kb-register-library

To register an external knowledge base, provide a unique name and the absolute path to its directory. The skill validates the path exists, confirms a _shelf-index.md is present, and parses its format_version for compatibility before adding it to the registry.

Validation requires checking that the library directory path exists, verifying it contains a _shelf-index.md file, and parsing the format_version within that shelf index to ensure compatibility before registering the knowledge base.

Yes, you can supply an optional description when registering a knowledge base library. This annotation improves library discoverability and helps identify the knowledge base within the global registry.

Registered knowledge base library data is stored in ~/.sdlc/global-libraries.json. This user-scope global registry file tracks the unique name, absolute directory path, and optional description of each validated library.

Registration fails because the skill validates the presence of a _shelf-index.md file within the library directory. Without this shelf index, the knowledge base cannot be parsed for format_version compatibility and will not be registered.

You need to register a knowledge base when you want to enable cross-project reuse of external information. This process links a named library directory into the global registry after validating its shelf index format.