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npm / @metamask/client-mcp-core

@metamask/client-mcp-core

What changed in @metamask/client-mcp-core 0.2 to 0.11, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-20.

3 breaking13 new APIs and options1 behavior and defaults1 tooling4 fixes and other

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@metamask/client-mcp-core 0.111 changes

New APIs and options 1

@metamask/client-mcp-core 0.102 changes

Breaking changes 1

  • Only runtime values tsx and node are supported; unsupported runtime configuration is rejected with a clear error.

    0.10.0release notes

Fixes and other changes 1

  • CLI project daemon launches are supported on Windows.

    0.10.0release notes

@metamask/client-mcp-core 0.92 changes

New APIs and options 1

Fixes and other changes 1

  • Fixes reporting of mobile element geometry and viewport visibility.

    0.9.0release notes

@metamask/client-mcp-core 0.87 changes

New APIs and options 5

  • Adds the allowFoxCodeMismatch option, forwarded to the consumer's ISessionManager.launch().

    0.8.0release notes

  • Adds the app bundle path option, forwarded as appBundlePath to the consumer's ISessionManager.launch().

    0.8.0release notes

  • Adds the Metro port option, forwarded as metroPort to the consumer's ISessionManager.launch().

    0.8.0release notes

  • Adds the reinstall option, forwarded as reinstall to the consumer's ISessionManager.launch(); consumers own the install behavior.

    0.8.0release notes

  • Adds the app data reset option, forwarded as resetAppData to the consumer's ISessionManager.launch(); consumers own the reset behavior.

    0.8.0release notes

Behavior and default changes 1

  • Defaults platform to 'browser', so consumers no longer need to infer the default.

    0.8.0release notes

Fixes and other changes 1

  • Preserves a consumer-thrown error code when it is a known ErrorCode, rather than replacing every failure with MM_LAUNCH_FAILED, allowing agents to receive precise device and prerequisite failures.

    0.8.0release notes

@metamask/client-mcp-core 0.72 changes

New APIs and options 1

Tooling 1

@metamask/client-mcp-core 0.62 changes

New APIs and options 2

  • Adds the hermes_targets tool for working with mobile Hermes CDP targets.

    0.6.0release notes

  • Adds support for mobile Hermes CDP, enabling developers to use the client with mobile Hermes targets.

    0.6.0release notes

@metamask/client-mcp-core 0.51 changes

New APIs and options 1

  • Adds a tool for intercepting and stubbing browser requests.

    0.5.0release notes

@metamask/client-mcp-core 0.42 changes

New APIs and options 1

  • Exposes a raw CDP command as an escape-hatch tool.

    0.4.0release notes

Fixes and other changes 1

@metamask/client-mcp-core 0.32 changes

Breaking changes 1

  • Replaces the Playwright area snapshot with a CDP accessibility tree.

    0.3.0release notes

New APIs and options 1

@metamask/client-mcp-core 0.21 changes

Breaking changes 1