Agent skill

Agentcard Purchase

by grandamenium in grandamenium/cortextos

You need to make a purchase on behalf of the user — buy a SaaS subscription, pay for an API, purchase a domain, or any transaction requiring a credit card.

MITAuto-check passedAgent Workflows

Install Agentcard Purchase

skills CLI

$ npx skills add grandamenium/cortextos --skill agentcard-purchase -a claude-code

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

GitHub CLI

$ gh skill install grandamenium/cortextos agentcard-purchase --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/grandamenium/cortextos.git skills-src && mkdir -p .claude/skills && cp -r skills-src/community/skills/agentcard-purchase .claude/skills/agentcard-purchase && 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/

Paste into Claude Code

Install the "agentcard-purchase" agent skill from https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase into .claude/skills/agentcard-purchase/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentcard-purchase", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add grandamenium/cortextos --skill agentcard-purchase -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install grandamenium/cortextos agentcard-purchase --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/grandamenium/cortextos.git skills-src && mkdir -p .agents/skills && cp -r skills-src/community/skills/agentcard-purchase .agents/skills/agentcard-purchase && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "agentcard-purchase" agent skill from https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase into .agents/skills/agentcard-purchase/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentcard-purchase", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add grandamenium/cortextos --skill agentcard-purchase -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install grandamenium/cortextos agentcard-purchase --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/grandamenium/cortextos.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/community/skills/agentcard-purchase .cursor/skills/agentcard-purchase && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "agentcard-purchase" agent skill from https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase into .cursor/skills/agentcard-purchase/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentcard-purchase", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/grandamenium/cortextos.git --path community/skills/agentcard-purchase

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add grandamenium/cortextos --skill agentcard-purchase -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install grandamenium/cortextos agentcard-purchase --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/grandamenium/cortextos.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/community/skills/agentcard-purchase .gemini/skills/agentcard-purchase && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "agentcard-purchase" agent skill from https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase into .gemini/skills/agentcard-purchase/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentcard-purchase", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install grandamenium/cortextos agentcard-purchase

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add grandamenium/cortextos --skill agentcard-purchase -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/grandamenium/cortextos.git skills-src && mkdir -p .github/skills && cp -r skills-src/community/skills/agentcard-purchase .github/skills/agentcard-purchase && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "agentcard-purchase" agent skill from https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase into .github/skills/agentcard-purchase/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentcard-purchase", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add grandamenium/cortextos --skill agentcard-purchase -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install grandamenium/cortextos agentcard-purchase --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/grandamenium/cortextos.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/community/skills/agentcard-purchase .opencode/skills/agentcard-purchase && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "agentcard-purchase" agent skill from https://github.com/grandamenium/cortextos/tree/main/community/skills/agentcard-purchase into .opencode/skills/agentcard-purchase/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentcard-purchase", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: agentcard-purchase
GitHub stars: 101
Token cost: ~1.1k tokens
SKILL.md length: 414 words
Files: 1
Skills in repo: 55
Repo updated: Sep 23, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

You need to make a purchase on behalf of the user — buy a SaaS subscription, pay for an API, purchase a domain, or any transaction requiring a credit card.

Works in 6 steps: Request approval (uses the approvals… → Create the virtual card → Get card details for checkout → …
Request approval
SKILL.md covers When to Use, Workflow, Limits (Free Tier) and Available MCP Tools, plus 1 more section
Calls npm

What it does

Agentcard Purchase is an agent skill from grandamenium/cortextos. You need to make a purchase on behalf of the user — buy a SaaS subscription, pay for an API, purchase a domain, or any transaction requiring a credit card. Use this skill to request approval, issue a scoped virtual Visa card via AgentCard, and complete the purchase autonomously. Requires the AgentCard MCP server to be configured.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering MCP servers. It works with Model Context Protocol. The licence is MIT.

When your agent uses it

Request approval
Issue a scoped virtual Visa card via AgentCard
Complete the purchase autonomously

Example prompts

“/agentcard-purchase”

Requirements

Node.js

Workflow steps

6 steps, taken from the step headings in SKILL.md.

