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Install in OpenClaw
/install ecommerce-amazon-fba-calculator
Description
Amazon FBA Calculator - Complete fee breakdown and profit analysis
README (SKILL.md)
Amazon FBA Calculator (Lite)
Precise FBA fee calculation based on product dimensions and weight.
Features
- Size Tier Detection - Automatic classification
- FBA Fulfillment Fee - 2024 rates
- Monthly Storage Fee - Standard & Peak season
- Long-term Storage Fee - 271+ days aging
- Referral Fee - By category
- Profit Analysis - Gross/Net margin, ROI
- Optimization Tips - Size, weight, inventory
Size Tiers (2024)
| Tier | Max Weight | Max Dimensions |
|---|---|---|
| Small Standard | 1 lb | 15"×12"×0.75" |
| Large Standard | 20 lb | 18"×14"×8" |
| Small Oversize | 70 lb | 60"×30" |
| Medium Oversize | 150 lb | L+Girth ≤108" |
| Large Oversize | 150 lb | L+Girth ≤165" |
| Special Oversize | >150 lb | >165" |
Input
{
"length": 10.0,
"width": 6.0,
"height": 3.0,
"weight": 1.2,
"selling_price": 29.99,
"product_cost": 8.00,
"inbound_shipping_cost": 1.50,
"category": "kitchen"
}
Output
- Size tier classification
- Fee breakdown table
- Profit metrics (margin, ROI)
- Optimization suggestions
Usage
python3 scripts/calculator.py
python3 scripts/calculator.py '{"length": 10, "width": 6, ...}' --zh
Version 1.0.0 | Platform: Amazon | Variant: Lite
Part of Nexscope AI — AI tools for e-commerce sellers.
Usage Guidance
The skill looks coherent and likely safe: it defines an FBA calculator, includes a Python script, and requests no secrets. However the provided source was truncated in the review input, so you should (1) review the full scripts/calculator.py contents yourself to ensure there are no network calls (requests, urllib, socket), subprocess usage (subprocess, os.system, popen), file exfiltration, or hidden endpoints; (2) run the script in a sandboxed environment before giving it real data; (3) check the full SKILL.md and script for any telemetry or phone-home behavior; and (4) prefer code from an identifiable, trusted homepage or repository — absence of a known source increases risk. If you want, provide the full calculator.py file and I will re-check it thoroughly.
Capability Analysis
Type: OpenClaw Skill
Name: ecommerce-amazon-fba-calculator
Version: 0.1.0
The skill bundle is a legitimate Amazon FBA fee calculator. The Python script (scripts/calculator.py) implements standard e-commerce logic for fee breakdown, profit analysis, and size tier classification based on 2024 rates, with no evidence of data exfiltration, network activity, or malicious execution. The SKILL.md instructions are consistent with the code's functionality and do not contain prompt injection attempts.
Capability Assessment
Purpose & Capability
Name/description match the provided code and SKILL.md: an FBA fee/profit calculator. The declared requirements (no env vars, no binaries, no installs) are appropriate for a local Python script.
Instruction Scope
SKILL.md instructs running the included Python script with optional JSON input — this is scoped to the calculator task. However the distributed file contents in the bundle were truncated in the review input (ellipsis present), so we could not inspect the entire runtime logic to confirm it contains only pure computation.
Install Mechanism
No install spec and no external packages declared — lowest-risk distribution model (instruction-only + included script).
Credentials
No environment variables, credentials, or config paths are requested or required. That is proportionate for a local calculator.
Persistence & Privilege
Skill is not always-enabled and does not request elevated or persistent privileges. Nothing in the manifest indicates modification of other skills or system-wide settings.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install ecommerce-amazon-fba-calculator - After installation, invoke the skill by name or use
/ecommerce-amazon-fba-calculator - Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.0
Initial release of Amazon FBA Calculator (Lite):
- Calculates precise Amazon FBA fees using 2024 rates and product details.
- Automatically detects size tier based on dimensions and weight.
- Provides complete fee breakdown (fulfillment, storage, referral, etc.).
- Generates profit analysis (gross/net margin, ROI).
- Offers optimization suggestions (size, weight, inventory management).
Metadata
Frequently Asked Questions
What is Amazon Fba Calculator?
Amazon FBA Calculator - Complete fee breakdown and profit analysis. It is an AI Agent Skill for Claude Code / OpenClaw, with 121 downloads so far.
How do I install Amazon Fba Calculator?
Run "/install ecommerce-amazon-fba-calculator" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Amazon Fba Calculator free?
Yes, Amazon Fba Calculator is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Amazon Fba Calculator support?
Amazon Fba Calculator is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Amazon Fba Calculator?
It is built and maintained by Henk Nie (@phheng); the current version is v0.1.0.
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