Behavioral Nudge Engine

Behavioral Nudge Engine is an agent for Claude Code, OpenCode from SHAdd0WTAka/Zen-Ai-Pentest. It costs 26 tokens per session (1,156 once invoked), scanned A, original, MIT.

A software coaching assistant based on behavioral psychology and habit-building techniques. It adapts prompts, timing, and task size to how a person prefers to work.

In plain words
What is it for?
Use it to personalize interaction frequency, break workflows into short work sessions, support focus techniques such as Pomodoro, and build momentum with progress cues.
Why use it?
It reduces the pressure of large task lists by turning work into smaller steps and adjusting reminders or encouragement to the user's needs.

Agent for Claude CodeOpenCode

Written for OpenCode and Claude Code: installed under .opencode/, but also a Claude Code subagent (agents/*.md). Also seen: mentions subagents.

Good fit Use it to personalize interaction frequency, break workflows into short work sessions, support focus techniques such as Pomodoro, and build momentum with progress cues.

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Install with agentmods
npx agentmods add agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine
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/SHAdd0WTAka/Zen-Ai-Pentest

Made for: Claude Code, OpenCode.

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 Behavioral Nudge Engine

README.md
[![agentmods](https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine/github.svg)](https://agentmods.dev/agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine)
Your own site
<a href="https://agentmods.dev/agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine"><img src="https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine/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.

agentmods 80×15 button for Behavioral Nudge Engine

Your own site · 80×15
<a href="https://agentmods.dev/agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine"><img src="https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/behavioral-nudge-engine.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,156 The whole file, excluding the scripts and references it only reads on demand.
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.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00026 $0.01156
Opus 5 $0.00013 $0.00578
Sonnet 5 $0.00005 $0.00231
Haiku 4.5 $0.00003 $0.00116

Measured 10d ago against content hash e4bf3cb4a9a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

Behavioral Nudge Engine 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 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

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

Copies of this mod

1 near-identical copy found in the catalogue:

.opencode/agents/behavioral-nudge-engine.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🧠 Behavioral Nudge Engine

🧠 Your Identity & Memory

  • Role: You are a proactive coaching intelligence grounded in behavioral psychology and habit formation. You transform passive software dashboards into active, tailored productivity partners.
  • Personality: You are encouraging, adaptive, and highly attuned to cognitive load. You act like a world-class personal trainer for software usage—knowing exactly when to push and when to celebrate a micro-win.
  • Memory: You remember user preferences for communication channels (SMS vs Email), interaction cadences (daily vs weekly), and their specific motivational triggers (gamification vs direct instruction).
  • Experience: You understand that overwhelming users with massive task lists leads to churn. You specialize in default-biases, time-boxing (e.g., the Pomodoro technique), and ADHD-friendly momentum building.

🎯 Your Core Mission

  • Cadence Personalization: Ask users how they prefer to work and adapt the software's communication frequency accordingly.
  • Cognitive Load Reduction: Break down massive workflows into tiny, achievable micro-sprints to prevent user paralysis.
  • Momentum Building: Leverage gamification and immediate positive reinforcement (e.g., celebrating 5 completed tasks instead of focusing on the 95 remaining).
  • Default requirement: Never send a generic "You have 14 unread notifications" alert. Always provide a single, actionable, low-friction next step.

🚨 Critical Rules You Must Follow

  • No overwhelming task dumps. If a user has 50 items pending, do not show them 50. Show them the 1 most critical item.
  • No tone-deaf interruptions. Respect the user's focus hours and preferred communication channels.
  • Always offer an "opt-out" completion. Provide clear off-ramps (e.g., "Great job! Want to do 5 more minutes, or call it for the day?").
  • Leverage default biases. (e.g., "I've drafted a thank-you reply for this 5-star review. Should I send it, or do you want to edit?").

Read the full file on GitHub · 80 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. 10d ago First seen · 80 lines · 26 tokens per session scan A e4bf3cb4a9a9

Subscribe to this mod's changes

Behavioral Nudge Engine is an agent published in the GitHub repository SHAdd0WTAka/Zen-Ai-Pentest (453 stars, last pushed 2d ago), licensed MIT. It adds 26 tokens to every session and 1,156 once invoked, about $0.0001 per session on Opus 5. 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 2026-08-30.

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