Cadence Workflow Engine
Uber's open-source distributed workflow engine for orchestrating long-running, fault-tolerant business processes using code-defined workflows with durable execution guarantees.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security posture depends heavily on deployment configuration; no built-in RBAC; relies on network-level isolation in most deployments; dependency hygiene is a concern given maintenance-mode status
⚡ Reliability
Best When
You have an existing Cadence deployment or specific organizational constraints preventing migration to Temporal, and need durable execution of multi-step agent workflows.
Avoid When
Starting a new project — Temporal is the direct successor with better SDK support, active development, and a managed cloud offering.
Use Cases
- • Orchestrating multi-step agent pipelines where individual steps may take minutes to hours to complete
- • Implementing saga patterns for distributed transactions across multiple services with automatic compensation
- • Running scheduled recurring tasks with guaranteed execution and built-in retry logic
- • Coordinating fan-out/fan-in workflows where an agent spawns parallel child workflows and aggregates results
- • Managing stateful long-running agent sessions that survive process restarts and infrastructure failures
Not For
- • New projects where Temporal (the actively maintained successor) is a better choice with larger community support
- • Simple cron-style job scheduling without complex workflow logic or dependency chains
- • Teams without operational capacity to run and maintain Cassandra and Kafka infrastructure
Interface
Authentication
Self-hosted; auth depends on deployment configuration — TLS mutual auth supported, often deployed on trusted internal network with no auth
Pricing
Fully open-source (MIT license); operational cost is the Cassandra + Kafka infrastructure required to run it
Agent Metadata
Known Gotchas
- ⚠ Non-determinism errors are silent and catastrophic — any code change to workflow logic that alters execution order will corrupt replaying workflow history
- ⚠ Go and Java SDKs have diverged in API surface area; code examples in docs may not match your target SDK version
- ⚠ Cassandra dependency adds significant operational overhead — cluster sizing and tuning require expertise or workflows will fall behind under load
- ⚠ No official Python or TypeScript SDK; agents written in those languages must use gRPC directly or a community wrapper with limited support
- ⚠ Project is in maintenance mode — critical bugs may go unpatched; migration to Temporal is the recommended long-term path
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Cadence Workflow Engine.
Scores are editorial opinions as of 2026-03-06.