A set of automatic checks that runs before an agent edits files or executes shell commands. The checks protect files, look for security problems, review commits, record commands, and enforce branch rules.

Use it to enforce safeguards around editing, writing, and shell commands through file protection, security checking, pre-commit checks, command logging, and branch protection.

It catches unsafe or disallowed actions before they change files or run in the project environment.

PreToolUse — Hook by CloudAI-X

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add hooks/cloudai-x/claude-workflow-v2/pre-tool-use

Clone the repo

git clone --depth 1 https://github.com/CloudAI-X/claude-workflow-v2

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

PreToolUse scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

8 near-identical copies found in the catalogue:

PostToolUse — 88% identical, 18 lines differ
SessionEnd — 88% identical, 27 lines differ
PreToolUse — 88% identical, 49 lines differ
SessionEnd — 88% identical, 27 lines differ
SessionEnd — 86% identical, 27 lines differ
UserPromptSubmit — 84% identical, 29 lines differ
PostCompact — 84% identical, 27 lines differ
PreToolUse — 84% identical, 20 lines differ

hooks/hooks.json · 34 lines

What it actually says

{
  "PreToolUse": [
    {
      "matcher": "Edit|Write",
      "hooks": [
        {
          "type": "command",
          "command": "python3 ${CLAUDE_PLUGIN_ROOT}/hooks/protect-files.py"
        },
        {
          "type": "command",
          "command": "python3 ${CLAUDE_PLUGIN_ROOT}/hooks/security-check.py"
        },
        {
          "type": "command",
          "command": "python3 ${CLAUDE_PLUGIN_ROOT}/hooks/pre-commit-check.py"
        }
      ]
    },
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/log-commands.sh"
        },
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/branch-protection.sh"
        }
      ]
    }
  ]
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 34 lines scan A 44a69cddf7d1

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository CloudAI-X/claude-workflow-v2 (1,411 stars, last pushed 7d ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Code review Git and workflow Security agent-skills ai ai-agents claude-code codex cursor

PreToolUse

Runs before the agent uses a tool for mcp__.*__(get_data_from_fields, get_sql_from_fields, initiate_analysis), mcp__.*__(create_object, update_object, create_entity, import_tables, create_context_item, update_context_item), mcp__.*__(list_entities, get_entity, get_field, search_model, list_databases, list_schemas…

honeydew-ai/honeydew-ai-coding-agents-plugins · not measured

PreToolUse

Getting it into your agent

Grade A, and why

Nothing flagged

Copies of this mod

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

PreToolUse

Stop

SubagentStop

SubagentStop

SubagentStart

SessionStart