[saddlepaddle]

Why

Claude Code and Codex were npm install -g'd into the image. A box is a fork of a golden built from that image, so it keeps the version it was created with forever. Codex's own updater fails on a box too, because the npm prefix is owned by root. That's why Kunal is stuck on an old Codex.

What

Both CLIs move into the bundle, the part a box already updates on every wake:

• bundle/assets.json: two new rows.
  • claude is the native linux-x64 binary from the stable channel (2.1.280).
  • codex is Codex's standalone linux package from its GitHub release (0.159.2).
  • Each row's sha matches the checksum the vendor publishes.
• bundle/steps/install-agent-clis.sh:
  • Links claude into /usr/local/bin.
  • Unpacks Codex into /opt/codex/<sha>/ and links bin/codex. Codex finds its bundled rg, bwrap and code-mode host through the codex-package.json next to the binary.
  • Removes the old npm installs from existing boxes.
• src/image.ts: removes the npm line. A fresh image still has both CLIs, because the image build runs every step.
• bun run assets claude|codex [version]: produces the rows. With no version it takes stable (Claude) or latest (Codex).

To update from now on: bun run assets codex, then bun run build --publish locally to upload the asset, then merge. Every box installs the new version on its next boot. A box that is already running keeps the old version until it stops.

Both assets and the bundle are already on cdn.superset.sh, so the boot-twice CI job can fetch them.

Verification

• Ran the step in a node:24-bookworm-slim container set up like an existing box, with 2.1.257 / 0.152.0 installed through npm:
  • It moved the box to 2.1.280 / 0.159.2 and removed the npm copies.
  • A second run changed nothing.
• codex doctor as a non-root user:
  • Reports install method other, with the bundled rg found.
  • Update action is "manual", so Codex does not offer a self-update that would fail.
• bun run lint, typecheck and bun test in packages/sandbox all pass.
• Still owed: waking a real box after merge and checking claude --version, codex --version and boot.log.

---

Summary by cubic

Claude and Codex were pinned to the version a box was forked with, since both were npm install -g'd at image build and that layer never changes on a live box. Codex's own updater also failed because the npm prefix is root-owned. Both CLIs now move into the bundle, which every box updates on wake.

• Pins claude (2.1.280 native linux-x64 binary) and codex (0.159.2 standalone package) as bundle assets with vendor-published checksums.
• Adds an install-agent-clis bundle step that links claude and unpacks Codex into /opt/codex/<sha>/, cleaning up the old npm installs on existing boxes.
• Removes the npm install line from the image build; fresh images still get both CLIs because the bundle step runs on boot.
• Adds bun run assets claude|codex [version] to produce the asset rows; a version bump is one assets.json row plus a local bun run build --publish to upload the asset.
• Any running box keeps its old version until it stops; the new version is installed on its next boot.

^{Written for commit 49ada01. Summary will update on new commits.}

Summary by CodeRabbit

• New Features
  • Sandbox environments now include Claude Code 2.1.280 and OpenAI Codex 0.159.2, alongside the existing Superset CLI.
  • Claude Code and Codex are available as command-line tools at the versions pinned to the sandbox bundle. Both are checked after installation to confirm they’re available.

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📝 Walkthrough

Walkthrough

The sandbox now produces pinned Claude Code and Codex assets and installs them through a bundle step. Image construction no longer installs these CLIs globally.

Changes

Agent CLI bundle

Layer / File(s)	Summary
Produce pinned CLI assets packages/sandbox/src/assets/produce.ts, packages/sandbox/bundle/assets.json	The producer accepts optional versions for Claude and Codex, validates downloaded checksums, and records asset metadata. The bundle manifest adds Claude Code 2.1.280 and Codex 0.159.2.
Install CLI assets in the bundle packages/sandbox/bundle/steps/install-agent-clis.sh, packages/sandbox/bundle/steps.json, packages/sandbox/src/image.ts, packages/sandbox/bundle/rootfs/etc/profile.d/superset.sh	A new bundle step selects staged assets by hash, installs and links both CLIs, and prints their versions. Image construction no longer installs them globally. The profile comment describes the pinned CLI self-update restriction.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant BundleStep
  participant Installer as install-agent-clis.sh
  participant StagedAssets
  participant LocalBin as /usr/local/bin
  BundleStep->>Installer: Run CLI installation step
  Installer->>StagedAssets: Match staged asset hashes against assets.tsv
  StagedAssets-->>Installer: Provide selected Claude and Codex assets
  Installer->>LocalBin: Link Claude and Codex executables
  Installer-->>BundleStep: Print CLI versions

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Merge Risk: ⚪ Minimal · up to 49ada

The pinned CLI bundle installation is mergeable; no actionable current-head risk was verified.

Security Architecture Review

Security architecture risk: 🟡 Moderate · up to 49ada

A failed update can remove the working agent installations before their replacements are available. Repeated failures can then stop automatic recovery. Checksum validation reduces executable-substitution risk, but it does not make this migration reversible.

Retained concerns

• Medium · reliability · inferred: The wake-time migration removes both previous npm installations before validating the replacement assets. Missing assets or interrupted installation can leave unavailable or mixed-version CLIs while boot continues. There is no rollback, and three failures disable further installation attempts until the step version changes, so restored asset availability alone may not recover affected boxes.

Security review details

Security Blast Radius

• inferred — A faulty pinned release or failed asset rollout can affect every box adopting the affected bundle. A compromised approved executable would run with root authority inside those boxes during validation. Cross-tenant control-plane or data-store access was not established by the inspected source.

Trust Boundaries and Controls

• observed — Vendor digests constrain produced bytes, runtime SHA-256 checks reject substituted downloads, and publication uses credential-authenticated storage requests. These controls do not independently establish production IAM scope or authorization to change the desired bundle hash.
• inferred — The desired bundle already supplies root-executed setup scripts and system files, so an identity authorized to select arbitrary bundles already held broad box authority before this PR. The change adds agent binaries to that existing update mechanism rather than demonstrating a new tenant-to-root route.

Resilience and Maintainability Implications

• observed — Failures are logged and persisted, but the runner intentionally continues boot and disables repeatedly failing steps. This pre-existing policy becomes consequential for agent recovery because the new step destructively replaces previously image-installed providers.

Hardening Proposals

• proposed — Prepare and validate both replacements before deleting previous installations, retain last-known-good providers until commit, and provide a recovery path after asset availability returns. Consider running vendor version checks without boot credentials and without root where feasible.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change and follows conventional commit format.
Description check	✅ Passed	The description explains the problem, implementation, testing performed, and remaining validation. It uses different headings from the template and omits the checklist, but it provides the required co…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
Review comments at @packages/sandbox/bundle/steps/install-agent-clis.sh:
- Line 39: Update the extraction flow around tar so it extracts into a temporary
directory beside $target, moves that directory to $target only after extraction
succeeds, and removes the temporary directory on failure; ensure retries cannot
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• packages/sandbox/bundle/assets.json
• packages/sandbox/bundle/rootfs/etc/profile.d/superset.sh
• packages/sandbox/bundle/steps.json
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• packages/sandbox/src/assets/produce.ts
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