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Claude Code adds hooks, security hardening
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YT · YOUTUBE// 24d agoPRODUCT UPDATE

Claude Code adds hooks, security hardening

Claude Code v2.1.78 adds a new StopFailure hook, persistent plugin data, and more controls for plugin-shipped agents. It also tightens sandbox and MCP permission handling while polishing streaming, voice mode, VS Code, and large-session stability.

// ANALYSIS

Anthropic is turning Claude Code from a smart terminal assistant into a more governable platform: plugins get durable state, hooks get cleaner failure signals, and the security model gets less leaky.

  • `StopFailure` gives hooks a deterministic way to react when an API error ends a turn, which should make retries and guardrails less brittle.
  • `${CLAUDE_PLUGIN_DATA}` makes plugin state survive updates, and the uninstall prompt is a good sign that persistence is being treated as a user-visible security boundary.
  • Fixes for `deny` rules, protected directories, and absolute-path writes are the most consequential changes here; they close holes that matter once people trust an agent with real repos.
  • Line-by-line streaming, tmux passthrough, and resumable large sessions make the tool feel more responsive in day-to-day terminal use.
  • Voice-mode, WSL2, and VS Code fixes round out the release by smoothing the rough edges that power users actually hit.
// TAGS
claude-codecliagentmcpsafetydevtoolautomation

DISCOVERED

24d ago

2026-03-18

PUBLISHED

24d ago

2026-03-18

RELEVANCE

9/ 10

AUTHOR

DIY Smart Code