A starter scaffolded with `--framework mastra` accepted a chat message and
never answered. The run aborted server-side with `Thread <id> not found`.
`@ag-ui/mastra` writes the UI's shared state into Mastra working memory
before it streams a turn (`syncInputStateToWorkingMemory`). That write is
unguarded and never creates the thread, because it assumes the
resource-scoped store, which upserts. The starter was the one Mastra agent
in this repo that set `scope: "thread"`, which routes the same write to
thread metadata and requires the thread row to exist. On the first turn of a
conversation it does not, so `@mastra/memory` throws and the run dies before
the model is called.
Managed Intelligence made that certain rather than likely: the Intelligence
run handler swaps the client thread id for a platform-canonical one, which
the Mastra store has never seen. That is also why two different thread ids
appear in the same failure.
Verified against @mastra/core 1.41.0, @mastra/memory 1.0.1-alpha.1 and
@ag-ui/mastra 1.1.2: thread scope throws on a fresh thread, resource scope
writes, reads back, reaches the agent's system message, and stays per
conversation because the bridge derives the resource id from the thread id.
Every other Mastra agent here omits `scope`, so this aligns the starter with
them. The gate is a new contract test in the parity workflow's suite.
Left upstream: the adapter's local branch is still unguarded, so a developer
who chooses thread scope hits the same abort. Its remote branch already
creates the thread and retries. Worth a follow-up in ag-ui.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Conflict resolutions:
- contract test: keep the rollout's parameterized version and add
strands-python to migratedIntegrations/appRoots (60/60 passing) in
place of her bespoke MIGRATED_INSTANCES file
- parity manifest: rollout's version with strands' three threads-shield
allowances removed (mirrors the langgraph-fastapi migration); parity
verify green — strands now 88 tracked files, zero drift
- package-lock: regenerated at 1.59.3 (a2ui-renderer stays 1.56.5,
the family-wide pin shared with the north-star)
Also rides: her react-core A2UIMessageRenderer test flake fix
(act -> waitFor), kept intentionally.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Conflict resolution: take the rollout's contract test and append the
agentcore describe block (CDK lambda runtime gate, Vite frontend with
import.meta.env gate, docker env wiring). Bump both agentcore
package.jsons 1.59.1 -> 1.59.3 + regen lockfiles. 54/54.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Conflict resolution: take the rollout's parameterized contract test and
append the a2a-a2ui bespoke tests (namespaced helper, 1.59.3 pins).
Bump a2a-a2ui @copilotkit/* 1.59.1 -> 1.59.3 + regen lockfile. 49/49.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- bump a2a-middleware, mcp-apps, agent-spec from 1.59.1 (their verified
pre-revert state) to 1.59.3 to match the starters
- regenerate package-lock.json for the 11 examples whose package.json
changed (drawer deps re-added on starters, version bumps on the three)
- update the migration contract test's version assertions to 1.59.3
(43/43 passing); oxfmt pass
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Restores #5151 (north-star + batch 1 + crewai-flows + llamaindex),
#5196 (pydantic-ai), #5205 (a2a-middleware), #5211 (mcp-apps), reconciled
onto the current main baseline rather than the pre-revert tree:
- keep main's 1.59.3 pins, AGENT_URL normalization, default agent keys,
useConfigureSuggestions, available:false, useRenderTool
status/parameters API, call-time agent.state reads, and crewai-crews'
rebuilt page (not yet threads-migrated)
- graft the threads layer (drawer/gate/provider, env-gated route
intelligence block, next.config gate, env docs, drawer deps) on top
- drop threads-era sidebar suggestions props where main now registers
suggestions via useConfigureSuggestions (or omits them)
- fix the stale pydantic-ai doc link main reintroduced in ms-af-dotnet
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Post-merge fix: add the missing examples/integrations/mcp-apps/.env.example
(+ .gitignore negation, crewai-flows precedent) — the contract test
'mcp-apps documents the local Intelligence environment' was failing
because the file was never added. 37/37 passing on the merged tree.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Conflict resolution: take main's 4-entry migratedIntegrations array and
keep the a2a-middleware-specific contract tests + helper (a2a-middleware
uses app/ root + custom chat, so it doesn't fit the parameterized
src/app contract). 31/31 passing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Conflict + post-merge resolutions:
- integration test (add/add): fold into the parameterized batch-2 contract
test; migratedIntegrations now includes langgraph-fastapi (24/24 pass).
- _parity/manifest.json: keep her langgraph-fastapi allowance removals
(threads-drawer/page.tsx/next.config now fully tracked), but drop the
stale strands-python shielding her branch added (example-layout +
docker-route-override divergence, @copilotkit 1.56.5 packageJsonOverrides)
— strands is already parity-synced at 1.59.1 on main; those overrides
would have made the next parity:sync rewrite it back to 1.56.5.
- parity verify on the merged tree: langgraph-js 82 ok / langgraph-fastapi
91 ok / strands-python 83 ok, zero drift.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Conflict resolutions:
- page.tsx: keep the threads layout; swap the dead v1 sidebar labels
(title/initial) for the v2 keys (modalHeaderTitle 'Popup Assistant' +
welcomeMessageText) the starter smoke asserts, and carry over main's
disableSystemMessage + clickOutsideToClose. Keep her useRenderTool
render({ parameters }) — that is the actual v2 RenderToolProps shape;
main's render({ args }) was a latent runtime bug (args is not a prop).
- package.json: keep the drawer UI deps (class-variance-authority, clsx).
- integration test: fold into the parameterized batch-2 contract test;
migratedIntegrations now crewai-flows + llamaindex + pydantic-ai (18/18).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Conflict resolutions:
- page.tsx: keep the threads layout (drawer + gate + provider) and restore
the v2 sidebar labels (modalHeaderTitle 'Popup Assistant' +
welcomeMessageText) the starter smoke asserts, plus clickOutsideToClose.
- layout.tsx: keep the REST-transport explainer comment.
- integration test: keep the parameterized batch-2 contract test from
crewai-flows and add llamaindex to migratedIntegrations (12/12 pass).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Mike Ryan