Request approval (uses the approvals skill)
Create the virtual card
Get card details for checkout
Complete the purchase
Verify and close
Log the result

What it can do on your machine

Read from SKILL.md and the folder at commit 6f93838. 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:
- npm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.
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

Agentcard Purchase loads about 1.1k tokens when it runs. Until then it costs about 88 tokens; SKILL.md has 414 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~88
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

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 grandamenium/cortextos at commit 6f93838, republished under its MIT licence (© grandamenium). 414 words, ~1,130 tokens.

Download SKILL.mdSave it as .claude/skills/agentcard-purchase/SKILL.md (or your agent's skills folder).

name: agentcard-purchase
description: You need to make a purchase on behalf of the user — buy a SaaS subscription, pay for an API, purchase a domain, or any transaction requiring a credit card. Use this skill to request approval, issue a scoped virtual Visa card via AgentCard, and complete the purchase autonomously. Requires the AgentCard MCP server to be configured.
triggers: buy, purchase, pay for, subscribe to, need a credit card, make a payment, sign up for paid plan, buy a domain, purchase API credits, pay invoice, need to pay…
external_calls: mcp.agentcard.sh, api.agentcard.sh

AgentCard Purchase

Issue a scoped, single-use virtual Visa card to complete a purchase. Cards are funded on demand, capped at the approved amount, and auto-close after one transaction.

Requires: AgentCard MCP server configured via agent-cards setup-mcp (CLI: npm i -g agentcard).

When to Use

You need to spend real money on behalf of the user. Examples:

Buy a domain name
Subscribe to a paid API or SaaS tool
Purchase credits (OpenAI, cloud compute, etc.)
Pay an invoice that was sent to the org

Workflow

Step 1: Request approval (uses the approvals skill)

Never create a card before getting approval. Use the financial category.

bash

APPR_ID=$(cortextos bus create-approval \
  "Purchase: $VENDOR — $AMOUNT for $REASON" \
  "financial" \
  "Vendor: $VENDOR | Amount: \$$AMOUNT | Justification: $REASON")
echo "APPR_ID=$APPR_ID"

cortextos bus update-task "$TASK_ID" blocked
cortextos bus send-telegram "$CTX_TELEGRAM_CHAT_ID" \
  "Purchase approval needed: \$$AMOUNT for $VENDOR — $REASON"

Wait for approval via inbox. Do not proceed until you receive decision: approved.

Step 2: Create the virtual card

After approval, issue a card scoped to the purchase amount. Amount is in cents.

Use the AgentCard MCP tools:

mcp__agent-cards__create_card(amount_cents: NUMBER, sandbox: false)

Example for a $15 purchase:

mcp__agent-cards__create_card(amount_cents: 1500)

The tool returns: card ID, last4, expiry, balance, and billing address.

Step 3: Get card details for checkout

mcp__agent-cards__get_card_details(card_id: "CARD_ID")

Returns full PAN, CVV, expiry month/year, and billing address. Use these to fill checkout forms.

Step 4: Complete the purchase

Use the card details to complete checkout. For web purchases, use browser automation or fill forms via API. The billing address is:

2261 Market Street #4242
San Francisco, CA 94114, US

Step 5: Verify and close

Check that the transaction went through:

mcp__agent-cards__list_transactions(card_id: "CARD_ID")

Cards auto-close after one transaction. If the purchase failed or you no longer need the card:

mcp__agent-cards__close_card(card_id: "CARD_ID")

Step 6: Log the result

bash

cortextos bus complete-task "$TASK_ID" --result "Purchased $VENDOR for \$$AMOUNT. Card ****$LAST4. Transaction: $STATUS"
cortextos bus log-event task purchase_completed info --meta "{\"vendor\":\"$VENDOR\",\"amount_cents\":$AMOUNT_CENTS,\"card_last4\":\"$LAST4\"}"

Show full SKILL.md (176 more words)Show less

Limits (Free Tier)

Limit	Value
Cards per month	5
Max per card	$50
Card lifetime	7 days (unused)
Transactions per card	1 (single-use)

Upgrade to Basic ($15/mo) for 15 cards/month and $500 max per card: agent-cards plan upgrade.

