dreikanter/autoconfirm

autoconfirm

Toggle a prompt-based safety-reviewer hook in .claude/settings.local.json for the current project. When enabled, an LLM automatically approves safe tool calls and blocks dangerous ones.

Usage

• /autoconfirm — show current status
• /autoconfirm on — enable the safety-reviewer hook
• /autoconfirm off — disable it

Hook Definition

{
  "id": "autoconfirm",
  "hooks": [{
    "type": "prompt",
    "prompt": "You are a safety reviewer for an automated Claude Code session. Decide whether this tool call should be ALLOWED or should ASK the user for confirmation.\n\nALLOW if:\n- Writing or editing code files in the project directory\n- Running common dev commands (test, build, lint, format, echo, cat, ls, git status, git diff, git log, git add, git commit, git checkout, git branch)\n- GitHub CLI commands (gh pr, gh issue, gh repo, gh api, gh gist, gh run, etc.)\n- Reading files, searching, globbing\n- Creating/editing configuration files in the project (including .claude/settings.local.json)\n- jq commands for JSON processing\n- mv commands within the project or from /tmp to the project\n\nASK (escalate to user) if:\n- Destructive commands: rm -rf, git push --force, git reset --hard, DROP TABLE, etc.\n- Touching sensitive files: .env, credentials, secrets, private keys, tokens\n- Network requests to unknown endpoints\n- Installing packages globally or running sudo\n- Modifying files outside the project directory\n- Any command that could cause irreversible damage\n- Anything you are uncertain about\n\nNever DENY outright — either ALLOW or ASK.\n\nTool call to evaluate:\n$ARGUMENTS",
    "model": "claude-haiku-4-5-20251001",
    "statusMessage": "autoconfirm reviewing..."
  }]
}

Implementation Instructions

When the user invokes this skill, follow these steps exactly:

Step 1: Parse arguments

Extract the action from $ARGUMENTS. Valid values: on, off, or empty/missing (status check).

Step 2: Read current settings

Read .claude/settings.local.json in the current project directory. If the file doesn't exist:

• For on: create it with {}
• For off or status: report that no hooks are configured

Step 2a: Status check (no arguments)

If no action was provided, check whether the autoconfirm hook exists in .hooks.PreToolUse[] (look for an entry with "id": "autoconfirm"). Report concisely:

• Enabled if the hook is present
• Disabled if absent or file doesn't exist

Then stop — do not proceed to Step 3.

Step 3: Execute action

For on:

Use jq via Bash to merge the hook into the existing settings file. Do NOT overwrite other keys (permissions, env, etc.). If the hook already exists, replace it.

jq --argjson hook '<HOOK_JSON_FROM_ABOVE>' '
  .hooks //= {} |
  .hooks.PreToolUse //= [] |
  .hooks.PreToolUse |= [.[] | select(.id != $hook.id)] + [$hook]
' .claude/settings.local.json > /tmp/autoconfirm-tmp.json && mv /tmp/autoconfirm-tmp.json .claude/settings.local.json

For off:

Use jq to remove the hook. Clean up empty arrays/objects.

jq '
  if .hooks.PreToolUse then
    .hooks.PreToolUse |= [.[] | select(.id != "autoconfirm")]
  else . end |
  if .hooks.PreToolUse == [] then del(.hooks.PreToolUse) else . end |
  if .hooks == {} then del(.hooks) else . end
' .claude/settings.local.json > /tmp/autoconfirm-tmp.json && mv /tmp/autoconfirm-tmp.json .claude/settings.local.json

Step 4: Verify

Read the file back and confirm the result to the user concisely.