# strata19.library_links
URL: /documentation/reference/tools/library_links



{/* GENERATED FILE — do not edit. Sources: src/mcp/facade/tool-projection-registry.ts (availability) + describe() in src/mcp/facade/facade-tools.ts (prose). Regenerate: pnpm exec tsx scripts/docs/site/generate-tool-reference.ts */}

## What it does [#what-it-does]

The Library LINK graph: add/remove a typed link from an artifact to a work item, finding, spec node, or file, plus the reverse lookup of what links TO a target.

## When to use it [#when-to-use-it]

**Use when:** "link this note to the auth spec" · "what links to this work item"

**Also use when:** before changing a record

## When not to use it [#when-not-to-use-it]

you want to browse/read artifacts — use strata19.library\_read (its `get` already returns outgoing links); or the link would change canonical intent — use strata19.library\_manage action `promote`

## Availability [#availability]

|           |                                                                                                                                                                                     |
| --------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Tier      | Composite member                                                                                                                                                                    |
| Lifecycle | Live                                                                                                                                                                                |
| Taught by | `strata19-coordinate-multi-repo-work`, `strata19-library-placement`, `strata19-link-evidence`, `strata19-project-library`, `strata19-resolve-a-decision`, `strata19-run-an-inquiry` |