PostToolUse

Automated commands that run after selected coding-agent actions, such as editing files, creating tasks, running shell commands, or using memory tools. They call project scripts to record work and reset or update checks.

In plain words
What is it for?
Use them to run post-edit checks, record completed agent tasks, track test runs, and reset edit-related gates.
Why use it?
They remove the need to remember follow-up checks after common actions. The configured scripts can apply project-specific tracking or gates automatically.

Hook for Claude Code

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/eric-cielo/moflo/post-tool-use
Clone the repo
git clone --depth 1 https://github.com/eric-cielo/moflo

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 50% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

PostToolUse 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.

Origin

This is a copy

50% identical to SessionStart — 109 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.

.claude/settings.json · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "PostToolUse": [
    {
      "matcher": "^(Write|Edit|MultiEdit)$",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/hook-handler.cjs\" post-edit",
          "timeout": 5000
        },
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate-hook.mjs\" reset-edit-gates",
          "timeout": 2000
        }
      ]
    },
    {
      "matcher": "^Agent$",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/hook-handler.cjs\" post-task",
          "timeout": 5000
        }
      ]
    },
    {
      "matcher": "^TaskCreate$",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate.cjs\" record-task-created",
          "timeout": 2000
        }
      ]
    },
    {
      "matcher": "^(Bash|PowerShell)$",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate-hook.mjs\" record-test-run",
          "timeout": 2000
        },
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate-hook.mjs\" record-bash-swarm-init",
          "timeout": 2000
        }
      ]
    },
    {
      "matcher": "^Skill$",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate-hook.mjs\" record-skill-run",
          "timeout": 2000
        },
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate-hook.mjs\" record-verify-run",
          "timeout": 2000
        }
      ]
    },
    {
      "matcher": "^mcp__moflo__memory_(search|retrieve|list|stats|store)$",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$CLAUDE_PROJECT_DIR/.claude/helpers/gate-hook.mjs

Read the full file on GitHub · 114 lines

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 · 114 lines scan A ce163c7e5b06

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository eric-cielo/moflo (18 stars, last pushed 5d 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 50% identical to SessionStart, differing in 109 lines, and is treated as a copy.