agentmods.dev

PreToolUse

A command that runs before the agent reads or changes files through Edit, Write, Read, Glob, or Grep operations.

In plain words
What is it for?
Use it when you need memX's hook to run before the agent performs one of the listed tool calls.
Why use it?
It allows the configured memory hook to act before those file-related operations take place.

Hook

Part of the memX plugin — 1 skill, 12 hooks, 1 MCP server shipped together

407 3mo ago A scan tokens not measured original MIT
View the source file NeoLi00/memX
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/neoli00/memx/pre-tool-use
Clone the repo
git clone --depth 1 https://github.com/NeoLi00/memX

Or install memX, the plugin that ships this one along with the rest of its 1 skill, 12 hooks, 1 MCP server.

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 3d ago.

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.

hooks/hooks.json · 14 lines

What it actually says

{
  "PreToolUse": [
    {
      "matcher": "Edit|Write|Read|Glob|Grep",
      "hooks": [
        {
          "type": "command",
          "command": "node \"${CLAUDE_PLUGIN_ROOT}/dist/.runtime/src/bin/memx-hook.mjs\" claude-code PreToolUse",
          "timeout": 8
        }
      ]
    }
  ]
}
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. 3d ago First seen · 14 lines scan A 0d85d9c1fb83

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository NeoLi00/memX (407 stars, last pushed 3mo 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.

agentagent-memoryembeddingsgraph-memorylong-term-memoryopenclaw
Related

Other hooks, from other repositories

Stop

Runs when the agent finishes a response, executing stop.sh via bash. From zilliztech/memsearch.

zilliztech/memsearch · not measured

SessionEnd

Runs when a session ends, executing session-end.sh via bash. From zilliztech/memsearch.

zilliztech/memsearch · not measured

Stop

Runs when the agent finishes a response, executing lycheemem_hook.py via python3. From LycheeMem/LycheeMem.

LycheeMem/LycheeMem · not measured

Stop

Runs when the agent finishes a response, running an inline shell check. From codician-team/growmos.

codician-team/growmos · not measured

Stop

Runs when the agent finishes a response, running signet hook session-end -H codex. From Signet-AI/signetai.

Signet-AI/signetai · not measured

PostToolUse

Runs after a tool call finishes for Write and Edit tool calls, running an inline shell check. From runtimenoteslabs/memory-layer.

runtimenoteslabs/memory-layer · not measured