{"schema_version":"onlylabs.public_signal.v1","title":"Microsoft Repo: microsoft/typescript-error-deltas","description":"Microsoft repo signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/ab912062-05f9-4abb-b4c0-779054d43d89","json_url":"https://onlylabs.fyi/signals/ab912062-05f9-4abb-b4c0-779054d43d89/signal.json","generated_at":"2026-06-11T03:55:41.29047+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/ab912062-05f9-4abb-b4c0-779054d43d89","signal_json":"https://onlylabs.fyi/signals/ab912062-05f9-4abb-b4c0-779054d43d89/signal.json","source":"https://github.com/microsoft/typescript-error-deltas","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/typescript-error-deltas (TypeScript). 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This repository signal exposes tooling, eval, infrastructure, or model-adjacent work before it may appear in a launch post. 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For example, this project will clone the prettier repo and compile it with the current version of TypeScript. Then it will compile it with a version of TypeScript from a pull request. Afterward it will compile new errors that are issued only with the new version and post them as a comment on the pull request. There is no comparison of types, errors, symbols or language service output. Running To run online, you can * [Run the new error detector from Azure Pipelines](https://typescript.visualstudio.com/TypeScript/_build?definitionId=48) to create a new issue on the TypeScript repository. * [Tag typescript-bot](https://github.com/microsoft/TypeScript/wiki/Triggering-TypeScript-Bot) and write a comment of the form `@typescript-bot..."},"evidence_pages":[{"url":"https://github.com/microsoft/typescript-error-deltas","final_url":"https://github.com/microsoft/typescript-error-deltas","title":"microsoft/typescript-error-deltas repository metadata","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-11T03:55:41.29047+00:00","bytes":13523,"raw_path":"204d51d7ae81a770ab11268bd712925b9145fd24cb415e34418aceeea7f521f7.json","content_hash":"a196a58b3102ebeb671d7b393e2708611462c26c4a829180da11673d9e75e65e","excerpt_chars":1200,"truncated":true,"excerpt":"microsoft/typescript-error-deltas Description: Test popular repos on new versions of TypeScript: display new compiler errors Language: TypeScript License: MIT Stars: 29 Forks: 12 Open issues: 8 Created: 2022-01-25T16:23:37Z Pushed: 2026-06-06T19:25:48Z Default branch: main Fork: no Archived: no README: typescript-error-deltas Download and compile popular open source repos in order to compare new versions of the TypeScript compiler with the current version. 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