v0.7.7-rc.1 — Lit renderer and MCP stack

Lit is now included in the coordinated SAGA A2UI npm release. @saga-a2ui/lit and @saga-a2ui/lit-mcp-stack join core, components, MCP, React and the React stack at 0.7.7-rc.1 under next. Runtime APIs are unchanged.

An application installs one stack and its framework peers. At the application root, retain the Markdown override:

{"overrides":{"@a2ui/markdown-it":"0.2.1"}}

npm install --save-exact --strict-peer-deps @saga-a2ui/lit-mcp-stack@0.7.7-rc.1 lit@3.3.3

React applications use:

npm install --save-exact --strict-peer-deps @saga-a2ui/react-mcp-stack@0.7.7-rc.1 react@19.3.1 react-dom@19.3.1

Use Node >=22.12.0 and a TypeScript-aware bundler. The source CLI remains development tooling. Candidate builds remain private qualification artifacts; they do not restrict publication of the source packages.

Agent instructions and evergreen guides now include both renderers and both stacks in release scope and point to manifests/registry checks instead of repeating obsolete publication holds. Dated qualification records retain their original evidence limits.

Source changes: #253

Remaining stale instruction correction: #255

All seven registry SHA-512 integrity values match the reviewed release tarballs, rebuilt from merged source bcfdbb0dcb633a5df5bd5c2072f703d9d6d6ad13. The attached artifact manifest records exact digests without local paths. Both stack recipes passed anonymous strict npm installation without local SAGA overrides, strict all-entry TypeScript compilation, exact sibling/runtime checks, browser builds and separate Node server builds. The attached consumer lockfiles preserve those registry resolutions.

The release source passed independent exact-head review and all required CI checks. Full local verification passed 2,659 headless tests and 1,095 browser cases across workspace, installed consumers and the retained Lynx fixture. The documentation correction passed independent exact-head review and its documentation checks.

Existing latest tags were preserved; next is 0.7.7-rc.1 for all seven packages. npm also assigned latest=0.7.7-rc.1 to the two newly created Lit packages, their only version. This is a release candidate, not a stable-version promotion. This prerelease does not imply application deployment or new named-host acceptance.