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[PR #2351] [MERGED] fix: tool call add empty assistant messages that not expected #2419

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opened 2026-02-16 11:16:55 -05:00 by yindo · 0 comments
yindo commented 2026-02-16 11:16:55 -05:00
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📋 Pull Request Information

Original PR: https://github.com/langgenius/dify-official-plugins/pull/2351
Author: @leslie2046
Created: 12/30/2025
Status: ✅ Merged
Merged: 12/30/2025
Merged by: @hjlarry

Base: main ← Head: fix/agent-strategy

📝 Commits (1)

  • cd112b1 fix: tool call add empty assistant messages that not expected

📊 Changes

3 files changed (+24 additions, -20 deletions)

View changed files

📝 agent-strategies/cot_agent/manifest.yaml (+1 -1)
📝 agent-strategies/cot_agent/requirements.txt (+1 -1)
📝 agent-strategies/cot_agent/strategies/function_calling.py (+22 -18)

📄 Description

Related Issues or Context

fixes https://github.com/langgenius/dify-official-plugins/issues/2350

Before After
图片 图片

before log:

[on_llm_before_invoke]
Model: deepseek-reasoner
Parameters:
	Tools:
		current_time
		lunar_query
		get_weather
Stream: True
User: 591e49a8-e188-48dd-8548-2dc0ba9f00dc
Prompt messages:
	role: system
	content: 你是一名助手
	role: user
	content: 同时查询下当前时间和北京天气
	role: assistant
	content: <think>
用户想要同时查询两件事：当前时间和北京天气。我需要同时使用current_time和get_weather这两个工具。current_time不需要参数，get_weather需要城市参数，这里应该是"北京"。那么，我就同时调用这两个工具。
</think>
	role: assistant
	content: 
	name: current_time
	role: tool
	content: 2025-12-31 09:21:49
	role: assistant
	content: 
	name: get_weather
	role: tool
	content: tool response: {"error_code": 0, "reason": "查询成功!", "result": {"city": "北京", "future": [{"date": "2025-12-31", "direct": "北风转西南风", "temperature": "-9/0℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-01", "direct": "东北风转北风", "temperature": "-8/1℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}, {"date": "2026-01-02", "direct": "西南风", "temperature": "-8/3℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-03", "direct": "西北风转北风", "temperature": "-4/5℃", "weather": "晴转多云", "wid": {"day": "00", "night": "01"}}, {"date": "2026-01-04", "direct": "西风转���风", "temperature": "-6/5℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}], "realtime": {"aqi": "13", "direct": "北风", "humidity": "26", "info": "晴", "power": "4级", "temperature": "-6", "wid": "00"}}}.

after log：

[on_llm_before_invoke]
Model: deepseek-reasoner
Parameters:
	Tools:
		current_time
		lunar_query
		get_weather
Stream: True
User: bb27860c-6220-4a6b-99c6-a889424c611f
Prompt messages:
	role: system
	content: 你是一名助手
	role: user
	content: 同时查询下当前时间和北京天气
	role: assistant
	content: <think>
用户想同时查询当前时间和北京天气。我需要同时使用current_time和get_weather这两个工具。我会并行调用它们。
</think>
	name: current_time
	role: tool
	content: 2025-12-31 09:30:46
	name: get_weather
	role: tool
	content: tool response: {"error_code": 0, "reason": "查询成功!", "result": {"city": "北京", "future": [{"date": "2025-12-31", "direct": "北风转西南风", "temperature": "-9/0℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-01", "direct": "东北风转北风", "temperature": "-8/1℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}, {"date": "2026-01-02", "direct": "西南风", "temperature": "-8/3℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-03", "direct": "西北风转北风", "temperature": "-4/5℃", "weather": "晴转多云", "wid": {"day": "00", "night": "01"}}, {"date": "2026-01-04", "direct": "西风转北风", "temperature": "-6/5℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}], "realtime": {"aqi": "13", "direct": "东北风", "humidity": "25", "info": "晴", "power": "3级", "temperature": "-6", "wid": "00"}}}.

This PR contains Changes to Non-Plugin

  • Documentation
  • Other

This PR contains Changes to Non-LLM Models Plugin

  • I have Run Comprehensive Tests Relevant to My Changes

This PR contains Changes to LLM Models Plugin

  • My Changes Affect Message Flow Handling (System Messages and User→Assistant Turn-Taking)
  • My Changes Affect Tool Interaction Flow (Multi-Round Usage and Output Handling, for both Agent App and Agent Node)
  • My Changes Affect Multimodal Input Handling (Images, PDFs, Audio, Video, etc.)
  • My Changes Affect Multimodal Output Generation (Images, Audio, Video, etc.)
  • My Changes Affect Structured Output Format (JSON, XML, etc.)
  • My Changes Affect Token Consumption Metrics
  • My Changes Affect Other LLM Functionalities (Reasoning Process, Grounding, Prompt Caching, etc.)
  • Other Changes (Add New Models, Fix Model Parameters etc.)

