{"schema_version":"onlylabs.public_signal.v1","title":"Cloudflare (Workers AI) Repo: cloudflare/cardinality-estimator","description":"Cloudflare (Workers AI) repo signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3","json_url":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3/signal.json","generated_at":"2026-06-11T04:07:27.585246+00:00","org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud","category_label":"Neocloud","dossier_url":"https://onlylabs.fyi/labs/cloudflare","dossier_json_url":"https://onlylabs.fyi/labs/cloudflare/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3","signal_json":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3/signal.json","source":"https://github.com/cloudflare/cardinality-estimator","lab_dossier":"https://onlylabs.fyi/labs/cloudflare","lab_dossier_json":"https://onlylabs.fyi/labs/cloudflare/dossier.json","analysis":"https://onlylabs.fyi/analysis/cloudflare","analysis_json":"https://onlylabs.fyi/analysis/cloudflare/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/cloudflare/evidence.json","category":"https://onlylabs.fyi/neoclouds","category_json":"https://onlylabs.fyi/neoclouds.json","category_feed":"https://onlylabs.fyi/neoclouds/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json?category=neocloud","topic":null,"topic_signals_json":null,"topic_feed":null,"data_business":null},"answer_pack":{"answer":"Cloudflare (Workers AI) published cloudflare/cardinality-estimator (Rust). This repository signal exposes tooling, eval, infrastructure, or model-adjacent work before it may appear in a launch post. 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for this category, interpret the repository as source-grounded category strategy evidence.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3/signal.json","required":true},{"label":"source","url":"https://github.com/cloudflare/cardinality-estimator","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/cloudflare/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/cloudflare/evidence.json","required":true},{"label":"topic_signals_json","url":null,"required":false},{"label":"data_radar_json","url":null,"required":false}],"expected_output":["one-paragraph source-grounded interpretation","category-specific implication","confidence and missing evidence","recommended next source to inspect"],"prompt_seed":"Using only the linked onlylabs JSON, captured source context, and cited evidence, analyze Cloudflare (Workers AI)'s repo signal \"cloudflare/cardinality-estimator\" for neocloud strategy."},"semantic_triples":[{"subject":"Cloudflare (Workers AI)","predicate":"published repo","object":"cloudflare/cardinality-estimator","text":"Cloudflare (Workers AI) published repo cloudflare/cardinality-estimator."},{"subject":"cloudflare/cardinality-estimator","predicate":"is classified as","object":"repo signal","text":"cloudflare/cardinality-estimator is classified as repo signal."},{"subject":"cloudflare/cardinality-estimator","predicate":"belongs to","object":"repos desk","text":"cloudflare/cardinality-estimator belongs to repos desk."},{"subject":"cloudflare/cardinality-estimator","predicate":"has context","object":"Rust","text":"cloudflare/cardinality-estimator has context Rust."},{"subject":"cloudflare/cardinality-estimator","predicate":"has evidence coverage","object":"1 captured evidence page","text":"cloudflare/cardinality-estimator has evidence coverage 1 captured evidence page."},{"subject":"cloudflare/cardinality-estimator","predicate":"has captured page count","object":"1","text":"cloudflare/cardinality-estimator has captured page count 1."},{"subject":"cloudflare/cardinality-estimator","predicate":"has readable page count","object":"1","text":"cloudflare/cardinality-estimator has readable page count 1."},{"subject":"cloudflare/cardinality-estimator","predicate":"has related signal count","object":"6","text":"cloudflare/cardinality-estimator has related signal count 6."},{"subject":"cloudflare/cardinality-estimator","predicate":"has analysis playbook objective","object":"Turn new repository signals into early evidence of tooling, eval, infrastructure, model-adjacent, or product work before it appears in polished launch channels.","text":"cloudflare/cardinality-estimator has analysis playbook objective Turn new repository signals into early evidence of tooling, eval, infrastructure, model-adjacent, or product work before it appears in polished launch channels.."},{"subject":"cloudflare/cardinality-estimator","predicate":"has source host","object":"github.com","text":"cloudflare/cardinality-estimator has source host github.com."