metadata
A Claude Code settings key, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.
You can add a free-form metadata block to command, skill and plugin files that Claude Code keeps but ignores.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.222.
In the changelogs
6Releases whose published page names metadata.
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v2.1.296
Task lists now show who owns each task and what it depends on
Each task in a task list now carries its owner, what it blocks and what blocks it, and optionally extra metadata
found in this entry's text
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v2.1.257
SSRF/metadata-endpoint protection for outbound requests
Outbound requests to cloud metadata hostnames and private, link-local or loopback ranges are now blocked.
found in this entry's text
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v2.1.233
Agent files no longer get spurious
shell:frontmatter errorsYour agent files stop being wrongly flagged with a shell frontmatter error.
found in this entry's text
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v2.1.222
Commands, skills and plugin manifests accept a free-form metadata object
You can add a free-form metadata block to command, skill and plugin files that Claude Code keeps but ignores.
named in this entry, found in this entry's text
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v2.1.222
Bad
metadatain frontmatter and manifests now warnsYou now get a warning when metadata in a skill, command, plugin or marketplace file is the wrong type.
named in this entry, found in this entry's text
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v2.1.222
Skill frontmatter metadata is kept on the loaded record
Skills can carry a metadata block in their frontmatter, but nothing uses it yet.
named in this entry, found in this entry's text
First cited
0No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.
Presence across releases
0The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.