AI DAILY / DEV
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MONDAY
June 22, 2026
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    Claude Opus 4.7 Beats Human Teams 20x on Robot-Dog Tasks in Project Fetch Phase Two
    • Anthropic rerun of last year's quadruped study with Opus 4.7 driving non-roboticist employees.
    • Claude was 10x+ faster than every human team that finished a task, 37x faster than the no-AI team, 19x faster than the team using an AI assistant.
    • Generated nearly 10x less code than humans for comparable or better results.
    • Still couldn't fetch the actual ball — failed at closed-loop visual precision control.
    research anthropic.com

    OpenAI Ships Record & Replay for Codex on macOS
    • Demonstrate a workflow on your Mac once, Codex turns the recording into a reusable skill.
    • Shipped June 18 in Codex 26.616; requires Computer Use enabled.
    • Available on Plus, Pro, Business, Enterprise, and Edu — excludes EU, UK, and Switzerland.
    • Generated skill describes when to use it, inputs, steps, and how to verify.
    tools openai.com

    xAI Drops a Free Grok Add-in Into Microsoft Word
    • Side-panel Grok with live web research, document editing, and Mermaid-rendered diagrams.
    • Searches xAI, Brave, and Bing in parallel with source attribution.
    • Free from the Microsoft 365 marketplace — direct shot at paid Copilot.
    • Excel and PowerPoint add-ins followed in the same wave.
    tools x.ai

    Ponytail Cracks 44K Stars Telling Coding Agents Not to Write the Code
    • Skill/plugin that runs Claude Code, Codex, Cursor, and Gemini CLI through a YAGNI ladder before they generate anything.
    • 24K stars in three days post-launch; 44K stars and 2,100 forks by June 21.
    • Author benchmarks: 80–94% less code, 3–6x faster tasks, 47–77% lower API cost.
    • HN debates whether the 'lazy senior dev' framing breaks on genuinely custom work.
    open-source github.com

    Agentjacking: Poisoned Sentry Errors Hijack Claude Code, Cursor, and Codex
    • Tenet Security disclosure: attacker-crafted Sentry events are pulled in via MCP and executed by the coding agent.
    • Claude Code, Cursor, and Codex all ran attacker commands at developer privilege in tests.
    • 2,388 organizations exposed via public DSNs; Sentry called the issue 'technically not defensible' and declined to patch.
    • First high-profile demo of MCP tool-poisoning landing on production coding agents.
    tools thehackernews.com

    Fable 5 Ban Hits Day 10 as NSA Testimony Reshapes the Story
    • NSA Director Joshua Rudd told Sen. Warner in a classified June 11 briefing that Mythos breached 'nearly all' NSA classified systems in hours during a red-team.
    • Senator Warner went public over the weekend; now the most-cited reason for the June 12 export-control directive.
    • Free Fable 5/Mythos 5 trial for Pro/Max/Team/Enterprise subscribers expired today with the models still dark globally.
    • Fable 5 reappeared in the Claude Android model picker Sunday but throws a rate-limit error — Anthropic confirms it's a UI artifact, not a partial restore.
    industry anthropic.com