What is AfterTool (gemini)?

A Gemini hook that runs a shell script after the agent writes or replaces a file. A hook is an automatic action triggered by a specified event.

It is for running that script after write_file and replace operations.

It provides an automatic reminder or follow-up after file changes, based on the referenced nudge-uncommitted script.

AfterTool (gemini) — Hook for Gemini CLI by webjsdev

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.

Clone the repo

git clone --depth 1 https://github.com/webjsdev/webjs

Made for: Gemini CLI.

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/webjsdev/webjs/gemini-after-tool.svg)](https://agentmods.dev/hooks/webjsdev/webjs/gemini-after-tool)

Your own site

<a href="https://agentmods.dev/hooks/webjsdev/webjs/gemini-after-tool"><img src="https://agentmods.dev/badge/hooks/webjsdev/webjs/gemini-after-tool.svg" alt="Measured on agentmods" 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 original No closer match found in the catalogue.

Security

Grade A, and why

AfterTool (gemini) 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.

examples/blog/.gemini/settings.json · 13 lines

What it actually says

{
  "AfterTool": [
    {
      "matcher": "write_file|replace",
      "hooks": [
        {
          "type": "command",
          "command": ".gemini/hooks/nudge-uncommitted.sh"
        }
      ]
    }
  ]
}

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.

yesterday First seen · 13 lines scan A 65e91e26fde0

Subscribe to this mod's changes

AfterTool (gemini) is a hook published in the GitHub repository webjsdev/webjs (109 stars, last pushed yesterday), 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 2026-09-06.

Git and workflow bun fullstack-framework javascript-framework no-build nodejs progressive-enhancement

AfterTool (gemini)

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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