Block No Verify Hook

What it does

When your agent uses it

• Setting up Claude Code projects that enforce commit quality gates
• Tasks that involve Quality gates

Example prompts

• “/block-no-verify-hook”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Matcher: The hook targets only Bash tool calls, so it does not interfere with other tools (Read, Edit, Grep, etc.).
2. 2Inspection: Claude Code sends the tool call to the hook as JSON on stdin and sets no $TOOL_INPUT variable. The hook searches the command…
3. 3Blocking: If a bypass flag is found in a git command, the hook exits with code 2 and prints an error message. Exit code 2 signals Claude…
4. 4Pass-through: If no bypass flag is found, the hook exits with code 0 and the command executes normally.
5. 5Limits: The hook checks text, so it stops an agent that reaches for a bypass flag out of habit. It doesn't stop an agent that sets out to…

What it can do on your machine

Read from SKILL.md and the folder at commit 46891e7. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • git

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Block No Verify Hook loads about 1.9k tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 601 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~55

When it runs · the whole SKILL.md, loaded when a task matches

~1.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NoteRuns commands with sudoSKILL.md:62

  `git`, so it also catches `if git ...`, `sudo git ...`, and `g=git; $g commit --no-verify`. A false match, such as a com

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from wshobson/agents at commit 46891e7, republished under its MIT licence (© wshobson). 601 words, ~1,877 tokens.

name

block-no-verify-hook

description

Configure a PreToolUse hook to prevent AI agents from skipping git pre-commit hooks with --no-verify and other bypass flags. Use when setting up Claude Code projects that enforce commit quality gates.

# These commands skip pre-commit hooks entirely
git commit --no-verify -m "quick fix"
git push --no-verify
git commit --no-gpg-sign -m "unsigned commit"
git merge --no-verify feature-branch

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "if grep -qE '\"command\"[[:space:]]*:[[:space:]]*\"([^\"\\\\]|\\\\.)*(--no-(ver|g)|commit([^\"\\\\]|\\\\.)*([[:space:]]|\\\\[tn])-[a-zA-Z]*n)'; then echo 'BLOCKED: --no-verify and --no-gpg-sign flags are not allowed. Run the commit without bypass flags so that pre-commit hooks execute properly.' >&2; exit 2; fi"
          }
        ]
      }
    ]
  }
}

mkdir -p .claude
cat > .claude/settings.json << 'EOF'
{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "if grep -qE '\"command\"[[:space:]]*:[[:space:]]*\"([^\"\\\\]|\\\\.)*(--no-(ver|g)|commit([^\"\\\\]|\\\\.)*([[:space:]]|\\\\[tn])-[a-zA-Z]*n)'; then echo 'BLOCKED: --no-verify and --no-gpg-sign flags are not allowed. Run the commit without bypass flags so that pre-commit hooks execute properly.' >&2; exit 2; fi"
          }
        ]
      }
    ]
  }
}
EOF

mkdir -p ~/.claude
cat > ~/.claude/settings.json << 'EOF'
{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "if grep -qE '\"command\"[[:space:]]*:[[:space:]]*\"([^\"\\\\]|\\\\.)*(--no-(ver|g)|commit([^\"\\\\]|\\\\.)*([[:space:]]|\\\\[tn])-[a-zA-Z]*n)'; then echo 'BLOCKED: --no-verify and --no-gpg-sign flags are not allowed. Run the commit without bypass flags so that pre-commit hooks execute properly.' >&2; exit 2; fi"
          }
        ]
      }
    ]
  }
}
EOF

# This should be blocked by the hook:
git commit --no-verify -m "test"

# This should succeed normally:
git commit -m "test"

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "if grep -qE '\"command\"[[:space:]]*:[[:space:]]*\"([^\"\\\\]|\\\\.)*(--no-(ver|g)|commit([^\"\\\\]|\\\\.)*([[:space:]]|\\\\[tn])-[a-zA-Z]*n|git([[:space:]]|\\\\t)([^\"\\\\]|\\\\.)*--force)'; then echo 'BLOCKED: Bypass flags are not allowed.' >&2; exit 2; fi"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "if grep -qE '\"command\"[[:space:]]*:[[:space:]]*\"([^\"\\\\]|\\\\.)*(--no-(ver|g)|commit([^\"\\\\]|\\\\.)*([[:space:]]|\\\\[tn])-[a-zA-Z]*n)'; then echo 'BLOCKED: Bypass flags not allowed.' >&2; exit 2; fi"
          }
        ]
      },
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "if grep -qE 'rm[[:space:]]+-rf[[:space:]]+/'; then echo 'BLOCKED: Dangerous rm command.' >&2; exit 2; fi"
          }
        ]
      }
    ]
  }
}

© wshobson, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugins/block-no-verify/skills/block-no-verify-hook of wshobson/agents.

Open the folder on GitHubat commit 46891e7