{"schema_version":"onlylabs.public_signal.v1","title":"Microsoft Repo: microsoft/tabster","description":"Microsoft repo signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3","json_url":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3/signal.json","generated_at":"2026-06-27T00:32:29.980Z","evidence_latest_fetched_at":"2026-06-22T07:04:26.128809+00:00","signal_first_seen_at":"2026-06-22T07:00:31.308446+00:00","org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/microsoft","dossier_json_url":"https://onlylabs.fyi/labs/microsoft/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3","signal_json":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3/signal.json","source":"https://github.com/microsoft/tabster","lab_dossier":"https://onlylabs.fyi/labs/microsoft","lab_dossier_json":"https://onlylabs.fyi/labs/microsoft/dossier.json","analysis":"https://onlylabs.fyi/analysis/microsoft","analysis_json":"https://onlylabs.fyi/analysis/microsoft/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/microsoft/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":null,"topic_signals_json":null,"topic_feed":null,"data_business":null},"answer_pack":{"answer":"Microsoft published microsoft/tabster (TypeScript). This repository signal exposes tooling, eval, infrastructure, or model-adjacent work before it may appear in a launch post. High-signal details: repo microsoft/tabster · language TypeScript · Solid new repo with moderate traction from Microsoft.. onlylabs links this event to 1 captured evidence page and 6 related repo signals.","signal_desk":"repos","source_context":{"source_url":"https://github.com/microsoft/tabster","source_host":"github.com","occurred_at":"2019-08-28T16:31:17+00:00","first_seen_at":"2026-06-22T07:00:31.308446+00:00","date_source":"source","context":"TypeScript"},"context_markers":[{"label":"Lab","value":"Microsoft","source":"signal"},{"label":"Signal desk","value":"repos","source":"signal"},{"label":"Source host","value":"github.com","source":"source"},{"label":"Repository","value":"microsoft/tabster","source":"source"},{"label":"Language","value":"TypeScript","source":"source"},{"label":"Stars","value":"160","source":"traction"},{"label":"Notability","value":"Solid new repo with moderate traction from Microsoft.","source":"signal"}],"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/microsoft/tabster"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-22T07:04:26.128809+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3/signal.json","dossier_json":"https://onlylabs.fyi/labs/microsoft/dossier.json","analysis_json":"https://onlylabs.fyi/analysis/microsoft/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/microsoft/evidence.json","topic_signals_json":null,"topic_feed":null,"category_signals_json":"https://onlylabs.fyi/signals.json","data_radar_json":null,"opportunities_json":null},"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.","evidence_focus":["repo name","owner","description","language","stars","source URL","first seen time","data, eval, infra, safety, and product terms"],"extraction_questions":["What technical area does this repository expose?","Does the repo imply eval, data, infrastructure, agent, or deployment work?","Is the repo new evidence for a lab direction that is not yet in writing or releases?","Which related signals should an analyst inspect next?"],"signal_questions":["What does this new repository reveal before a formal announcement exists?","What technical area does this repository expose?","Does the repo imply eval, data, infrastructure, agent, or deployment work?","Do the 6 related repo signals show a repeated pattern?"],"output_fields":["org","repo","technical_theme","data_business_lane","evidence_url"],"data_business_relevance":"New repositories can expose organization build priorities early, especially around internal tooling, eval infrastructure, data systems, deployment, and agent workflows.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3/signal.json","required":true},{"label":"source","url":"https://github.com/microsoft/tabster","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/microsoft/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/microsoft/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 Microsoft's repo signal \"microsoft/tabster\" for frontier lab strategy."},"semantic_triples":[{"subject":"Microsoft","predicate":"published repo","object":"microsoft/tabster","text":"Microsoft published repo microsoft/tabster."},{"subject":"microsoft/tabster","predicate":"is classified as","object":"repo signal","text":"microsoft/tabster is classified as repo signal."},{"subject":"microsoft/tabster","predicate":"belongs to","object":"repos desk","text":"microsoft/tabster belongs to repos desk."},{"subject":"microsoft/tabster","predicate":"has context","object":"TypeScript","text":"microsoft/tabster has context TypeScript."},{"subject":"microsoft/tabster","predicate":"has evidence coverage","object":"1 captured evidence page","text":"microsoft/tabster has evidence coverage 1 captured evidence page."},{"subject":"microsoft/tabster","predicate":"has captured page count","object":"1","text":"microsoft/tabster has captured page count 1."