anonymous · Seeder

Published samples

• chrono 0.4.42: Parse datetime strings with fixed-length fractional seconds followed by trailing literals without ParseError(TooShort), fixed in chrono 0.4.42 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWNaiveDateTime::parse_from_strNaiveTime::parse_from_strrust MIT-0 · 2026-08-16
• github.com/google/uuid v1.6.0: Guarantee strict monotonic ordering for rapid sequential UUIDv7 generation within the same millisecond in google/uuid v1.6.0 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWuuid.NewV7go MIT-0 · 2026-08-16
• gopkg.in/yaml.v3 v3.0.1: Unmarshal commented block sequences with malformed syntax without nil pointer dereference panic fixed in gopkg.in/yaml.v3 v3.0.1 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWgopkg.in/yaml.v3.Unmarshalgo MIT-0 · 2026-08-16
• packaging 24.2: Auto-enable prerelease matching for '>' and '<' specifiers containing prereleases fixed in packaging 24.2 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpackaging.specifiers.Specifierpackaging.specifiers.SpecifierSetpython MIT-0 · 2026-08-16
• urllib3 2.6.3: Cap Retry-After delay to 21600 seconds (6 hours) by default instead of honoring unbounded server values starting in urllib3 2.6.3 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWurllib3.util.Retryurllib3.util.Retry.parse_retry_afterurllib3.util.Retry.get_retry_afterurllib3.util.Retry.DEFAULT_RETRY_AFTER_MAXpython MIT-0 · 2026-08-16
• zod 4.4.3: Restore .catch() fallback and preprocess evaluation for absent keys in z.object schemas fixed in zod 4.4.3 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWz.objectz.ZodType.catchz.preprocessnode MIT-0 · 2026-08-16
• @tanstack/query-core 5.90.20: @tanstack/query-core 5.90.20 fixes asynchronous execution of onMutate by running it synchronously during mutate() when mutationCache onMutate is undefined Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWMutationObserverQueryClientnode MIT-0 · 2026-08-16
• undici 8.4.1: Dispatch Client and Pool requests composed with interceptors.dns() without origin TypeError in undici 8.4.1 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWundici.interceptors.dnsundici.Clientundici.Poolnode MIT-0 · 2026-08-16
• typescript 5.7.3: Type-only JSON imports in ECMAScript modules with NodeNext module resolution do not require import attributes or trigger TS1543 in TypeScript 5.7.3 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWtypescript.createProgramtypescript.getPreEmitDiagnosticsnode MIT-0 · 2026-08-16
• vite 8.1.5: Vite 8.1.5 scopes switch-case block declarations to the switch block during SSR transforms, preventing false function-level shadowing of imported bindings that caused ReferenceError on external references. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcreateServerssrLoadModulenode MIT-0 · 2026-08-16
• joblib 1.5.3: Handle closure serialization failures and backend fallback when switching joblib from loky to multiprocessing Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWjoblib.Paralleljoblib.delayedjoblib.wrap_non_picklable_objectsjoblib.parallel_backendjoblib.parallel.DEFAULT_BACKENDjoblib.parallel.get_active_backendjoblib.externals.loky.backend.context.START_METHODSpython MIT-0 · 2026-08-15
• react 18.3.1: Identify what breaks at runtime (hooks, context) vs passes (pure JSX) when duplicate React instances exist from peer dependency resolution in Node Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWreact.createElementreact.useStatereact.createContextreact.isValidElementreact-dom/server.renderToStringnode MIT-0 · 2026-08-15
• encoding/json v1.26.5: omitempty does not omit zero-value structs or zero time.Time and does not omit non-nil pointers to zero values, but omits both nil and empty slices Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWencoding/json.Marshalomitemptygo MIT-0 · 2026-08-15
• rollup 4.34.8: Marking a transpiled CommonJS dependency as external in Rollup silently breaks default imports in CJS output unless output.interop is set to auto, because @rollup/plugin-commonjs ignores external modules. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWrollupexternaloutput.interop@rollup/plugin-commonjsnode MIT-0 · 2026-08-15
• tokio 1.43.0: Spawning non-Send futures in Tokio requires driving a LocalSet explicitly, avoiding uncontextualized spawn_local panics and unpolled task starvation Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWtokio::task::LocalSettokio::task::spawn_localtokio::task::LocalSet::run_untiltokio::task::LocalSet::spawn_localrust MIT-0 · 2026-08-15
• structlog 26.1.0: Hand off structlog to stdlib logging without dictConfig disabling pre-existing loggers or misplacing renderers in the processor chain Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWstructlog.configurestructlog.stdlib.LoggerFactorystructlog.stdlib.ProcessorFormatterstructlog.stdlib.ProcessorFormatter.wrap_for_formatterstructlog.stdlib.filter_by_levellogging.config.dictConfigpython MIT-0 · 2026-08-15
• typescript 5.8.2: tsconfig paths resolve during TypeScript compilation but are emitted unchanged by tsc, failing at runtime in Node.js without package subpaths or bundler alias plugins Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWts.resolveModuleNamets.transpileModulecompilerOptions.pathscompilerOptions.baseUrlnode MIT-0 · 2026-08-15
• golang.org/x/sync v0.22.0: Handle errgroup derived context cancellation on successful Wait, first-completion error selection, cooperative sibling cancellation, and TryGo dropping semantics Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWerrgroup.WithContextGroup.GoGroup.WaitGroup.SetLimitGroup.TryGogo MIT-0 · 2026-08-15
• anyio 4.13.0: Catching child task exceptions directly with standard except clauses fails because AnyIO task groups bundle all failures into ExceptionGroup while cancelling unshielded sibling scopes Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWanyio.create_task_groupanyio.CancelScopeanyio.get_cancelled_exc_classpython MIT-0 · 2026-08-15
• pino 10.3.1: Handle pino child logger option traps where serializers prototype-merge and apply to bindings immediately, child redact completely replaces parent redactions without merging, levels dynamically track the parent until severed, and messageKey, nestedKey, base, hooks, and level formatters on child are silently ignored Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpinopino.childpino.serializerspino.redactpino.levelpino.formatterspino.hookspino.messageKeypino.nestedKeynode MIT-0 · 2026-08-15
• @tanstack/query-core 5.67.1: Query options in TanStack Query v5 silently ignore cacheTime and callbacks (onSuccess/onError/onSettled) while removing status 'loading' in favor of 'pending' where isLoading is false for disabled queries Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWQueryClientQueryObservernode MIT-0 · 2026-08-15
• chrono 0.4.45: Disabling chrono default features strips Utc::now and Local which require the clock feature rather than std, while serde support requires an explicit opt-in serde feature and serializes DateTime as an RFC 3339 string Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWchrono::DateTimechrono::Utcchrono::NaiveDatechrono::NaiveTimechrono::NaiveDateTimechrono::Durationrust MIT-0 · 2026-08-15
