Commit Graph

4 Commits

Author SHA1 Message Date
Icyoung
f601e62e90 Merge pull request #437 from zhouyongyou/fix/margin-calculation
fix(margin): correct position sizing formula to prevent insufficient margin errors
2025-11-05 16:13:37 +08:00
ZhouYongyou
0fddd2731d fix(prompts): rename actions to match backend implementation
## Problem

Backend code expects these action names:
- `open_long`, `open_short`, `close_long`, `close_short`

But prompts use outdated names:
- `buy_to_enter`, `sell_to_enter`, `close`

This causes all trading decisions to fail with unknown action errors.

## Solution

Minimal changes to fix action name compatibility:

### prompts/nof1.txt
-  `buy_to_enter` → `open_long`
-  `sell_to_enter` → `open_short`
-  `close` → `close_long` / `close_short`
-  Explicitly list `wait` action
- +18 lines, -6 lines (only action definitions section)

### prompts/adaptive.txt
-  `buy_to_enter` → `open_long`
-  `sell_to_enter` → `open_short`
-  `close` → `close_long` / `close_short`
- +15 lines, -6 lines (only action definitions section)

## Impact

-  Trading decisions now execute successfully
-  Maintains all existing functionality
-  No new features added (minimal diff)

## Verification

```bash
# Backend expects these actions:
grep 'Action string' decision/engine.go
# "open_long", "open_short", "close_long", "close_short", ...

# Old names removed:
grep -r "buy_to_enter\|sell_to_enter" prompts/
# (no results)
```

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-04 19:41:23 +08:00
ZhouYongyou
45beb6b15a fix(margin): correct position sizing formula to prevent insufficient margin errors
## Problem
AI was calculating position_size_usd incorrectly, treating it as margin requirement instead of notional value, causing code=-2019 errors (insufficient margin).

## Solution

### 1. Updated AI prompts with correct formula
- **prompts/adaptive.txt**: Added clear position sizing calculation steps
- **prompts/nof1.txt**: Added English version with example
- **prompts/default.txt**: Added Chinese version with example

**Correct formula:**
1. Available Margin = Available Cash × 0.95 × Allocation % (reserve 5% for fees)
2. Notional Value = Available Margin × Leverage
3. position_size_usd = Notional Value (this is the value for JSON)

**Example:** $500 cash, 5x leverage → position_size_usd = $2,375 (not $500)

### 2. Added code-level validation
- **trader/auto_trader.go**: Added margin checks in executeOpenLong/ShortWithRecord
- Validates required margin + fees ≤ available balance before opening position
- Returns clear error message if insufficient

## Impact
- Prevents code=-2019 errors
- AI now understands the difference between notional value and margin requirement
- Double validation: AI prompt + code check

## Testing
-  Compiles successfully
- ⚠️ Requires live trading environment testing
2025-11-04 18:44:07 +08:00
SkywalkerJi
4250c11ddf Supports custom system prompts and custom models. 2025-11-01 19:45:54 +08:00