mercato-dapp: Instructions file for Codex

AGENTS.md

mercato-dapp AGENTS.md is an instructions file for Codex, OpenCode from mercato-supply-chain/mercato-dapp. It costs 3,818 tokens per session, scanned A, original, Apache-2.0.

A repository guide for an application called mercato-dapp, which provides supply-chain financing on the Stellar blockchain. It explains the project’s architecture, documentation, domain terms, and user roles.

In plain words
What is it for?
Use it as a starting reference when working on the Next.js application, Supabase data and authentication, Stellar payments, Trustless Work escrow, or the project documentation.
Why use it?
It gives coding agents the project context they need before reviewing or changing the application, including its database, authentication, payments, and escrow systems.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is mercato-supply-chain/mercato-dapp's own configuration. It tells Codex and OpenCode how to work on mercato-dapp 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 mercato-dapp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mercato-supply-chain/mercato-dapp. 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/mercato-supply-chain/mercato-dapp/develop/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/mercato-supply-chain/mercato-dapp

Made for: Codex, OpenCode.

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Per session 3,818 This file is loaded in full into every session.
When invoked 3,818 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 $0.03818 $0.03818
Opus 5 $0.01909 $0.01909
Sonnet 5 $0.00764 $0.00764
Haiku 4.5 $0.00382 $0.00382

Measured 3d ago against content hash 9a97de983ab7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mercato-dapp AGENTS.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 3d 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.

AGENTS.md · 289 lines

How it starts

The opening of the file, as written. The whole thing — 289 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MERCATO — Agent Guide

Start here if you are an AI agent evaluating, reviewing, or modifying this repository. Human contributors: see README.md and CONTRIBUTING.md.

Quick facts

Field Value
Product Supply chain finance on Stellar — PyMEs buy inventory with investor capital; suppliers paid up front; investors repaid via Trustless Work multi-release escrow
Repository mercato-dapp (Next.js monolith)
License Apache-2.0
Primary network Stellar (testnet by default)
Auth & data Supabase (Postgres + Auth)
Settlement Classic USDC payments (funding) + Trustless Work Soroban escrow (repayment)
Package manager Bun (bun install, bun dev, bun test)

Documentation map

Read documents in this order depending on your task:

Document Use when you need…
AGENTS.md (this file) Orientation, lifecycles, file index, signing rules, what is / isn't implemented
README.md Product summary, stakeholder value, setup overview, feature list
doc/architecture.md Deep architecture, Mermaid diagrams, ramp/escrow flows, env reference
doc/technical-architecture.md Reviewer-grade current/target architecture, including MoneyGram and Privy coexistence plans
SETUP.md Step-by-step local setup checklist
env.sample Complete environment variable list
lib/anchors/README.md Fiat ramp anchor interface and provider clients
CONTRIBUTING.md Branch policy (develop), PR expectations, Drips Wave

Domain glossary

Term Meaning
PyME Small/medium business (buyer). Creates deals, confirms delivery, micro-funds repayment escrow.
Investor Funds supplier invoice + 1% platform fee in USDC; receives principal + yield from repayment milestones.
Supplier Ships goods; receives full invoice amount at funding (fee-free).
Admin Platform operator: deploys repayment escrows, approves/releases milestones, manages DeFindex vault monitor.
Direct funding Investor → supplier (principal) + platform (1% fee) via classic Stellar USDCnot escrowed.
Repayment escrow Trustless Work multi-release contract: PyME funds grossed amount; admin releases to investor in milestones.
Grossed repayment Amount PyME must fund so investor nets principal + yield after platform 1% + TW 0.3% fees (lib/deals/fees.ts).
SAC Stellar Asset Contract (Soroban token); used for TW escrow trustline and DeFindex vault assets.

Read the full file on GitHub · 289 lines

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. 3d ago Changed · -12 tokens per session 9a97de983ab7
  2. 10d ago First seen · 289 lines · 3,830 tokens per session scan A c6a107660ca4

Subscribe to this mod's changes

mercato-dapp AGENTS.md is an instructions file published in the GitHub repository mercato-supply-chain/mercato-dapp (3 stars, last pushed 4d ago), licensed Apache-2.0. It adds 3,818 tokens to every session, about $0.0191 per session on Opus 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.

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