},{"subject":"microsoft/tabster","predicate":"has readable page count","object":"1","text":"microsoft/tabster has readable page count 1."},{"subject":"microsoft/tabster","predicate":"has related signal count","object":"6","text":"microsoft/tabster has related signal count 6."},{"subject":"microsoft/tabster","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":"microsoft/tabster 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":"microsoft/tabster","predicate":"has source host","object":"github.com","text":"microsoft/tabster has source host github.com."},{"subject":"microsoft/tabster","predicate":"has lab","object":"Microsoft","text":"microsoft/tabster has lab Microsoft."},{"subject":"microsoft/tabster","predicate":"has signal desk","object":"repos","text":"microsoft/tabster has signal desk repos."},{"subject":"microsoft/tabster","predicate":"has source host","object":"github.com","text":"microsoft/tabster has source host github.com."},{"subject":"microsoft/tabster","predicate":"has repository","object":"microsoft/tabster","text":"microsoft/tabster has repository microsoft/tabster."},{"subject":"microsoft/tabster","predicate":"has language","object":"TypeScript","text":"microsoft/tabster has language TypeScript."},{"subject":"microsoft/tabster","predicate":"has stars","object":"160","text":"microsoft/tabster has stars 160."},{"subject":"microsoft/tabster","predicate":"has notability","object":"Solid new repo with moderate traction from Microsoft.","text":"microsoft/tabster has notability Solid new repo with moderate traction from Microsoft.."}]},"intelligence":{"signal_desk":"repos","answer":"Microsoft published microsoft/tabster (TypeScript). This repository signal exposes tooling, eval, infrastructure, or model-adjacent work before it may appear in a launch post. High-signal details: repo microsoft/tabster · language TypeScript · Solid new repo with moderate traction from Microsoft.. onlylabs links this event to 1 captured evidence page and 6 related repo signals.","semantic_triples":[{"subject":"Microsoft","predicate":"published repo","object":"microsoft/tabster","text":"Microsoft published repo microsoft/tabster."},{"subject":"microsoft/tabster","predicate":"is classified as","object":"repo signal","text":"microsoft/tabster is classified as repo signal."},{"subject":"microsoft/tabster","predicate":"belongs to","object":"repos desk","text":"microsoft/tabster belongs to repos desk."},{"subject":"microsoft/tabster","predicate":"has context","object":"TypeScript","text":"microsoft/tabster has context TypeScript."},{"subject":"microsoft/tabster","predicate":"has evidence coverage","object":"1 captured evidence page","text":"microsoft/tabster has evidence coverage 1 captured evidence page."}]},"signal":{"id":"0988d9ae-a1d3-46e7-beea-aad33041cea3","url":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3","json_url":"https://onlylabs.fyi/signals/0988d9ae-a1d3-46e7-beea-aad33041cea3/signal.json","source_url":"https://github.com/microsoft/tabster","title":"microsoft/tabster","summary":"Microsoft published a new repository. onlylabs watches repos for tooling, eval, infra, and model-adjacent work.","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2019-08-28T16:31:17+00:00","first_seen_at":"2026-06-22T07:00:31.308446+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/microsoft/tabster"]},"facets":{"repo":"microsoft/tabster","language":"TypeScript"},"traction":{"github_stars":160,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"is_primary":true,"source_match":true,"url":"https://github.com/microsoft/tabster","final_url":"https://github.com/microsoft/tabster","title":"microsoft/tabster repository metadata","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-22T07:04:26.128809+00:00","bytes":10886,"raw_path":"c7156319c3c28d74face753440742fb35db5b694b3b5c96fac50b06dd189a277.json","content_hash":"77945ddc4653734e90c35b94b100bd618da56e19bb2b97f0b37026d15da6eae1","excerpt_chars":1200,"truncated":true,"excerpt":"microsoft/tabster Description: Web Application Keyboard Navigation Tools Language: TypeScript License: MIT Stars: 160 Forks: 39 Open issues: 69 Created: 2019-08-28T16:31:17Z Pushed: 2026-06-22T05:49:59Z Default branch: master Fork: no Archived: no README: Tabster _Tabindex on steroids._ A set of tools and concepts for making a dynamic web application properly accessible and keyboard-navigable. [https://tabster.io](https://tabster.io). About The way a browser and the screen readers handle a web application is evolved from the static web era. A process of making a modern dynamic web application accessible presents a number of challenges like, for example, the proper focus management between modal dialogs, popups, lists and other parts of the dynamically changing application. This project is an attempt to solve some of those challenges. Dependencies This project is framework-agnostic. It operates on the DOM level and has no external runtime dependencies. Though it is possible that your framework or application might have own logic to achieve similar result, in that case runtime conflicts and behavioural inconsistencies are definitely possible. 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