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Bug 2047657 - feature: add support for debugging logpoints#100

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juliandescottes merged 2 commits into
mozilla:mainfrom
juliandescottes:bug2047657
Jun 25, 2026
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Bug 2047657 - feature: add support for debugging logpoints#100
juliandescottes merged 2 commits into
mozilla:mainfrom
juliandescottes:bug2047657

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@juliandescottes

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At the moment full breakpoint support is not easy to integrate with the mcp, because it breaks many tools. Instead having logpoints allows the mcp to collect information while running a scenario without breaking the execution.

Ideally the logpoint feature would be built in webdriver-bidi but for the time being we prototype the feature in the MCP layer.

The MCP will set breakpoints and send script.evaluate commands to capture logpoint data, which can be queried out of band by the client.

At the moment full breakpoint support is not easy to integrate with
the mcp, because it breaks many tools. Instead having logpoints allows
the mcp to collect information while running a scenario without breaking
the execution.

Ideally the logpoint feature would be built in webdriver-bidi but for the
time being we prototype the feature in the MCP layer.

The MCP will set breakpoints and send script.evaluate commands to capture
logpoint data, which can be queried out of band by the client.
@juliandescottes

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Adding @lutien to review for the WebDriver BiDi side.

@juliandescottes juliandescottes merged commit 7dbd7d6 into mozilla:main Jun 25, 2026
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3 participants