Skip to main content

Built by makers, shipped in public

Sign in

Unfix vs Skill Check

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

Unfix compared with Skill Check
DetailUnfix logo Unfix Skill Check
What it doesIndependent verification for bug fixes in C, C++ and firmware AI agent skill readiness checker that grades paperwork and permissions
StageMVP MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given Free
PricingNot given Not given
Key features
  • Reproduces bugs deterministically on base version before applying fix
  • Verifies fix removal confirms bug returns
  • Scans diffs for masking patterns like disabled sanitizers and weakened tests
  • Runs on real hardware via STM32 NUCLEO boards and ST-Link
  • Integrates with AI coding agents as MCP tool
  • Posts verdicts as GitHub pull request comments
  • Provides per-test verdicts: FIXED, BROKEN, FLAKY ON THE BENCH, FLAKY WORSE
  • Runs entirely on your machines with no cloud dependency
  • Generates reports for change records and regulatory compliance
  • Runs builds and tests in Linux container on your machine
  • 13 rule-based checks on agent skills
  • Scans permissions, credentials, endpoints and data handling
  • Reads linked files up to 2 levels deep
  • Completes scan in about 10 seconds
  • No sign-up required
  • Reads sites like ChatGPT and Claude do
What makes it different
  • Only verification tool that reverses the fix to prove tests actually catch the bug
  • Deterministic verdict with no AI language model in decision logic
  • Tests on real hardware boards, not just laptops
  • Detects masking techniques that hide bugs while passing tests
  • Validated public benchmark showing 4 VERIFIED and 6 REJECTED on real open-source bugs
  • Only free tool that checks AI agent skill paperwork before installation
  • Uses the same reading methods as leading AI assistants
  • Instant results with 13 standardized checks
Community votes00
DR (Domain Rating by Ahrefs)2 +2 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

4 details filled in for both companies.

More alternatives to Unfix More alternatives to Skill Check

Ask us