{"adoption": {"forks": 52, "observed_at": "2026-08-28T04:04:38.586752+00:00", "stars": 1408}, "canonical_url": "https://ross.abutalabs.com/products/arc-swap", "card": {"archived": false, "artifact_type": "library", "description": "Support atomic operations on Arc itself", "domain": ["developer-tools"], "enriched": true, "function": ["concurrency"], "health_score": 74, "homepage": null, "language": "Rust", "license": "Apache-2.0", "license_family": "permissive", "maturity": "stable", "member_repos": ["vorner/arc-swap"], "name": "vorner/arc-swap", "platform": ["rust", "cross-platform"], "pushed_at": "2026-06-28T17:54:52+00:00", "repo": "vorner/arc-swap", "stars": 1408, "tags": ["arc", "atomic", "lock-free", "read-mostly", "shared-state", "algorithms"], "topics": [], "urls": [], "use_cases": ["atomically swap shared configuration at runtime", "read shared state without locking in Rust", "replace RwLock<Arc<T>> with faster read-mostly synchronization", "hot-reload immutable data structures concurrently", "share a pointer across threads with atomic updates"], "what_it_is": "A Rust library providing atomic operations on Arc pointers, effectively an Atomic<Arc<T>>. It is optimized for read-mostly, write-seldom scenarios with consistent performance, similar to RwLock<Arc<T>> but lock-free for readers.", "when_to_avoid": ["you need frequent writes with complex in-place mutation", "you can simply use RwLock or Mutex without performance concerns", "you need atomics on non-Arc types"], "when_to_choose": ["you need lock-free reads of shared Arc data with occasional writes", "you want consistent, predictable performance for read-heavy workloads", "you need to atomically swap configuration or cached shared objects"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/arc-swap", "repo": "vorner/arc-swap", "role": "main", "score": 72}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:04:38.586752+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T04:38:36.847385+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "ac6a84fa980c519da19dee679a728e4c34b2f9ff938de99452e797a464bfdd24", "fetched_at": "2026-08-28T04:04:38.586752+00:00", "kind": "readme", "missing": false, "url": "https://github.com/vorner/arc-swap"}, {"content_hash": "18669e19c360a154e1bb84ed66152f1d3571b47ead60be2f067bace120875d1c", "fetched_at": "2026-08-29T11:52:06.242949+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/arc-swap"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 89, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3078, "days_push": 66, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 72, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}