• undici 7.29.0: Retry fetch requests with bodies safely and avoid cross-realm TypeError between undici and global fetch Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWfetchRequestResponseHeadersRequest.cloneRequest.bodyUsednode MIT-0 · 2026-08-15
• sigs.k8s.io/yaml v1.4.0: Decode YAML with sigs.k8s.io/yaml where json tags take precedence and yaml tags are ignored unlike yaml.v3 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsigs.k8s.io/yaml.Unmarshalsigs.k8s.io/yaml.UnmarshalStrictgopkg.in/yaml.v3.Unmarshalgo MIT-0 · 2026-08-15
• packaging 24.1: Evaluate prereleases, epochs, and local versions in SpecifierSet without falling into PEP 440 exclusion traps Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpackaging.specifiers.SpecifierSetpackaging.specifiers.InvalidSpecifierpackaging.version.Versionpython MIT-0 · 2026-08-15
• semver 7.8.5: Evaluate 0.x caret and tilde boundaries, prerelease range matching rules, and build metadata equality in semver Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsemver.satisfiessemver.subsetsemver.intersectssemver.comparesemver.compareBuildsemver.maxSatisfyingnode MIT-0 · 2026-08-15
• greenlet 3.4.0: Handle SQLAlchemy 2.0 select joinedload collection deduplication requiring unique(), multi-column scalars() column truncation, and Row mapping access via _mapping Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsqlalchemy.selectsqlalchemy.orm.joinedloadsqlalchemy.orm.Session.scalarssqlalchemy.orm.Session.executesqlalchemy.engine.Result.uniquesqlalchemy.engine.Result.mappingssqlalchemy.engine.Row._mappingpython MIT-0 · 2026-08-15
• lodash 4.17.21: CommonJS dependencies require both ssr.noExternal and ssr.optimizeDeps to load named ESM imports under Vite SSR; externalizing fails with SyntaxError while noExternal alone silently produces undefined exports. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcreateServerssrLoadModulessr.noExternaloptimizeDepsssr.optimizeDepsnode MIT-0 · 2026-08-15
• jest 29.7.0: Jest requires Node VM modules (--experimental-vm-modules) and transform: {} to run real ESM, rejecting .js in extensionsToTreatAsEsm and failing top-level await and import.meta in default CJS pipeline Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWextensionsToTreatAsEsmtransformunstable_shouldLoadAsEsmnode MIT-0 · 2026-08-15
• typescript 5.8.2: Differentiate import specifier resolution, extensionless imports, and package exports maps across TypeScript bundler, node16, and nodenext resolution modes Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcreateProgramresolveModuleNameModuleResolutionKindModuleKindnode MIT-0 · 2026-08-15
• eslint 9.20.0: Differentiate global vs scoped ignores, relative glob resolution, and universal no-files objects in ESLint v9 flat config Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWESLintcalculateConfigForFileisPathIgnoredlintTextnode MIT-0 · 2026-08-15
• vitest 4.1.10: Differentiate per-file test environments, docblock precedence over project configs, sequential setupFiles DOM lifecycle, and globals:true symbol exposure in Vitest 4 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcreateVitestenvironmentenvironmentMatchGlobssetupFilesglobalsnode MIT-0 · 2026-08-15
• ruff 0.15.22: Resolve Ruff configuration precedence across .ruff.toml, ruff.toml, pyproject.toml, and CLI flags with rule composition semantics Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWruff.find_ruff_binpython MIT-0 · 2026-08-15
• pydantic-settings 2.15.0: Pin pydantic-settings source precedence (init kwargs > os.environ > .env > defaults) and nested delimiter resolution versus raw JSON env vars Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWBaseSettingsSettingsConfigDictpython MIT-0 · 2026-08-15
• nikic/php-parser 5.8.0: Fix ParserFactory::create() fatalling after upgrading nikic/php-parser to v5 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONParserFactory::createForNewestSupportedVersionPhpParser.Errorphp 8 MIT-0 · 2026-08-15
• protobuf 6.33.6: Know which protobuf backend actually loaded: upb ships inside the binary wheel, so a musl/Alpine image with no prebuilt wheel silently gets the pure-Python fallback with different descriptor types and no warning Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWgoogle.protobuf.internal.api_implementation.Typegoogle.protobuf.descriptor.Descriptorpython MIT-0 · 2026-08-15
• github.com/jackc/pgx/v5 v5.10.0: Handle NULL struct scans via pointers or pgtype, prevent column-mismatch errors in RowToStructByName(Lax), and safely release pgxpool connections without post-release panics Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpgx.RowToStructByNamepgx.RowToStructByNameLaxpgx.RowToStructByPospgxpool.Poolpgxpool.Conn.Releasepgxpool.Conn.Conngo MIT-0 · 2026-08-15
• lru-cache 11.5.2: Handle lru-cache TTL stale entry reads without get() silently evicting the entry on first read or maxSize dropping oversized items without error Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWLRUCacheLRUCache#getLRUCache#hasLRUCache#setLRUCache#peekLRUCache#sizeLRUCache#calculatedSizenode MIT-0 · 2026-08-15
• tomli 2.4.1: Read TOML across Python versions where stdlib tomllib is absent (<3.11) versus present (>=3.11) without tripping on binary-only load, str-only loads, positional parameters, and missing dump methods Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWtomli.loadtomli.loadstomli.TOMLDecodeErrorpython MIT-0 · 2026-08-15
• puppeteer 24.4.0: Distinguishing puppeteer headless: true vs headless: 'shell' flags and handling container sandbox requirements Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpuppeteer.defaultArgspuppeteer.executablePathnode MIT-0 · 2026-08-15
• httpx 0.28.1: Configure httpx timeouts across connect, read, write, and pool phases without falling for requests-style unbounded defaults, partial kwarg ValueError traps, or 2-tuple unlimited-write surprises Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWhttpx.Timeouthttpx.Clienthttpx.ConnectTimeouthttpx.ReadTimeouthttpx.WriteTimeouthttpx.PoolTimeouthttpx.TimeoutExceptionhttpx.USE_CLIENT_DEFAULTpython MIT-0 · 2026-08-15
• pino 9.6.0: Route pino logs via worker transports without dropping buffered output or triggering sonic-boom unready flush errors on process exit Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpinopino.transportpino.destinationnode MIT-0 · 2026-08-15
• polars 1.43.2: Identify where Polars LazyFrame plans stop being lazy, which inspection properties emit PerformanceWarning, and how caching and row indexing alter query execution DAGs Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpolars.LazyFrameLazyFrame.collectLazyFrame.collect_schemaLazyFrame.cacheLazyFrame.explainLazyFrame.filterLazyFrame.selectLazyFrame.with_columnsLazyFrame.with_row_indexpolars.concatpolars.exceptions.PerformanceWarningpolars.exceptions.ShapeErrorpython MIT-0 · 2026-08-15
• pyarrow 25.0.1: PyArrow StringScalar equality with str literals returns False and null scalars evaluate truthy, while to_pandas degrades text columns to object dtype unless pandas metadata or ArrowDtype is present and distinct string types reject concatenation Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpyarrow.arraypyarrow.scalarpyarrow.StringScalarpyarrow.stringpyarrow.large_stringpyarrow.string_viewpyarrow.concat_arrayspyarrow.Table.from_pydictpyarrow.Table.from_pandaspyarrow.Table.to_pandaspyarrow.Array.to_numpypyarrow.Array.to_pylistpython MIT-0 · 2026-08-15
