Weekly AI Dev Signal Report: 2026-09-29 to 2026-10-05

```markdown
## Claude Code
- **Claude Code 2.1.289** is now available, featuring 27 CLI changes focused on agent management and improved clarity regarding agent states. [Learn more](https://x.com/ClaudeCodeLog/status/2106525277618635228)
- **New Plugin: "You Should Know"** scans output for critical information users might overlook. [Learn more](https://x.com/claudedevs/status/2106118517447876618)
- **Claude Code Modding Support** allows customization of behavior, UI, and features through plugins. [Learn more](https://x.com/claudedevs/status/2105721434807083061)

## Codex
- **GPT-6.1 Sol** has launched, offering enhanced agentic coding capabilities and reduced pricing compared to GPT-6 Astra. [Learn more](https://openai.com/index/introducing-gpt-6-1-sol)
- **Cloud Environments** allow developers to close their laptops while agents continue working seamlessly. [Learn more](https://x.com/OpenAIDevs/status/2104997619152130278)
- **Agents API Updates** provide developers with new capabilities and enhancements. [Learn more](https://x.com/OpenAIDevs/status/2106176799545970710)
- OpenAI released a **guide for the GPT-6 family**, aimed at effectively leveraging these models. [Learn more](https://openai.com/index/practical-guide-building-gpt-6)

## GitHub Copilot
- **GPT-6.1 Sol** is now available in GitHub Copilot, enhancing coding and terminal workflows. [Learn more](https://github.blog/changelog/2026-09-29-gpt-6-1-sol-in-github-copilot)
- Copilot can now **interact with desktop apps** via a public preview on macOS and Windows. [Learn more](https://github.blog/changelog/2026-10-01-github-copilot-can-now-interact-with-desktop-apps)
- **Project HydraFusion** has launched, optimizing tasks via multiple models in GitHub Copilot and VS Code. [Learn more](https://x.com/github/status/2105352994875232629)
- **Code Review Enhancements**: API support has been added, and a default effort level has been set to balanced. [Learn more](https://github.blog/changelog/2026-10-02-copilot-code-review-api-support-and-new-default-effort-level)
- **Dynamic Workflows** have been introduced, allowing orchestration of workflows directly in code for reliability. [Learn more](https://github.blog/changelog/2026-10-01-dynamic-workflows-in-copilot-cli-and-the-copilot-app)
- A new command, `gh-secure`, helps prevent the leakage of sensitive information in public repositories. [Learn more](https://x.com/github/status/2105705650688778588)

```