Agent-Skills.md

Agent Skills: assistant-ui Update

Upgrades an existing assistant-ui project to current releases and executes the resulting migrations. Use when the user wants to update, upgrade, bump, or migrate @assistant-ui/react, @assistant-ui/react-ai-sdk, ai, or @ai-sdk/react, hits peer-dependency conflicts or post-upgrade type errors, or must apply renamed APIs after a version jump. Detects installed versus latest versions via npm ls / npm view, then routes through breaking-change references for each jump (AI SDK v4/v5 to v6; assistant-ui 0.8.x to 0.14.x): useAssistantApi to useAui, runtime.threadList to runtime.threads, ThreadPrimitive.ViewportSlack removal, the primitives components prop to children render functions, toDataStreamResponse to toUIMessageStreamResponse, maxSteps to stopWhen: stepCountIs(n). Runs npx assistant-ui@latest upgrade, pnpm/npm add @latest, and npx tsc --noEmit to verify. For a first-time install or fresh scaffold (not an upgrade) use setup instead.

UncategorizedID: assistant-ui/skills/update

Repository

assistant-ui/skills
assistant-ui
152

Install this agent skill to your local

pnpm dlx add-skill https://github.com/assistant-ui/skills/tree/HEAD/assistant-ui/skills/update

Skill Files

Browse the full folder contents for update.

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assistant-ui/skills/update/SKILL.md

Skill Metadata

Name
update
Description
"Upgrades an existing assistant-ui project to current releases and executes the resulting migrations. Use when the user wants to update, upgrade, bump, or migrate @assistant-ui/react, @assistant-ui/react-ai-sdk, ai, or @ai-sdk/react, hits peer-dependency conflicts or post-upgrade type errors, or must apply renamed APIs after a version jump. Detects installed versus latest versions via npm ls / npm view, then routes through breaking-change references for each jump (AI SDK v4/v5 to v6 to v7; assistant-ui 0.8.x to 0.15.x): aui.thread() accessor calls to aui.thread properties, removal of the legacy context hooks useAssistantRuntime/useThreadRuntime/useThread/useMessage/useComposer in favor of useAui and useAuiState, s.tools.tools to s.tools.toolUIs, the groupPartByType mcp-app key to standalone-tool-call, useAssistantApi to useAui, runtime.threadList to runtime.threads, ThreadPrimitive.ViewportSlack removal, the primitives components prop to children render functions, toDataStreamResponse to toUIMessageStreamResponse, maxSteps to stopWhen: stepCountIs(n). Runs npx assistant-ui@latest upgrade, npx assistant-ui@latest update, npx assistant-ui@latest doctor, and npx tsc --noEmit to verify. For a first-time install or fresh scaffold (not an upgrade) use setup instead."

assistant-ui Update

Always verifies against npm ground truth and GitHub commits.

References

Phase 1: Detect Versions

Get Ground Truth

npm ls @assistant-ui/react @assistant-ui/react-ai-sdk ai @ai-sdk/react 2>/dev/null

npm view @assistant-ui/react version
npm view @assistant-ui/react-ai-sdk version
npm view ai version

Version Analysis

Current latest: @assistant-ui/react 0.15.x, @assistant-ui/react-ai-sdk 1.4.x, assistant-stream 0.3.x, @assistant-ui/core 0.3.x, @assistant-ui/store 0.3.x.

| Package | Check For | |---------|-----------| | ai | < 6.0.0 → needs AI SDK v6 migration | | @assistant-ui/react | < 0.15.0 → aui scope accessors become properties; legacy context hooks removed; s.tools.tools → s.tools.toolUIs; "mcp-app" group key → "standalone-tool-call" | | @assistant-ui/react | < 0.14.0 → primitives components prop replaced by children render functions; deprecated hooks/aliases removed | | @assistant-ui/react | < 0.13.0 → ThreadPrimitive.ViewportSlack removed (top-anchor changes) | | @assistant-ui/react | < 0.12.0 → unified state API (useAui/useAuiState/useAuiEvent/AuiIf) | | @assistant-ui/react | < 0.11.0 → runtime rearchitecture | | @assistant-ui/react | < 0.10.0 → ESM only | | @assistant-ui/react | < 0.8.0 → UI split (shadcn registry) | | @assistant-ui/react-ai-sdk | < 1.0.0 → needs AI SDK v6 first |

@assistant-ui/react-ai-sdk 1.4.x also supports AI SDK v7; v6 remains supported, so an ai@7 bump is optional and independent of the assistant-ui upgrade.

Phase 2: Route to Migration

AI SDK < 6.0.0?
├─ Yes → See ./references/ai-sdk-v6.md
└─ No
   └─ assistant-ui outdated?
      ├─ Yes → See ./references/assistant-ui.md
      └─ No → Already up to date

Migration Order

  1. AI SDK first (if < 6.0.0) - Required for @assistant-ui/react-ai-sdk >= 1.0
  2. assistant-ui second - Apply breaking changes for version jump
  3. Verify - Type check, build, test

Phase 3: Execute

Update Packages

The CLI knows which assistant-ui packages are installed and bumps them together:

npx assistant-ui@latest update          # add --dry to print the command instead

Equivalent manual form (AI SDK packages are not covered by update):

pnpm add @assistant-ui/react@latest @assistant-ui/react-ai-sdk@latest ai@latest @ai-sdk/react@latest

npm install @assistant-ui/react@latest @assistant-ui/react-ai-sdk@latest ai@latest @ai-sdk/react@latest

Apply Codemods

npx assistant-ui@latest upgrade         # add -d for a dry run, -p to print transformed files

Then apply the remaining hand migrations from the references for the version jump.

Verify

npx assistant-ui@latest doctor
npx tsc --noEmit
pnpm build

Troubleshooting

"Peer dependency conflict"

Type errors after upgrade

  • Consult breaking changes reference
  • Check specific migration guide

Runtime errors

  • Verify API patterns match new version
  • Check for renamed/moved APIs