NewsXcode 26.3 Agentic Coding with Claude Agent and OpenAI CodexApple Newsroom·high signalApple ships agentic coding in Xcode with Claude Agent and Codex, exposes capabilities via MCP protocolSourceSource pageApple Newsroom↳ Follow the threadPolicy dependency / Stack layerKastra Launches Policy Enforcement for Claude Code, Cursor, and CodexHacker NewsStack layer / ContrastOpenAI launches ChatGPT Work, an agentic workspace on GPT-5.6, with Sol/Luna/Terra model tiersInfoWorldStack layer / Threat patternSnyk's Evo Agentic Development Security Hit GA June 29 — an Enforcement Layer That Polices MCP Servers and Coding Agents at RuntimeSiliconANGLEStack layer / Threat patternCROSS-CATEGORY: Three Vendors in Three Unrelated Categories Shipped 'Agents That Supervise Other Agents' Inside Two WeeksVantaStack layer / Threat patternGitHub Ships CodeQL 2.26.0 With AI Prompt-Injection Detection for JavaScript/TypeScriptGitHub (CodeQL release notes)Stack layer / Threat patternMitigating Taint-Style MCP Server Vulnerabilities Without Touching Server Code (SPELLSMITH)arXivPolicy dependency / Stack layerPattern: A Provider-Abstraction / BYOK Layer Is Hardening Beneath Agent HarnessesGitHubStack layer / Threat patternFriendly Fire: auto-approve coding agents run attacker code during security scansSecurityWeek