Add Claude Code hooks for git worktree safety and toolchain setup#7261
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- check-bash-worktree.sh: PreToolUse Bash matcher that blocks commands referencing the main clone instead of the active worktree (parses absolute paths from tool_input.command). - worktree-context.sh: UserPromptSubmit hook that injects a one-line reminder of the active worktree on every user prompt, so the rule survives compaction and attention decay. - settings.json: register both hooks. Reminder + deterministic block give belt-and-suspenders coverage — the reminder shapes behavior, the block catches lapses. https://claude.ai/code/session_01Wo4ETjsNM4ggHqFSqRTyPN
Move the inline yarn-install SessionStart command into a dedicated .claude/hooks/session-start.sh and add ShellCheck installation. The pre-commit `shellcheck` Lefthook step requires shellcheck >= 0.10.0 and otherwise falls back to Docker. The Claude Code on the web container ships neither, so shell-script commits previously failed until shellcheck was installed by hand. The hook now installs the pinned binary (matching .ci/shellcheck/shellcheck.sh) so linting works on a cold start. Remote-only (CLAUDE_CODE_REMOTE), idempotent, and synchronous so deps are guaranteed ready before the session begins. https://claude.ai/code/session_01Wo4ETjsNM4ggHqFSqRTyPN
This was referenced May 26, 2026
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Summary
Adds three new Claude Code hooks to enforce git worktree isolation and ensure the lint toolchain is available in remote environments:
check-bash-worktree.sh— PreToolUse hook that blocks Bash commands referencing the main clone instead of the active worktree, preventing accidental operations outside the intended workspace.session-start.sh— SessionStart hook that installs Node dependencies and ShellCheck v0.10.0 in remote (web) environments, ensuring linting works without manual intervention.worktree-context.sh— UserPromptSubmit hook that injects worktree awareness into every user prompt, helping Claude understand the active workspace and avoid path confusion in long sessions.Updates
.claude/settings.jsonto register these hooks with appropriate matchers, timeouts, and status messages.Checklist
npx hugo --quiet)Test Plan
No testing needed — these are Claude Code configuration hooks that run in the Claude Code environment. The hooks are idempotent and safe to re-run; they exit cleanly when conditions don't apply (e.g., non-worktree repos, non-remote environments).
https://claude.ai/code/session_01Wo4ETjsNM4ggHqFSqRTyPN