Available MCP Tools

Tool	Purpose
`create_card`	Issue a new virtual card (amount_cents, sandbox)
`list_cards`	List all cards with status
`get_card_details`	Get PAN, CVV, expiry for checkout
`check_balance`	Check remaining balance (no sensitive data)
`close_card`	Permanently close a card
`list_transactions`	View transactions for a card

Critical Rules

Approval first, always. Never create a card without an approved financial approval.
Scope the amount. Create the card for the exact purchase amount, not more. If a $12 domain, create a $12 card (1200 cents).
One card per purchase. Do not reuse cards across transactions.
Close unused cards. If the purchase fails or is cancelled, close the card immediately.
Never log full PAN/CVV. Only reference cards by last4 in task results and events.
Sandbox for testing. Use sandbox: true when testing the flow without real charges.

Files

Just SKILL.md in community/skills/agentcard-purchase of grandamenium/cortextos.

Open the folder on GitHubat commit 6f93838

Compare with similar skills

Agentcard Purchase 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.

Agentcard Purchase compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Agentcard Purchase this skillgrandamenium/cortextos	101	—	~1.1k	Automated safety check: Pass	MIT	18 days ago
MCP Server Builderanthropics/skills	180k	63 repos	~2.3k	Automated safety check: Pass	Apache-2.0	2 days ago
MCP Server BuildershareAI-lab/learn-claude-code	78k	4 repos	~1.2k	Automated safety check: Pass	MIT	13 days ago
MCP Integration for Pluginsanthropics/claude-plugins-official	38k	11 repos	~3.1k	Automated safety check: Pass	Apache-2.0	today
Crush Configurationcharmbracelet/crush	29k	—	~3.7k	Automated safety check: Pass	Custom licence	today
Context Mode Output Sandboxmksglu/context-mode	26k	—	~4.1k	Automated safety check: Pass	Custom licence	today

Similar skills

MCP Server Builder
anthropics/skills
Official
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
180k GitHub starsUsed in 63 repos~2.3k tokens
Agent WorkflowsAuto-check passed
MCP Server Builder
shareAI-lab/learn-claude-code
Walks through building MCP servers in Python or TypeScript that expose tools, resources and prompts to Claude, with templates, registration and testing.
78k GitHub starsUsed in 4 repos~1.2k tokens
Agent WorkflowsAuto-check passed
MCP Integration for Plugins
anthropics/claude-plugins-official
Official
Explains how to bundle Model Context Protocol servers in a Claude Code plugin, covering config files, stdio, SSE, HTTP and WebSocket server types, and authentication.
38k GitHub starsUsed in 11 repos~3.1k tokens
Agent WorkflowsAuto-check passed
Crush Configuration
charmbracelet/crush
Explains how to configure the Crush coding agent with crushrc or crush.json, covering providers, models, LSPs, MCP servers, hooks, permissions and config precedence.
29k GitHub stars~3.7k tokensUpdated today
Agent WorkflowsAuto-check passed
Context Mode Output Sandbox
mksglu/context-mode
Routes large command, file, API and browser output through context-mode tools so only the needed result enters the agent's context, instead of dumping it via Bash.
26k GitHub stars~4.1k tokensUpdated today
Agent WorkflowsAuto-check passed
Warp GUI to Agent CLI Migration
warpdotdev/warp
Migrates the compatible subset of settings and global file-based MCP servers from the Warp desktop app into Warp Agent CLI without exposing credentials or state.
65k GitHub starsUsed in 1 repo~2.1k tokens
Agent WorkflowsAuto-check passed

