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docs: add instructions for viewing lcov coverage in VS Code#1558

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mvanhorn:docs/1063-lcov-vscode
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docs: add instructions for viewing lcov coverage in VS Code#1558
mvanhorn wants to merge 1 commit intocrytic:masterfrom
mvanhorn:docs/1063-lcov-vscode

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Summary

Adds a section under "Collecting and visualizing coverage" showing how to use Echidna's lcov output with the Coverage Gutters VS Code extension for inline coverage visualization.

Changes

README.md: Added "Viewing coverage in VS Code" subsection with:

  • Config example enabling lcov format via coverageFormats
  • Steps to install Coverage Gutters extension and display coverage

All information verified against the codebase: coverageFormats: ["lcov"] is a supported config option (see tests/solidity/basic/default.yaml line 84, lib/Echidna/Types/Coverage.hs line 92).

Fixes #1063

This contribution was developed with AI assistance (Claude Code).

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CLAassistant commented Apr 10, 2026

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Highlight lcov support in the readme

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