solidjs/solid @solidjs/diagnostics@2.0.0-rc.3 on GitHub

a85c889: New package @solidjs/diagnostics: agent-consumable diagnostics harness. captureArtifact() runs a scenario with the dev-mode diagnostic and attribution channels open and folds both into a serializable artifact; assertion helpers (expectNoDiagnostics, expectDiagnostic, expectRerunBudget, expectNoWaste) and scenario budgets (assertBudget, checked-in budget files) gate correctness, update granularity, and wasted recomputes; Vitest matchers via @solidjs/diagnostics/vitest; a browser bridge (@solidjs/diagnostics/browser) plus a structurally-typed Playwright adapter (@solidjs/diagnostics/playwright) capture the same artifacts from real pages, with live whyDidRun/costs queries against an open session; @solidjs/diagnostics/protocol publishes the wire types for the vite-plugin dev-server endpoint; artifactToJSONL() provides line-oriented egress for offline/agent analysis. solid-js now ships a skills/reactivity-diagnostics repair guide mapping every diagnostic code to its fix.