# Maple AI Tool Calling Bug Report

## Issue
Maple AI models don't use OpenAI-style tool calling format. All tested models return empty responses or text instead of making tool calls.

## Reproduction
See `maple-tool-calling-bug-repro.ts` for a minimal, self-contained reproduction.

**Test model:** `gpt-oss-120b` (chosen because it DOES support tool calling on Cerebras)

**Expected behavior:**
```json
{
  "role": "assistant",
  "tool_calls": [{
    "type": "function",
    "function": {
      "name": "write",
      "arguments": "{\"path\":\"/tmp/maple-test.txt\",\"content\":\"Hello World from Maple!\"}"
    }
  }]
}
```

**Actual behavior:**
- Empty response (0 text chunks)
- `hasText = true` but `textContent.length = 0`
- No tool calls generated

## Models Tested (All Fail)
1. ❌ `mistral-small-3-1-24b` - Refuses tools ("I don't have the capability...")
2. ❌ `qwen2-5-72b` - Outputs tool syntax as text
3. ❌ `llama-3.3-70b` - Outputs tool syntax as text  
4. ❌ `deepseek-r1-0528` - Uses custom format with special tokens
5. ❌ `gpt-oss-120b` - Returns empty response (this reproduction)
6. ❌ `deepseek-v31-terminus` - 400 Bad Request
7. ❌ `leon-se/gemma-3-27b-it-fp8-dynamic` - 500 Internal Server Error

## Why This Matters
The **same base models work fine** through other providers:

| Model | Cerebras API | Maple API |
|-------|--------------|-----------|
| gpt-oss-120b | ✅ `tool_call: true` | ❌ Empty response |
| qwen3-coder-480b | ✅ `tool_call: true` | ❌ Not offered |
| qwen2.5-72b | ✅ Available with tools | ❌ Returns text |

Source: https://models.dev/api.json (database of 186 models with tool calling)

## Root Cause Analysis
See `WHY_OPENCODE_WORKS_MAPLE_DOESNT.md` for full analysis.

**TL;DR:**
- OpenCode Zen uses models from providers (Cerebras, xAI, Alibaba) with `tool_call: true`
- Maple serves models through encrypted enclaves but tool calling isn't configured
- This isn't a model capability issue - it's an API configuration issue

## Environment
- Runtime: Bun 1.2.23
- AI SDK: `ai` v4.x
- Provider: `@ai-sdk/openai-compatible`
- Maple SDK: Custom encrypted fetch (from opensecret-client)

## Request
Please enable OpenAI-style tool calling for Maple models. The encryption/privacy features are great, but without tool calling, the models can't be used for agentic workflows.

## Contact
Justin Moon ([@justinmoon](https://github.com/justinmoon))
Project: yeet - minimal coding agent (https://github.com/justinmoon/yeet)