• thiserror 2.0.20: Unannotated cause fields silently sever Error::source(), #[error(transparent)] delegates rather than wrapping, and #[from] drops call-site context Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWthiserror::Errorstd::error::Error::sourcestd::convert::Fromrust MIT-0 · 2026-08-15
• zod 4.4.3: Identify constructor coercion traps in z.coerce and verify that .refine() discards return values without mutating parsed output Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWz.coerce.booleanz.coerce.numberz.coerce.stringz.coerce.datez.coerce.bigintz.ZodType.refinenode MIT-0 · 2026-08-15
• getrandom 0.3.4: getrandom 0.3 replaces getrandom::getrandom and js/custom cargo features with getrandom::fill and --cfg getrandom_backend="custom" linking __getrandom_v03_custom Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWgetrandom::fillgetrandom::fill_uninitgetrandom::u32__getrandom_v03_customrust MIT-0 · 2026-08-15
• net/http v1.26.5: http.Transport.ResponseHeaderTimeout does not bound slow response body reads once headers arrive, while http.Client.Timeout spans the full response body lifecycle Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWhttp.Clienthttp.Transporthttp.Responsego MIT-0 · 2026-08-15
• rustls 0.23.43: Configuring a custom CryptoProvider when a transitive dependency has already locked the process default via install_default. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWrustls::crypto::CryptoProvider::install_defaultrustls::ClientConfig::builderrustls::ClientConfig::builder_with_providerrust MIT-0 · 2026-08-15
• tokio 1.43.0: Calling blocking operations and nested block_on inside Tokio contexts requires navigating runtime-flavor panic traps and thread affinity guarantees Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWtokio::runtime::Handle::block_ontokio::task::block_in_placetokio::task::spawn_blockingrust MIT-0 · 2026-08-15
• pandas 2.3.3: Chained assignment discards mutations while text columns default to object dtype and fallback to python storage without pyarrow Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpandas.DataFramepandas.Seriespandas.StringDtypepandas.errors.ChainedAssignmentErrorpandas.errors.SettingWithCopyWarningpandas.options.mode.copy_on_writepython MIT-0 · 2026-08-15
• undici 8.10.0: Outbound requests ignore HTTP_PROXY unless EnvHttpProxyAgent is explicitly configured, where lowercase env var spelling wins and HTTP proxy acts as fallback for HTTPS but not vice versa Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWundici.EnvHttpProxyAgentundici.ProxyAgentundici.Agentundici.getGlobalDispatcherundici.setGlobalDispatchernode MIT-0 · 2026-08-14
• pillow 10.4.0: Querying Pillow format registries or codecs directly without Image.init returns empty tables or false negatives, and openable formats like PSD are absent from Image.SAVE Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWPIL.Image.initPIL.Image.SAVEPIL.Image.OPENPIL.Image.EXTENSIONPIL.Image.registered_extensionsPIL.features.checkpython MIT-0 · 2026-08-14
• cryptography 47.0.0: Installing and importing cryptography requires the compiled Rust extension _rust rather than pure CFFI dynamic compilation, causing source builds on musl images to fail on Cargo instead of C toolchains. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcryptography.hazmat.bindings._rustcryptography.hazmat.bindings._rust.x509.Certificatecryptography.hazmat.bindings.openssl.binding.Bindingcryptography.x509.load_pem_x509_certificatecryptography.hazmat.primitives.ciphers.Cipherpython MIT-0 · 2026-08-14
• ws 8.21.3: Distinguish ws package EventEmitter API and Buffer payloads from native WHATWG EventTarget WebSocket and string payloads in Node Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWWebSocketWebSocket.prototype.onWebSocket.prototype.pingWebSocket.prototype.binaryTypeWebSocketServernode MIT-0 · 2026-08-14
• vite 6.2.0: Avoid renamed Vite configuration keys (brotliSize, server.force, server.fsServe) that are silently accepted but ignored at runtime. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWresolveConfignode MIT-0 · 2026-08-14
• sharp 0.33.5: Loading sharp on Alpine Linux container throws a platform-mismatch Error referencing @img/sharp-linuxmusl-x64 rather than MODULE_NOT_FOUND or source build instructions Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsharpnode MIT-0 · 2026-08-14
• go.opentelemetry.io/otel v1.45.0: Unwired OpenTelemetry tracers silently emit invalid zero-context spans while batch-buffered tracers drop spans without explicit flush or shutdown Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWgo.opentelemetry.io/otel.Tracergo.opentelemetry.io/otel/sdk/trace.NewTracerProvidergo.opentelemetry.io/otel/sdk/trace.WithSyncergo.opentelemetry.io/otel/sdk/trace.WithBatchergo.opentelemetry.io/otel/sdk/trace/tracetest.NewInMemoryExportergo MIT-0 · 2026-08-14
• serde 1.0.229: Untagged enum deserialization in serde swallows all inner field and type errors across attempted variants, returning only a generic variant mismatch error. Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWserde::Deserializeserde_json::from_strrust MIT-0 · 2026-08-14
• zeitwerk 2.8.3: Autoload constants with Zeitwerk and work out why a correctly written class raises Zeitwerk::NameError, what the error does and does not tell you, and what eager loading really catches Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWZeitwerk::LoaderZeitwerk::Loader#push_dirZeitwerk::Loader#setupZeitwerk::Loader#eager_loadZeitwerk::Loader#all_expected_cpathsZeitwerk::InflectorZeitwerk::Inflector#camelizeZeitwerk::Inflector#inflectZeitwerk::NameErrorZeitwerk::Errorruby 3 MIT-0 · 2026-08-14
• sorbet-runtime 0.6.13426: Know what sorbet-runtime enforces when the static checker is not running, and where the same type expression is checked deeply, shallowly, or not at all Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWT::SigT::StructT::ArrayT::HashT::Types::TypedArrayT.letT.castT.unsafeT::HelpersT::Props::Serializableruby 3 MIT-0 · 2026-08-14
• sinatra 4.2.1: Test a Sinatra 4 app with rack-test in the same process, with no server, and get the params, filter and 404 behaviour right instead of guessing it Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWSinatra::BaseSinatra::IndifferentHashSinatra::NotFoundSinatra::Base#haltSinatra::Base#paramsRack::Test::MethodsRack::Test::SessionRack::Protection::HostAuthorizationRack::Headersruby 3 MIT-0 · 2026-08-14
• winnow 1.0.4: Port a pre-1.0 winnow parser to winnow 1.0, where the alt and tuple arity caps were lowered below what the changelog claims, the Result/ModalResult pair had already replaced PResult back in 0.7.0, dec_uint silently refuses leading zeros on every version, and 0.7.14 added a built-in Pratt parser Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONwinnow::combinator::altwinnow::combinator::seqwinnow::combinator::expressionwinnow::combinator::cut_errwinnow::combinator::separatedwinnow::combinator::repeatwinnow::ascii::dec_uintwinnow::token::literalwinnow::ModalResultwinnow::Resultrust 1 MIT-0 · 2026-08-14
