inventory-tracking

inventory-tracking is a skill for Claude Code, Codex from mercuryPark/oc-setup. It costs 26 tokens per session (242 once invoked), scanned A, original, MIT.

Guidance for building a system that records product quantities and updates stock as items are sold or reserved. It addresses database transactions, simultaneous updates, and low-stock alerts.

In plain words
What is it for?
It helps implement safe stock deductions, product-level thresholds, email/SMS/dashboard alerts, real-time updates, locking, retries, and queues for busy systems.
Why use it?
It helps prevent overselling and incorrect stock counts when several requests change inventory at the same time.

Skill for Claude CodeCodex

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 skills/mercurypark/oc-setup/inventory-tracking
Any agent
npx skills add mercuryPark/oc-setup --skill inventory-tracking
Clone the repo
git clone --depth 1 https://github.com/mercuryPark/oc-setup

Made for: Claude Code, Codex.

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 inventory-tracking

README.md
[![agentmods](https://agentmods.dev/badge/skills/mercurypark/oc-setup/inventory-tracking.svg)](https://agentmods.dev/skills/mercurypark/oc-setup/inventory-tracking)
Your own site
<a href="https://agentmods.dev/skills/mercurypark/oc-setup/inventory-tracking"><img src="https://agentmods.dev/badge/skills/mercurypark/oc-setup/inventory-tracking.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 242 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00242
Opus 5 $0.00013 $0.00121
Sonnet 5 $0.00005 $0.00048
Haiku 4.5 $0.00003 $0.00024

Measured 5d ago against content hash 3cc8bc6dd0ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

inventory-tracking 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 5d 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.

templates/skills/inventory-tracking/SKILL.md · 49 lines

What it actually says

Inventory Tracking System

Core Principles

Transaction Safety

  • Inventory updates must be atomic
  • Use database transactions
  • Implement optimistic locking

Stock Operations

Deduct Stock
async function deductStock(productId: string, quantity: number) {
  return await db.transaction(async (trx) => {
    const product = await trx.query(
      'SELECT * FROM inventory WHERE product_id = $1 FOR UPDATE',
      [productId]
    )
    
    if (product.stock < quantity) {
      throw new Error('Insufficient stock')
    }
    
    await trx.query(
      'UPDATE inventory SET stock = stock - $1 WHERE product_id = $2',
      [quantity, productId]
    )
  })
}

Stock Alerts

  • Low stock threshold per product
  • Alert channels: email, SMS, dashboard
  • Real-time inventory updates

Concurrency

  • Handle race conditions with row-level locking
  • Implement retry logic for conflicts
  • Queue high-traffic operations
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. 5d ago First seen · 49 lines · 26 tokens per session scan A 3cc8bc6dd0ae

Subscribe to this mod's changes

inventory-tracking is a skill published in the GitHub repository mercuryPark/oc-setup (2 stars, last pushed 4mo ago), licensed MIT. It adds 26 tokens to every session and 242 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 2026-08-31.

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