datagate-mcp: Instructions file for Codex

AGENTS.md

datagate-mcp AGENTS.md is an instructions file for Codex, OpenCode from hyamie/datagate-mcp. It costs 372 tokens per session, scanned A, original, MIT.

Repository instructions for an MCP server and command-line tool that manages DataGate billing data such as customers, invoices, products, agreements, sites, and payments.

In plain words
What is it for?
Use them when editing this repository so the agent follows its Python conventions, uses the required confirmation checks, respects API limits, and runs the import smoke test after changes.
Why use it?
They give the coding agent project-specific rules, including how to verify changes and how to handle irreversible payment operations safely.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads ~/.codex paths; mentions AGENTS.md; mentions Codex.

This is hyamie/datagate-mcp's own configuration. It tells Codex and OpenCode how to work on datagate-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 datagate-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to hyamie/datagate-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/hyamie/datagate-mcp/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/hyamie/datagate-mcp

Made for: Codex, OpenCode.

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 datagate-mcp AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/hyamie/datagate-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/hyamie/datagate-mcp/agents-md/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 datagate-mcp AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/hyamie/datagate-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/hyamie/datagate-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 372 This file is loaded in full into every session.
When invoked 372 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 $0.00372 $0.00372
Opus 5.5 $0.00149 $0.00149
Sonnet 5.5 $0.00074 $0.00074
Haiku 4.5 $0.00037 $0.00037

Measured 2mo ago against content hash ee6a99a3ec37, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

datagate-mcp 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 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.

AGENTS.md · 29 lines

What it actually says

AGENTS.md — datagate-mcp

Repo-specific Codex guidance. Global behavioral directives (outcome-driven, anti-exploration, batch-reads) live in ~/.codex/AGENTS.md and apply on top of this.

What this is

MCP server + Click CLI for the DataGate (dgportal.net) billing platform — customers, invoices, products, agreements, sites, payments. MCP tools are read-only; CLI does full CRUD.

Stack

Python ≥3.10 · hatchling build · httpx · Click (CLI) · FastMCP (mcp[cli]) · rich. Distributed on PyPI (pip install datagate-mcp / uvx datagate-mcp).

Verify — run after every change (mandatory)

# no automated checks configured in this repo (no test suite, no ruff/mypy config)
# smoke-check imports compile after editing:
python -c "import datagate_mcp.client, datagate_mcp.server, datagate_mcp.cli"

Conventions

  • All CLI write ops require --confirm. Payments are IRREVERSIBLE (void only via the DataGate portal).
  • Client auto-paces to the API limits (60/min, 5000/day) — don't bypass the pacing.
  • Config via env: DATAGATE_API_KEY, DATAGATE_CLIENT_ID (optional DATAGATE_BASE_URL). Never hardcode.

Where things live

  • src/datagate_mcp/: client.py (HTTP + rate-limit pacing), server.py (MCP tools), cli.py (Click CRUD).
  • pyproject.toml: build config + datagate / datagate-mcp entry points.
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 · 29 lines · 372 tokens per session scan A ee6a99a3ec37

Subscribe to this mod's changes

datagate-mcp AGENTS.md is an instructions file published in the GitHub repository hyamie/datagate-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 372 tokens to every session, about $0.0015 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

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