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Refactron™ vs Celest

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Refactron™ compared with Celest
DetailRefactron™ logo Refactron™Celest logo Celest
What it doesThe verification layer for AI code change One place to understand and operate AI agents across Microsoft
StageMVP Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Free
PricingFree plan: $0/mo with 500 verifications/mo and unlimited local CLI runs. Pro: $59/mo with 10,000 verifications/mo (early access). Scale: $300/mo with 100,000 verifications/mo (early access). Enterprise: Custom pricing (early access). Not given
Key features
  • Verify arbitrary diffs from agents, codemods, or humans
  • Three-verdict system: SAFE, UNSAFE, UNPROVEN
  • Runs test suite on isolated shadow tree copy
  • Changed-line coverage attestation for Python
  • Reproducible verification report with audit-grade record
  • MCP server for AI agents to verify before landing
  • CI gate that blocks unsafe merges
  • Syntax and imports validation gates
  • Runs locally with no code upload to external service
  • Agent Estate Review: read-only review connecting fragmented agent ownership, capability, usage, cost, and risk records
  • Helpdesk Triage: AI ticket triage for SharePoint service desks with operator approval
  • Agent Workbench: open, refine, and export Microsoft 365 Copilot agent packages
  • 30/60/90-day operating plan generation
  • Source-backed inventory with identity, ownership and authority tracking
  • Review trails for accountability
What makes it different
  • Only system that proves changed lines are actually tested, not just that tests pass
  • Works with any AI coding agent and integrates via MCP
  • Code never leaves your machine; runs entirely locally
  • Free local CLI with unlimited verifications, paid only for managed infrastructure
  • Connects fragmented Microsoft records into one accountable operating picture
  • Makes agent workforce explicit and operable within two weeks
  • Operator retains final authority over all changes
  • Evidence-backed decision trails throughout the platform
Community votes00
DR (Domain Rating by Ahrefs)2 no change since last check16 no change since last check
Trust Flow (Majestic)07
Citation Flow (Majestic)1526
Referring domains (Majestic)488

4 details filled in for both companies.

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