AWS Labs open-source (5k+★): one harness-neutral core turns Claude Code/Codex/Cursor/Copilot/Kiro/opencode into structured, verifiable delivery workflows via `aidlc config --harness` + doctor—install script, not a new agent.
OpenAI Codex 0.163.0 lets you send a follow-up while it is still answering (interrupt also stops Code Mode cells/tool calls), adds searchable live /config, parallel skill/memory/history reads, and Daybreak-by-default for eligible accounts.
A founder describes a working beta that scans a repository, asks product questions, and writes a behavior contract distinguishing confirmed decisions from unsettled assumptions.
Jam's creator reports using a named agent to build a campaign dashboard, draft channel-specific content, and operate marketing tasks, with persistent logs and a shared desktop interface for several coding runtimes.