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Agent skill

Stripe Best Practices

by Asymmetric-al in Asymmetric-al/core

Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and…

AGPL-3.0Auto-check passedBackend & APIs

Install Stripe Best Practices

skills CLI
$ npx skills add Asymmetric-al/core --skill stripe-best-practices -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Asymmetric-al/core stripe-best-practices --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Asymmetric-al/core.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/stripe-best-practices .claude/skills/stripe-best-practices && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
stripe-best-practices
GitHub stars
381
Token cost
~1.3k tokens
SKILL.md length
511 words
Files
7 (incl. references)
Skills in repo
43
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and…

  • Reviewing any Stripe integration
  • SKILL.md covers Integration routing, Critical rules and Key documentation
  • Calls stripe and npm
  • Including accepting payments

What it does

Stripe Best Practices is an agent skill from Asymmetric-al/core. Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and registrations (Stripe Tax, automatictax, product tax codes), Treasury financial accounts, integration options (Checkout, Payment Element), migrating from deprecated Stripe APIs, and security best practices (API key management, restricted keys, webhooks, OAuth). Use when building, modifying, or reviewing any Stripe integration…

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `references/billing.md`, `references/connect.md` and `references/payments.md`).

It sits in Backend & APIs, covering Tax preparation, Payments and billing and Webhooks. It works with Stripe. The repository describes itself as: A high-performance, enterprise-grade Next.js 16 application for mission-focused non-profit organizations. Built for high impact teams. The licence is AGPL-3.0.

When your agent uses it

  • Reviewing any Stripe integration
  • Including accepting payments
  • Building marketplaces
  • Integrating Stripe

Example prompts

  • “Use the stripe-best-practices skill to guide Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect…”
  • “/stripe-best-practices”

Requirements

  • Python 3
  • Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit c30c8ff. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • stripe
    • npm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • docs.stripe.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Stripe Best Practices loads about 1.3k tokens when it runs, and up to ~15k if it reads all its reference files. Until then it costs about 190 tokens; SKILL.md has 511 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~190
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~15k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Asymmetric-al/core at commit c30c8ff, republished under its AGPL-3.0 licence (© Asymmetric-al). 511 words, ~1,298 tokens.

Download SKILL.mdSave it as .claude/skills/stripe-best-practices/SKILL.md (or your agent's skills folder). This skill also uses 6 other files; get the full folder from GitHub.
name
stripe-best-practices
description
Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and registrations (Stripe Tax, automatic_tax, product tax codes), Treasury financial accounts, integration options (Checkout, Payment Element), migrating from deprecated Stripe APIs, and security best practices (API key management, restricted keys, webhooks, OAuth). Use when building, modifying, or reviewing any Stripe integration, including accepting payments, building marketplaces, integrating Stripe, processing payments, setting up subscriptions, collecting sales tax, VAT, or GST, creating connected accounts, or implementing secure key handling.

In Core, read packages/api/src/stripe/api-version.ts and packages/api/package.json for the approved API version and SDK. Reuse the existing Stripe client. Preserve those pins unless the requested work explicitly includes a reviewed version upgrade; choose and verify that upgrade target before changing code. The upstream versions and examples below are reference snapshots, not Core upgrade instructions.

Upstream API reference snapshot: 2026-07-29.dahlia.

Upstream SDK reference snapshots (Core uses its approved manifest and lockfile):

LanguageLatest version
Ruby19.4.0
Python15.4.0
Node.js22.4.0
PHP21.1.0
Java33.2.0
Go86.2.0
.NET52.2.0

If you don’t have a Stripe account, you can call a CLI command to generate working API keys with no registration required. You can install the Stripe CLI (npm i -g @stripe/cli) and run the command stripe sandbox create to get started.

If stripe sandbox create is used, don’t use MCP.

If you try to use MCP after running sandbox creation, first make sure stripe sandbox claim is run. Use stripe whoami --format json for CLI auth checks; do not run stripe config --list.

API key default: Always recommend a restricted API key (RAK) (rk_ prefix) over a secret key (sk_ prefix).

Integration routing

Building…Recommended APIDetails
One-time paymentsCheckout Sessions<references/payments.md>
Custom payment form with embedded UICheckout Sessions + Payment Element<references/payments.md>
Saving a payment method for laterSetup Intents<references/payments.md>
Connect platform or marketplaceAccounts v2 (/v2/core/accounts)<references/connect.md>
Usage-based billing (new integration)Metronome<references/billing.md>
Subscriptions or recurring billingBilling APIs + Checkout Sessions<references/billing.md>
Sales tax, VAT, or GST complianceStripe Tax + Registrations API<references/tax.md>
Embedded financial accounts / bankingv2 Financial Accounts<references/treasury.md>
Security (key management, RAKs, webhooks, OAuth, 2FA, Connect liability)See security reference<references/security.md>

Read the relevant reference file before answering any integration question or writing code.