},{"subject":"cloudflare/cardinality-estimator","predicate":"has lab","object":"Cloudflare (Workers AI)","text":"cloudflare/cardinality-estimator has lab Cloudflare (Workers AI)."},{"subject":"cloudflare/cardinality-estimator","predicate":"has signal desk","object":"repos","text":"cloudflare/cardinality-estimator has signal desk repos."},{"subject":"cloudflare/cardinality-estimator","predicate":"has source host","object":"github.com","text":"cloudflare/cardinality-estimator has source host github.com."},{"subject":"cloudflare/cardinality-estimator","predicate":"has repository","object":"cloudflare/cardinality-estimator","text":"cloudflare/cardinality-estimator has repository cloudflare/cardinality-estimator."},{"subject":"cloudflare/cardinality-estimator","predicate":"has language","object":"Rust","text":"cloudflare/cardinality-estimator has language Rust."},{"subject":"cloudflare/cardinality-estimator","predicate":"has stars","object":"33","text":"cloudflare/cardinality-estimator has stars 33."},{"subject":"cloudflare/cardinality-estimator","predicate":"has watch term","object":"Eval methodology","text":"cloudflare/cardinality-estimator has watch term Eval methodology."},{"subject":"cloudflare/cardinality-estimator","predicate":"has watch term","object":"Data pipeline","text":"cloudflare/cardinality-estimator has watch term Data pipeline."}]},"intelligence":{"signal_desk":"repos","answer":"Cloudflare (Workers AI) published cloudflare/cardinality-estimator (Rust). This repository signal exposes tooling, eval, infrastructure, or model-adjacent work before it may appear in a launch post. High-signal details: repo cloudflare/cardinality-estimator · language Rust. onlylabs links this event to 1 captured evidence page and 6 related repo signals.","semantic_triples":[{"subject":"Cloudflare (Workers AI)","predicate":"published repo","object":"cloudflare/cardinality-estimator","text":"Cloudflare (Workers AI) published repo cloudflare/cardinality-estimator."},{"subject":"cloudflare/cardinality-estimator","predicate":"is classified as","object":"repo signal","text":"cloudflare/cardinality-estimator is classified as repo signal."},{"subject":"cloudflare/cardinality-estimator","predicate":"belongs to","object":"repos desk","text":"cloudflare/cardinality-estimator belongs to repos desk."},{"subject":"cloudflare/cardinality-estimator","predicate":"has context","object":"Rust","text":"cloudflare/cardinality-estimator has context Rust."},{"subject":"cloudflare/cardinality-estimator","predicate":"has evidence coverage","object":"1 captured evidence page","text":"cloudflare/cardinality-estimator has evidence coverage 1 captured evidence page."}]},"signal":{"id":"59aea4c7-7570-496c-85c4-950e09047ec3","url":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3","json_url":"https://onlylabs.fyi/signals/59aea4c7-7570-496c-85c4-950e09047ec3/signal.json","source_url":"https://github.com/cloudflare/cardinality-estimator","title":"cloudflare/cardinality-estimator","summary":"Cloudflare (Workers AI) published a new repository. onlylabs watches repos for tooling, eval, infra, and model-adjacent work.","context":"Rust","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2024-04-25T19:17:07+00:00","first_seen_at":"2026-06-06T01:49:58.201724+00:00","date_source":"source","evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://github.com/cloudflare/cardinality-estimator"]},"facets":{"repo":"cloudflare/cardinality-estimator","language":"Rust"},"traction":{"github_stars":33,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"url":"https://github.com/cloudflare/cardinality-estimator","final_url":"https://github.com/cloudflare/cardinality-estimator","title":"cloudflare/cardinality-estimator repository metadata","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-11T04:07:27.585246+00:00","bytes":21290,"raw_path":"2630237fdae4ce41122206770b53f41208cd5e48c947143ae7dd727841c6ba98.json","content_hash":"b4aca6bcb733b88c3b8c425865bf8b156d4bd6a940b57b7a1f8154e5992a234d","excerpt_chars":1200,"truncated":true,"excerpt":"cloudflare/cardinality-estimator Description: A crate for estimating the cardinality of distinct elements in a stream or dataset. Language: Rust License: NOASSERTION Stars: 33 Forks: 6 Open issues: 2 Created: 2024-04-25T19:17:07Z Pushed: 2026-04-28T13:10:17Z Default branch: main Fork: no Archived: no README: cardinality-estimator ![build](https://img.shields.io/github/actions/workflow/status/cloudflare/cardinality-estimator/ci.yml?branch=main) [![docs.rs](https://docs.rs/cardinality-estimator/badge.svg)](https://docs.rs/cardinality-estimator) [![crates.io](https://img.shields.io/crates/v/cardinality-estimator.svg)](https://crates.io/crates/cardinality-estimator) [![License](https://img.shields.io/badge/license-Apache%202.0-blue)](LICENSE) `cardinality-estimator` is a Rust crate designed to estimate the number of distinct elements in a stream or dataset in an efficient manner. This library uses HyperLogLog++ with an optimized low memory footprint and high accuracy approach, suitable for large-scale data analysis tasks. We're using `cardinality-estimator` for large-scale machine learning, computing cardinality features across multiple dimensions of the request. Overview Our..."