Agent Role Contracts vs Plimbo

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

Agent Role Contracts compared with Plimbo
Detail	Agent Role Contracts	Plimbo
What it does	Offline checker for AI agent role declarations without executing agents	Vibe code. Break nothing.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	JP	Not given
Pricing model	Open source	Freemium
Pricing	Not given	Free: $0, 300 AI checks a month. Pro: $7.99 a month or $72 a year, 1,000 AI checks a day.
Key features	Checks role and authority consistency Validates reviewer-implementer separation Verifies role references exist Checks filesystem write scope boundaries Runs completely offline without network access Three command modes: validate, explain, and handoff Clear exit codes for pass/fail/error states MIT open source license Bundled starter fixtures and examples	Prompt expansion with project context Shows files that will be touched Protected areas flagging Detects unasked-for edits Customizable rules file Secret redaction before sending to AI Up to 3 computers on Pro
What makes it different	Designed through public feedback dialogue with incorporated role and path mapping improvements Bundles working examples that run without API keys or accounts	Rules travel with every prompt Flags unintended changes before they happen Minimal AI checks needed
Community votes	0	0
DR (Domain Rating by Ahrefs)	13 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	9	0
Citation Flow (Majestic)	29	0
Referring domains (Majestic)	51	0

4 details filled in for both companies.