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TaskCompleted

TaskCompleted is a hook for coding agents from Exponential-OS/prompt-engineering-in-action. Its token cost is not measured, scanned A, original, AGPL-3.0.

A completion hook that runs a checking script when an agent marks a task done.

In plain words
What is it for?
Use it to run task-completion checks through Bun, a JavaScript runtime, after an agent finishes a task.
Why use it?
It adds a review step at the point where work is declared finished, helping catch incomplete or incorrect results.

Hook

Part of the co-dialectic plugin — 11 skills, 5 hooks shipped together

One of 5 entries in hooks.json — they are configured in one file and arrive together.

not rated 9 16d ago A scan tokens not measured AGPL-3.0
View the source file Exponential-OS/prompt-engineering-in-action
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/exponential-os/prompt-engineering-in-action/task-completed
Clone the repo
git clone --depth 1 https://github.com/Exponential-OS/prompt-engineering-in-action

Or install co-dialectic, the plugin that ships this one along with the rest of its 11 skills, 5 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.

agentmods badge for TaskCompleted

README.md
[![agentmods](https://agentmods.dev/badge/hooks/exponential-os/prompt-engineering-in-action/task-completed.svg)](https://agentmods.dev/hooks/exponential-os/prompt-engineering-in-action/task-completed)
Your own site
<a href="https://agentmods.dev/hooks/exponential-os/prompt-engineering-in-action/task-completed"><img src="https://agentmods.dev/badge/hooks/exponential-os/prompt-engineering-in-action/task-completed.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 unknown No closer match found in the catalogue.
Security

Grade A, and why

TaskCompleted 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.

plugins/co-dialectic/hooks/hooks.json · 13 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Same file

What else hooks.json configures

This page is one entry in a file that holds 5. Installing the file brings all of them; each is measured and scanned on its own page.

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 · 13 lines scan A d3c3b10cb1df

Subscribe to this mod's changes

TaskCompleted is a hook published in the GitHub repository Exponential-OS/prompt-engineering-in-action (9 stars, last pushed 16d ago), licensed AGPL-3.0. 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.

Data and AIPlanningai-promptsai-toolschatgptclaudeco-dialecticco-intelligence
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