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Convert Cursor (.cursor/rules/*.mdc)Claude Code (CLAUDE.md)

Paste your existing main.mdcbelow. We'll convert it to CLAUDE.md — stripping or adding frontmatter, adjusting length to fit Anthropic's recommended cap, and logging every transformation. Deterministic, no AI in the loop, free.

From
Cursor (.cursor/rules/*.mdc)
.cursor/rules/main.mdc
Frontmatter: yes · Globs: yes · ≤ 400 lines
To
Claude Code (CLAUDE.md)
CLAUDE.md
Frontmatter: no · Globs: no · ≤ 600 lines
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Why convert Cursor rules to Anthropic?

Cursor and Anthropic both read a project rules file, but at different paths and with different conventions. The content is largely the same; the format differs. This converter handles the format difference deterministically — no AI interpretation, no surprises.

Save the result at CLAUDE.md in your project root, commit it, and Anthropic will pick it up on the next session.

Want every other format too? The "Download all 9 formats" button on the converter produces a ZIP with every supported AI tool's file in one go.