{"adoption": {"forks": 78, "observed_at": "2026-08-28T04:04:00.446514+00:00", "stars": 1213}, "canonical_url": "https://ross.abutalabs.com/products/observer-util", "card": {"archived": false, "artifact_type": "library", "description": "Transparent reactivity with 100% language coverage. Made with ❤️ and ES6 Proxies.", "domain": ["frontend", "web-development"], "enriched": true, "function": ["state-management"], "health_score": 20, "homepage": null, "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["nx-js/observer-util"], "name": "nx-js/observer-util", "platform": ["browser"], "pushed_at": "2023-08-06T18:54:57+00:00", "repo": "nx-js/observer-util", "stars": 1213, "tags": ["es6-proxies", "observables", "data-binding", "reactivity", "framework-agnostic", "reactive-programming", "javascript", "nodejs"], "topics": ["reactive-programming", "data-binding", "proxy", "observable", "javascript", "es6-proxies"], "urls": [], "use_cases": ["build a reactive state layer without a framework", "auto-update UI when plain JS state changes", "replace setState-style boilerplate with transparent observables", "react to dynamic property additions and deletions", "integrate reactivity into a custom frontend framework"], "what_it_is": "A tiny JavaScript library providing transparent reactivity using ES6 Proxies, with observables and automatic reactions that re-run when observed state changes. It is framework-independent and supports 100% of the JavaScript language, including dynamic properties and delete.", "when_to_avoid": ["you need to support browsers or environments without ES6 Proxy support", "you already use a framework with a built-in reactivity system", "you need a full state management solution with devtools and ecosystem"], "when_to_choose": ["you want framework-agnostic reactivity with full JS language coverage", "you need a tiny, dependency-free observable library", "your target environments support ES6 Proxies"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/observer-util", "repo": "nx-js/observer-util", "role": "main", "score": 23}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:04:00.446514+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T06:17:56.921641+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "d23143c60ddfcb16303cb2440bf119bb5090cc7ecfde4749b4c13923b9ab7968", "fetched_at": "2026-08-28T04:04:00.446514+00:00", "kind": "readme", "missing": false, "url": "https://github.com/nx-js/observer-util"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3745, "days_push": 1123, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 23, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}