• wrapt 2.3.0: Subclass the right object proxy base in wrapt 2.x so iteration works Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWBaseObjectProxyObjectProxyAutoObjectProxywith_signaturefunction_wrapperpython 3.12 MIT-0 · 2026-08-14
• ostruct 0.6.3: Work out which stdlib libraries Ruby 3.4 actually forces into the Gemfile and fix the LoadError, without OpenStruct silently overwriting a method a data key collides with Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXGem::BUNDLED_GEMS::SINCEOpenStructOpenStruct#[]OpenStruct#to_hSetSet#include?Abbrev.abbrevruby 3 MIT-0 · 2026-08-14
• ramsey/uuid 4.9.3: Choose between UUID v4 and v7, store and parse them, and compare two UUID objects without == lying Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWRamsey.Uuid.UuidUuid::uuid4Uuid::uuid7Uuid::fromStringUuid::fromBytesUuid::isValidUuid::NILUuid::MAXUuidInterface::toStringUuidInterface::getBytesUuidInterface::getVersionUuidInterface::equalsUuidInterface::compareToRamsey.Uuid.Lazy.LazyUuidFromStringRamsey.Uuid.Rfc4122.FieldsInterfaceRamsey.Uuid.Exception.InvalidUuidStringExceptionRamsey.Uuid.Exception.UnsupportedOperationExceptionphp 8 MIT-0 · 2026-08-14
• league/csv 9.28.0: Read and write CSV with league/csv without losing a UTF-8 BOM, a quote, a trailing backslash or a whitespace-only field Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWLeague.Csv.ReaderLeague.Csv.WriterLeague.Csv.BomLeague.Csv.SyntaxErrorReader::setHeaderOffsetAbstractCsv::skipInputBOMAbstractCsv::includeInputBOMAbstractCsv::setOutputBOMAbstractCsv::setEscapeWriter::forceEnclosurephp 8 MIT-0 · 2026-08-14
• doctrine/dbal 4.4.4: Query an in-memory SQLite through Doctrine DBAL 4 without the parameter binding, empty result and schema introspection traps Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWDoctrine.DBAL.DriverManagerConnection::executeQueryResult::fetchAssociativeDoctrine.DBAL.ParameterTypeDoctrine.DBAL.ArrayParameterTypeQueryBuilder::createNamedParameterQueryBuilder::setParameterAbstractSchemaManager::introspectTableType::lookupNamephp 8 MIT-0 · 2026-08-14
• brick/math 0.19.1: Divide and round BigDecimal money values on brick/math 0.19 after RoundingMode became an enum and of() stopped accepting floats Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONBigDecimal::dividedByBigDecimal::dividedByExactBigDecimal::fromFloatShortestBigDecimal::fromFloatExactBigInteger::dividedByRoundingModephp 8 MIT-0 · 2026-08-14
• nanostores 1.4.2: Work out what nanostores' lazy mounting actually does: which argument of a listener is the changed key, why .get() fires onMount and re-runs it every second, why a computed store accepts .set(), and why .value and .get() disagree Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWnanostores.atomnanostores.mapnanostores.computednanostores.batchnanostores.onMountnanostores.keepMountnanostores.cleanStoresnanostores.listenKeysnanostores.deepMapnanostores.readonlyTypenanostores.tasknanostores.allTasksnanostores.STORE_UNMOUNT_DELAYStore.listenStore.subscribeStore.setKeyStore.getStore.valueStore.lcglobalThis.nanostoresGlobalnode 22 MIT-0 · 2026-08-14
• github.com/goccy/go-yaml v1.19.2: Switch from gopkg.in/yaml.v3 to goccy/go-yaml without the silent behaviour changes Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONyaml.Marshalyaml.MarshalWithOptionsyaml.Indentyaml.IndentSequenceyaml.Unmarshalyaml.UnmarshalWithOptionsyaml.FormatErroryaml.AllowDuplicateMapKeyyaml.DuplicateKeyErrorgo 1.26 MIT-0 · 2026-08-14
• req 0.7.2: Stub HTTP responses for Elixir code that uses Req, with no network, no fake server process and no mocking library Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWReq.Test.stubReq.Test.expectReq.Test.verify!Req.Test.jsonReq.Test.transport_errorReq.PlugReq.Steps.decode_bodyReq.Steps.retryReq.Steps.handle_http_errorsReq.request!Req.TransportErrorPlug.Conn.send_respelixir 1 MIT-0 · 2026-08-14
• nimble_pool 1.1.0: Check a resource out of a NimblePool and survive the failure paths: what the checkout function must return, which failures the pool recovers from, and which one silently leaks a worker Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWNimblePool.start_linkNimblePool.checkout!NimblePool.updateNimblePool.child_specNimblePool.init_poolNimblePool.init_workerNimblePool.handle_checkoutNimblePool.handle_checkinNimblePool.handle_updateNimblePool.handle_cancelledNimblePool.terminate_workerelixir 1 MIT-0 · 2026-08-14
• nimble_csv 1.3.0: Define a NimbleCSV parser module and parse and dump CSV with it: header skipping, quoted fields holding separators and newlines, parse errors, and iodata output Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWNimbleCSV.defineNimbleCSV.RFC4180NimbleCSV.RFC4180.parse_stringNimbleCSV.RFC4180.parse_enumerableNimbleCSV.RFC4180.parse_streamNimbleCSV.RFC4180.dump_to_iodataNimbleCSV.ParseErrorelixir 1 MIT-0 · 2026-08-14
• pool 1.5.2: Run at most N async operations at once in Dart with package:pool, keep the results lined up with the inputs, and know what the timeout actually guards Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWPoolPool.withResourcePool.requestPool.forEachPool.closePool.donePool.isClosedPoolResourcePoolResource.releasePoolResource.allowReleaseTimeoutExceptiondart 3 MIT-0 · 2026-08-14
• json_annotation 4.12.0: Write fromJson and toJson by hand in Dart with dart:convert and json_annotation, with no build_runner and no generated file, and find out where an unchecked payload actually fails Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWjsonDecodejsonEncodeJsonUnsupportedObjectErrorJsonConverterJsonKeyJsonSerializable$checkedCreate$checkedConvert$checkKeysCheckedFromJsonExceptionMissingRequiredKeysExceptionUnrecognizedKeysExceptionDisallowedNullValueExceptionDateTime.parseDateTime.toIso8601Stringdart 3 MIT-0 · 2026-08-14
• equatable 2.1.0: Give a Dart class value equality with no code generation, so two instances with the same fields are ==, hash the same, and work as Set members and Map keys Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWEquatableEquatable.propsEquatable.stringifyEquatableMixinEquatableConfigEquatableConfig.stringifycopyWithhashCodeSet.containsMap.containsKeydart 3 MIT-0 · 2026-08-14
• args 2.7.0: Build and test a package:args CommandRunner subcommand CLI, telling apart which node reports a UsageException and pinning the option rules that differ from argparse, getopt and clap Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWCommandRunnerCommandRunner.runCommand.runCommand.argResultsCommand.usageExceptionUsageExceptionArgParser.addFlagArgParser.addOptionArgParserExceptionArgResults.flagArgResults.optionArgResults.restdart 3 MIT-0 · 2026-08-14
• rand 0.9.5: Update rand 0.8 code to 0.9 after thread_rng, gen and gen_range were renamed, and keep tests reproducible Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONrand::rngRng::randomRng::random_rangeSeedableRng::seed_from_u64rust 1 MIT-0 · 2026-08-14
• chrono 0.4.45: Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWDateTime::from_timestampNaiveDate::from_ymd_optNaiveDateTime::and_utcNaiveDate::checked_add_monthsrust 1 MIT-0 · 2026-08-14
• shelf 1.4.2: Handle and test shelf HTTP requests in Dart without binding a port, by building a Request and calling the router, middleware and handler directly Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWRouterRouter.routeNotFoundRequest.paramsPipeline.addMiddlewareMiddlewareResponse.okMessage.readAsStringMessage.readResponse.changeRequest.changedart 3 MIT-0 · 2026-08-14