},"evidence_pages":[{"url":"https://github.com/cloudflare/cardinality-estimator","final_url":"https://github.com/cloudflare/cardinality-estimator","title":"cloudflare/cardinality-estimator repository metadata","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-11T04:07:27.585246+00:00","bytes":21290,"raw_path":"2630237fdae4ce41122206770b53f41208cd5e48c947143ae7dd727841c6ba98.json","content_hash":"b4aca6bcb733b88c3b8c425865bf8b156d4bd6a940b57b7a1f8154e5992a234d","excerpt_chars":1200,"truncated":true,"excerpt":"cloudflare/cardinality-estimator Description: A crate for estimating the cardinality of distinct elements in a stream or dataset. Language: Rust License: NOASSERTION Stars: 33 Forks: 6 Open issues: 2 Created: 2024-04-25T19:17:07Z Pushed: 2026-04-28T13:10:17Z Default branch: main Fork: no Archived: no README: cardinality-estimator ![build](https://img.shields.io/github/actions/workflow/status/cloudflare/cardinality-estimator/ci.yml?branch=main) [![docs.rs](https://docs.rs/cardinality-estimator/badge.svg)](https://docs.rs/cardinality-estimator) [![crates.io](https://img.shields.io/crates/v/cardinality-estimator.svg)](https://crates.io/crates/cardinality-estimator) [![License](https://img.shields.io/badge/license-Apache%202.0-blue)](LICENSE) `cardinality-estimator` is a Rust crate designed to estimate the number of distinct elements in a stream or dataset in an efficient manner. This library uses HyperLogLog++ with an optimized low memory footprint and high accuracy approach, suitable for large-scale data analysis tasks. We're using `cardinality-estimator` for large-scale machine learning, computing cardinality features across multiple dimensions of the request. Overview Our..."}],"related_signals":[{"id":"105f925a-a1b1-437a-a2fd-1180c1b1a4fa","url":"https://onlylabs.fyi/signals/105f925a-a1b1-437a-a2fd-1180c1b1a4fa","source_url":"https://github.com/cloudflare/workspace","title":"cloudflare/workspace","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2026-06-05T10:38:15+00:00","first_seen_at":"2026-06-05T22:32:16.468976+00:00","date_source":"source"},{"id":"363a798e-ff17-4bb4-ae04-c71168947136","url":"https://onlylabs.fyi/signals/363a798e-ff17-4bb4-ae04-c71168947136","source_url":"https://github.com/cloudflare/vite-react-tester","title":"cloudflare/vite-react-tester","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2026-06-04T16:57:44+00:00","first_seen_at":"2026-06-05T22:32:16.468976+00:00","date_source":"source"},{"id":"0f638e78-0b2e-4996-895b-d9714fdc565c","url":"https://onlylabs.fyi/signals/0f638e78-0b2e-4996-895b-d9714fdc565c","source_url":"https://github.com/cloudflare/realtimekit-flutter-bridge","title":"cloudflare/realtimekit-flutter-bridge","context":"Swift","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2026-05-19T17:51:32+00:00","first_seen_at":"2026-06-10T07:01:12.958094+00:00","date_source":"source"},{"id":"f24790ff-e5fe-49fe-be07-4d811edcc054","url":"https://onlylabs.fyi/signals/f24790ff-e5fe-49fe-be07-4d811edcc054","source_url":"https://github.com/cloudflare/polystella","title":"cloudflare/polystella","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2026-05-18T15:03:06+00:00","first_seen_at":"2026-06-05T22:32:16.468976+00:00","date_source":"source"},{"id":"e3f73cc4-0b73-4897-9b58-2ca3d416b948","url":"https://onlylabs.fyi/signals/e3f73cc4-0b73-4897-9b58-2ca3d416b948","source_url":"https://github.com/cloudflare/claude-managed-agents","title":"cloudflare/claude-managed-agents","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2026-05-14T23:32:51+00:00","first_seen_at":"2026-06-05T22:32:16.468976+00:00","date_source":"source"},{"id":"056f67a5-d076-4762-a2a4-2272c6b015e6","url":"https://onlylabs.fyi/signals/056f67a5-d076-4762-a2a4-2272c6b015e6","source_url":"https://github.com/cloudflare/pfp-tools","title":"cloudflare/pfp-tools","context":"Rust","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"cloudflare","name":"Cloudflare (Workers AI)","category":"neocloud"},"occurred_at":"2026-05-14T16:47:37+00:00","first_seen_at":"2026-06-05T22:32:16.468976+00:00","date_source":"source"}]}