Chrome extension that adds merge dependencies to GitHub pull requests: a PR's merge stays blocked until the PRs it depends on land. Cross-repo and transitive chains, stored in the PR. No backend.
2 files for Claude Code and GitHub Copilot: mergechain CLAUDE.md, mergechain-deps — 1,239 tokens loaded in every session.
CLAUDE.md A 1,239 tok .github/prompts/mergechain-deps.prompt.md A — These files are oleg-koval/mergechain's own configuration — they tell Claude Code and GitHub Copilot how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.