• symfony/console 8.1.4: Test a symfony/console command with CommandTester, with no process and no terminal Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWSymfony.Component.Console.Tester.CommandTesterCommandTester::executeCommandTester::setInputsCommandTester::runSymfony.Component.Console.Tester.ApplicationTesterCommand::configureCommand::executeInputArgument::REQUIREDInputOption::VALUE_REQUIREDOutputInterface::VERBOSITY_VERBOSESymfony.Component.Console.Question.Questionphp 8 MIT-0 · 2026-08-14
• ecto 3.14.1: Validate a plain map with Ecto.Changeset alone: an embedded_schema, no Repo, no database and no ecto_sql Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWEcto.Schema.embedded_schemaEcto.Changeset.castEcto.Changeset.validate_requiredEcto.Changeset.validate_numberEcto.Changeset.validate_formatEcto.Changeset.validate_lengthEcto.Changeset.empty_valuesEcto.Changeset.field_missing?Ecto.Changeset.apply_actionEcto.Changeset.apply_changesEcto.Changeset.traverse_errorsEcto.Changeset.put_changeEcto.Changeset.force_changeEcto.InvalidChangesetErrorelixir 1 MIT-0 · 2026-08-14
• once_cell 1.21.4: Decide what still needs once_cell now that std has OnceLock, LazyLock, cell::OnceCell and cell::LazyCell, by measuring which once_cell APIs have a stable std equivalent on this rustc and which are still gated Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONstd::sync::OnceLockOnceLock::setOnceLock::get_or_initOnceLock::takestd::sync::LazyLockLazyLock::forceLazyLock::force_mutstd::cell::OnceCellstd::cell::LazyCellonce_cell::sync::OnceCellonce_cell::sync::OnceCell::get_or_try_initonce_cell::sync::Lazyonce_cell::unsync::OnceCellrust 1 MIT-0 · 2026-08-14
• axum 0.8.9: Test axum handlers and routing without binding a port by driving the whole Router through tower's ServiceExt::oneshot, and get the exact status for each way a request can be wrong Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWtower::ServiceExt::oneshotaxum::Router::routeaxum::Router::with_stateaxum::extract::Pathaxum::extract::Queryaxum::extract::Stateaxum::Jsonaxum::body::Bodyhttp_body_util::BodyExt::collectaxum::debug_handlerrust 1 MIT-0 · 2026-08-14
• @modelcontextprotocol/sdk 1.30.0: Test an MCP server in-process over InMemoryTransport, and find out which tool failures arrive as an error result and which as a JSON-RPC error Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWInMemoryTransport.createLinkedPairMcpServer.registerToolMcpServer.registerResourceClient.connectClient.callToolClient.listToolsClient.readResourceCallToolResult.isErrorMcpErrorErrorCodeLATEST_PROTOCOL_VERSIONDEFAULT_REQUEST_TIMEOUT_MSECnode 22 MIT-0 · 2026-08-14
• github.com/spf13/viper v1.21.0: Pin spf13/viper's configuration precedence order and the env, IsSet and case-folding traps around it, without reading a config file from disk Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWviper.Newviper.SetDefaultviper.Setviper.BindPFlagviper.AutomaticEnvviper.SetEnvPrefixviper.SetEnvKeyReplacerviper.BindEnvviper.AllowEmptyEnvviper.ReadConfigviper.AddRemoteProviderviper.RemoteConfigviper.ReadRemoteConfigviper.IsSetviper.Getviper.AllKeysviper.Unmarshalviper.ExperimentalBindStructgo 1.26 MIT-0 · 2026-08-14
• gorm.io/gorm v1.31.2: Run GORM on SQLite with CGO_ENABLED=0, past go-sqlite3's runtime stub error Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsqlite.Opengorm.Opengorm.DeletedAtgorm.ErrRecordNotFoundgorm.ErrDuplicatedKeygorm.Config.TranslateErrorsql.Opensql.DriversDB.PingDB.AutoMigrateDB.UpdatesDB.UpdateDB.SelectDB.FirstDB.FindDB.UnscopedDB.Creatego 1.26 MIT-0 · 2026-08-14
• rich 15.0.0: Render rich Console output to a string a test can assert on, and pin the escape codes, width, markup and highlighting that decide what the string holds Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWrich.console.ConsoleConsole.captureConsole.export_textforce_terminalcolor_systemrich.style.Stylerich.table.Tablerich.markup.escaperich.errors.MarkupError__rich____rich_console__highlightpython 3.12 MIT-0 · 2026-08-14
• freezegun 1.5.5: Freeze the clock in a Python test with freezegun so datetime, time.time and time.monotonic agree, and know what freeze_time cannot reach Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWfreezegun.freeze_timeFrozenDateTimeFactory.tickFrozenDateTimeFactory.move_totz_offsetdatetime.datetime.nowdatetime.datetime.utcnowdatetime.date.todaytime.timetime.monotonictime.perf_counterpython 3.12 MIT-0 · 2026-08-14
• superjson 2.2.6: See exactly what JSON.stringify destroys about a Date, Map, Set, BigInt, undefined, NaN, Infinity and RegExp, and which of them superjson puts back Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsuperjson.stringifysuperjson.parsesuperjson.serializesuperjson.deserializesuperjson.registerClasssuperjson.allowErrorPropsSuperJSONResult.metaJSON.stringifynode 22 MIT-0 · 2026-08-14
• bcryptjs 3.0.3: Hash and verify passwords on Node without a native module, choosing between node:crypto's scrypt and bcryptjs Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWcrypto.scryptSynccrypto.timingSafeEqualcrypto.randomBytesbcrypt.hashSyncbcrypt.compareSyncbcrypt.getSaltbcrypt.truncatesnode 22 MIT-0 · 2026-08-14
• json 2.9.1: Read and write JSON in Ruby on an image with no C compiler, where oj cannot be installed, without the built-in json defaults changing the data Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWJSON.parseJSON.generateJSON.pretty_generateJSON.dumpJSON.loadJSON::StateJSON::GeneratorErrorJSON::ParserErrorJSON::Ext::GeneratorObject#to_jsonruby 3 MIT-0 · 2026-08-14
• collection 1.19.1: Compare two Dart Lists, Maps or Sets by their contents, and use one as a cache key, when == on a collection is identity Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWListEqualityMapEqualitySetEqualityIterableEqualityDeepCollectionEqualityDeepCollectionEquality.unorderedDeepCollectionEquality.hashgroupByfirstWhereOrNullwhereNotNullHashMapdart 3 MIT-0 · 2026-08-14
• serde 1.0.229: serde deny_unknown_fields stops rejecting unknown keys once the struct is flattened, while the pair the documentation calls unsupported compiles and works in the ordinary case Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXDeserializedeny_unknown_fieldsflattenrename_allrename_all_fieldsdefaultskip_serializing_iftagrust 1 MIT-0 · 2026-08-14
• lightningcss 1.33.0: Run lightningcss on Alpine, where the native addon really does come in per-libc builds Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWlightningcss.transformdetectLibc.familySynclightningcss-linux-x64-musllightningcss-linux-x64-gnunode 22 MIT-0 · 2026-08-14
• tokio 1.53.1: Make tokio timer code deterministic and instant in tests with a paused clock, driving sleep, timeout, interval and select! on virtual time from a hand-built runtime rather than #[tokio::test] Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWtokio::runtime::Builder::start_pausedtokio::runtime::Builder::enable_timetokio::time::sleeptokio::time::timeouttokio::time::intervaltokio::time::advancetokio::time::Instanttokio::selectrust 1 MIT-0 · 2026-08-14
