{"schema_version":"onlylabs.public_signal.v1","title":"Microsoft Repo: microsoft/BuildXL","description":"Microsoft repo signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/4eb0a0d5-8242-4283-9678-6265fcc7253c","json_url":"https://onlylabs.fyi/signals/4eb0a0d5-8242-4283-9678-6265fcc7253c/signal.json","generated_at":"2026-06-11T03:56:47.050671+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/4eb0a0d5-8242-4283-9678-6265fcc7253c","signal_json":"https://onlylabs.fyi/signals/4eb0a0d5-8242-4283-9678-6265fcc7253c/signal.json","source":"https://github.com/microsoft/BuildXL","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/BuildXL (C#). 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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/4eb0a0d5-8242-4283-9678-6265fcc7253c/signal.json","required":true},{"label":"source","url":"https://github.com/microsoft/BuildXL","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/BuildXL\" for frontier lab strategy."},"semantic_triples":[{"subject":"Microsoft","predicate":"published repo","object":"microsoft/BuildXL","text":"Microsoft published repo microsoft/BuildXL."},{"subject":"microsoft/BuildXL","predicate":"is classified as","object":"repo signal","text":"microsoft/BuildXL is classified as repo signal."},{"subject":"microsoft/BuildXL","predicate":"belongs to","object":"repos desk","text":"microsoft/BuildXL belongs to repos desk."},{"subject":"microsoft/BuildXL","predicate":"has context","object":"C#","text":"microsoft/BuildXL has context C#."},{"subject":"microsoft/BuildXL","predicate":"has evidence coverage","object":"1 captured evidence page","text":"microsoft/BuildXL has evidence coverage 1 captured evidence page."},{"subject":"microsoft/BuildXL","predicate":"has captured page count","object":"1","text":"microsoft/BuildXL has captured page count 1."},{"subject":"microsoft/BuildXL","predicate":"has readable page count","object":"1","text":"microsoft/BuildXL has readable page count 1."},{"subject":"microsoft/BuildXL","predicate":"has related signal count","object":"6","text":"microsoft/BuildXL has related signal count 6."},{"subject":"microsoft/BuildXL","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/BuildXL 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/BuildXL","predicate":"has source host","object":"github.com","text":"microsoft/BuildXL has source host github.com."},{"subject":"microsoft/BuildXL","predicate":"has lab","object":"Microsoft","text":"microsoft/BuildXL has lab Microsoft."},{"subject":"microsoft/BuildXL","predicate":"has signal desk","object":"repos","text":"microsoft/BuildXL has signal desk repos."},{"subject":"microsoft/BuildXL","predicate":"has source host","object":"github.com","text":"microsoft/BuildXL has source host github.com."},{"subject":"microsoft/BuildXL","predicate":"has repository","object":"microsoft/BuildXL","text":"microsoft/BuildXL has repository microsoft/BuildXL."},{"subject":"microsoft/BuildXL","predicate":"has language","object":"C#","text":"microsoft/BuildXL has language C#."},{"subject":"microsoft/BuildXL","predicate":"has stars","object":"1,009","text":"microsoft/BuildXL has stars 1,009."}]},"intelligence":{"signal_desk":"repos","answer":"Microsoft published microsoft/BuildXL (C#). This repository signal exposes tooling, eval, infrastructure, or model-adjacent work before it may appear in a launch post. High-signal details: repo microsoft/BuildXL · language C#. onlylabs links this event to 1 captured evidence page and 6 related repo signals.","semantic_triples":[{"subject":"Microsoft","predicate":"published repo","object":"microsoft/BuildXL","text":"Microsoft published repo microsoft/BuildXL."