sezzle-merchant-mcp: Instructions file for GitHub Copilot

.github/copilot-instructions.md

sezzle-merchant-mcp copilot-instructions.md is an instructions file for GitHub Copilot from onatozmenn/sezzle-merchant-mcp. It costs 216 tokens per session, scanned A, original, MIT.

A set of project instructions for developing an unofficial MCP server for Sezzle merchant operations. Sezzle is a payment service, and MCP is a standard way for AI tools to use external services.

In plain words
What is it for?
It is for maintaining features such as merchant operations, settlement reconciliation, webhook monitoring, and integration diagnostics. It also defines testing, type-checking, and security rules for code changes.
Why use it?
It keeps development aligned with Sezzle’s published API while requiring checks around permissions, confirmations, ownership, money calculations, and sensitive data.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is onatozmenn/sezzle-merchant-mcp's own configuration. It tells GitHub Copilot how to work on sezzle-merchant-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sezzle-merchant-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to onatozmenn/sezzle-merchant-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/onatozmenn/sezzle-merchant-mcp/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/onatozmenn/sezzle-merchant-mcp

Made for: GitHub Copilot.

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 sezzle-merchant-mcp copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/onatozmenn/sezzle-merchant-mcp/copilot-instructions/github.svg)](https://agentmods.dev/instructions/onatozmenn/sezzle-merchant-mcp/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/onatozmenn/sezzle-merchant-mcp/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/onatozmenn/sezzle-merchant-mcp/copilot-instructions/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sezzle-merchant-mcp copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/onatozmenn/sezzle-merchant-mcp/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/onatozmenn/sezzle-merchant-mcp/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 216 This file is loaded in full into every session.
When invoked 216 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00216 $0.00216
Opus 5.5 $0.00086 $0.00086
Sonnet 5.5 $0.00043 $0.00043
Haiku 4.5 $0.00022 $0.00022

Measured 2mo ago against content hash 4b2ad457fce5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sezzle-merchant-mcp copilot-instructions.md 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 2mo 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.

.github/copilot-instructions.md · 11 lines

What it actually says

SezzleOps MCP repository instructions

  • Treat https://docs.sezzle.com/llms.txt and https://docs.sezzle.com/openapi.yaml as the source of truth for Sezzle merchant endpoints and schemas.
  • Do not add an endpoint that is absent from the published Sezzle OpenAPI document.
  • Use the production MCP TypeScript SDK v1 documentation at https://ts.sdk.modelcontextprotocol.io/ and source at https://github.com/modelcontextprotocol/typescript-sdk/tree/v1.x.
  • Keep MCP registration thin. Put validation and workflows in services and deterministic arithmetic in domain modules.
  • Store money as integer minor units and calculate with bigint; never use floating-point arithmetic for financial values.
  • Never weaken read-only registration, permission filtering, explicit confirm: true, preview binding, idempotency, redaction, or merchant ownership checks.
  • Never log API secrets, bearer tokens, complete webhook signatures, customer personal data, or payment details.
  • Run focused tests and npm run typecheck after changes to behavior.
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. 2mo ago First seen · 11 lines · 216 tokens per session scan A 4b2ad457fce5

Subscribe to this mod's changes

sezzle-merchant-mcp copilot-instructions.md is an instructions file published in the GitHub repository onatozmenn/sezzle-merchant-mcp (1 stars, last pushed 29d ago), licensed MIT. It adds 216 tokens to every session, about $0.0009 per session on Opus 5.5. 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.

Related

sezzle-merchant-mcp copilot-instructions.md compared with instructions from other repositories

sezzle-merchant-mcp copilot-instructions.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
sezzle-merchant-mcp copilot-instructions.mdonatozmenn/sezzle-merchant-mcpInstructions file129d agoMITA216GitHub Copilot
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k3d agoMITA4,313Codex, OpenCode