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PostToolUse

PostToolUse is a hook for coding agents from Borda/vision-delivery. Its token cost is not measured, scanned A, original, Apache-2.0.

A post-tool hook that runs a Node.js script after matching Roboflow tool calls finish. Roboflow is a platform for building computer-vision systems.

In plain words
What is it for?
Running the configured cta.js script after matching Roboflow MCP calls.
Why use it?
It automates a follow-up action after specified tool calls, so that action does not need to be started manually.

Hook

Part of the sentinel plugin — 13 skills, 2 agents, 1 hook, 1 MCP server shipped together

not rated 4 23d ago A scan tokens not measured original Apache-2.0
View the source file Borda/vision-delivery
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/borda/vision-delivery/post-tool-use
Clone the repo
git clone --depth 1 https://github.com/Borda/vision-delivery

Or install sentinel, the plugin that ships this one along with the rest of its 13 skills, 2 agents, 1 hook, 1 MCP server.

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.

agentmods badge for PostToolUse

README.md
[![agentmods](https://agentmods.dev/badge/hooks/borda/vision-delivery/post-tool-use.svg)](https://agentmods.dev/hooks/borda/vision-delivery/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/borda/vision-delivery/post-tool-use"><img src="https://agentmods.dev/badge/hooks/borda/vision-delivery/post-tool-use.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. Scan, not verified.
Origin original No closer match found 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 4d 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

{
  "PostToolUse": [
    {
      "hooks": [
        {
          "command": "node \"${PLUGIN_ROOT}/hooks/cta.js\"",
          "commandWindows": "node \"$env:PLUGIN_ROOT\\hooks\\cta.js\"",
          "type": "command"
        }
      ],
      "matcher": "^mcp__(plugin_[A-Za-z0-9_-]+_)?roboflow__.*$"
    }
  ]
}
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. 4d ago First seen · 14 lines scan A 9e46b4ed8382

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository Borda/vision-delivery (4 stars, last pushed 23d ago), licensed Apache-2.0. 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 2026-08-31.

claude-codeclaude-code-plugincodex-clicodex-plugincomputer-visionobject-detection
Related

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PostToolUse

Runs after a tool call finishes for TodoWrite, TaskCreate, TaskUpdate, TaskList, Write, Edit, MultiEdit, Bash, rp, RepoPrompt, Task and Agent tool calls, executing todo_tracker.py, edit_tracker.py and handoff_result.py via python3 (3 commands). From TerenceLiu98/prewalk.

TerenceLiu98/prewalk · not measured

SubagentStart

Runs when a subagent starts for ^(prewalk:)?prewalk-executor$ tool calls, executing handoff_lifecycle.py via python3. From TerenceLiu98/prewalk.

TerenceLiu98/prewalk · not measured

SubagentStop

Runs when a subagent finishes for ^(prewalk:)?prewalk-executor$ tool calls, executing handoff_lifecycle.py via python3. From TerenceLiu98/prewalk.

TerenceLiu98/prewalk · not measured

PostToolUseFailure

Runs when a tool call fails for Task and Agent tool calls, executing handoff_result.py via python3. From TerenceLiu98/prewalk.

TerenceLiu98/prewalk · not measured

PermissionDenied

Runs on the PermissionDenied event for Task and Agent tool calls, executing handoff_result.py via python3. From TerenceLiu98/prewalk.

TerenceLiu98/prewalk · not measured

PreToolUse

Runs before the agent uses a tool for Task and Agent tool calls, executing handoff_router.py via python3. From TerenceLiu98/prewalk.

TerenceLiu98/prewalk · not measured