},{"subject":"microsoft/BuildXL","predicate":"is classified as","object":"repo signal","text":"microsoft/BuildXL is classified as repo signal."},{"subject":"microsoft/BuildXL","predicate":"belongs to","object":"repos desk","text":"microsoft/BuildXL belongs to repos desk."},{"subject":"microsoft/BuildXL","predicate":"has context","object":"C#","text":"microsoft/BuildXL has context C#."},{"subject":"microsoft/BuildXL","predicate":"has evidence coverage","object":"1 captured evidence page","text":"microsoft/BuildXL has evidence coverage 1 captured evidence page."}]},"signal":{"id":"4eb0a0d5-8242-4283-9678-6265fcc7253c","url":"https://onlylabs.fyi/signals/4eb0a0d5-8242-4283-9678-6265fcc7253c","json_url":"https://onlylabs.fyi/signals/4eb0a0d5-8242-4283-9678-6265fcc7253c/signal.json","source_url":"https://github.com/microsoft/BuildXL","title":"microsoft/BuildXL","summary":"Microsoft published a new repository. onlylabs watches repos for tooling, eval, infra, and model-adjacent work.","context":"C#","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2018-10-12T22:16:45+00:00","first_seen_at":"2026-06-06T01:49:41.740219+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/BuildXL"]},"facets":{"repo":"microsoft/BuildXL","language":"C#"},"traction":{"github_stars":1009,"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/microsoft/BuildXL","final_url":"https://github.com/microsoft/BuildXL","title":"microsoft/BuildXL repository metadata","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-11T03:56:47.050671+00:00","bytes":9900,"raw_path":"f68e610324602fddc9e976c8ba721ef0bece87b5adb68b8ab5702646002a14df.json","content_hash":"18d9b06bc54c716b3c099b23a10df374e7108bb4e662505929e709d65f93d521","excerpt_chars":1200,"truncated":true,"excerpt":"microsoft/BuildXL Description: Microsoft Build Accelerator Language: C# License: MIT Stars: 1009 Forks: 164 Open issues: 23 Created: 2018-10-12T22:16:45Z Pushed: 2026-06-10T23:01:28Z Default branch: main Fork: no Archived: no README: BuildXL (Microsoft Build Accelerator) <img alt=\"BuildXL Icon\" src=\"Public/Src/Branding/BuildXL.png\" width=15%> Introduction BuildXL (Microsoft Build Accelerator) is a build engine originally developed for large internal teams at Microsoft. Internally at Microsoft, BuildXL runs 150,000+ builds per day on [monorepo](https://en.wikipedia.org/wiki/Monorepo) codebases up to a half-terabyte in size with a half-million process executions per build. It leverages distribution to thousands of data center machines and petabytes of source code, package, and build output caching. Thousands of developers use BuildXL on their desktops for faster builds. BuildXL accelerates multiple build languages, including: * [JavaScript](Documentation/Wiki/Frontends/js-onboarding.md) * [MSBuild](Documentation/Wiki/Frontends/MSBuild/Main.md) * [Ninja (CMake)](Documentation/Wiki/Frontends/Ninja.md) * Its own internal scripting language, DScript, an experimental TypeScript based..."},"evidence_pages":[{"url":"https://github.com/microsoft/BuildXL","final_url":"https://github.com/microsoft/BuildXL","title":"microsoft/BuildXL repository metadata","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-11T03:56:47.050671+00:00","bytes":9900,"raw_path":"f68e610324602fddc9e976c8ba721ef0bece87b5adb68b8ab5702646002a14df.json","content_hash":"18d9b06bc54c716b3c099b23a10df374e7108bb4e662505929e709d65f93d521","excerpt_chars":1200,"truncated":true,"excerpt":"microsoft/BuildXL Description: Microsoft Build Accelerator Language: C# License: MIT Stars: 1009 Forks: 164 Open