It provides checks and warnings immediately after files are changed, so problems from direct edits can be noticed early.

PostToolUse — Hook for Claude Code by TheThoughtagen/agentsync

PostToolUse

PostToolUse is a hook for Claude Code from TheThoughtagen/agentsync. Its token cost is not measured, scanned A, a copy of SessionStart, MIT.

A post-tool hook configuration that runs two shell scripts after an editing or writing tool finishes. A hook is an automatic action triggered by a specified event.

In plain words

What is it for?: Use it after Edit or Write operations to run a direct-edit warning script and a hook-validation script.
Why use it?: It provides checks and warnings immediately after files are changed, so problems from direct edits can be noticed early.

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the aisync plugin — 2 skills, 7 commands, 2 hooks shipped together

One of 2 entries in hooks.json upstream. Installing this one merges just its entry into your config; the other 1 are separate, each on its own page.

Good fit Use it after Edit or Write operations to run a direct-edit warning script and a hook-validation script.

Compare 6 hooks from other repositories ↓

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add TheThoughtagen/agentsync

Claude Code

/plugin install aisync

Made for: Claude Code.

Or install aisync, the plugin that ships this one along with the rest of its 2 skills, 7 commands, 2 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/hooks/thethoughtagen/agentsync/post-tool-use/github.svg)](https://agentmods.dev/hooks/thethoughtagen/agentsync/post-tool-use)

Your own site

<a href="https://agentmods.dev/hooks/thethoughtagen/agentsync/post-tool-use"><img src="https://agentmods.dev/badge/hooks/thethoughtagen/agentsync/post-tool-use/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/hooks/thethoughtagen/agentsync/post-tool-use"><img src="https://agentmods.dev/badge/hooks/thethoughtagen/agentsync/post-tool-use.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

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. A grade says what 26 rules found in the file — not that it is safe.

Origin 59% 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 2mo 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

59% identical to SessionStart — 15 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/aisync/hooks/hooks.json · 19 lines

What it actually says

{
  "PostToolUse": [
    {
      "matcher": "Edit|Write",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/direct-edit-warn.sh",
          "timeout": 10
        },
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/hooks-validate.sh",
          "timeout": 10
        }
      ]
    }
  ]
}

Same file

What else `hooks.json` configures

This page is one entry in a file that holds 2. Installing the file brings all of them; each is measured and scanned on its own page.

Hook SessionStart A not measured

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.

2mo ago First seen · 19 lines scan A 0d05b3d0d168

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository TheThoughtagen/agentsync (2 stars, last pushed 7mo 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 59% identical to SessionStart, differing in 15 lines, and is treated as a copy.

ai-agents

PostToolUse next to 6 hooks from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
PostToolUseTheThoughtagen/agentsync	Hook	2	7mo ago	MIT	A	—	Claude Code
PostToolUsesupabase/supabase	Hook	115k	today	Apache-2.0	A	—	Claude Code
SessionStartgoogle-gemini/gemini-cli	Hook	109k	today	Apache-2.0	A	—	Claude Code
SessionStartsupabase/supabase	Hook	115k	today	Apache-2.0	A	—	Claude Code
PreToolUseapache/superset	Hook	75k	today	Apache-2.0	A	—	Claude Code
PostToolUseanthropics/claude-plugins-official	Hook	46k	today	Apache-2.0	A	—	Claude Code
PreToolUseanthropics/claude-cookbooks	Hook	54k	3d ago	MIT	A	—	Claude Code