link: a part named in ~/.config/dot/skip does nothing on that machine

A machine may need one of the parts left out: on a laptop it does not own,
~/.claude/settings.json is the owner's, holding their environment and plugins,
and linking this account's over it is wrong in both directions -- theirs is
lost, and anything of theirs worth keeping would have to be carried here, in
the repo every machine shares.

The file is hand-written and in no repo, like ~/.localenv, so the exception
stays on the machine that needs it. The check is in link/lib.sh, as each part
starts, rather than in link.sh's loop, so `link/claude.sh yes` obeys it too;
link.sh and other repos' link.sh source that file as well, and sit outside
link/, so their names can never be read as a part's.

1 files changed, 2 insertions, 0 deletions

diff --git a/CLAUDE.md b/CLAUDE.md
index a78bc50..543698a 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -129,6 +129,8 @@ The repository uses a centralized linking system where `link.sh` creates symlink
 
 `link.sh` holds only the plain one-line links. Anything with logic of its own is a part in `link/` (`ssh`, `claude`, `pi`, `skills`, `icloud`, `hammerspoon`, `kwin`): a script with the same `[yes]` dry-run interface that decides for itself whether it applies, and can be run alone (`link/ssh.sh yes`). Shared helpers are in `link/lib.sh`. New logic goes in a part, not in `link.sh`.
 
+A part named in `~/.config/dot/skip`, one per line, does nothing on that machine — whether it is reached through `link.sh` or run on its own. That file is hand-written and in no repo, like `~/.localenv`: it is for a machine where a part would do the wrong thing, such as one whose `~/.claude/settings.json` belongs to its owner rather than to this account, and it keeps that machine's exception out of this repo, which every machine shares.
+
 ### Theme System
 A sophisticated theming system managed by `bin/theme` coordinates color schemes across multiple applications:
 - Supports both light and dark modes