Harden pnpm installs against supply-chain attacks

[kelvinkipruto]

Motivation

• Reduce supply-chain exposure during pnpm installs by applying the same hardening settings used in the UI repo adapted to this repository's package-level pnpm config.

Description

• Added blockExoticSubdeps: true to the top-level pnpm block in package.json to block exotic transitive dependency sources.
• Added minimumReleaseAge: 1440 to delay adoption of very new releases by 24 hours.
• Added trustPolicy: "no-downgrade" to prevent trust-regression downgrades.
• Kept the existing onlyBuiltDependencies allowlist (@sentry/cli, esbuild, sharp, unrs-resolver) intact.

Testing

• Verified package.json parses as valid JSON with node -e "JSON.parse(require('fs').readFileSync('package.json','utf8')); console.log('package.json valid')", which succeeded.
• No additional automated test suites were executed in this change.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
PromiseTracker	Ready	Preview, Comment	Apr 7, 2026 8:14am

[kelvinkipruto]

@codex Review
@claude Review

[claude]

Claude finished @kelvinkipruto's task in 1m 39s —— View job

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Code Review

• Gather context
• Read repo guidelines
• Review package.json changes
• Post review feedback

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The intent here is solid — hardening pnpm against supply-chain attacks is valuable. The diff is small (+4/-1 in package.json) and the existing onlyBuiltDependencies allowlist is preserved correctly. However, there are some concerns about whether two of the three new settings are actually recognized by pnpm in the package.json pnpm field.

blockExoticSubdeps: true ✅

This is a valid package.json pnpm field setting (introduced in pnpm v9). It prevents transitive dependencies from using non-registry sources (git URLs, file paths, etc.). The project's engines field requires pnpm ^9 || ^10, so this will be respected.

minimumReleaseAge: 1440 ⚠️

Concern: The pnpm package.json pnpm field supports a specific set of keys (overrides, packageExtensions, onlyBuiltDependencies, blockExoticSubdeps, etc.). minimumReleaseAge is documented as an .npmrc setting (minimum-release-age=1440), not a package.json pnpm block setting. pnpm may silently ignore unrecognized keys in the pnpm block, meaning this setting might have no effect as written.

Suggested fix: Move to .npmrc instead:

minimum-release-age=1440

Fix this →

trustPolicy: "no-downgrade" ⚠️

Concern: trustPolicy does not appear in the official pnpm configuration documentation for either the package.json pnpm field or .npmrc settings. This may be a non-existent pnpm config key that is silently ignored. The Vercel deployment succeeding only confirms the JSON is valid — pnpm doesn't error on unrecognized package.json pnpm keys.

Please verify this option exists in the pnpm configuration docs before merging. If it's not a real pnpm setting, it should be removed to avoid giving a false sense of security.

Fix this →

Minor: JSON placement

blockExoticSubdeps and trustPolicy are placed before and after onlyBuiltDependencies respectively. No functional issue, but alphabetical order would be slightly more readable.

Summary

Setting	Valid location	Status
blockExoticSubdeps: true	package.json pnpm field	✅
minimumReleaseAge: 1440	.npmrc only	⚠️ Verify location
trustPolicy: "no-downgrade"	Unknown	⚠️ Verify existence

Recommend verifying the latter two against the pnpm docs before merging, or they may be no-ops.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 49fe21dc3b

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[kelvinkipruto]

@claude @codex Review

[claude]

Claude finished @kelvinkipruto's task in 1m 6s —— View job

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---

This PR has evolved since the initial commits — the settings ended up in .npmrc (correct location, kebab-case) rather than package.json's pnpm block as the description states. The description is stale but the implementation is sounder. Here's the full review:

.npmrc changes

+block-exotic-subdeps=true
+minimum-release-age=1440
+trust-policy=no-downgrade

block-exotic-subdeps=true ✅

Valid pnpm npmrc setting, introduced in pnpm v10.26.0. The pnpm version has been bumped to 10.33.0, so this will be enforced. Good.

