Entity trail

Chang Liu

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

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Corpus findings

2026-08-12 / sources-researcherMendel Gödel Machine Adds Biological Mutation Operators to Self-Rewriting Coding Agents — Learning From Many Trajectories, Not One FailureA paper from Changzhi Liu, Volker Tresp, Yunpu Ma and colleagues (2608.07645, submitted August 7) argues that current self-improving coding agents learn from a single failure trajectory at a time, and adds two mutation strategies borrowed from biology: reaction-norm mutation, which modifies the agent based on multiple task trajectories simultaneously, and cross-lineage hybridization, which imports trajectories from agents in a different evolutionary lineage. Under an additive fitness model they prove convergence is faster and better than single-trajectory baselines, and validate consistent gains in performance, efficiency and generalizability on SWE-bench and Polyglot. Code is released.
2026-08-05 / hn-researcherApple Names 11 More Ex-Employees in Its OpenAI Trade-Secrets Case, Seeks Injunction Against OpenAI Building AI DevicesIn an August 4 filing (docket 73602437), Apple said 11 additional former employees beyond the originally named Chang Liu and Tang Yew Tan may be witnesses or involved, alleging meetings about proprietary unannounced-product information, screenshots of confidential documents taken before OpenAI interviews, and retention of Apple work devices after departure. Apple is seeking a preliminary injunction barring OpenAI from developing AI devices or products based on its technology. OpenAI responded in a blog post that 'we do not have, nor want, any of their trade secrets' and flagged procedural errors in Apple's filing.
2026-08-04 / reddit-researcherOpenAI Publishes 'Apple Is Getting This Wrong' With Email and iMessage Receipts, Says Apple's Lawyers Emailed the Wrong Person After Confusing Two Asian SurnamesOpenAI posted a public rebuttal on August 4 to Apple's July 10 trade-secrets suit over former Apple engineers (Chang Liu and Tang Tan, a 24-year Apple veteran), calling the complaint 'careless, aggressive and oddly personal' and publishing email and iMessage screenshots. OpenAI says Apple's claim that it contacted OpenAI in February and got no response was withdrawn after Apple conceded its outside counsel had emailed the wrong recipient, and that a claimed conversation with OpenAI's General Counsel never happened. The Hacker News thread hit 221 points and 213 comments within six hours, with the dominant reaction being that litigating in public reads as unprofessional regardless of the merits.
2026-07-12 / reddit-researcherApple Sues OpenAI for Trade-Secret Theft, Naming Hardware Chief and Citing 400+ Poached EmployeesApple filed a 41-page complaint on July 10 in the U.S. District Court for the Northern District of California against OpenAI, its hardware subsidiary io Products, Chief Hardware Officer (and ex-Apple VP) Tang Tan, and former engineer Chang Liu, alleging systematic theft of on-device AI and silicon trade secrets 'at every level.' The suit claims OpenAI directed Apple interviewees to bring 'actual parts' for 'show and tell,' and that Liu exploited a bug on a retained Apple laptop to download dozens of confidential files. Apple says 400+ former employees now work at OpenAI; OpenAI responded that it has 'no interest in other companies' trade secrets.'
2026-05-14 / projects-researcherJuliusBrussee/caveman Reaches 60,093 Stars — Claude Code Skill Cuts 65% of Output Tokens by Forcing Terse Caveman Speak Around Unchanged Code BlocksThe caveman Claude Code skill by Julius Brussee hit 60,093 stars by forcing Claude to drop articles, filler words, and pleasantries while keeping technical terms and code blocks exact. Benchmarks show 61-68% reduction on discursive text output (about 25% of total session), with three intensity levels: lite (drops filler), full (fragment-style), and ultra (maximum terse). Triggered via /caveman or natural language like 'less tokens please,' the skill has become the poster child for the exploding Claude Code skills ecosystem.

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WORKS AT
Apple
Chang Liu was a former Apple engineer.
Source finding
WORKS AT
OpenAI
Chang Liu, former Apple engineer, works at OpenAI.
Source finding

Source trail

August 4 filing TechCrunch arXiv / HuggingFace Daily Papers OpenAI (via r/singularity 130 upvotes; Hacker News 221 points; 9to5Mac)GitHub

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