Build a VS Code extension that previews referenced equations on hover
A researcher asked Claude Opus for a VS Code extension that shows the referenced equation, figure, section or table on hover, and it worked.
Source
@Bidiert on X · 2026-10-15
Written in our own words. Credit to the original author. Link checked 2026-10-16.
What they did
A researcher asked Claude Opus for a VS Code extension that shows the referenced equation, figure, section or table on hover, and it worked.
Result (as claimed)
Working extension in one request.
Tools they used
Cost: Claude Opus 5.5: from $4 in / $20 out per 1M tokens.
Set it up
Gather your sources
Collect the papers, notes, links or files you want to work from in one place.
Load them into the tool
Open Claude Opus 5.5, VS Code and add your sources. Keep the original files so you can check claims later.
Ask focused questions
Ask for summaries, comparisons or connections with citations to the source passages.
Verify and save
Spot check claims against the sources, then save the output as notes you can reuse.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Build a VS Code extension that previews referenced equations on hover What the original author did: A researcher asked Claude Opus for a VS Code extension that shows the referenced equation, figure, section or table on hover, and it worked. Reported result (as claimed by the author): Working extension in one request. Source: https://x.com/Bidiert/status/2110713517456470030 Tools they used: Claude Opus 5.5, VS Code Category: Research & learning Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Build a VS Code extension that previews referenced equations on hover What the original author did: A researcher asked Claude Opus for a VS Code extension that shows the referenced equation, figure, section or table on hover, and it worked. Reported result (as claimed by the author): Working extension in one request. Source: https://x.com/Bidiert/status/2110713517456470030 Tools they used: Claude Opus 5.5, VS Code Category: Research & learning Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Build a VS Code extension that previews referenced equations on hover What the original author did: A researcher asked Claude Opus for a VS Code extension that shows the referenced equation, figure, section or table on hover, and it worked. Reported result (as claimed by the author): Working extension in one request. Source: https://x.com/Bidiert/status/2110713517456470030 Tools they used: Claude Opus 5.5, VS Code Category: Research & learning Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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