You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Plugin MarketplaceArea: what it touches
ImprovementsKind: in v2.1.286,
ImprovementsSection of the release
What
A marketplace is a catalogue of plugins that Claude Code can install from. When a marketplace source is looked up, Claude Code now checks whether it would replace a marketplace you already have. If the source cannot be understood, the error reads "Invalid marketplace source format. Try: owner/repo, https://..., or ./path".
Why
This lines up with a warning when a marketplace gets replaced and with a fix to plugin install links opened from VS Code, so you are less likely to overwrite a marketplace without knowing.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhich command runs this check is not settled, though it appears tied to `claude plugin marketplace add`.