Changelog

All notable changes to Harbor will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Public site redesign — implemented the design produced in Claude Design. The site is now hand-written static HTML (whitepaper/index.html, whitepaper/landscape.html, whitepaper/spec.html, whitepaper/build.html, whitepaper/styles.css) with a Fraunces / Instrument Serif + Inter + JetBrains Mono type system, a single rust-clay accent, and a compare-and-contrast comparison table that re-stacks into cards on phones.
Internal positioning doc at docs/POSITIONING.md captures the May 2026 landscape, the differentiation table, talking points by audience, and a source list. Source of truth for messaging.
Design paper trail preserved in whitepaper/DESIGN_NOTES.md, whitepaper/CLAUDE_DESIGN_PROMPT.md, and whitepaper/design-bundle/.
whitepaper/README.md documents the new site structure.

README.md — "Why This Exists" rewritten to reference the May 2026 landscape (Atlas, Comet, Gemini in Chrome, Brave Leo, Firefox AI Window, WebMCP, Chrome Prompt API) and to clarify Harbor's lane.
spec/README.md — "The Problem" extended with a fourth bad option ("just use the user's AI browser") and a paragraph framing the gap left by WebMCP and the Chrome Prompt API.
AGENTS.md — whitepaper/ description updated to reflect the static-HTML structure and docs/POSITIONING.md flagged as the messaging source-of-truth.

The old Jekyll scaffolding under whitepaper/ (_config.yml, _layouts/, Gemfile, index.md, landscape.md) — replaced by static HTML. .nojekyll added so GitHub Pages serves the files as authored.

Initial open source release
Harbor Extension: Core infrastructure for browser-based AI
- LLM provider connections (Ollama, OpenAI, Anthropic)
- MCP server hosting (JavaScript and WASM)
- Native messaging bridge (Rust)
- Chat sidebar UI
- OAuth flow support
Web Agents API Extension: Page-facing AI capabilities
- window.ai API for text generation
- window.agent API for tools, browser control, and autonomous agents
- Permission system with user consent prompts
- Feature flags for advanced capabilities
Native Bridge (Rust): Connects browser to local LLMs and services
MCP Server Support: Host Model Context Protocol servers in the browser
- JavaScript runtime for MCP servers
- WASM runtime for compiled MCP servers
- Built-in echo and time servers
- Gmail example with OAuth
Browser Support: Firefox (primary), Chrome, Safari (experimental)
Documentation: Comprehensive guides for users and developers
Demo Pages: Interactive examples showcasing the APIs