   profile: false,
   tokenCache: true,
 
diff --git a/mycoder.config.js b/mycoder.config.js
index ead98ee..cd796b8 100644
--- a/mycoder.config.js
+++ b/mycoder.config.js
@@ -20,7 +20,14 @@ export default {
   temperature: 0.7,
 
   // Custom settings
+  // customPrompt can be a string or an array of strings for multiple lines
   customPrompt: '',
+  // Example of multiple line custom prompts:
+  // customPrompt: [
+  //   'Custom instruction line 1',
+  //   'Custom instruction line 2',
+  //   'Custom instruction line 3',
+  // ],
   profile: false,
   tokenCache: true,
 };
diff --git a/packages/agent/src/core/toolAgent/config.ts b/packages/agent/src/core/toolAgent/config.ts
index fea22e8..4861ed3 100644
--- a/packages/agent/src/core/toolAgent/config.ts
+++ b/packages/agent/src/core/toolAgent/config.ts
@@ -199,6 +199,13 @@ export function getDefaultSystemPrompt(toolContext: ToolContext): string {
     'When you run into issues or unexpected results, take a step back and read the project documentation and configuration files and look at other source files in the project for examples of what works.',
     '',
     'Use sub-agents for parallel tasks, providing them with specific context they need rather than having them rediscover it.',
-    toolContext.customPrompt ? `\n\n${toolContext.customPrompt}` : '',
+    (() => {
+      if (!toolContext.customPrompt) return '';
+      if (typeof toolContext.customPrompt === 'string') {
+        return `\n\n${toolContext.customPrompt}`;
+      }
+      // It's an array of strings
+      return `\n\n${toolContext.customPrompt.join('\n')}`;
+    })(),
   ].join('\n');
 }
diff --git a/packages/agent/src/core/types.ts b/packages/agent/src/core/types.ts
index a1871f0..0ceac3c 100644
--- a/packages/agent/src/core/types.ts
+++ b/packages/agent/src/core/types.ts
@@ -19,7 +19,7 @@ export type ToolContext = {
   pageFilter: pageFilter;
   tokenTracker: TokenTracker;
   githubMode: boolean;
-  customPrompt?: string;
+  customPrompt?: string | string[];
   tokenCache?: boolean;
   userPrompt?: boolean;
   agentId?: string; // Unique identifier for the agent, used for background tool tracking
diff --git a/packages/cli/src/settings/config.ts b/packages/cli/src/settings/config.ts
index 6bbf0ef..80b2e08 100644
--- a/packages/cli/src/settings/config.ts
+++ b/packages/cli/src/settings/config.ts
@@ -13,7 +13,7 @@ export type Config = {
   model: string;
   maxTokens: number;
   temperature: number;
-  customPrompt: string;
+  customPrompt: string | string[];
   profile: boolean;
   tokenCache: boolean;
   userPrompt: boolean;