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What changed in Claude Code, Codex, Cursor, Copilot and other coding agents, and what actually works when building with them.

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Anthropic is donating the Agent Skills standard to the Agentic AI Foundation, while Devin has released an open-source security-remediation plugin for coding agents.

AI coding tools4 items

Gemini CLI’s latest nightly also adds IDE connectivity inside container sandboxes.

Coding agents

Anthropic donates Agent Skills standard to Agentic AI Foundation

Anthropic announced it is donating the Agent Skills standard to the Agentic AI Foundation under the Linux Foundation, committing to keep it open, community-driven and vendor-neutral.

Why it matters: Vendor-neutral governance matters for teams investing in reusable skills rather than workflows tied to one agent provider.

Coding agents

Devin releases open-source plugin for Node.js and PHP vulnerability remediation

Following October 21 security updates addressing Node.js and PHP vulnerabilities that can allow remote code execution, Devin released Vulnerability Fixes. The plugin identifies affected repositories, requests approval before changes and patches deployments to verified fixed versions.

Why it matters: Teams with affected deployments get a concrete agent-assisted remediation workflow, though the item provides no independent evaluation of its effectiveness.

In practice

Anthropic built Scion source control after Git performance problems

The Pragmatic Engineer reports that Anthropic built its own source control system, Scion, after encountering Git performance problems at 30,000 pull requests per day.

Why it matters: The report highlights source-control infrastructure as a potential bottleneck at extreme pull-request volumes, rather than establishing a reason for ordinary teams to replace Git.

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Recent briefs

  1. Tue, Nov 32 itemsA quiet edition focuses on practical applications: Codex in physical engineering workflows and Copilot in maintaining a solo developer’s Minecraft project.
  2. Mon, Nov 22 itemsDevin added delegated budget controls for enterprise AI usage, while Qodo described bringing company context and coding standards into Codex-based code review.
  3. Sun, Nov 1Nothing worth reporting
  4. Sat, Oct 31Nothing worth reporting
  5. Fri, Oct 303 itemsCodex 0.166.0 adds GPT-6.1 Terra to its model catalogs and improves keyboard-based transcript navigation. OpenAI also introduced API-credit benefits for eligible ChatGPT subscribers, potentially changing the cost of API-based development workflows.
  6. Thu, Oct 298 itemsGitHub’s biggest changes were automatic model routing, Copilot access bundled with eligible Enterprise arrangements, and generally available Agentic Workflows. Elsewhere, Claude Code expanded monitoring support, while practical reports explored offline agents and agent-built games.
  7. Wed, Oct 285 itemsGitHub made Copilot Fusion and Agentic Workflows generally available and expanded Copilot access for eligible Enterprise customers. OpenAI also announced a ServiceNow partnership expansion that brings ServiceNow workflows into Codex.

Who and what it tracks

  • CodexProduct7
  • Claude CodeProduct6
  • GitHub CopilotProduct6
  • DevinProduct4
  • Gemini CLIProduct2