The released source covers APIs for more than 200 AWS services. An agent is a model running a multi-step task with tools; AWS says agents wrote the emulator’s code from public API descriptions and tests checked against real AWS.
Linux users can install an RPM or Debian package. macOS and Windows users build a Docker image; AWS also documents an embedded option for Rust tests. The emulator has no additional service fee.
It runs at a local HTTPS address with generated credentials. AWS publishes per-service fidelity tests, including failed cases, so teams can check whether their own operations are covered.
Caveat: The emulator skips identity and access policies, leaving production security and compatibility unproven by local tests.
(HN 447 points · 138 comments · AWS launch, documentation and source)
Pietro Miotti says he had 48 agents examine publicly available laser-mapped terrain. They flagged a hilltop with what looked like a plaza and pyramid, and Mexico’s archaeology agency found no site registered at the supplied location.
The agency’s registry check and a literature search answer different questions. The original account describes a proposed field check, not completed archaeological verification.
Gemini Decision 1 takes a shared text, image, audio, video or PDF input and scores yes/no, choice or ordered-rubric questions. The API guide documents up to 1,000 independent questions in one request and a 262,144-token input-and-questions limit.
Google quotes 150–250 milliseconds per request end to end and $0.10 per million input tokens, with no output-token charge. Those timings and comparisons are Google’s own measurements.
Each answer carries a probability or score and a confidence value. The guide recommends an explicit catch-all choice or a separate scope check: choosing the best listed option does not mean any option fits.
Access is through Google AI Studio’s Gemini Developer API in beta; the guide says the endpoint does not accept tool-call blocks or conversation history as such.
Caveat: Google’s calibration and speed claims are vendor-reported, and a score still needs task-specific thresholds and a human fallback for consequential decisions.
(HN 108 points · 35 comments · Techmeme · Google announcement and API guide)
All gathered items - what was cut and why (7)
Atuin Threads session sync → STALE: the 18.24.0 release dates to October 15 and the same post was submitted to HN October 27; a new HN submission is not a new launch.
Apple’s learned retrieval write-up → STALE: Apple’s highlight is dated November 5 and describes an ICML 2026 paper, with no newly released method this afternoon.
AlphaGenome 2 → OFFSTACK: a real new research release, but specialized genetics rather than an agent, LLM or self-hosting tool; its non-commercial API and clinical limits matter more to a biology desk.
Retirement savings and AI buildout essay → LOW_UTILITY for this edition: a November 9 political-economy argument, not an independently verified new financing development in the Afternoon collection; worth reading, but no fresh event to report as news.