microsoft/RulesEngine

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A fast and reliable .NET Rules Engine with extensive Dynamic expression support

Stars: 4.4k
Forks: 616
Open beginner issues: 0
Indexed issues: 46
Avg merge: 6m
Merged PRs (30d): 2

Dominant language: C#
License: MIT
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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46 open issues indexed

Is there any plan to provide Microsoft-backed digital signatures for RulesEngine DLLs and dependencies? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#747 · Opened Aug 9, 2026
Support for Returning Multiple Values in OutputExpression Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/RulesEngine#702 · Opened Oct 9, 2025
Error Passing Rule Parameters to Workflow for a specific Rule and how to handle versioning for the workflows Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

microsoft/RulesEngine#701 · 1 comment · Opened Oct 7, 2025
Feature: Impact Analysis and Version Diff Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#700 · Opened Oct 1, 2025
Feature: Rule Dependency Graph Visualization Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#699 · Opened Oct 1, 2025
Why not to combine it with `powerfx`? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#691 · Opened Aug 8, 2025
Source Code Generation for Rules Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#685 · Opened Jul 4, 2025
Unable to bind values in rule chaining. Open

microsoft/RulesEngine#679 · 1 comment · 1 reaction · 1 assignee · Opened Jun 26, 2025
get the time difference wrong Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

microsoft/RulesEngine#637 · 1 comment · Opened Dec 26, 2024
Using the output from a rule as input to the expression for other rule Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/RulesEngine#632 · 1 comment · Opened Oct 18, 2024
Action Workflow and global params do not work together Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/RulesEngine#626 · 2 comments · Opened Aug 15, 2024
Mark repository as unmaintained/archive it Open

Difficulty 1/5 Under an hour Newbie friendliness 25/100

microsoft/RulesEngine#625 · 1 comment · Opened Aug 14, 2024
Optional parameters for method calls not supported by expression evaluation Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/RulesEngine#623 · Opened Aug 7, 2024
How do we pass output of one rule as input to next rule? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

microsoft/RulesEngine#602 · 1 comment · Opened May 3, 2024
Support for Any-Operator on List-Types Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#598 · 2 comments · Opened Mar 28, 2024
AOT compatibility, and move to System.Text.Json Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#594 · 5 comments · 6 reactions · Opened Mar 5, 2024
Missing syntax highlighting in wiki getting started Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

microsoft/RulesEngine#593 · Opened Mar 5, 2024
Ef Derived Class concern Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/RulesEngine#588 · 2 comments · Opened Feb 28, 2024
Rule Engine Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#585 · 1 comment · Opened Feb 22, 2024
Custom method is not being called with ExecuteActionWorkflowAsync; throwing parser error. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/RulesEngine#584 · 2 comments · Opened Feb 19, 2024
Unexpected True Result from Expression Evaluation with Default ReSettings Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/RulesEngine#583 · Opened Feb 15, 2024
Compiling rules into JS - is it supported/planned? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#579 · Opened Feb 5, 2024
Utils.GetTypedObject fails to type lists of objects with nullable values Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/RulesEngine#577 · 3 comments · Opened Jan 22, 2024
How to do nested if else Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

microsoft/RulesEngine#574 · 3 comments · 1 reaction · Opened Jan 19, 2024
Pass additionalInputs to EvaluateRule Action Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

microsoft/RulesEngine#573 · 1 comment · Opened Jan 16, 2024
Are there future plans to support multiple success or fail actions? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#569 · 5 comments · Opened Jan 9, 2024
GlobalParams Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#566 · 1 comment · Opened Dec 22, 2023
New Operators: SequentialAnd and SequentialOr Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/RulesEngine#565 · 5 comments · Opened Dec 22, 2023
Is it possible to get the RulesEngine instance in the custom Action? Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/RulesEngine#564 · 1 comment · Opened Dec 12, 2023
.Net8 Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#563 · 3 comments · Opened Dec 11, 2023
How to bypass rule execution and perform action execution? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#550 · 1 comment · Opened Nov 8, 2023
no applicable aggregate method 'include(Child)' exists" Open

needs investigation

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/RulesEngine#542 · 1 comment · 1 reaction · Opened Oct 16, 2023
Can support rule interceptors and dynamically query to populate the context before executing the rule? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#533 · 3 comments · Opened Sep 21, 2023
Wiki page is not up to date with new docs Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/RulesEngine#520 · Opened Aug 23, 2023
Common Language Runtime error Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/RulesEngine#511 · 4 comments · Opened Aug 1, 2023
Subject: Query Regarding RulesEngine: Execution error - "Unable to cast object of type 'System.Linq.Expressions.InstanceMethodCallExpression1' t.o type 'System.Linq.Expressions.ParameterExpression" Open

needs investigation

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/RulesEngine#499 · 8 comments · Opened Jul 11, 2023
Exception during execution in UWP project Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/RulesEngine#487 · Opened Jun 14, 2023
Rule Expressions in Javascript Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#466 · 1 comment · Opened Feb 23, 2023
On first condition met it shouldn't check other conditions Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/RulesEngine#465 · 1 comment · Opened Feb 21, 2023
Rule expressions are case insensitive Open

Difficulty 3/5 1-2 days Newbie friendliness 32/100

microsoft/RulesEngine#437 · 2 comments · Opened Dec 5, 2022
ActionContext is not able to get the actual value assigned from the rules Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

microsoft/RulesEngine#390 · 6 comments · Opened Sep 16, 2022
Why excute actions after all rules are completed Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#358 · 6 comments · Opened May 15, 2022
Data source providers for workflows in RuleEngine Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/RulesEngine#247 · 9 comments · Opened Oct 4, 2021
Access Rule(s) In Other Rules Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/RulesEngine#221 · 7 comments · Opened Aug 25, 2021
Improve Documentation Open

documentation good first issue help wanted

microsoft/RulesEngine#103 · 13 comments · 3 reactions · 1 assignee · Opened Feb 10, 2021
Rules visual editor Open

enhancement help wanted

microsoft/RulesEngine#19 · 9 comments · 4 reactions · 1 assignee · Opened May 18, 2020

microsoft/RulesEngine

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