<!-- Need help? Refer to the design review meeting guidelines: https://github.com/ethereum-optimism/design-docs --> **Title of Meeting** <!-- One sentence overview of the meeting --> Requested messenger changes that provides generally useful propagation of internal ctx. And a gas receipt producing a trace of execution **Date, Time and Duration** <!-- Consider using https://www.worldtimebuddy.com/ to help schedule Meetings default to 30 minutes, please ask for more if necessary --> Wonderland requested after April 30th. **Link to design doc** <!-- Include a link to the PR for the design doc or other links to be discussed --> https://github.com/ethereum-optimism/design-docs/pull/266 **Additional Context** <!-- Any additional information that the attendees should know ahead of time? --> For context in how this gas receipt can be used external to the messenger: https://github.com/ethereum-optimism/design-docs/pull/272 **Requested Attendees** <!-- Who should attend the meeting? --> @tremarkley @tynes @skeletor-spaceman @agusduha Likely useful from a contracts perspective? @clabby @smartcontracts Optional: @karlfloersch