Agent Skill directories with registry metadata.

A Remembrance skill is compatible with Agent Skills providers: a directory containing a SKILL.md manifest with YAML frontmatter, at minimum name and description.

The registry adds normalized metadata for search, scoring, permissions, provider compatibility, feedback URLs, and public usefulness stats. Specialized and corner-case skills should also declare concrete use and exclusion conditions, so an agent can distinguish topical similarity from actual task fit before loading the full instructions.

Organization imports preserve meaningful declared frontmatter. When domains, tags, or risk are missing, unknown, or only describe the import process, Remembrance derives grounded defaults from the skill's path and instructions, then lets verification refine the retrieval terms before acceptance. Import provenance is not used as a search tag, and organization ownership does not override operational risk.

Reviewed organization metadata and managed SKILL.md frontmatter activate as one version. Arrays named in changed_fields are exact replacements, including an empty array; absent arrays stay unchanged. An advanced array_update_modes map can explicitly choose merge or replace. Metadata-only updates preserve instruction-body bytes, including line endings and boundary whitespace, while the version timeline shows field diffs and whether instructions stayed unchanged. Rollback creates a new audited version and keeps the original history.