Version Control (Any Changes to the Plugin Will Require Bumping the Version)

  • I have Bumped Up the Version in Manifest.yaml (Top-Level Version Field, Not in Meta Section)

Dify Plugin SDK Version

  • I have Ensured dify_plugin>=0.3.0,<0.6.0 is in requirements.txt (SDK docs)

Environment Verification (If Any Code Changes)

Local Deployment Environment

  • Dify Version is: , I have Tested My Changes on Local Deployment Dify with a Clean Environment That Matches the Production Configuration.

SaaS Environment

  • I have Tested My Changes on cloud.dify.ai with a Clean Environment That Matches the Production Configuration

🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.

## 📋 Pull Request Information **Original PR:** https://github.com/langgenius/dify-official-plugins/pull/2351 **Author:** [@leslie2046](https://github.com/leslie2046) **Created:** 12/30/2025 **Status:** ✅ Merged **Merged:** 12/30/2025 **Merged by:** [@hjlarry](https://github.com/hjlarry) **Base:** `main` ← **Head:** `fix/agent-strategy` --- ### 📝 Commits (1) - [`cd112b1`](https://github.com/langgenius/dify-official-plugins/commit/cd112b1989b799f7149f2117e9f55310e3b352a1) fix: tool call add empty assistant messages that not expected ### 📊 Changes **3 files changed** (+24 additions, -20 deletions) <details> <summary>View changed files</summary> 📝 `agent-strategies/cot_agent/manifest.yaml` (+1 -1) 📝 `agent-strategies/cot_agent/requirements.txt` (+1 -1) 📝 `agent-strategies/cot_agent/strategies/function_calling.py` (+22 -18) </details> ### 📄 Description ## Related Issues or Context <!-- ⚠️ NOTE: This repository is for Dify Official Plugins only. For community contributions, please submit to https://github.com/langgenius/dify-plugins instead. - Link Related Issues if Applicable: #issue_number - Or Provide Context about Why this Change is Needed --> fixes https://github.com/langgenius/dify-official-plugins/issues/2350 | Before | After | |--------|-------| |<img width="560" height="1204" alt="图片" src="https://github.com/user-attachments/assets/db078967-b14e-4af9-b1ed-107e05055879" />|<img width="461" height="1030" alt="图片" src="https://github.com/user-attachments/assets/3b020d8b-435b-4783-af3e-2d678a94f60e" />| ## before log: ``` [on_llm_before_invoke] Model: deepseek-reasoner Parameters: Tools: current_time lunar_query get_weather Stream: True User: 591e49a8-e188-48dd-8548-2dc0ba9f00dc Prompt messages: role: system content: 你是一名助手 role: user content: 同时查询下当前时间和北京天气 role: assistant content: <think> 用户想要同时查询两件事：当前时间和北京天气。我需要同时使用current_time和get_weather这两个工具。current_time不需要参数，get_weather需要城市参数，这里应该是"北京"。那么，我就同时调用这两个工具。 </think> role: assistant content: name: current_time role: tool content: 2025-12-31 09:21:49 role: assistant content: name: get_weather role: tool content: tool response: {"error_code": 0, "reason": "查询成功!", "result": {"city": "北京", "future": [{"date": "2025-12-31", "direct": "北风转西南风", "temperature": "-9/0℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-01", "direct": "东北风转北风", "temperature": "-8/1℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}, {"date": "2026-01-02", "direct": "西南风", "temperature": "-8/3℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-03", "direct": "西北风转北风", "temperature": "-4/5℃", "weather": "晴转多云", "wid": {"day": "00", "night": "01"}}, {"date": "2026-01-04", "direct": "西风转���风", "temperature": "-6/5℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}], "realtime": {"aqi": "13", "direct": "北风", "humidity": "26", "info": "晴", "power": "4级", "temperature": "-6", "wid": "00"}}}. ``` ## after log： ``` [on_llm_before_invoke] Model: deepseek-reasoner Parameters: Tools: current_time lunar_query get_weather Stream: True User: bb27860c-6220-4a6b-99c6-a889424c611f Prompt messages: role: system content: 你是一名助手 role: user content: 同时查询下当前时间和北京天气 role: assistant content: <think> 用户想同时查询当前时间和北京天气。我需要同时使用current_time和get_weather这两个工具。我会并行调用它们。 </think> name: current_time role: tool content: 2025-12-31 09:30:46 name: get_weather role: tool content: tool response: {"error_code": 0, "reason": "查询成功!", "result": {"city": "北京", "future": [{"date": "2025-12-31", "direct": "北风转西南风", "temperature": "-9/0℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-01", "direct": "东北风转北风", "temperature": "-8/1℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}, {"date": "2026-01-02", "direct": "西南风", "temperature": "-8/3℃", "weather": "晴", "wid": {"day": "00", "night": "00"}}, {"date": "2026-01-03", "direct": "西北风转北风", "temperature": "-4/5℃", "weather": "晴转多云", "wid": {"day": "00", "night": "01"}}, {"date": "2026-01-04", "direct": "西风转北风", "temperature": "-6/5℃", "weather": "多云转晴", "wid": {"day": "01", "night": "00"}}], "realtime": {"aqi": "13", "direct": "东北风", "humidity": "25", "info": "晴", "power": "3级", "temperature": "-6", "wid": "00"}}}. ``` ## This PR contains Changes to *Non-Plugin* <!-- Put an `x` in all the boxes that apply by replacing [ ] with [x] For example: - [x] Documentation --> - [ ] Documentation - [ ] Other ## This PR contains Changes to *Non-LLM Models Plugin* - [x] I have Run Comprehensive Tests Relevant to My Changes <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> ## This PR contains Changes to *LLM Models Plugin* <!-- LLM Models Test Example: --> <!-- https://github.com/langgenius/dify-official-plugins/blob/main/.assets/test-examples/llm-plugin-tests/llm_test_example.md --> - [ ] My Changes Affect Message Flow Handling (System Messages and User→Assistant Turn-Taking) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] My Changes Affect Tool Interaction Flow (Multi-Round Usage and Output Handling, for both Agent App and Agent Node) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] My Changes Affect Multimodal Input Handling (Images, PDFs, Audio, Video, etc.) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] My Changes Affect Multimodal Output Generation (Images, Audio, Video, etc.) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] My Changes Affect Structured Output Format (JSON, XML, etc.) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] My Changes Affect Token Consumption Metrics <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] My Changes Affect Other LLM Functionalities (Reasoning Process, Grounding, Prompt Caching, etc.) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> - [ ] Other Changes (Add New Models, Fix Model Parameters etc.) <!-- 📷 Include Screenshots/Videos Demonstrating the Fix, New Feature, or the Behavior Before/After Breaking Changes. --> ## Version Control (Any Changes to the Plugin Will Require Bumping the Version) - [x] I have Bumped Up the Version in Manifest.yaml (Top-Level `Version` Field, Not in Meta Section) <!-- ⚠️ NOTE: Version Format: MAJOR.MINOR.PATCH - MAJOR (0.x.x): Reserved for Significant architectural changes or incompatible API modifications - MINOR (x.0.x): For New feature additions while maintaining backward compatibility - PATCH (x.x.0): For Backward-compatible bug fixes and minor improvements - Note: Each Version Component (MAJOR, MINOR, PATCH) Can Be 2 Digits, e.g., 10.11.22 --> ## Dify Plugin SDK Version - [x] I have Ensured `dify_plugin>=0.3.0,<0.6.0` is in requirements.txt ([SDK docs](https://github.com/langgenius/dify-plugin-sdks/blob/main/python/README.md)) ## Environment Verification (If Any Code Changes) <!-- ⚠️ NOTE: At Least One Environment Must Be Tested. --> ### Local Deployment Environment - [x] Dify Version is: <!-- Specify Your Version (e.g., 1.2.0) -->, I have Tested My Changes on Local Deployment Dify with a Clean Environment That Matches the Production Configuration. <!-- - Python Virtual Env Matching Manifest.yaml & requirements.txt - No Breaking Changes in Dify That May Affect the Testing Result --> ### SaaS Environment - [ ] I have Tested My Changes on cloud.dify.ai with a Clean Environment That Matches the Production Configuration <!-- - Python Virtual Env Matching Manifest.yaml & requirements.txt --> --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
yindo added the pull-request label 2026-02-16 11:16:55 -05:00
yindo closed this issue 2026-02-16 11:16:55 -05:00
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Reference: langgenius/dify-official-plugins#2419
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