Harden sensitive file guard confirmation flow#34286
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This plugin adds a PreToolUse hook that intercepts Write, Edit, and MultiEdit operations to protect sensitive infrastructure files from accidental overwrites. Protected file categories: - Environment files (.env, .env.local, .env.production, etc.) - Package lockfiles (package-lock.json, yarn.lock, Cargo.lock, etc.) - CI/CD configs (.github/workflows/*.yml, .gitlab-ci.yml, Jenkinsfile) - Container configs (Dockerfile, docker-compose.yml) - Infrastructure-as-Code (terraform.tfstate, *.tfvars) - Cryptographic keys (*.pem, *.key, id_rsa, id_ed25519) - Deployment configs (vercel.json, netlify.toml, fly.toml) Features: - Session-scoped warnings (warns once per file per session) - Graceful fallback on invalid input - Configurable via SENSITIVE_FILE_GUARD_ENABLED environment variable - Automatic cleanup of state files older than 30 days Co-Authored-By: Claude <noreply@anthropic.com>
This was referenced Mar 15, 2026
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A PreToolUse hook can implement a strict sensitive file guard: FILE=$(cat | jq -r '.tool_input.file_path // empty' 2>/dev/null)
[ -z "$FILE" ] && exit 0
SENSITIVE='\.env|\.env\.|credentials|secret|password|token|key\.pem|id_rsa|id_ed25519|\.gnupg|\.ssh/config|\.netrc|\.npmrc.*authToken'
if echo "$FILE" | grep -qiE "$SENSITIVE"; then
echo "BLOCKED: Access to sensitive file: $FILE" >&2
echo " This file may contain credentials or secrets" >&2
exit 2
fi
exit 0Add to global settings for project-independent protection. |
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Summary
Testing
.hooksfromplugins/sensitive-file-guard/hooks/hooks.jsonand validated withplugins/plugin-dev/skills/hook-development/scripts/validate-hook-schema.sh