Best possible solution:

Close this stale branch; land the focused gog skill metadata fix in #95019 for the current install failure, and use a maintainer-sponsored current-Dockerfile PR only if gogcli should become a common-image default.

Do we have a high-confidence way to reproduce the issue?

No high-confidence runtime reproduction is present. Source inspection shows the current common image does not install gogcli, but the PR does not establish that the shared common image is expected to include it or provide Docker build/run proof.

Is this the best way to solve the issue?

No. As submitted, this is not the best fix because it edits an obsolete path and broadens common-image defaults; the current install failure is better handled by the focused skill metadata PR, while any default-image addition needs a new maintainer-approved current-Dockerfile proposal.

Security review:

Security review needs attention: The diff adds a new Homebrew package install to the common sandbox image, which needs supply-chain and build reliability acceptance before any replacement lands.

• [low] Review the new image package source — Dockerfile.sandbox-common:45
brew install gogcli would make the common sandbox image depend on live Homebrew formula resolution during build; maintainers should accept that supply-chain surface or choose a pinned/checksummed install path in a new current-Dockerfile PR.
  Confidence: 0.82

AGENTS.md: found and applied where relevant.

What I checked:

• live PR state: Live GitHub reports this external PR is open, conflicting/DIRTY, and changes only Dockerfile.sandbox-common. (Dockerfile.sandbox-common:45, 79f326cf482d)
• PR diff: The branch adds brew install gogcli and two global PATH file writes to the old root Dockerfile. (Dockerfile.sandbox-common:45, 79f326cf482d)
• current active Dockerfile: Current main builds the common sandbox image from scripts/docker/sandbox/Dockerfile.common, not the root Dockerfile path this PR edits. (scripts/docker/sandbox/Dockerfile.common:1, f8675b3b70d3)
• current setup entry point: scripts/sandbox-common-setup.sh passes -f scripts/docker/sandbox/Dockerfile.common to Docker, so the PR's file cannot update the active setup path as submitted. (scripts/sandbox-common-setup.sh:30, f8675b3b70d3)
• current PATH behavior: Current main already places Bun and Linuxbrew directories on Docker ENV PATH; the PR's extra global PATH writes are a separate environment behavior change, not a simple missing current-path edit. (scripts/docker/sandbox/Dockerfile.common:22, f8675b3b70d3)
• latest release path check: The latest release tag contains scripts/docker/sandbox/Dockerfile.common and scripts/sandbox-common-setup.sh, with no root Dockerfile.sandbox-common path listed. (scripts/docker/sandbox/Dockerfile.common:1, 844f405ac1be)

Likely related people:

• vincentkoc: Recent/current history attributes the active common sandbox Dockerfile and setup script path to Vincent Koc's Docker/release work. (role: current path contributor; confidence: high; commits: 844f405ac1be, 459edec9badc, 6d5e142b9312; files: scripts/docker/sandbox/Dockerfile.common, scripts/sandbox-common-setup.sh, Dockerfile.sandbox-common)
• steipete: History shows Peter Steinberger introduced the old root Dockerfile.sandbox-common surface that this PR edits. (role: original sandbox common contributor; confidence: high; commits: 852c8979563c; files: Dockerfile.sandbox-common, scripts/sandbox-common-setup.sh)
• jacobtomlinson: Jacob Tomlinson changed the old sandbox common Dockerfile in earlier broad Dockerfile hardening work, making them relevant context for default-image changes. (role: adjacent Docker hardening contributor; confidence: medium; commits: 63802c111288; files: Dockerfile.sandbox-common)

Codex review notes: model internal, reasoning high; reviewed against f8675b3b70d3.

• The egg game starts only after the PR passes the real-behavior proof check.
• Before that, no creature or rarity is rolled. The treat waits for real proof.
• This is still just collectible flavor: proof affects review readiness, not creature quality.