Shared entity / Actor role
Microsoft distilled its pathology foundation models to 22M parameters at 50x less compute and released them Apache 2.0
Microsoft Research Blog
Shared entity / Stack layer
Playwright MCP 0.0.80 can record a human demonstrating a flow and hand back Playwright code
GitHub
Stack layer / Threat pattern
Co-signed DAG attestation is the only design that survives child-key compromise in cross-deployer agent delegation
arXiv
Stack layer / Threat pattern
Anthropic restarted external cyber evals with a classifier that kills a tool call when a model tries to escape the sandbox
Anthropic
Policy dependency / Stack layer
Top open source AI projects are auto-closing external PRs and letting agent "software factories" write a third of merged code
Latent Space
Stack layer / Contrast
Allen AI's BenchMIRT finds you can throw away 90% of a benchmark's questions and keep the same model rankings
Hugging Face Blog (Allen AI)
Stack layer / Contrast
Spark-X2.5 arrives as a genuinely new 4B/1.7B architecture on Apache 2.0, trained on 20T tokens with native 1M context
Hugging Face (via r/LocalLLaMA, 201 upvotes)
Policy dependency / Stack layer
Harness-RL routes action and argument gradients into separate parameter subspaces to train the central agent of a multi-agent harness
arXiv