{"adoption": {"forks": 102, "observed_at": "2026-08-28T04:07:37.745365+00:00", "stars": 3009}, "canonical_url": "https://ross.abutalabs.com/products/stampit", "card": {"archived": false, "artifact_type": "library", "description": "OOP is better with stamps: Composable object factories.", "domain": ["developer-tools", "web-development"], "enriched": true, "function": ["developer-tools"], "health_score": 95, "homepage": "https://stampit.js.org", "language": "TypeScript", "license": "MIT", "license_family": "permissive", "maturity": "stable", "member_repos": ["stampit-org/stampit"], "name": "stampit-org/stampit", "platform": ["browser"], "pushed_at": "2026-07-17T04:05:22+00:00", "repo": "stampit-org/stampit", "stars": 3009, "tags": ["oop", "object-composition", "factory-functions", "stamps", "mixins", "prototypal-inheritance", "dependency-injection", "composition-over-inheritance", "typescript", "esm", "nodejs"], "topics": ["javascript", "oop", "stamps", "object-oriented", "dependency-injection", "factory", "class", "composition"], "urls": [], "use_cases": ["compose objects from reusable behaviors in javascript", "replace class inheritance with object composition", "create factory functions with mixin-like behavior merging", "implement multiple inheritance in javascript without prototype chains", "do dependency injection through composable factories", "share stateful behavior between browser and node code"], "what_it_is": "Stampit is a tiny (1.3KB gzipped) JavaScript/TypeScript library for building composable object factories called 'stamps', which merge methods, properties, deep properties, initializers, and statics via a standardized composition algorithm. It serves as a flexible alternative to ES6 classes, combining delegation, concatenation, and functional prototypal inheritance without class inheritance chains.", "when_to_avoid": ["Your codebase is firmly TypeScript class-based and you don't need runtime behavior composition", "You expect framework-level features like reactive state, rendering, or lifecycle hooks beyond initializers", "Your team is unwilling to learn the stamps specification and its composition semantics"], "when_to_choose": ["You want composition over inheritance with a standardized, well-specified algorithm and a <2KB footprint", "You need to merge methods, properties, and initializers from many behaviors without class-chain coupling", "You need a single module that works in browsers, Node, and bundlers with both ESM and CJS"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/stampit", "repo": "stampit-org/stampit", "role": "main", "score": 85}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.745365+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:47:23.017770+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d171dacb5b4729ec591ea63811d9793483f380d0dc1dad0da5b2fc46db7e87db", "fetched_at": "2026-08-28T04:07:37.745365+00:00", "kind": "readme", "missing": false, "url": "https://github.com/stampit-org/stampit"}, {"content_hash": "eeccd7eb72b009412075dc9c3d1fccbd018760c0c4c3da531a7d0d0eee9752a2", "fetched_at": "2026-08-29T09:45:52.776874+00:00", "kind": "homepage", "missing": false, "url": "https://stampit.js.org"}, {"content_hash": "74bf1bc1c781efd21f598ce0817cc3889a8f5215b63e86c86c18965ea0943ef7", "fetched_at": "2026-08-29T09:45:52.786268+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/installation"}, {"content_hash": "001e5732bb35d24408d16c7dcfe9f0b00c9d9a1614455ceb968b05d5bf76f204", "fetched_at": "2026-08-29T09:45:52.791244+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/stampit"}, {"content_hash": "2990eacf65962b997a3a4bc37e8ceea63be15e9a3ab5bcd38cf54ae15b226369", "fetched_at": "2026-08-29T09:45:52.789114+00:00", "kind": "site_page", "missing": false, "url": "https://stampit.js.org/essentials/faq"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 93, "longevity": 100, "rhythm": 67}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4952, "days_push": 47, "days_rel": 62, "gap_med": 134.5, "n_releases_24m": 3}, "score": 85, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}