CLAUDE-CODE PUB_DATE: 2026.05.27

CLAUDE CODE V2.1.152: AUTO‑FIX CODE REVIEWS, STRICTER GUARDRAILS, SAFER DEFAULTS

Anthropic shipped Claude Code v2.1.152, turning code reviews into applied patches and tightening enterprise guardrails. The release adds /code-review --fix, wh...

Anthropic shipped Claude Code v2.1.152, turning code reviews into applied patches and tightening enterprise guardrails.

The release adds /code-review --fix, which applies review suggestions directly to your working tree, and makes Auto mode default. It also fails over to a configured fallback model for the rest of a session if the primary isn’t found, reducing broken runs. Full notes are in the GitHub release v2.1.152.

Enterprise controls got sharper: skills can declare disallowed-tools in frontmatter, admins can allowlist pluginSuggestionMarketplaces, and new hooks (/reload-skills, SessionStart, MessageDisplay) streamline rollout and redaction. A short walkthrough of the auto-fix flow is in this video: Claude Code v2.1.152 — Auto-Fix After Code Review.

[ WHY_IT_MATTERS ]
01.

Code review becomes executable, shrinking handoffs and nudging teams toward faster, safer refactors.

02.

Stronger guardrails (disallowed-tools, marketplace allowlists) reduce agent blast radius in regulated repos.

[ WHAT_TO_TEST ]
  • terminal

    Run /code-review --fix on a mid-size service; diff applied changes, measure compile/test pass rate, and track false positives.

  • terminal

    Add disallowed-tools to a risky skill, then simulate a missing primary model to confirm session-wide fallback-model behavior.

[ BROWNFIELD_PERSPECTIVE ]

Legacy codebase integration strategies...

  • 01.

    Enable auto-fix behind a branch protection bot first; require green CI before merge to catch bad patches.

  • 02.

    Set org-level pluginSuggestionMarketplaces and disallowed-tools for prod repos; review Auto mode becoming default.

[ GREENFIELD_PERSPECTIVE ]

Fresh architecture paradigms...

  • 01.

    Design skills with explicit disallowed-tools and SessionStart hooks from day one; support /reload-skills for hot deploys.

  • 02.

    Bake /code-review --fix into pre-merge workflows to keep modules small and continuously refactored.

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