issues: 23 Created: 2018-10-12T22:16:45Z Pushed: 2026-06-10T23:01:28Z Default branch: main Fork: no Archived: no README: BuildXL (Microsoft Build Accelerator) <img alt=\"BuildXL Icon\" src=\"Public/Src/Branding/BuildXL.png\" width=15%> Introduction BuildXL (Microsoft Build Accelerator) is a build engine originally developed for large internal teams at Microsoft. Internally at Microsoft, BuildXL runs 150,000+ builds per day on [monorepo](https://en.wikipedia.org/wiki/Monorepo) codebases up to a half-terabyte in size with a half-million process executions per build. It leverages distribution to thousands of data center machines and petabytes of source code, package, and build output caching. Thousands of developers use BuildXL on their desktops for faster builds. BuildXL accelerates multiple build languages, including: * [JavaScript](Documentation/Wiki/Frontends/js-onboarding.md) * [MSBuild](Documentation/Wiki/Frontends/MSBuild/Main.md) * [Ninja (CMake)](Documentation/Wiki/Frontends/Ninja.md) * Its own internal scripting language, DScript, an experimental TypeScript based..."}],"related_signals":[{"id":"8afe79f4-378b-4748-9e2a-3cf5e3253fdb","url":"https://onlylabs.fyi/signals/8afe79f4-378b-4748-9e2a-3cf5e3253fdb","source_url":"https://github.com/microsoft/Dev-Trio","title":"microsoft/Dev-Trio","context":null,"kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2026-06-08T03:41:01+00:00","first_seen_at":"2026-06-08T07:01:04.198092+00:00","date_source":"source"},{"id":"9e75fa50-dba7-4b77-9faf-166c323e3dff","url":"https://onlylabs.fyi/signals/9e75fa50-dba7-4b77-9faf-166c323e3dff","source_url":"https://github.com/microsoft/amplifier-app-paperclip","title":"microsoft/amplifier-app-paperclip","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2026-06-04T21:13:41+00:00","first_seen_at":"2026-06-05T20:58:41.438741+00:00","date_source":"source"},{"id":"76cacf33-54b2-4074-bec0-23944d8fb67c","url":"https://onlylabs.fyi/signals/76cacf33-54b2-4074-bec0-23944d8fb67c","source_url":"https://github.com/microsoft/create-github-app-token-via-key-vault","title":"microsoft/create-github-app-token-via-key-vault","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2026-06-04T18:22:49+00:00","first_seen_at":"2026-06-05T20:58:41.438741+00:00","date_source":"source"},{"id":"b2f7bcbd-9db3-4785-8a2a-2e0e0cb22ed2","url":"https://onlylabs.fyi/signals/b2f7bcbd-9db3-4785-8a2a-2e0e0cb22ed2","source_url":"https://github.com/microsoft/Enterprise-AI-Analytics-Pipeline","title":"microsoft/Enterprise-AI-Analytics-Pipeline","context":null,"kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2026-06-04T16:48:58+00:00","first_seen_at":"2026-06-05T20:58:41.438741+00:00","date_source":"source"},{"id":"51a9ec5d-5f14-45d9-b57a-db362b5d1ace","url":"https://onlylabs.fyi/signals/51a9ec5d-5f14-45d9-b57a-db362b5d1ace","source_url":"https://github.com/microsoft/fabric-org-app-template","title":"microsoft/fabric-org-app-template","context":"TypeScript","kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2026-06-03T18:26:42+00:00","first_seen_at":"2026-06-05T20:58:41.438741+00:00","date_source":"source"},{"id":"f26025da-153f-4d27-851c-7b4892602810","url":"https://onlylabs.fyi/signals/f26025da-153f-4d27-851c-7b4892602810","source_url":"https://github.com/microsoft/amplifier-bundle-amplifier-online","title":"microsoft/amplifier-bundle-amplifier-online","context":null,"kind":{"key":"repo_new","label":"Repo"},"org":{"slug":"microsoft","name":"Microsoft","category":"frontier-lab"},"occurred_at":"2026-06-03T17:26:20+00:00","first_seen_at":"2026-06-05T20:58:41.438741+00:00","date_source":"source"}]}