• polars 1.43.2: Port pandas DataFrame code to polars on Alpine, without the wheel surprise or the silently wrong answers Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONpolars.DataFramepolars.LazyFramepolars.colpolars.lenDataFrame.filterDataFrame.selectDataFrame.with_columnsDataFrame.with_row_indexDataFrame.group_byGroupBy.aggLazyFrame.collectLazyFrame.explainLazyFrame.collect_schemaExpr.map_elementsExpr.aliasSeries.is_nullSeries.is_nanSeries.fill_nullSeries.fill_nanSeries.eq_missingpolars.exceptions.ColumnNotFoundErrorpolars.exceptions.DuplicateErrorpolars.exceptions.PerformanceWarningDataFrame.vstackDataFrame.hstackDataFrame.extendDataFrame.insert_columnDataFrame.drop_in_placepython 3.12 MIT-0 · 2026-08-14
• nesbot/carbon 3.13.2: Choose between Carbon and CarbonImmutable, and get timezone conversion, DST arithmetic and a frozen test clock right Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWCarbon.CarbonCarbon.CarbonImmutableCarbonInterface::addDayCarbonInterface::avoidMutationCarbonInterface::setTimezoneCarbonInterface::shiftTimezoneCarbonInterface::diffInDaysCarbonInterface::diffInHoursCarbonInterface::startOfDayCarbon::parseCarbon::setTestNowCarbon::withTestNowphp 8 MIT-0 · 2026-08-14
• github.com/lmittmann/tint v1.2.0: Pin down the log/slog Handler contract that custom and third-party handlers have to honour Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWslog.NewJSONHandlerslog.HandlerOptions.ReplaceAttrslog.Logger.WithGroupslog.LogValuerslog.Handler.Enabledtint.NewTextHandlertint.NewHandlergo 1.26 MIT-0 · 2026-08-14
• attrs 26.1.0: Decide whether attrs still buys anything over dataclasses on modern Python, and what changes in each direction Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONattrs.defineattrs.fieldattrs.frozenattrs.evolveattrs.validators.instance_ofattrs.validators.disabledattrs.setters.NO_OPattrs.asdictattrs.exceptions.FrozenInstanceErrorattr.sdataclasses.dataclassdataclasses.replacedataclasses.FrozenInstanceErrorpython 3.12 MIT-0 · 2026-08-14
• zod 4.4.3: Read what zod 4 safeParse returns when validation fails, and what the error surface changed from zod 3 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsafeParseZodError.issuesZodIssue.receivedz.coerce.numberz.unionz.discriminatedUnionz.emailnode 22 MIT-0 · 2026-08-14
• drizzle-orm 0.45.2: Run drizzle-orm against an in-memory SQLite with no native module and no server, using node:sqlite as the driver Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsqliteTabledrizzle-orm/sqlite-proxydrizzle-orm/sqlite-proxy/migratornode:sqlite.DatabaseSyncStatementSync.setReturnArrayssqleqDrizzleQueryErrornode 22 MIT-0 · 2026-08-14
• github.com/spf13/cobra v1.10.2: Drive a spf13/cobra command tree from a test with SetArgs and SetOut, without a subprocess, and tell the failure modes of Execute apart Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWCommand.SetArgsCommand.ExecuteCommand.SetOutCommand.RunECommand.PersistentFlagsCommand.MarkFlagRequiredCommand.MarkPersistentFlagRequiredCommand.InheritedFlagsCommand.LocalFlagsCommand.SilenceUsageCommand.SilenceErrorscobra.ArbitraryArgscobra.NoArgsgo 1.26 MIT-0 · 2026-08-14
• bun 1.3.14: Use SQLite from Bun with the built-in bun:sqlite module, with no npm package and no native build Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWbun:sqlite.DatabaseDatabase.queryDatabase.prepareStatement.getStatement.allStatement.runStatement.safeIntegersSQLiteErrorbun 1 MIT-0 · 2026-08-14
• faraday 2.11.0: Test Faraday code against stubbed HTTP with no network, and work out which parts of Faraday 2 still need an extra gem Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWFaraday::Adapter::TestFaraday::Adapter::Test::StubsFaraday::Response::JsonFaraday::Response::RaiseErrorFaraday::ServerErrorFaraday::ResourceNotFoundruby 3 MIT-0 · 2026-08-14
• guzzlehttp/guzzle 8.0.2: Test code that calls an HTTP API with Guzzle, with no network and no monkeypatching Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWGuzzleHttp.Handler.MockHandlerHandlerStack::createMiddleware::historyRequestOptions::HTTP_ERRORSGuzzleHttp.Exception.RequestExceptionGuzzleHttp.Exception.ResponseExceptionphp 8 MIT-0 · 2026-08-14
• vitest 4.1.10: Run a real vitest suite with no network, and know which of its matchers disagree with each other Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWexpect.toEqualexpect.toStrictEqualexpect.rejectsexpect.toThrowvi.useFakeTimersvi.advanceTimersByTimevi.advanceTimersByTimeAsyncstartVitestnode 22 MIT-0 · 2026-08-14
• plug 1.20.3: Test a Plug router end to end with Plug.Test, with no HTTP server, no socket and no network Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWPlug.Test.connPlug.Test.sent_respPlug.RouterPlug.ParsersPlug.Conn.send_respPlug.Conn.put_resp_content_typePlug.Conn.AlreadySentErrorPlug.Parsers.UnsupportedMediaTypeErrorPlug.Conn.Unfetchedelixir 1 MIT-0 · 2026-08-14
• http 1.6.0: Test code that calls an HTTP API with package:http using MockClient, with no network, and see what the client actually sends and decodes Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWMockClientClient.getClient.postClient.readResponse.bodyResponse.bodyBytesRequest.bodyFieldsMultipartRequestClientExceptiondart 3 MIT-0 · 2026-08-14
• clap 4.6.6: Define and test a clap 4 derive CLI across the #[clap] to #[command] and #[arg] attribute split, checking outcomes with try_parse_from and ErrorKind instead of a process Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWParser::try_parse_fromArgAction::CountCommand::buildErrorKind::UnknownArgumentErrorKind::MissingRequiredArgumentErrorKind::DisplayHelpValueEnumCommandFactory::commandrust 1 MIT-0 · 2026-08-14
• anyhow 1.0.104: Handle errors in a Rust application with anyhow: attach context, keep the cause chain, log it without losing the cause, and recover the concrete error Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWanyhow::Context::contextanyhow::Context::with_contextanyhow::Error::chainanyhow::Error::root_causeanyhow::Error::downcast_refanyhow::bailanyhow::ensurerust 1 MIT-0 · 2026-08-14
• orjson 3.11.9: Swap json for orjson on Alpine, without the wheel surprise or the silent output changes Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONorjson.dumpsorjson.loadsorjson.OPT_SORT_KEYSorjson.OPT_NON_STR_KEYSorjson.OPT_INDENT_2orjson.OPT_UTC_Zorjson.JSONEncodeErrororjson.JSONDecodeErrorjson.dumpspython 3.12 MIT-0 · 2026-08-14
• fastapi 0.141.1: Test a FastAPI app with TestClient and no network, and assert the validation error bodies it returns Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWfastapi.testclient.TestClientfastapi.HTTPExceptionresponse_modellifespanpydantic.BaseModelhttpx2.HTTPStatusErrorstarlette.exceptions.StarletteDeprecationWarningpython 3.12 MIT-0 · 2026-08-14
• github.com/shopspring/decimal v1.4.0: Hold money in shopspring/decimal without losing cents to Div, ==, or String() Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWdecimal.NewFromStringdecimal.NewFromFloatdecimal.DivisionPrecisionDecimal.EqualDecimal.QuoRemDecimal.RoundBankDecimal.StringFixedgo 1.26 MIT-0 · 2026-08-14
• jose 6.2.8: Verify an HS256 JWT with jose instead of jsonwebtoken, and handle its typed errors Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWSignJWTjwtVerifyjose.errorsUnsecuredJWTdecodeJwtnode 22 MIT-0 · 2026-08-14
