Tidalwave Web

AI coding agent integrated into your environment, capable of modifying your web app
accesses your db, evaluates code, and functions like a developer (pretty unique feature)
works for Phoenix & Ruby on Rails
Shared in-browser coding environment
Tidewave runs directly inside your browser’s dev tools alongside your live web app, so the AI agent shares your exact session, UI state, and application lifecycle without any context-switching.
Inspector-driven UI mapping
Click to select elements on your page, and Tidewave automatically traces them back to the right templates and code files, sending all the metadata to the agent so you never have to manually describe your UI or hunt down component paths.
Real-time feature build & validation
The agent not only writes new code but also executes and tests it on the spot in your browser session—no more copy-pasting stack traces or switching to a separate terminal to verify changes.
Runtime Intelligence with deep stack access
Tidewave’s agent taps into your database, APIs, docs, and environment variables at runtime, delivering context-rich suggestions and data-driven logic that generic coding assistants simply can’t match.
Open-source “Runtime Intelligence” via MCP
The core component that powers Tidewave’s framework-specific context gathering is open source and available over the Model Context Protocol, so you can plug it into other editors or AI agents even without a Tidewave subscription.

One of the most intriguing facets of Tidewave is its inspector-driven workflow: the AI can literally “see” your live web pages, map UI elements to their underlying code, and weave that understanding into every suggestion. It’s like having a pair-programming partner who never loses track of your app’s state—eliminating the tedious back-and-forth of sharing screenshots, copying errors, or manually explaining component hierarchies, and turning feature development into a seamless, context-aware dialogue.

2026.09.08

Status: active — and expanded far beyond Phoenix/Rails. The team (José Valim et al., “two decades creating dev tools”) has repositioned Tidewave as “the complete AI dev toolkit” with three surfaces: Tidewave IDE (the in-browser app you knew), a Toolbar (framework-aware inspect/debug), and Tidewave Connect (Aug 2026) — use it straight from your terminal/editor agent (Claude Code, Codex, Cursor, OpenCode) over your existing browser session via MCP. Framework support grew from Phoenix+Rails to React, Vue, Vite, TanStack Start too. Changelog is steady (v0.9.0, Aug 18 2026).