gitmir-hello

Legacy Maintenance — Development skill for Claude Code

Development community

Onboard onto an unfamiliar or legacy codebase and change it WITHOUT breaking the.

How to install Legacy Maintenance

Installs to ~/.claude/skills/gitmir-hello-gitmir-local-legacy-maintenance/SKILL.md

Terminal

mkdir -p ~/.claude/skills/gitmir-hello-gitmir-local-legacy-maintenance && curl -fsSL https://raw.githubusercontent.com/gitmir-hello/gitmir-local/HEAD/skills/legacy-maintenance.md -o ~/.claude/skills/gitmir-hello-gitmir-local-legacy-maintenance/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What Legacy Maintenance does

Onboard onto an unfamiliar or legacy codebase and change it WITHOUT breaking the things next to it. The danger with legacy code is not the change itself — it is the adjacent behaviour nobody remembers, that quietly breaks when you touch a shared function or column. This skill maps the system first, scopes the blast radius of the intended change, and ships it in small reversible steps you can verify.

Use it for: a repo you did not write, a fast-built MVP being stabilised, a framework/library upg