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/install profit-margin-calculator-walmart
Description
Walmart profit margin calculator for sellers. Calculate cost breakdowns including WFS fulfillment, storage fees, and referral fees. Includes comparison with...
Usage Guidance
Key things to consider before installing or running this skill:
- Do not run the script on production or with sensitive data until you verify it. Run it in a sandbox/container first.
- The SKILL.md advertises a Walmart/WFS calculator, but the bundled Python is Amazon-focused (FBA terminology and Amazon referral rates). This likely produces incorrect results for Walmart sellers. Ask the author for clarification or an updated implementation that explicitly supports WFS and uses Walmart fee rules.
- The usage example passes 'wfs_fee' but the code appears to expect fields like 'fba_fulfillment_fee' / 'fba_storage_fee' — fix or map input field names before use to avoid runtime errors or silent miscalculations.
- Because the package source and homepage are unknown, inspect the full Python file (including the truncated portion) for any network calls or subprocess usage before execution. Search the script for imports or functions that indicate external communication (requests, urllib, socket, subprocess, os.system, ftplib, smtplib) or for hard-coded endpoints.
- If you only need Walmart calculations, consider either obtaining a version explicitly designed for WFS or adapting this engine: replace Amazon referral rates with Walmart rates, rename/mapping of fee fields, and verify formulas.
If you want, I can (a) search the remaining/truncated part of the script for network I/O or dangerous patterns, (b) produce a patch mapping 'wfs_fee' -> 'fba_fulfillment_fee' and replace Amazon referral rate table with a Walmart-appropriate table, or (c) draft questions to send to the skill author to get a clear claim of supported marketplaces.
Capability Analysis
Type: OpenClaw Skill
Name: profit-margin-calculator-walmart
Version: 0.1.0
The skill is a functional profit margin calculator for e-commerce sellers. Although the documentation (SKILL.md) labels it for Walmart, the underlying script (scripts/calculator.py) appears to be a template originally designed for Amazon FBA, as evidenced by references to 'FBA' fees and Amazon-specific referral rates. However, the code logic is strictly mathematical, lacks any network or file system access, and contains no indicators of malicious intent or data exfiltration.
Capability Assessment
Purpose & Capability
The skill name and SKILL.md say 'Walmart' / WFS, yet the included Python file is titled 'Amazon Profit Calculator' and uses Amazon-specific concepts and constants: REFERRAL_FEE_RATES that match Amazon category rates, variables named fba_fulfillment_fee and fba_storage_fee, and FBA_FULFILLMENT_FEES. The SKILL.md claims Walmart comparison, but the primary implementation appears Amazon-centric. Additionally the skill source/homepage are unknown, which increases the need for scrutiny.
Instruction Scope
SKILL.md instructs running the script with a JSON including 'wfs_fee' (example) but the visible code expects fields named like fba_fulfillment_fee / fba_storage_fee and category/referral logic for Amazon. This mismatch will likely cause runtime errors or incorrect calculations. The instructions do not tell the user to validate inputs or warn that the engine is Amazon-oriented. Otherwise, instructions do not request unrelated files or environment variables.
Install Mechanism
There is no install spec in the registry entry and the skill is effectively instruction + a local Python script. The SKILL.md shows an npx command to add the skill (user-facing instruction), but nothing in the package forces downloads or executes installers automatically. This is a low-risk install posture in itself.
Credentials
The skill declares no required environment variables, no credentials, and the visible code does not access environment variables or external secrets. Requested surface for credentials is proportionate (none).
Persistence & Privilege
The skill is not marked always:true, is user-invocable, and does not request elevated persistence or modify other skill/system configs. Autonomous invocation is allowed by default but is not combined with other high-risk flags here.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install profit-margin-calculator-walmart - After installation, invoke the skill by name or use
/profit-margin-calculator-walmart - Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.0
Initial release of profit-margin-calculator-walmart:
- Calculate Walmart seller profit margins, including WFS fulfillment, storage, and referral fees.
- Compare key profitability metrics between Walmart and Amazon (FBA).
- Analyze category-specific referral fee rates.
- Assess Walmart's marketplace advantages for sellers.
- No API key required for use.
Metadata
Frequently Asked Questions
What is Profit Margin Calculator Walmart?
Walmart profit margin calculator for sellers. Calculate cost breakdowns including WFS fulfillment, storage fees, and referral fees. Includes comparison with... It is an AI Agent Skill for Claude Code / OpenClaw, with 122 downloads so far.
How do I install Profit Margin Calculator Walmart?
Run "/install profit-margin-calculator-walmart" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Profit Margin Calculator Walmart free?
Yes, Profit Margin Calculator Walmart is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Profit Margin Calculator Walmart support?
Profit Margin Calculator Walmart is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Profit Margin Calculator Walmart?
It is built and maintained by Henk Nie (@phheng); the current version is v0.1.0.
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