Rails testing on autopilot: Building an agent that writes what developers won't
Mistral AI News6 days agoTutorialMistral AI describes an autonomous Rails testing agent built on its open-source Vibe coding assistant. The agent reads Rails files, applies file-type-specific skills, generates or improves RSpec tests, and validates them with RuboCop, RSpec, and SimpleCov. In a 275-file experiment, it reached 100% passing tests, 100% average line coverage, zero RuboCop violations, and a higher LLM-as-a-judge score, while stressing that generated tests must actually run.
My Agent Skill for Test-Driven Development
Hacker News (AI keywords)10 days agoTutorialJason Swett argues that uncoached AI agents still tend to write poor tests: vague, overcomplicated, tautological, or performative. His personal TDD skill guides agents through a specify-encode-fulfill loop inspired by Kent Beck’s Canon TDD. He also uses separate test and software design review skills, sometimes with Claude, to catch weak test design and prompt cleanup before implementation.
datasette-fixtures 0.1a0 Released
Simon Willison's Weblog20 days agoReleaseSimon Willison announced the release of datasette-fixtures 0.1a0, a new plugin designed to simplify plugin testing. It utilizes the new `datasette.fixtures.populate_fixture_database(conn)` helper introduced in Datasette 1.0a30. Developers can quickly test this functionality using `uvx` to generate mock database tables and retrieve sample JSON data without a full manual installation.
Vercel 推出原生部署檢查功能 (Native Deployment Checks)
Vercel Changelog47 days agoReleaseFrontend hosting and development platform Vercel has officially announced the launch of "Native Deployment Checks." This new feature is designed to streamline…
Stably 如何利用 Vercel 在數小時內交付 AI 測試 Agent
Vercel Changelog117 days agoBusinessIn modern software development, the ability to ship AI applications quickly has become a key competitive advantage. Stably, an AI testing startup, shared how…
測試「Bash 是否就是你所需的一切」：評估 AI Agent 的終端機控制能力★ 75
Vercel Changelog143 days agoOpinionWith the rise of AI Agents (such as Claude Code, Cursor, etc.), the developer community has begun to rethink: do we need to design complex, dedicated APIs for…
Vercel Sandbox CLI 正式推出：為開發者與 AI 代理打造的命令列沙盒環境★ 75
Vercel Changelog219 days agoReleaseVercel recently announced the official launch of the "Vercel Sandbox CLI," a command-line tool designed for modern web developers and AI agents that provides a…
Vercel AI SDK 與 AI Gateway 正式整合至 GitHub Actions★ 75
Vercel Changelog279 days agoReleaseVercel has announced the official integration of its two core AI development tools — the Vercel AI SDK and Vercel AI Gateway — into GitHub Actions workflows…
Vercel 機器人驗證功能現已支援 Web Bot Auth
Vercel Changelog306 days agoReleaseVercel recently released an update announcing that its platform's built-in Bot Verification feature now officially supports "Web Bot Auth" (Web Bot…
Sentry、Checkly 與 Dash0 正式加入 Vercel Marketplace
Vercel Changelog432 days agoReleaseVercel officially announced that three well-known developer tools — Sentry, Checkly, and Dash0 — have officially joined the Vercel Marketplace. This…