## What
1. Add `suppressHydrationWarning` to `<body>` across **all 14
integration demo templates**
(`examples/integrations/*/src/app/layout.tsx`).
2. Fix a pre-existing **double-escaped Windows path** bug in the parity
manifest's `packageJsonOverrides`.
## Why (hydration)
**Mike Ryan hit a hydration error on first load of a fresh
`langgraph-python` init — caused by his Grammarly browser extension.**
Grammarly (and similar extensions) inject attributes onto `<body>`
*before* React hydrates:
```
data-new-gr-c-s-check-loaded="9.98.0"
data-gr-ext-installed=""
```
Those attributes are in the client DOM but absent from the server HTML,
so Next.js reports:
> A tree hydrated but some attributes of the server rendered HTML didn't
match the client properties.
It's a **false positive** — the app works, and end users (without dev
extensions) never see it — but it's a red console error on the first
load of our flagship eval/showcase templates, which is a poor first
impression.
## Fix (hydration)
`suppressHydrationWarning` on `<body>` is the React/Next.js-recommended
escape hatch for this. It is **scoped and one level deep**: it only
relaxes the check for `<body>`'s *own* attributes/text — **everything
rendered inside `<body>` (the whole app) is still fully
hydration-checked** — and `<body>`'s only attribute here is a static
`className`, so none of our own markup is masked. An inline comment
documents this so a future maintainer who adds dynamic `<body>`
attributes knows the check is relaxed.
`agent-spec` already had `suppressHydrationWarning` on `<html>`; the
Grammarly attributes land on `<body>`, so it needed the body-level
relaxation too (the `<html>` one is a level up and doesn't cover
`<body>`'s attributes).
## Commits
1. `b1fa482a7` — north-star (`langgraph-python`) + parity instances
(`langgraph-js`, `langgraph-fastapi`, `strands-python`) via `pnpm
parity:sync`.
2. `9f9c415d9` — the non-parity templates (not tracked by
`_parity/manifest.json`): `adk`, `agno`, `crewai-crews`, `crewai-flows`,
`llamaindex`, `mastra`, `ms-agent-framework-dotnet`,
`ms-agent-framework-python`, `pydantic-ai`, `agent-spec`. *(The repo's
`oxfmt` pre-commit hook also collapsed some multiline `<CopilotKit …>`
JSX in these files — standard auto-format on touched files; the only
semantic change is the suppression.)*
3. `7d60e49de` — parity manifest path-escaping fix (see below).
## The manifest bug (commit 3)
While syncing I found the `langgraph-js` and `strands-python`
`packageJsonOverrides` double-escaped the Windows `.bat` fallback,
producing `scripts\\run-agent.bat` (two backslashes) instead of
`scripts\run-agent.bat`:
- `langgraph-js/package.json` had already been synced with the broken
value.
- `strands-python/package.json` was still correct — and `parity:sync`
would have **corrupted** it on the next run (which is what surfaced
this).
Fixed the three overrides and re-ran `parity:sync`, which corrects
`langgraph-js/package.json` and leaves `strands-python`'s correct value
intact.
## Test plan
- [x] `pnpm parity:verify` → 0 errors
- [x] lefthook pre-commit green on all 3 commits (lint + `packages/**`
tests + commitlint)
- [x] All 14 templates confirmed to have body-level
`suppressHydrationWarning`
- [ ] Reviewer with Grammarly installed: run/`init` a template and
confirm no hydration error on first load
Extend the same `<body suppressHydrationWarning>` fix to the integration
templates that are not tracked by examples/integrations/_parity/manifest.json,
so they don't surface a Grammarly-style hydration mismatch on first load:
adk, agno, crewai-crews, crewai-flows, llamaindex, mastra,
ms-agent-framework-dotnet, ms-agent-framework-python, pydantic-ai, agent-spec.
agent-spec already had suppressHydrationWarning on <html>; the Grammarly
attributes land on <body>, so it needs the body-level relaxation too (the
<html> one is one level up and does not cover <body>'s attributes).
The locked-state card told users to add an Intelligence license with
`copilotkit add-intelligence`, but that command only drops the
Intelligence overlay and does not issue a license (and is not yet wired
into the CLI dispatch). The command that issues a license key is
`copilotkit license`.
Follow-up to #3607 — the same problematic `import { v0_8 } from "@a2ui/lit"`
pattern existed in 4 example files. Switch to `@a2ui/lit/0.8` subpath for value
imports and remove an unused v0_8 import. Also broaden the lint rule glob to
cover `examples/` and prevent regression.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Run prettier on ~1,865 files across examples/ to match the monorepo's
formatting standards. These files were imported as-is from standalone
repos that used different prettier configs.
Mike Ryan