Show full SKILL.md (224 more words)Show less

Critical rules

  • Before enabling automatic_tax: { enabled: true } (or calculating tax for a custom PaymentIntent), read the tax reference and confirm the user has an active registration. Without one, Stripe calculates and collects no tax while the user believes tax is on (the most common Stripe Tax mistake).

  • Preserve Core's quoted payment method. packages/api/src/donate/payment-intent.ts intentionally passes payment_method_types when the gift quote binds the allowed method (including card versus ACH fee assumptions). Keep that allowlist and its idempotent recovery behavior. The same helper enables automatic_payment_methods only when no method restriction is supplied. Do not replace this contract with Dashboard-driven dynamic methods during unrelated work. For a new integration, verify the supported options in the pinned SDK and PaymentIntent creation API.

  • On API version 2026-03-25.dahlia or later, pass the parameter integration_identifier to checkout.sessions.create to tag sessions with a custom label for tracking and comparing checkout flows in the Dashboard. The label should include a suffix of 8 random letters.

  • Always instantiate a StripeClient and call methods on that instance. Do not use the deprecated global/module-level API key pattern (stripe.api_key = …, Stripe.setApiKey, stripe.Key = …, StripeConfiguration.ApiKey = …). The global pattern is deprecated in all current SDKs.

Key documentation

When the user’s request does not clearly fit a single domain above, consult:

© Asymmetric-al, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 6 other files (references) in .agents/skills/stripe-best-practices of Asymmetric-al/core.

  • SKILL.md
  • references/billing.md
  • references/connect.md
  • references/payments.md
  • references/security.md
  • references/tax.md
  • references/treasury.md

Open the folder on GitHubat commit c30c8ff

Compare with similar skills

Stripe Best Practices next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Stripe Best Practices compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Stripe Best Practices this skillAsymmetric-al/core381—~1.3kAutomated safety check: PassAGPL-3.0
Stripe Best Practicesfossasia/eventyay1.7k1 repos~1.7kAutomated safety check: PassApache-2.0
Stripe Best Practiceskanchengw/cnllm1732 repos~925Automated safety check: PassApache-2.0
cmux Billing Runbookmanaflow-ai/cmux28k—~2.8kAutomated safety check: PassCustom licence
Stripe Patternsbybren-llc/safe-agentic-workflow423—~1.2kAutomated safety check: PassMIT
Stripe Integration Expertalirezarezvani/claude-skills28k1 repos~3.7kAutomated safety check: PassMIT

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Works with

Categories

Questions about Stripe Best Practices

What does Stripe Best Practices do?

Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and…. Stripe Best Practices is an agent skill from Asymmetric-al/core. Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and registrations (Stripe Tax, automatictax, product tax codes), Treasury financial accounts, integration options (Checkout, Payment Element), migrating from deprecated Stripe APIs, and security best practices (API key management, restricted keys, webhooks, OAuth).

When should I use Stripe Best Practices?

Stripe Best Practices fits situations like: reviewing any Stripe integration; including accepting payments; building marketplaces; integrating Stripe.

How do I install Stripe Best Practices in Claude Code?

Run `npx skills add Asymmetric-al/core --skill stripe-best-practices -a claude-code`. Or copy the skill folder (.agents/skills/stripe-best-practices in Asymmetric-al/core) into .claude/skills/stripe-best-practices in your project. Claude Code loads it when a task matches its description.

How do I install Stripe Best Practices in Codex?

Run `npx skills add Asymmetric-al/core --skill stripe-best-practices -a codex`. Or copy the skill folder (.agents/skills/stripe-best-practices in Asymmetric-al/core) into .agents/skills/stripe-best-practices in your project. Codex loads it when a task matches its description.

Can I use Stripe Best Practices in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Asymmetric-al/core --skill stripe-best-practices -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/stripe-best-practices, .gemini/skills/stripe-best-practices, .github/skills/stripe-best-practices and .opencode/skills/stripe-best-practices in your project.

What does Stripe Best Practices need to run?

Going by SKILL.md and its folder, Stripe Best Practices needs the command-line tools its instructions call (stripe and npm). Our summary lists: Python 3; Node.js.

Does Stripe Best Practices access the network?

SKILL.md names 1 domain. As links in the text: docs.stripe.com. This is read from the text; nothing was executed.

Is Stripe Best Practices safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Stripe Best Practices use?

Stripe Best Practices is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Stripe Best Practices use?

About 1.3k tokens (SKILL.md is roughly 5.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 13k tokens, read only when the agent opens those files.

What are the alternatives to Stripe Best Practices?

Skills that share tags, products or a category with Stripe Best Practices: Stripe Best Practices (fossasia/eventyay, 1.7k stars), Stripe Best Practices (kanchengw/cnllm, 173 stars), cmux Billing Runbook (manaflow-ai/cmux, 28k stars) and Stripe Patterns (bybren-llc/safe-agentic-workflow, 423 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Stripe Best Practices?

Asymmetric-al (a GitHub organization) maintains it in Asymmetric-al/core, which has 381 GitHub stars. The repository holds 43 skills in this directory. The repository was last updated on October 9, 2026.

Source: Asymmetric-al/core on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.