fix: update credit system logic (#894)

Merged PR #894 - Updated credit system logic in core credit module

Author: hyacinthus

CHANGELOG.md

@@ -1,3 +1,16 @@
+## v0.8.18
+
+### Features
+- Updated OpenAI image generation skills configuration
+- Enhanced image generation capabilities
+
+### Changes
+- Updated `intentkit/skills/openai/gpt_avatar_generator.py`
+- Updated `intentkit/skills/openai/gpt_image_mini_generator.py`
+- Added changelog documentation
+
+**Full Changelog**: https://github.com/crestalnetwork/intentkit/compare/v0.8.17...v0.8.18
+
 ## v0.8.17
 
 ### Features

intentkit/core/credit.py

@@ -1285,16 +1285,16 @@ async def skill_cost(
     skill = await Skill.get(skill_name)
     if not skill:
         raise ValueError(f"The price of {skill_name} not set yet")
-    agent_skill_config = agent.skills.get(skill.category)
-    if (
-        agent_skill_config
-        and agent_skill_config.get("api_key_provider") == "agent_owner"
-    ):
-        base_skill_amount = skill.price_self_key.quantize(
-            FOURPLACES, rounding=ROUND_HALF_UP
-        )
-    else:
-        base_skill_amount = skill.price.quantize(FOURPLACES, rounding=ROUND_HALF_UP)
+    base_skill_amount = skill.price.quantize(FOURPLACES, rounding=ROUND_HALF_UP)
+    if agent.skills:
+        agent_skill_config = agent.skills.get(skill.category)
+        if (
+            agent_skill_config
+            and agent_skill_config.get("api_key_provider") == "agent_owner"
+        ):
+            base_skill_amount = skill.price_self_key.quantize(
+                FOURPLACES, rounding=ROUND_HALF_UP
+            )
     # Get payment settings
     payment_settings = await AppSetting.payment()