Prime Agent was rewritten from TypeScript to Rust by orchestrating a large autonomous multi-agent effort to produce a faster, smaller, and more robust runtime. Over two weeks more than 2,000 agents ran across 10,000+ Prime Sandboxes (a recorded session showed 2,209 agents, 16,758 messages, and ~228.7B tokens) to port features, maintain protocol parity, and hillclimb performance. Rust was chosen for native performance, stronger concurrency guarantees, and compile-time safety; the rewrite modularized the code into nine crates, reduced maximal file sizes, added per-session worker isolation and persistence, unified message types in a shared crate, and enabled platform abstractions (including Windows) and catalog-driven model/plugin shipping.
The rewrite was largely autonomous but constrained by objective, automated verification: TUI, harness, protocol and feature parity checks guided work so humans intervened mainly for verification setup and design decisions. A root orchestrator assigned tasks to planner, implementer, reviewer and verifier agents; failed checks looped back until passing. A separate hillclimb loop profiled benchmarks, ran controlled experiments, and merged 69 validated improvements from 144 experiments. Measured gains include cold-start latency dropping from ~736 ms (TS) to ~51.9 ms (Rust after hillclimb), warm-start to ~41.4 ms, large-session RSS shrinking from ~1,130 MB to ~237.3 MB, and installed size to ~59.6 MB.
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Eurydice is a tool that compiles Rust code into readable C code, facilitating interoperability and analysis. It aims to make Rust's low-level details more accessible by translating it into a familiar language for developers and tools. (lwn.net)
Users share their first commands on a new server, such as checking system info or listing files. Common commands include ls, nproc, lsb_release -a, and uname -a. (news.ycombinator.com)
Researchers analyze git commit hashes to identify rare patterns based on specific word and sequence criteria. They categorize hashes into tiers like common, rare, and mythic, using pattern matching and GPU computation to find the rarest hashes. (engineering.finchlegal.com)
Python 3.15 introduces new features such as explicit lazy imports, frozendict and sentinel built-in types, and a dedicated profiling package. It also includes numerous module improvements, optimizations, and deprecations to enhance performance and usability. (docs.python.org)
Kotlin was ported from Rust's Campfire to the JVM in one day, matching or exceeding Rust's performance in benchmarks. The improvements resulted from architectural changes rather than language speed, demonstrating that attention and optimization influence performance as much as the choice of language. (wecodefire.com)
Python 3.15.0 has been released with new features and improvements. The update is available for download on the official Python website. (python.org)
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