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fix(provider-core): Homebrew installs behind a native-looking launcher update with brew - #28493
When a provider's launcher sits at a path that looks like a native install but resolves into a Homebrew keg or cask, T3 Code offered the provider's own updater instead of brew upgrade. Example: Claude Code from the claude-code@latest cask, reached through a user-made ~/.local/bin/claude -> /opt/homebrew/bin/claude symlink. That claude update does nothing under Homebrew, so every update ended with "Update command completed, but T3 Code still detects an outdated provider version."
Reproduction on main 6f2e48da38: I ran the real resolveProviderMaintenanceCapabilitiesEffect with Claude's resolver definition against an on-disk layout (a Caskroom or Cellar binary, a <home>/.local/bin/claude symlink to it, and a keg brew stub). Both layouts got <home>/.local/bin/claude update. When the same keg was reached through a non-native bin directory, the result was brew upgrade.
Change
resolvePackageManagedProviderMaintenance returned the native updater before it checked Homebrew ownership of the real path. I moved the existing homebrewOwnershipFromCommandPath(context.realCommandPath) lookup above the native-launcher branch, and that branch now applies only when the real path is not in a Homebrew keg. A Homebrew-owned launcher then goes through the normal order: npm-in-keg proof, the mise-keg exclusion, then brew upgrade [--cask] <name>. The check is shared, so Claude, Codex, and OpenCode launchers all get the same behaviour. A Homebrew mise keg behind a native-looking launcher now stays manual-only, as it already did when reached directly.
packages/provider-coresrc/server/maintenanceResolver.test.ts: 67/67 pass. Three cases are new and fail on main:
upgrades a Homebrew cask behind a native-looking launcher with brew: main gives <tmp>/home/.local/bin/native-package-tool update (lock key nativePackageTool-native).
upgrades a Homebrew formula behind a native-looking launcher with brew: same failure.
keeps a mise-owned Homebrew keg in a native install location manual-only: main returns the native updater.
CodexDriver.test.ts, providerMaintenanceRunner.test.ts, and the provider-opencode server tests pass.
vp run check:changed passes (format, lint, knip, typecheck of 25 packages, tests).
This is a server-only fix with no rendered change, so there are no captures. The runtime transcript below comes from the real resolver on a synthetic layout (Linux, platform service set to darwin).
Runtime transcript, before (main 6f2e48d) and after (this branch)
The driver (scratch, not committed) builds the layout in a temp directory and calls resolveProviderMaintenanceCapabilitiesEffect with a copy of ClaudeDriver's isClaudeNativeCommandPath and UPDATE definition, with PATH=<tmp>/home/.local/bin:<tmp>/opt/homebrew/bin.
Not checked: a real Homebrew install and the desktop update button on macOS (cannot-verify macos).
Model and harness: Claude Opus 5.5 (claude-opus-5-5) in Claude Code via T3 Code, with Codex gpt-6.1-sol review.
…launcher
These tests reproduce #28486: a Homebrew cask or formula symlinked into
~/.local/bin gets the provider's native updater instead of brew upgrade.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…with brew
A Claude, Codex, or OpenCode launcher at the provider's native path that
symlinks into a Homebrew keg or cask was updated with the provider's native
updater. Skip the native branch when the real path is Homebrew-owned, so it
resolves through brew upgrade, or stays manual-only for a mise keg.
Fixes#28486
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Macroscope's review found this PR approvable — Homebrew-backed provider launchers now use the existing Homebrew update path instead of the native updater. Existing ownership checks and package-specific targeting keep the change narrowly scoped.
No code changes detected at 1ddcd82. Prior analysis still applies.
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Walkthrough
The maintenance resolver now checks Homebrew ownership before choosing native-update handling. Tests cover Homebrew formula and cask upgrade commands, the homebrew lock key, and a Homebrew keg launcher in mise-owned install coverage.
Changes: Homebrew maintenance resolution
Layer / File(s)
Summary
Homebrew ownership check and coverage packages/provider-core/src/server/maintenanceResolver.ts, packages/provider-core/src/server/maintenanceResolver.test.ts
The resolver excludes Homebrew-owned command paths from native-update handling and reuses the ownership result in the Homebrew branch. Tests cover formula and cask upgrade commands, the homebrew lock key, and a Homebrew keg launcher in mise-owned install coverage.
Issue 23982 concerns package-manager-owned agent updates. This change covers Homebrew ownership, but does not add MacPorts handling.
Possibly related PRs
pingdotgg/t3code#27957: Adds the npm ownership exclusion that this change extends to Homebrew-owned paths.
pingdotgg/t3code#27959: Adds native-update handling for native-looking command paths; this change routes Homebrew-owned paths to Homebrew maintenance instead.
Suggested reviewers:tlconde, mnigos
Merge Risk: Moderate · previous review 32cd0
Updating Claude through a custom link to a versioned Homebrew installation can leave that link unusable. The launcher outcome should be addressed or explicitly accepted before merging.
Pre-merge checks: 4
Check name
Status
Explanation
Title check
The title clearly identifies the provider-core fix: Homebrew installs behind native-looking launchers now update with brew. It is concise and related to the main change.