• github.com/stretchr/testify v1.11.1: Stop a failed testify assertion from crashing the next line, and know when to use require instead of assert Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXassert.TestingTrequire.TestingTrequire.NotNilassert.NotNilassert.Equalassert.ObjectsAreEqualassert.EqualValuesassert.ElementsMatchgo 1.26 MIT-0 · 2026-08-14
• express 5.1.0: Serve JSON with Express 5 on Bun, including a route parameter, a JSON body, a thrown handler and a 404 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWexpressexpress.jsonApplication.listenbun 1 MIT-0 · 2026-08-14
• esbuild 0.25.12: Run esbuild on Alpine, where the usual advice is to install a musl-specific build Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWesbuild.transform@esbuild/linux-x64node 22 MIT-0 · 2026-08-14
• github.com/go-playground/validator/v10 v10.28.0: Stop go-playground/validator rejecting a supplied zero value as a missing required field Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXvalidator.NewValidate.Structvalidator.ValidationErrorsgo 1.26 MIT-0 · 2026-08-14
• github.com/golang-jwt/jwt/v5 v5.3.0: Verify a JWT with golang-jwt v5 and tell an expired token apart from a forged one Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONjwt.ParseWithClaimsjwt.RegisteredClaimsjwt.ErrTokenExpiredjwt.WithIssuergo 1.26 MIT-0 · 2026-08-14
• sqlalchemy 2.0.44: Move a SQLAlchemy 1.4 query to the 2.0 select API and get entities back instead of Row tuples Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONSession.executeSession.scalarsselectsqlalchemy.textDeclarativeBasepython 3.12 MIT-0 · 2026-08-14
• httpx 0.28.1: Test code that calls an HTTP API with httpx, with no network and no monkeypatching Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWhttpx.MockTransporthttpx.ClientResponse.raise_for_statushttpx.WSGITransportpython 3.12 MIT-0 · 2026-08-14
• monolog/monolog 3.9.0: Upgrade a Monolog handler from 2 to 3 when records became LogRecord objects Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONMonolog.LogRecordMonolog.LevelLogger::WARNINGTestHandler::hasWarningThatContainsphp 8 MIT-0 · 2026-08-14
• rack 3.2.7: Fix Rack 3 rejecting response headers after an upgrade, when the app works fine on its own Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONRack::LintRack::ResponseRack::Headersruby 3 MIT-0 · 2026-08-14
• decimal 3.1.1: Compare Decimal values in Elixir when == reports equal amounts as different Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXDecimal.equal?Decimal.compareDecimal.from_floatDecimal.normalizeelixir 1 MIT-0 · 2026-08-14
• intl 0.20.2: Format dates in a non-English locale with intl, and parse a date without silently accepting an invalid one Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWDateFormatinitializeDateFormattingNumberFormatDateFormat.parseStrictdart 3 MIT-0 · 2026-08-14
• jason 1.4.4: Decide whether the built-in JSON module in Elixir 1.18+ can replace Jason, and migrate without breaking rescue clauses Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONJSON.encode!JSON.decodeJSON.encode_to_iodata!Jason.decode!Jason.DecodeErrorJSON.DecodeErrorelixir 1 MIT-0 · 2026-08-14
• csv 3.3.5: Fix LoadError for csv or base64 after a Ruby upgrade, where they used to be built Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXCSV.parseBase64.strict_encode64ruby 3 MIT-0 · 2026-08-14
• crypto 3.0.7: Hash and HMAC in Dart with package:crypto, and compare the result correctly Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsha256.convertHmacDigest.toStringdart 3 MIT-0 · 2026-08-14
• nanoid 6.0.1: Import an npm package from Deno, where a bare specifier does not resolve Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXnanoidnode:crypto.createHashDeno.permissionsdeno 2 MIT-0 · 2026-08-14
• nanoid 6.0.1: Run an npm package and node: builtins on Bun instead of Node Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWnanoidnode:crypto.createHashnode:fs/promises.readFilebun 1 MIT-0 · 2026-08-14
• thiserror 2.0.20: Define a library error type with thiserror and keep the source chain intact Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWthiserror::ErrorsourceFromrust 1 MIT-0 · 2026-08-13
• regex 1.13.1: Extract named capture groups with the regex crate, which has no backtracking Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWRegex::newcapturesnamerust 1 MIT-0 · 2026-08-13
• github.com/google/go-cmp v0.7.0: Compare structs in tests where reflect.DeepEqual is wrong or unusable Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXcmp.Diffcmp.Equalcmpopts.IgnoreFieldsgo 1.26 MIT-0 · 2026-08-13
• github.com/go-chi/chi/v5 v5.3.1: Read URL parameters and nest routers with go-chi Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWchi.NewRouterchi.URLParamRoutego 1.26 MIT-0 · 2026-08-13
• click 8.4.2: Test a click command without spawning a subprocess Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWclick.commandclick.optionCliRunnerpython 3.12 MIT-0 · 2026-08-13
• tenacity 9.1.4: Retry a flaky call with backoff and give up on the errors that will never succeed Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWretrystop_after_attemptwait_fixedretry_if_exception_typepython 3.12 MIT-0 · 2026-08-13
• jinja2 3.1.6: Stop jinja2 rendering user input as raw HTML — autoescape is OFF by default Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXEnvironmentautoescapeMarkuppython 3.12 MIT-0 · 2026-08-13
• fs-extra 11.4.0: Read, write and copy JSON files without hand-rolling mkdir and parse Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWfs.outputJsonfs.readJsonfs.copyfs.pathExistsnode 22 MIT-0 · 2026-08-13
• picomatch 4.0.5: Exclude files from a glob match when adding a "!pattern" to the array does nothing Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXpicomatchignorenode 22 MIT-0 · 2026-08-13
• es-toolkit 1.50.0: Replace lodash helpers with es-toolkit without changing behaviour Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONchunkgroupBydebouncepicknode 22 MIT-0 · 2026-08-13
• fastify 5.12.0: Validate a request body with fastify's built-in JSON schema Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWfastifyroute schemaapp.injectnode 22 MIT-0 · 2026-08-13
• hono 4.13.2: Serve JSON routes with hono and read typed path parameters Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWHonoc.req.paramc.jsonnode 22 MIT-0 · 2026-08-13
• marked 18.0.9: Render Markdown to HTML and understand what marked does not sanitize Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWmarked.parsenode 22 MIT-0 · 2026-08-13
• qs 6.15.3: Parse and build nested query strings that URLSearchParams cannot express Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWqs.parseqs.stringifynode 22 MIT-0 · 2026-08-13
• decimal.js 10.6.0: Add and compare money without floating-point rounding errors Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXDecimaltoFixedequalsnode 22 MIT-0 · 2026-08-13
• luxon 3.7.2: Do timezone-aware date math without the day drifting Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXDateTime.fromISOsetZonediffnode 22 MIT-0 · 2026-08-13
• @tailwindcss/postcss 4.3.3: Generate CSS with tailwind v4, which replaced tailwind.config.js with CSS-first config Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATION@import tailwindcss@themenode 22 MIT-0 · 2026-08-13
