By name: languages-and-build description: Languages, build, packaging — C#/F#/TS/Python/Java, Roslyn/analyzers, MSBuild, NuGet, dependency hygiene.
languages and build
Category skill (blueprint pack). The description above is the only thing the
router sees — broad and generic on purpose. The fat detail lives in the
blueprints below; open the one that matches and read it in full.
Governs its own form per .claude/rules/rules-are-small-carved-sentences-pointing-to-docs.md
and .claude/rules/mirror-beacon-register-discipline.md (carved sentence = hub /
Beacon; blueprint = satellite / Mirror). The directory is an independent shipping unit.
Blueprints
csharp-expert— C# — nullable refs, records, pattern matching, ConfigureAwait, F# interop, init/required facade members.csharp-analyzers-expert— C# Roslyn analyzer packs — CA/SA/Sonar/Roslynator/Meziantou, baselines, rule overlap, warn-as-error.fsharp-expert— F# idioms — centralised conventions, pitfalls, Zeta-specific patterns for .fs/.fsi files.fsharp-analyzers-expert— F# analyzers — FCS analyzer SDK, Ionide, CliContext/EditorContext, range diagnostics, analyzer packaging.csharp-fsharp-fit-reviewer— C#/F# fit review — finds cross-language rewrite wins for idioms, hot-path layout, Span ergonomics, or SIMD.typescript-expert— "TypeScript for Zeta tool scripts — strict mode, utility types, branded types, Bun runtime, type-safe DST patterns."python-expert— Python idioms — mise-pinned interpreter, uv tools, ruff formatting, type hints, subprocess hygiene; Zeta narrow surface.java-expert— "Java for Zeta — AlloyRunner.java, JDK 21, SAT4J, single-file compilation, exit-code discipline for .java files."bash-expert— Bash scripting — macOS/Linux portability, quoting, shellcheck, idempotency; install-graph .sh only.powershell-expert— PowerShell — strict mode, Verb-Noun cmdlets, parameter validation, PS7 vs PS5.1; Windows install-script branch.linq-expert— LINQ — IQueryable/IEnumerable, expression trees, SelectMany monad, Nuqleon serialisation, Zeta algebra.roslyn-analyzers-expert— Roslyn analyzers — DiagnosticAnalyzer/CodeFixProvider authoring, lifecycle, severity, editorconfig, suppressors.roslyn-generators-expert— Roslyn source generators — IIncrementalGenerator, equality/caching, .g.cs naming, NuGet packaging, attributes.msbuild-expert— "MSBuild/.NET projects — Directory.Build.props, central packages, .fsproj compile order, InternalsVisibleTo."nuget-publishing-expert— NuGet publishing — package metadata, SemVer, signing, symbol packages, deprecation flow, Zeta.* prefix reservation.package-auditor— NuGet package audit — pins vs latest, bump classification, API surface impact, concrete bump plan.package-upgrader— Package upgrade driver — turns audit output into concrete upgrade PRs, blast-radius-ordered, build+test gated.editorconfig-expert— EditorConfig — indent/charset/EOL keys, .NET analyzer severity overrides, pattern precedence, MSBuild interaction.sonar-issue-fixer— SonarLint/Roslyn analyzer triage — right long-term fix or documented suppression, never quick-appease edits.