Description check
The description includes all required sections: Problem, Change, Scope and approval, and Verification. It explains the affected behavior, implementation, tests, observed results, and unverified macOS …
Linked Issues check
Issue #28486 requires a Homebrew-managed launcher behind a native-looking path to use Homebrew maintenance. maintenanceResolver.ts now checks `homebrewOwnershipFromCommandPath(context.realCommandPat…
Out of Scope Changes check
The changes remain within issue #28486. The production change fixes Homebrew ownership classification for native-looking launchers. The tests cover the requested cask behavior, the related formula beh…
Full details: Description check
Explanation
The description includes all required sections: Problem, Change, Scope and approval, and Verification. It explains the affected behavior, implementation, tests, observed results, and unverified macOS scenarios.
Full details: Linked Issues check
Explanation
Issue #28486 requires a Homebrew-managed launcher behind a native-looking path to use Homebrew maintenance. maintenanceResolver.ts now checks homebrewOwnershipFromCommandPath(context.realCommandPath) before the native-updater branch and excludes Homebrew-owned paths from that branch. The added tests cover Homebrew cask and formula kegs behind a native-looking symlink and assert brew upgrade --cask ... or brew upgrade ... with the homebrew lock key. The added mise-keg test preserves the manual-only rule. The issue's logging, spinner, and cache items are open questions or related gaps, not established requirements for this fix.
Full details: Out of Scope Changes check
Explanation
The changes remain within issue #28486. The production change fixes Homebrew ownership classification for native-looking launchers. The tests cover the requested cask behavior, the related formula behavior, and the existing mise exclusion. The shared resolver change applies to the providers identified by the issue. No unrelated production behavior appears in the reviewed diff.
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Actionable comments posted: 1
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Inline comments:
Review comments at @packages/provider-core/src/server/maintenanceResolver.ts:
- Line 529: Update updater selection around homebrewOwnershipFromCommandPath to
distinguish direct versioned Caskroom launchers from stable Homebrew launchers,
preserving the native updater for direct versioned-keg paths so upgrades do not
remove the launcher’s target; add a regression test covering launcher validity
after upgrade.
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The automated pipeline stopped on this pull request and will not merge it:
the proof has no capture anyone can open:
The complete before/after reproduction requires macOS with an outdated Homebrew-managed Claude Code cask. This environment runs Linux and has no brew executable; accessing another machine was explicitly prohibited.
The scenario runner's replay provider cannot demonstrate Claude's native updater or a real Homebrew upgrade.
No captures were created or uploaded. ghdrop upload was not attempted because no valid capture existed.
Formula and cask ownership, npm precedence, and mise handling were not verified through runtime interaction.
It stays open for a person to finish or close.
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bugfixFix PR opened by an issue lead; enters the PR looppr:needs-verificationReviewed and green; needs a run on a desktop, Android or iOS device and captures postedsize:XS0-9 changed lines (additions + deletions).vouch:trustedPR author is trusted by repo permissions or the VOUCHED list.
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Problem
When a provider's launcher sits at a path that looks like a native install but resolves into a Homebrew keg or cask, T3 Code offered the provider's own updater instead of
brew upgrade. Example: Claude Code from theclaude-code@latestcask, reached through a user-made~/.local/bin/claude -> /opt/homebrew/bin/claudesymlink. Thatclaude updatedoes nothing under Homebrew, so every update ended with "Update command completed, but T3 Code still detects an outdated provider version."Reproduction on main
6f2e48da38: I ran the realresolveProviderMaintenanceCapabilitiesEffectwith Claude's resolver definition against an on-disk layout (a Caskroom or Cellar binary, a<home>/.local/bin/claudesymlink to it, and a kegbrewstub). Both layouts got<home>/.local/bin/claude update. When the same keg was reached through a non-native bin directory, the result wasbrew upgrade.Change
resolvePackageManagedProviderMaintenancereturned the native updater before it checked Homebrew ownership of the real path. I moved the existinghomebrewOwnershipFromCommandPath(context.realCommandPath)lookup above the native-launcher branch, and that branch now applies only when the real path is not in a Homebrew keg. A Homebrew-owned launcher then goes through the normal order: npm-in-keg proof, the mise-keg exclusion, thenbrew upgrade [--cask] <name>. The check is shared, so Claude, Codex, and OpenCode launchers all get the same behaviour. A Homebrewmisekeg behind a native-looking launcher now stays manual-only, as it already did when reached directly.Scope and approval
Fixes #28486
Verification
packages/provider-coresrc/server/maintenanceResolver.test.ts: 67/67 pass. Three cases are new and fail on main:upgrades a Homebrew cask behind a native-looking launcher with brew: main gives<tmp>/home/.local/bin/native-package-tool update(lock keynativePackageTool-native).upgrades a Homebrew formula behind a native-looking launcher with brew: same failure.keeps a mise-owned Homebrew keg in a native install location manual-only: main returns the native updater.CodexDriver.test.ts,providerMaintenanceRunner.test.ts, and the provider-opencode server tests pass.vp run check:changedpasses (format, lint, knip, typecheck of 25 packages, tests).darwin).Runtime transcript, before (main 6f2e48d) and after (this branch)
The driver (scratch, not committed) builds the layout in a temp directory and calls
resolveProviderMaintenanceCapabilitiesEffectwith a copy ofClaudeDriver'sisClaudeNativeCommandPathandUPDATEdefinition, withPATH=<tmp>/home/.local/bin:<tmp>/opt/homebrew/bin.Not checked: a real Homebrew install and the desktop update button on macOS (
cannot-verify macos).Model and harness: Claude Opus 5.5 (claude-opus-5-5) in Claude Code via T3 Code, with Codex gpt-6.1-sol review.
🤖 Generated with Claude Code