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elsa-workflows/elsa-core

Elsa is a workflow engine and AI copilot platform that provides a comprehensive API for managing workflow definitions, instances, and execution states. It supports dynamic workflow alterations, multi-language expression evaluation (C#, Python, JavaScript, Liquid), and real-time monitoring via structured logs and dashboards. The system also includes robust identity management, caching, and a modular feature architecture for extensibility.

62.5

Adequate · 5 August 2026

131k

lines of production code

C#

primary language

1

bus factor · 287 authors in all

2

measurements over time

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How it got here

2018–2023 · Identity, API, and feature system overhaul

This period focused on establishing a robust identity and authentication layer, introducing a modular feature registration system, and expanding the REST API with comprehensive endpoints for users, roles, and workflow management. The team also standardized the build environment, added a new scripting DSL, and introduced workflow alteration capabilities to support runtime modifications.

109 changes

2024–2025 · Multi-tenancy and distributed runtime expansion

This period focused on establishing robust multi-tenancy support, including tenant lifecycle management, HTTP routing, and database isolation. The team also introduced a distributed workflow runtime for clustered deployments, added support for multiple expression languages (C#, JavaScript, Python, Liquid), and expanded the EF Core persistence layer to support various database providers.

56 changes

2026 · Shell architecture and AI integration

This period focused on implementing a modular 'Shell' architecture to decouple and organize core services, including identity, expressions, and persistence. Concurrently, the codebase introduced a new secrets management module and laid the groundwork for an AI Copilot feature, alongside expanding diagnostic and dashboard capabilities.

29 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 5 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit bd903f63dc — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
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