Tooling6d ago
xAI will add an invisible watermark to Grok API text by default from Nov 7, covering grok-4.7 and six other models, with per-model admin opt-out
On Oct 31, xAI (signed as SpaceXSI in its docs) added an "Output Watermarking" page to its API docs: starting November 7, 2026, text generated by grok-4.7, grok-4.6, grok-4.5, grok-4.3, and the reasoning, non-reasoning, and multi-agent versions of grok-4.20 will carry an invisible watermark by default, to comply with the EU AI Act. It covers ordinary text, structured outputs, and tool call arguments on both the Responses and Chat Completions APIs, and works by slightly shaping token choice without adding any characters. Developers can read the x-watermark response header to check; team admins can opt out per model in the Console, but must confirm a legal exception applies, and some models may be locked on.
Tooling11d ago
Microsoft Research and UC Berkeley open-source TokenEconomizer, a plugin that cuts Claude Code and Codex costs by 18.4–30.9% on SWE-Bench without changing the agent
Microsoft Research, Microsoft Security and UC Berkeley open-sourced TokenEconomizer on GitHub (Apache 2.0, v0.1.0 released October 26), a plugin for Claude Code, Codex, GitHub Copilot CLI and Pi, with experimental opencode support. It learns from earlier sessions in the same repository: micro-skills remember repo facts, tool pruning drops tool definitions that go unused, and a loop guard nudges an agent that is stuck. The paper reports 18.4–30.9% lower mean cost across five agent and model combinations on 277 SWE-Bench tasks (paper figures).
Tooling47d ago
Chubby Skills open-sources multi-platform ingest skills plus a KB MCP server
@DanKornas highlighted Chubby Skills (github.com/chubbyguan/chubbyskills, MIT, ~688★): open content-ingest and PKB skills that save Bilibili/YouTube/Douyin/Xiaohongshu/WeChat/X/podcasts as source-preserving local Markdown/JSON (subtitle-first transcription, local vault indexing) plus an MCP server so coding agents can search and manage the knowledge base.
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