Update flow builder iframe to Lightspark Vercel deployment

[patcapulong]

Summary

Points the flow builder iframe in the docs from the personal Vercel deployment (grid-visualizer-opal.vercel.app) to the Lightspark team deployment (grid-flow-builder.vercel.app).

One-line change in mintlify/flow-builder.mdx.

Test plan

• Verify flow builder loads on grid.lightspark.com/flow-builder after merge
• Check both light and dark theme sync works

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Project	Deployment	Actions	Updated (UTC)
grid-flow-builder	Ready	Preview, Comment	Mar 16, 2026 11:09pm

[greptile-apps]

Greptile Summary

This PR updates the Flow Builder iframe URL from the personal Vercel deployment (grid-visualizer-opal.vercel.app) to the official Lightspark team deployment (grid-flow-builder.vercel.app), and also updates the corresponding documentation URL in CLAUDE.md (as requested in a previous review thread).

• mintlify/flow-builder.mdx: URL replaced in the React.useEffect setSrc(...) call — the only place the iframe src is constructed.
• components/grid-visualizer/CLAUDE.md: "Currently deployed at" reference updated to match — keeps internal docs consistent with the live deployment.
• All theme-sync postMessage logic and MutationObserver setup remain unchanged; only the domain changes.

Confidence Score: 5/5

• This PR is safe to merge — it is a one-line URL swap in the docs iframe with a corresponding documentation update.
• The change is minimal (two single-line URL replacements across two files), carries no logic risk, and the updated domain (grid-flow-builder.vercel.app) is the intended Lightspark team deployment. The previous review thread concern about CLAUDE.md consistency has been addressed.
• No files require special attention.

Important Files Changed

Filename	Overview
mintlify/flow-builder.mdx	Updates iframe src URL from grid-visualizer-opal.vercel.app to grid-flow-builder.vercel.app — simple, correct URL swap with no logic changes.
components/grid-visualizer/CLAUDE.md	Updates the "Currently deployed at" documentation URL to match the new team Vercel deployment, addressing the previous review thread request.

Sequence Diagram

sequenceDiagram
    participant Docs as grid.lightspark.com<br/>(Mintlify)
    participant IFrame as grid-flow-builder.vercel.app<br/>(iframe)

    Docs->>IFrame: Load src with ?embed=true&theme=light|dark
    IFrame-->>Docs: postMessage { type: 'theme-request' }
    Docs->>IFrame: postMessage { type: 'theme-sync', theme }
    Note over Docs: MutationObserver watches<br/>documentElement classList
    Docs->>IFrame: postMessage { type: 'theme-sync', theme } on class change
    IFrame-->>Docs: postMessage { type: 'theme-sync', theme } on internal toggle

Loading

_{Last reviewed commit: bcaa860}

[greptile-apps]

Stale URL in CLAUDE.md

Note: components/grid-visualizer/CLAUDE.md (line 20) still references the old personal deployment URL https://grid-visualizer-opal.vercel.app/. Consider updating it to the new grid-flow-builder.vercel.app URL to keep documentation consistent.

Prompt To Fix With AI

This is a comment left during a code review.
Path: mintlify/flow-builder.mdx
Line: 13

Comment:
**Stale URL in CLAUDE.md**

Note: `components/grid-visualizer/CLAUDE.md` (line 20) still references the old personal deployment URL `https://grid-visualizer-opal.vercel.app/`. Consider updating it to the new `grid-flow-builder.vercel.app` URL to keep documentation consistent.

How can I resolve this? If you propose a fix, please make it concise.

[pengying]

this seems right can you make the CLAUDE.md update?

[greptile-apps]

Sure! In components/grid-visualizer/CLAUDE.md on line 20, change:

- Currently deployed at: https://grid-visualizer-opal.vercel.app/

to:

- Currently deployed at: https://grid-flow-builder.vercel.app/