agentmods.dev

PreToolUse

A pre-tool hook is an automatic command that runs before selected agent actions. This one runs clad.js before Edit, Write, or MultiEdit file changes.

In plain words
What is it for?
Use it whenever the agent is about to edit, write, or make multiple edits to files. The input does not explain what clad.js does with those events.
Why use it?
It creates a checkpoint before the agent modifies files, allowing the project to perform its configured pre-change action automatically.

Hook

14 4d ago A scan tokens not measured copy · 83% MIT
View the source file qwerfunch/cladding
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/qwerfunch/cladding/pre-tool-use
Clone the repo
git clone --depth 1 https://github.com/qwerfunch/cladding
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 83% copy Near-identical to another mod 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 2d 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.

Origin

This is a copy

83% identical to SessionStart — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/claude-code/hooks/hooks.json · 13 lines

What it actually says

{
  "PreToolUse": [
    {
      "matcher": "Edit|Write|MultiEdit",
      "hooks": [
        {
          "type": "command",
          "command": "node ${CLAUDE_PLUGIN_ROOT}/dist/clad.js hook PreToolUse"
        }
      ]
    }
  ]
}
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. 2d ago First seen · 13 lines scan A 0603ca39485b

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository qwerfunch/cladding (14 stars, last pushed 4d 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. It is 83% identical to SessionStart, differing in 5 lines, and is treated as a copy.

ai-codingclaude-codeclaude-code-plugincodex-clicursor-idedrift-detection
Related

Other hooks, from other repositories

PreToolUse

Runs before the agent uses a tool for Edit, Write, Read, MultiEdit, Bash, Edit, Write, MultiEdit, Edit, Write, MultiEdit and Bash tool calls, executing safety-guardrails.py, workflow-gate.py and workflow-context-injector.py (3 commands). From azalio/map-framework.

azalio/map-framework · not measured

Stop

Runs when the agent finishes a response, executing scrub-internal-ids.py, end-of-turn.sh, map-token-meter.py and map-memory-capture.py (4 commands). From azalio/map-framework.

azalio/map-framework · not measured

SessionStart

Runs when a session starts on compact, executing post-compact-context.py, map-memory-finalize.py and map-memory-recall.py (3 commands). From azalio/map-framework.

azalio/map-framework · not measured

PreCompact

Runs before the context is compacted, executing ralph-context-pruner.py and pre-compact-save-transcript.py (2 commands). From azalio/map-framework.

azalio/map-framework · not measured

PostToolUse

Runs after a tool call finishes for Edit, Write, MultiEdit and Bash tool calls, executing ralph-iteration-logger.py. From azalio/map-framework.

azalio/map-framework · not measured

SubagentStop

Runs when a subagent finishes, executing map-token-meter.py. From azalio/map-framework.

azalio/map-framework · not measured