HTML Data Explorer

For ad-hoc data exploration — a CSV someone pasted, a JSON dump from an API, a log file from production — opening Tableau or even a Jupyter notebook is overkill. A self-contained HTML file with the data baked in, a filterable table, a few charts, and faceted search is faster to build and faster to share.

Pre-flight — run BEFORE writing the artifact

Invoke html-skills:html-skills-listen (Skill tool) first; it is idempotent. If it returns a URL, inject it verbatim as window.__CLAUDE_SUBMIT_URL__ in the HTML you are about to write, ?t= query string included (a local, single-session loopback handshake — not a credential). If it reported web/sandbox mode, leave that line out; submitToClaude then falls back to clipboard mode.

When to use this skill

• "Look at / analyze / explore this CSV / JSON / log data"
• "Show me [a chart, filter, breakdown] of this data"
• "Build me a quick dashboard for X"
• "Help me find the rows where Y"
• Pasted tabular data with an implicit "do something useful with this"
• Log files where the question is "what happened around time T"