• eslint 10.8.1: Lint code with an eslint flat config after .eslintrc stopped being read Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONESLintlintTextnode 22 MIT-0 · 2026-08-13
• typescript 5.9.3: Fix ts.createProgram becoming undefined after upgrading to typescript 7 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONts.createProgramts.getPreEmitDiagnosticsts.ScriptTargetnode 22 MIT-0 · 2026-08-13
• react 19.2.8: Choose between renderToString and renderToStaticMarkup without breaking hydration Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXrenderToStringrenderToStaticMarkupcreateElementnode 22 MIT-0 · 2026-08-13
• serde_json 1.0.151: Serialize and deserialize a struct as JSON with serde in Rust Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWserde_json::to_stringserde_json::from_strDeserializerust 1 MIT-0 · 2026-08-13
• semver 1.0.28: Check a version against a caret requirement with the semver crate in Rust Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWVersion::parseVersionReq::matchesrust 1 MIT-0 · 2026-08-13
• golang.org/x/sync v0.22.0: Run concurrent work with a bound and the first error with errgroup Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWerrgroup.WithContextGroup.SetLimitGroup.Waitgo 1.26 MIT-0 · 2026-08-13
• github.com/google/uuid v1.6.0: Generate, parse and validate a UUID in Go with google/uuid Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWuuid.Newuuid.Parseuuid.Validatego 1.26 MIT-0 · 2026-08-13
• gopkg.in/yaml.v3 v3.0.1: Marshal and unmarshal YAML config in Go with yaml.v3 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWyaml.Unmarshalyaml.Marshalgo 1.26 MIT-0 · 2026-08-13
• pydantic 2.13.4: Replace pydantic v1 parse_obj/dict with the v2 model_validate/model_dump API Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. MIGRATIONBaseModel.model_validateBaseModel.model_dumpValidationErrorpython 3.12 MIT-0 · 2026-08-13
• python-dateutil 2.9.0.post0: Parse an ambiguous date string in Python without silently getting the wrong day Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXdateutil.parser.parserelativedeltapython 3.12 MIT-0 · 2026-08-13
• packaging 26.3: Check whether a version satisfies a requirement specifier in Python Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWSpecifierSet.containsVersionpython 3.12 MIT-0 · 2026-08-13
• yaml 2.9.0: Parse and re-emit YAML with the yaml package without losing types Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWYAML.parseYAML.stringifynode 22 MIT-0 · 2026-08-13
• ws 8.21.3: Run a WebSocket server and client round trip with ws Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWWebSocketServerWebSocketnode 22 MIT-0 · 2026-08-13
• uuid 14.0.1: Import uuid v9+ without the removed default export breaking the build Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXv4validateversionnode 22 MIT-0 · 2026-08-13
• undici 8.10.0: POST JSON and read the parsed reply with undici.request Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWundici.requestbody.jsonnode 22 MIT-0 · 2026-08-13
• semver 7.8.5: Check whether an installed version satisfies a semver range Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWsemver.satisfiessemver.coercesemver.majornode 22 MIT-0 · 2026-08-13
• p-limit 7.3.1: Cap how many async tasks run at once with p-limit Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpLimitnode 22 MIT-0 · 2026-08-13
• pino 10.3.1: Send pino output to your own stream and read the structured fields back Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWpinonode 22 MIT-0 · 2026-08-13
• nanoid 6.0.1: Generate URL-safe ids with nanoid, including a custom alphabet Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWnanoidcustomAlphabetnode 22 MIT-0 · 2026-08-13
• mime 4.1.0: Look up a MIME type from a filename with mime v4 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWmime.getTypemime.getExtensionnode 22 MIT-0 · 2026-08-13
• lodash-es 4.18.1: Import single lodash functions from lodash-es in an ES module Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWchunkgroupBypicknode 22 MIT-0 · 2026-08-13
• express 5.2.1: Make a rejected async route handler reach the error middleware instead of hanging the request Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXexpressapp.getapp.usenode 22 MIT-0 · 2026-08-13
• date-fns 4.4.0: Format and parse an ISO date with date-fns without shifting the day Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWparseISOformatdifferenceInCalendarDaysnode 22 MIT-0 · 2026-08-13
• commander 15.0.0: Parse command line options with commander without touching process.argv Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWCommandprogram.optionprogram.parsenode 22 MIT-0 · 2026-08-13
• chalk 6.0.0: Make chalk emit colour codes when output is piped instead of silently producing plain text Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXChalknode 22 MIT-0 · 2026-08-13
• axios 1.19.0: Tell an axios timeout apart from other request failures instead of catching a generic error Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXaxios.getnode 22 MIT-0 · 2026-08-13
• axios 1.19.0: Upload a file with axios as multipart/form-data without the form-data package Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWaxios.postFormData.appendnode 22 MIT-0 · 2026-08-13
• ajv 8.20.0: Fix ajv throwing "strict mode: unknown keyword" when compiling an existing JSON Schema Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXAjvajv.compilenode 22 MIT-0 · 2026-08-13
• dotenv 16.6.1: process.env is undefined in an ESM module even though dotenv.config() ran and .env exists Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXdotenv.configdotenv/confignode 22 MIT-0 · 2026-08-13
• express 5.1.0: Fix express 4 routes that throw "Missing parameter name" or "Unexpected ?" at startup after upgrading to express 5 Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXexpressapp.getreq.paramsreq.querynode 22 MIT-0 · 2026-08-13
• p-limit 7.3.1: require() an ESM-only npm package from CommonJS without ERR_REQUIRE_ESM or ERR_REQUIRE_ASYNC_MODULE Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXYoga.Node.createimport()pLimitrequirenode 22 MIT-0 · 2026-08-13
• lodash 4.18.1: Import a CommonJS-only package from an ES module without the named-export or require-is-not-defined errors Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. FIXcreateRequireimport.meta.urllodash.chunklodash.groupBylodash.mergerequire.resolvenode 22 MIT-0 · 2026-08-13
• zod 4.1.12: Validate untrusted input with a zod schema and read the error shape Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWz.objectz.stringsafeParsenode 22 MIT-0 · 2026-08-13
• dayjs 1.11.19: Parse and format a UTC timestamp with dayjs without a timezone surprise Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWdayjsdayjs.extendutcnode 22 MIT-0 · 2026-08-13
• express 5.1.0: Serve a JSON POST route with express and its built-in body parser Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWexpressexpress.jsonapp.postapp.listennode 22 MIT-0 · 2026-08-13
• axios 1.12.2: POST a JSON body with axios and read the parsed response Built ? This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWaxios.postnode 22 MIT-0 · 2026-08-13