Add GPT version with free API support to lower learning barriers

go.mod

@@ -5,6 +5,7 @@ go 1.24.2
 require (
 	github.com/anthropics/anthropic-sdk-go v1.6.2
 	github.com/invopop/jsonschema v0.13.0
+	github.com/sashabaranov/go-openai v1.30.3
 )
 
 require (

go.sum

@@ -13,6 +13,8 @@ github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sashabaranov/go-openai v1.30.3 h1:TEdRP3otRXX2A7vLoU+kI5XpoSo7VUUlM/rEttUqgek=
+github.com/sashabaranov/go-openai v1.30.3/go.mod h1:lj5b/K+zjTSFxVLijLSTDZuP7adOgerWeFyZLUhAKRg=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=

gpt_version/README.md

@@ -0,0 +1,74 @@
+# GPT Version Agents
+
+This directory contains GPT-powered versions of the coding agents, converted from the original Anthropic Claude versions. Each file is a standalone program that provides different tool capabilities.
+
+## Files Overview
+
+- `chat_gpt.go` - Basic chat functionality without tools
+- `read_gpt.go` - Chat with file reading capability
+- `list_files_gpt.go` - Chat with file reading and listing capabilities
+- `bash_tool_gpt.go` - Chat with file operations and bash command execution
+- `code_search_tool_gpt.go` - Chat with file operations, bash, and code search using ripgrep
+- `edit_tool_gpt.go` - Chat with file operations, bash, and file editing capabilities
+
+## Usage
+
+Each program is standalone. To run any of them:
+
+```bash
+# For basic chat
+go run gpt_version/chat_gpt.go
+
+# For file reading agent
+go run gpt_version/read_gpt.go
+
+# For file listing agent
+go run gpt_version/list_files_gpt.go
+
+# For bash command agent
+go run gpt_version/bash_tool_gpt.go
+
+# For code search agent
+go run gpt_version/code_search_tool_gpt.go
+
+# For file editing agent
+go run gpt_version/edit_tool_gpt.go
+```
+
+## Configuration
+
+All programs use the ChatAnywhere proxy service for accessing OpenAI's API. You can:
+
+1. Set the `OPENAI_API_KEY` environment variable with your API key
+2. Or modify the default API key in the source code (line ~32 in each file)
+
+For international users, change the `BaseURL` from `https://api.chatanywhere.tech/v1` to `https://api.chatanywhere.org/v1`.
+
+## Features
+
+### Tools Available
+
+- **read_file**: Read contents of files
+- **list_files**: List files and directories 
+- **bash**: Execute bash commands
+- **code_search**: Search code using ripgrep (rg)
+- **edit_file**: Edit files by replacing text
+
+### Verbose Mode
+
+All programs support verbose logging:
+
+```bash
+go run gpt_version/edit_tool_gpt.go -verbose
+```
+
+## Dependencies
+
+- `github.com/sashabaranov/go-openai` - OpenAI Go SDK
+- Standard Go libraries
+
+## Notes
+
+- These are standalone programs, not meant to be compiled together
+- The linter warnings about redeclared identifiers are expected since each file defines the same types independently
+- Each program provides a progressively more feature-rich agent, choose based on your needs