Activity

Summary

PR #132's after-render `syncHeight()` was still firing too late. Claude.ai snapshots iframe height during initial load, well before our async `createMcpApp` callback or any `onToolResult` event.

Per the bug report (anthropics/claude-ai-mcp#69), the only timing window that works is setting `document.documentElement.style.height` inline, at HTML parse time — before any other script runs.

This PR adds a one-liner synchronous `

```html

```

The CSS `min-height` (from #131) and the after-render `syncHeight` (from #132) stay — they don't hurt and they help on spec-compliant hosts that respect resize notifications or CSS.

Test plan

• Merge, deploy
• Re-run AI coding agents brief
• Confirm Compare/Neighborhood cards render at full 800px height
• If still not honored, the failure mode is now diagnostic — Claude.ai is hard-capping inline mode regardless of any inline attribute, and we'd need to chase `requestDisplayMode` instead