API for combining call site modifiers

Opinionated REST client helpers for APIs that should feel small and obvious at the call site.

trace an optional prop across every JSX call site and tell whether its `?` is justified

Adapter shapes (per-tool governedTool and dispatcher-style governedExecutor) for wiring toolgovern into an open-multi-agent-style tool-executor call site.

Drop-in AI cost tracking for Node.js and TypeScript. Auto-instruments OpenAI, Anthropic, and Gemini at the class level, with zero code at each call site.

GCPM-style inline footnote plugin used by VFM. Emits `<span class="footnote">` elements at the call site, with duplicate references rendered as `<a class="footnote-duplicated-call">`.

@youneed/logger plugin: stamp each record with the call site (file:line:column) it was logged from.

Dev-mode forced-reflow detector. Patches layout-triggering getters, tracks DOM writes, flags read-after-write within the same task, attributes to call site. The #1 silent frame killer, made visible.

ESLint rule that flags non-exported functions called from exactly one place, so they can be inlined at the call site.

The fleet's provider-agnostic media-storage facade — one createMedia() API (upload · signedUrl · delete) over swappable storage providers, so a later move between providers never touches a call-site. Ships with a Cloudflare R2 provider (S3-compatible, Sig

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

Robustly `.call.bind()` a function

Minimal lightweight logging for JavaScript, adding reliable log level methods to any available console.log methods

Prisma-style, codegen-driven GraphQL client. No .gql files — your call site is the query.

Utility for working with stack traces

Nuxt module providing defineFetch and defineAsyncData factory composables with per-call-site key isolation, interceptor composition, and context restoration after await.

Winston-based logger and console helper with environment-aware configuration, sensitive data masking, daily log rotation, and call-site preserving console bindings.

Proof-carrying admission for third-party agent apps. The dev CLI: run the discriminator on your own code; verdict in milliseconds with the exact seed × payload × call site that caused any catch.

ES module for the Google Analytics Global Site Tag.

Read your TypeScript types at runtime. Bun-native. Zero magic at the call site.