Developer Tools●●Solid
Turn E2E tests into observability signals
Catches silent UI regressions that Sentry and RUM dashboards completely miss.
Solve My ProblemShip ItSlick
mitchm
321mo ago
Back to browse
GitHub Repository
Faultsense JS agent — source-available browser instrumentation
2 starsTypeScript
An assertion library for E2E testing and real user monitoring
by mitchm·Jul 3, 2026·7 points·1 comment
Similar Projects
Developer Tools●●Solid
Smartass – TypeScript test assertions with type-narrowing signatures
Type-narrowing assertions that Jest and Vitest's expect() can't provide.
Solve My ProblemNiche Gem
xiuyuan
3019d ago
Developer Tools●Mid
Should – Expressive Assertions for Go
Yet another Go assertion library competing directly with testify's established ecosystem.
CozyNiche Gem
andrey-1201
802mo ago
Developer Tools●●Solid
Pytest-fastprom – Turn your SLOs into pytest assertions
Asserts SLOs against Prometheus metrics instead of flaky wall-clock timing in CI.
Solve My ProblemBig BrainNiche Gem
lujeni_
101mo ago
Developer Tools●●Solid
Unbug 0.5 – Rust runtime debug assertions
The ? operator macro attaching breakpoints to error propagation is genuinely clever.
Niche GemCozy
BrainBacon
202mo ago
Developer Tools●●Solid
LLMTest – The pytest for LLMs with 22 built-in assertions
Pytest syntax for LLM testing avoids LLM-judge cost, but feature parity vs. LangSmith and Braintrust unproven.
Solve My ProblemSlick
furtims
403mo ago