More from grandamenium/cortextos

All 55 skills in this repo

Cortext Self Diagnosis
grandamenium/cortextos
Diagnose cortextOS itself when the framework misbehaves — an agent has gone silent or wedged, agents are crash-looping, Telegram or agent-to-agent messages are not arriving, crons did not fire, an…
101 GitHub stars~3.7k tokensUpdated 18 days ago
Auto-check passed
Activity Channel
grandamenium/cortextos
You have completed something significant and want the whole org — all agents and the user — to know about it.
101 GitHub stars~624 tokensUpdated 18 days ago
Auto-check passed
Claude To Codex Migration
grandamenium/cortextos
Migrate ANY cortextOS agent from the claude-code runtime to the live codex-app-server runtime.
101 GitHub stars~12k tokensUpdated 18 days ago
Auto-check: warnings
Bus Reference
grandamenium/cortextos
Complete cortextos bus CLI reference - all available commands with examples.
101 GitHub stars~3.8k tokensUpdated 18 days ago
Auto-check passed
Business News Monitor
grandamenium/cortextos
Daily cron-driven scan of news/forums/social in a domain to surface market shifts, new competitors, regulatory changes, and net-new opportunities.
101 GitHub stars~1.3k tokensUpdated 18 days ago
Auto-check passed
Cron Management
grandamenium/cortextos
Manage scheduled tasks (crons). An agent skill from grandamenium/cortextos.
101 GitHub stars~1.1k tokensUpdated 18 days ago
Auto-check passed

Works with

Model Context Protocol

Questions about Agentcard Purchase

What does Agentcard Purchase do?

You need to make a purchase on behalf of the user — buy a SaaS subscription, pay for an API, purchase a domain, or any transaction requiring a credit card. Agentcard Purchase is an agent skill from grandamenium/cortextos. You need to make a purchase on behalf of the user — buy a SaaS subscription, pay for an API, purchase a domain, or any transaction requiring a credit card.

When should I use Agentcard Purchase?

Agentcard Purchase fits situations like: request approval; issue a scoped virtual Visa card via AgentCard; complete the purchase autonomously.

How do I install Agentcard Purchase in Claude Code?

Run `npx skills add grandamenium/cortextos --skill agentcard-purchase -a claude-code`. Or copy the skill folder (community/skills/agentcard-purchase in grandamenium/cortextos) into .claude/skills/agentcard-purchase in your project. Claude Code loads it when a task matches its description.

How do I install Agentcard Purchase in Codex?

Run `npx skills add grandamenium/cortextos --skill agentcard-purchase -a codex`. Or copy the skill folder (community/skills/agentcard-purchase in grandamenium/cortextos) into .agents/skills/agentcard-purchase in your project. Codex loads it when a task matches its description.

Can I use Agentcard Purchase 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 grandamenium/cortextos --skill agentcard-purchase -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agentcard-purchase, .gemini/skills/agentcard-purchase, .github/skills/agentcard-purchase and .opencode/skills/agentcard-purchase in your project.

What does Agentcard Purchase need to run?

Going by SKILL.md and its folder, Agentcard Purchase needs the command-line tools its instructions call (npm). Our summary lists: Node.js.

Does Agentcard Purchase access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Agentcard Purchase 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 Agentcard Purchase use?

Agentcard Purchase is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Agentcard Purchase use?

About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Agentcard Purchase?

Skills that share tags, products or a category with Agentcard Purchase: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Crush Configuration (charmbracelet/crush, 29k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Agentcard Purchase?

grandamenium (a GitHub user) maintains it in grandamenium/cortextos, which has 101 GitHub stars. The repository holds 55 skills in this directory. The repository was last updated on September 23, 2026.

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

Install Agentcard Purchase

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

AgentCard Purchase

When to Use

Workflow

Step 1: Request approval (uses the approvals skill)

Step 2: Create the virtual card

Step 3: Get card details for checkout

Step 4: Complete the purchase

Step 5: Verify and close

Step 6: Log the result

Limits (Free Tier)

Available MCP Tools

Critical Rules

Files

Compare with similar skills

Similar skills

More from grandamenium/cortextos

Related

Questions about Agentcard Purchase