AgentIndex icon
AgentIndex
cruxible logo
cruxible
★ 17
vs
marvis logo
marvis
★ 14

cruxible vs marvis

cruxible: Cruxible is a governed state engine designed for AI agents, transforming YAML ontologies into typed knowledge graphs with enforced write rules. It provides a robust, auditable system for managing an agent's 'hard state', ensuring data integrity and consistency without relying on LLM internal reasoning.; marvis: Marvis is a self-hosted 'Company Brain' that captures and structures AI agents' work into a cross-project Knowledge Graph, enabling them to manage projects and coordinate tasks effectively. It helps agents stop forgetting, keeps work on track, and provides a tamper-evident audit log, learning from their activities over time.

01

TL;DR

cruxible logo
cruxibleMemory & Context · ★ 17

AI Agent Operational Management: Managing and tracking AI agent work items, review requests, decisions, and dependencies.

Read cruxible full review →
marvis logo
marvisMulti-Agent · ★ 14

AI agents managing and coordinating development projects.

Read marvis full review →
02

Side-by-Side Comparison

Field
cruxible logocruxible
marvis logomarvis
Category
Memory & Context
Multi-Agent
Stars
★ 17
★ 14
License
Apache-2.0
NOASSERTION
Install Command
pip install cruxible
pip install marvisx-cli && marvis init
Updated
1d ago
1mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
AI Agents, Knowledge Graph, Data Governance
AI Agents, Knowledge Graph, Project Management
03

Features

cruxible logocruxible
01Enforced Write Rules & Governance: Ensures data integrity and consistency for AI agents through configurable write policies, review groups, and attribute-based access control.
02Typed Knowledge Graph from YAML Ontology: Defines entity types, relationships, and queries using a versioned YAML ontology, which can be drafted by agents and refined by humans.
03Deterministic & Receipted Queries: Provides reliable, auditable query answers with receipts, ensuring every agent gets the same answer for the same state.
04Local & Portable State Management: Operates as a Python daemon with CLI/MCP server, storing state in a portable SQLite file, enabling isolated deployment and ownership.
05Integration with External Actions (Gates): Allows external actions (like git pushes) to be gated, meaning they are refused until the governed state agrees.
marvis logomarvis
01Agent memory persistence through captured work artifacts.
02Cross-project Knowledge Graph for linking decisions, code, and documents.
03Constitution-enforced safety rules and an immutable audit log.
04Agent-native Management and Control Plane (MCP) surface for seamless integration.
04

Use Cases

cruxible logocruxible
↳AI Agent Operational Management: Managing and tracking AI agent work items, review requests, decisions, and dependencies.
↳Supply Chain Incident Impact Analysis: Modeling suppliers, components, and products to determine the blast radius of incidents.
↳Vulnerability Triage & Remediation: Governing the process of triaging known-exploited vulnerabilities, assessing asset exposure, and tracking remediation efforts.
↳Project and Release State Governance: Overseeing roadmap items, milestones, agent system versions, and release processes.
↳Evidence-Gated Knowledge Curation: Replacing unstructured RAG/markdown with structured, evidence-verified claims and relationships for critical domain knowledge.
marvis logomarvis
↳AI agents managing and coordinating development projects.
↳Establishing a persistent memory and learning system for agents' activities.
↳Ensuring project alignment and detecting deviation from intent.
↳Providing a governed and auditable environment for agent operations.
FAQ

FAQ

What is the difference between cruxible and marvis?
Both cruxible and marvis are in the Memory & Context category. cruxible has 17 stars, while marvis has 14 stars.
Which is better, cruxible or marvis?
The best choice depends on your use case. Choose cruxible if AI Agent Operational Management: Managing and tracking AI agent work items, review requests, decisions, and dependencies., and marvis if AI agents managing and coordinating development projects..
Is cruxible free or open source?
Yes, cruxible is open source on GitHub (Apache-2.0).
Is marvis free or open source?
Yes, marvis is open source on GitHub (NOASSERTION).
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