llamaindex, agno, and claude-sdk-python emit AG-UI REASONING_MESSAGE_*
events but pinned @ag-ui/client ^0.0.43, whose @ag-ui/core discriminated
union lacks the REASONING_MESSAGE_* variants — the frontend threw
invalid_union_discriminator and the reasoning demo broke. Pin all three
to exact 0.0.48 (matching the claude-sdk-typescript fix in #5323),
regenerate their lockfiles so @ag-ui/core resolves to 0.0.48 with zero
0.0.43 nodes, and ratchet the validate-pins drift baseline down from 60
to 57 to reflect the now-exact pins. Verified locally on the built-image
showcase rig: D5 green and the D6 reasoning-display probe passes for all
three backends with zero invalid_union_discriminator.
Bump canonicalCopilotKitVersion 1.59.2 -> 1.59.4 and pin every
integration's @copilotkit/* to 1.59.4 (locks regenerated). Keeps the
whole showcase on one version instead of letting the langgraph A2UI
demos deviate. Existing per-slug overrides (built-in-agent pkg.pr.new,
ms-agent-harness-dotnet 1.57.2) unchanged.
The "next" dist-tag was a workaround for Docker builds that can't resolve
workspace:* — but "next" has gone stale (1.55.2-next.1) while "latest" is
at 1.56.5. Renovate doesn't cover showcase/, so these never auto-bumped.
Switch all 19 showcase package.json files to "latest".
Replace sys.path.insert hacks in Python agent files with direct
imports via symlinks to shared/{python,typescript}/tools.
Update Dockerfiles, entrypoints, and configs to support the new
symlink-based tool resolution. Add PARITY_NOTES for frameworks
that have known gaps.
The showcase framework directories better reflect their role as
integration examples rather than distributable packages.
Renames showcase/packages/ -> showcase/integrations/ and updates
the test docker-compose file reference accordingly.
Jordan Ritter