agentmods.dev

PreToolUse

A pre-command safety check that runs before Bash commands and warns when a command contains several destructive Git operations, such as forced resets or deleting branches.

In plain words
What is it for?
Use it in an agent workflow to flag risky Git commands before they run.
Why use it?
It adds a visible warning before commands that could discard changes or rewrite repository history.

Hook for Claude Code

24 15d ago A scan tokens not measured original MIT
View the source file hoangsonww/WealthWise-Finance-Tracker
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/hoangsonww/wealthwise-finance-tracker/pre-tool-use
Clone the repo
git clone --depth 1 https://github.com/hoangsonww/WealthWise-Finance-Tracker

Made for: Claude Code.

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.

.claude/settings.json · 13 lines

What it actually says

{
  "PreToolUse": [
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "command",
          "command": "sh -c 'cmd=\"$CLAUDE_TOOL_INPUT_COMMAND\"; case \"$cmd\" in *\"--force\"*|*\"reset --hard\"*|*\"clean -f\"*|*\"branch -D\"*|*\"checkout --\"*) printf \"\\n[WealthWise] WARNING: Destructive git operation detected:\\n  %s\\nVerify this is intentional before proceeding.\\n\" \"$cmd\" >&2 ;; esac; exit 0'"
        }
      ]
    }
  ]
}
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.

  1. yesterday First seen · 13 lines scan A e2ec120cf04c

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository hoangsonww/WealthWise-Finance-Tracker (24 stars, last pushed 15d 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.

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Related

Other hooks, from other repositories

PostToolUse

Runs after a tool call finishes for Write, Edit and Bash tool calls, executing post-merge-sync-reminder.sh, main-tree-dirty-detector.sh and main-tree-git-cwd-detector.sh (4 commands). From go-to-k/cdkd.

go-to-k/cdkd · not measured

PreCompact

Runs before the context is compacted, running an inline shell check. From go-to-k/cdkd.

go-to-k/cdkd · not measured

PreToolUse

Runs before the agent uses a tool for Bash, Edit, Write, Bash, Edit, Write and NotebookEdit tool calls, executing branch-gate.sh, main-tree-branch-gate.sh, post-merge-orphan-push-gate.sh, check-gate.sh, integ-destroy-gate.sh, integ-local-gate.sh, integ-broad-gate.sh, integ-schema-migration-gate.sh, pr-review-gate.sh…

go-to-k/cdkd · not measured

Stop

Runs when the agent finishes a response, executing stop-warn.sh and stop-unmerged-lane-warn.sh (2 commands). From go-to-k/cdkd.

go-to-k/cdkd · not measured

PostToolUse

Runs after a tool call finishes for Edit and Write tool calls, running an inline shell check. From DefangLabs/defang.

DefangLabs/defang · not measured

PostToolUse

Runs after a tool call finishes for Write, Edit, MultiEdit and Bash tool calls, executing track-code-change.sh and track-command.sh (2 commands). From wewpellex21/code-sensei.

wewpellex21/code-sensei · not measured