[PR #17898] [CLOSED] FEAT: Support sequential tool chaining in Default Function Calling Mode. #63450

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GiteaMirror · 2026-05-06T08:13:31-05:00

GiteaMirror commented

2026-05-06 08:13:31 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/17898
Author: @rgaricano
Created: 9/29/2025
Status: ❌ Closed

Base: dev ← Head: dev-MultiTool_Default_Function_Calling

📝 Commits (7)

b4f438f FEAT: Support sequential tool chaining in Default Function Calling Mode.
ebb7612 Update env.py - Support sequential tool chaining in Default Function Calling Mode.
147644d Update config.py - Support sequential tool chaining in Default Function Calling Mode.
20d44b1 Update middleware.py - Format
03c7e5b Update env.py - Fixed Format
d0c7751 Update middleware.py - Fix Format
5e2c205 Update middleware.py - Fix Format

📊 Changes

3 files changed (+239 additions, -199 deletions)

View changed files

📝 backend/open_webui/config.py (+21 -22)
📝 backend/open_webui/env.py (+8 -0)
📝 backend/open_webui/utils/middleware.py (+210 -177)

📄 Description

FEAT: Support Sequential Tool chaining in Default Function Calling Mode.

Modificated middleware for support sequential tool calls.
Added a retry counter for default mode tool calls.
Implemented a loop that continues processing until no more tool calls are needed.
Allow the LLM to make additional tool calls based on previous results.
Added env var CHAT_RESPONSE_MAX_TOOL_CALL_RETRIES (default=5) to set the max number of iterations of tool calls, to prevent infinite or too long loop.
Modified Tools Prompt for instruction the LLM on how to use sequential tools..
Recommended add the new prompt in adminSettings/Interface/Tools Function Calling Prompt for update this default prompt in database.

Tested:

Contributor License Agreement

By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.

_{🔄 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/open-webui/open-webui/pull/17898 **Author:** [@rgaricano](https://github.com/rgaricano) **Created:** 9/29/2025 **Status:** ❌ Closed **Base:** `dev` ← **Head:** `dev-MultiTool_Default_Function_Calling` --- ### 📝 Commits (7) - [`b4f438f`](https://github.com/open-webui/open-webui/commit/b4f438fd0ad13abbada5bed302f6ca3da8e525ab) FEAT: Support sequential tool chaining in Default Function Calling Mode. - [`ebb7612`](https://github.com/open-webui/open-webui/commit/ebb7612eac18fb769d2ef598d6a860969abe73bb) Update env.py - Support sequential tool chaining in Default Function Calling Mode. - [`147644d`](https://github.com/open-webui/open-webui/commit/147644d378688198cf2499d4a9b341515fa97c56) Update config.py - Support sequential tool chaining in Default Function Calling Mode. - [`20d44b1`](https://github.com/open-webui/open-webui/commit/20d44b1c6441eafe0a83df36af119af7565fd8d1) Update middleware.py - Format - [`03c7e5b`](https://github.com/open-webui/open-webui/commit/03c7e5b86c6e8b57c9037dd7f5ab4b9e57f66eae) Update env.py - Fixed Format - [`d0c7751`](https://github.com/open-webui/open-webui/commit/d0c775183c378dc42cef05b29d1d91d319ba0e1b) Update middleware.py - Fix Format - [`5e2c205`](https://github.com/open-webui/open-webui/commit/5e2c205150eabe9f5cd91f7d63d44840f9cd758d) Update middleware.py - Fix Format ### 📊 Changes **3 files changed** (+239 additions, -199 deletions) <details> <summary>View changed files</summary> 📝 `backend/open_webui/config.py` (+21 -22) 📝 `backend/open_webui/env.py` (+8 -0) 📝 `backend/open_webui/utils/middleware.py` (+210 -177) </details> ### 📄 Description ### FEAT: Support Sequential Tool chaining in Default Function Calling Mode. - Modificated middleware for support sequential tool calls. - Added a retry counter for default mode tool calls. - Implemented a loop that continues processing until no more tool calls are needed. - Allow the LLM to make additional tool calls based on previous results. - Added env var CHAT_RESPONSE_MAX_TOOL_CALL_RETRIES (default=5) to set the max number of iterations of tool calls, to prevent infinite or too long loop. - Modified Tools Prompt for instruction the LLM on how to use sequential tools.. Recommended add the new prompt in adminSettings/Interface/Tools Function Calling Prompt for update this default prompt in database. Tested: ![openwebui_openstreetmap0](https://github.com/user-attachments/assets/81116266-20e9-4938-8cb7-3dfe4699a1e3) ____ ### Contributor License Agreement By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-05-06 08:13:31 -05:00

GiteaMirror closed this issue

2026-05-06 08:13:33 -05:00

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Reference: github-starred/open-webui#63450