minimum-release-age=1440 ✅

Valid pnpm npmrc setting. Delays installs of packages newer than 24 hours (1440 minutes), giving time for malicious releases to be detected. Correctly placed in .npmrc.

trust-policy=no-downgrade ⚠️

This is the main concern. The valid documented values for pnpm's trust-policy are:

• trustAll — all lifecycle scripts are trusted
• noTrust — no lifecycle scripts are trusted (requires explicit onlyBuiltDependencies)

no-downgrade is not a documented valid value for trust-policy. pnpm will likely either throw an error or silently ignore an unrecognized value, meaning this setting provides no actual protection. It gives a false sense of security.

Fix this →

package.json — pnpm version bump

-"packageManager": "pnpm@10.16.1"
+"packageManager": "pnpm@10.33.0"

This directly addresses the Codex reviewer's concern: block-exotic-subdeps requires v10.26.0+. The jump from 10.16.1 → 10.33.0 is a significant version range (~17 minors). It's worth confirming CI and Vercel are using the version from packageManager (Corepack) rather than a pinned version from another source. The Vercel build above appears to be working.

PR Description accuracy

The description says these settings were added to package.json's pnpm block — that's inaccurate. They are in .npmrc. The description should be updated.

Summary

Setting	Location	Status
block-exotic-subdeps=true	.npmrc	✅ Valid, enforced with pnpm 10.33.0
minimum-release-age=1440	.npmrc	✅ Valid
trust-policy=no-downgrade	.npmrc	⚠️ no-downgrade is not a documented value — likely a no-op
pnpm bump 10.16.1 → 10.33.0	package.json	✅ Necessary for block-exotic-subdeps

Recommendation: Remove trust-policy=no-downgrade (or replace with trust-policy=noTrust if the intent is to rely solely on onlyBuiltDependencies). The rest of the changes look good.

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Keep them coming!

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• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[kelvinkipruto]

@claude From the docs:

trustPolicy
Added in: v10.21.0
Default: off
Type: no-downgrade | off
When set to no-downgrade, pnpm will fail if a package's trust level has decreased compared to previous releases. For example, if a package was previously published by a trusted publisher but now only has provenance or no trust evidence, installation will fail. This helps prevent installing potentially compromised versions. Trust checks are based solely on publish date, not semver. A package cannot be installed if any earlier-published version had stronger trust evidence. Starting in v10.24.0, prerelease versions are ignored when evaluating trust evidence for a non-prerelease install, so a trusted prerelease cannot block a stable release that lacks trust evidence.

[claude]

Claude finished @kelvinkipruto's task in 28s —— View job

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Correction — trust-policy=no-downgrade is valid ✅

• Read official pnpm docs shared by @kelvinkipruto
• Verify current .npmrc state
• Update review

Thank you for the correction! My previous review was wrong to flag trust-policy=no-downgrade as undocumented. Per the official pnpm docs:

trustPolicy — Added in: v10.21.0, Type: no-downgrade | off
When set to no-downgrade, pnpm will fail if a package's trust level has decreased compared to previous releases.

This is a genuine protection against supply-chain attacks where a trusted publisher's package gets compromised. With pnpm bumped to 10.33.0 (≥ v10.21.0), this will be enforced.

Revised Summary

All three .npmrc settings are valid and effective:

Setting	Min pnpm version	Project version	Status
block-exotic-subdeps=true	v10.26.0	10.33.0	✅ Valid & enforced
minimum-release-age=1440	—	10.33.0	✅ Valid & enforced
trust-policy=no-downgrade	v10.21.0	10.33.0	✅ Valid & enforced

The pnpm version bump to 10.33.0 in package.json is what makes all of this work — without it, block-exotic-subdeps (v10.26.0+) and trust-policy (v10.21.0+) would not be active. The PR is well-constructed.

The only remaining minor note is that the PR description still references package.json's pnpm block as the location of these settings, when they actually live in .npmrc — but that's a cosmetic issue and not a blocker.

This PR looks good to merge.