Patch Changes

• be7f05a: Add fingerprintTools and detectToolDrift to detect MCP tool-definition drift ("rug pull"). Pin a tool set's server-controlled fields (string description, input schema, title) at trust time with fingerprintTools, then diff later fetches with detectToolDrift to catch injected descriptions or widened schemas before passing tools to the model. Baseline storage and the drift response remain the app's responsibility.

• ee55a07: Preserve tool approval signatures when approvals transition to responded.

• aad737d: Use own-property checks when resolving per-tool approvals so tool names and approval ids that match inherited object properties (e.g. constructor, toString, valueOf, __proto__) are treated as unconfigured/absent.

  • @ai-sdk/policy-opa: wrapMcpTools builds its per-tool map with a null prototype and reads supplied approvals via an own-property check, and shadow guards its per-tool map lookup the same way.
  • ai: tool and tool-context lookups keyed by a model- or client-supplied name now go through an own-property check (getOwn), so a name matching an inherited object property resolves to "no such tool"/"unconfigured" instead of a prototype value. This covers the approval path (per-tool approval resolution and replay re-validation) as well as tool-call parsing, execution, streaming callbacks, and UI message conversion/validation. The human-in-the-loop approval matching (collectToolApprovals) and streaming tool-name maps are built with a null prototype so a client-supplied id that matches an inherited property no longer slips past the "unknown approval" / "tool call not found" guards.

• 0f93c57: feat (video): support video (not just image) reference inputs in inputReferences for reference-to-video generation

• Updated dependencies [e12411e]

• Updated dependencies [5d894a7]

• Updated dependencies [fdb6d5d]

• Updated dependencies [0f93c57]

• Updated dependencies [d25a084]

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