rakuten-pantry-mcp: Instructions file for Codex

AGENTS.md

rakuten-pantry-mcp AGENTS.md is an instructions file for Codex, OpenCode from yukincom/rakuten-pantry-mcp. It costs 302 tokens per session, scanned A, original, MIT.

A repository guide for rakuten-pantry-mcp, an MCP server that searches Rakuten Ichiba, a Japanese online shopping marketplace. It documents the project’s commands, important files, and custom price-and-shipping comparison behavior.

In plain words
What is it for?
Installing, type-checking, testing, and building the project; locating its main implementation files; and working on unit-price, shipping, and Rakuten item-comparison features.
Why use it?
It gives coding agents the project-specific context needed to change or test the code correctly. It also identifies when to use the combined-value comparison instead of a basic item search.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

Nothing to install: this file belongs to yukincom/rakuten-pantry-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/yukincom/rakuten-pantry-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/yukincom/rakuten-pantry-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.

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README.md
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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.

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Per session 302 This file is loaded in full into every session.
When invoked 302 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 $0.00302 $0.00302
Opus 5 $0.00151 $0.00151
Sonnet 5 $0.00060 $0.00060
Haiku 4.5 $0.00030 $0.00030

Measured 10d ago against content hash 89336486ceca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

rakuten-pantry-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 10d 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 · 28 lines

What it actually says

AGENTS.md — rakuten-pantry-mcp

mrslbt/rakuten-mcp の Ichiba 改造版。
upstream にない追加: quantity, unitPrice, postageLabel, shippingVerified, compare_ichiba_value

コマンド

npm install
npm run typecheck && npm test && npm run build

改造の中心ファイル

ファイル 役割
src/tools/ichiba.ts 単価・送料フラグの本体
src/prompts/ichiba.ts compare_ichiba_value
src/prompts/schema.ts プロンプト引数の数値→文字列変換
src/server.ts プロンプト登録・SERVER_INSTRUCTIONS

compare_ichiba_value

単価比較や送料込みの並び替えを求められたときは、ichiba_item_search 単体よりこちらを優先。

upstream

mrslbt/rakuten-mcp v1.1.0 ベース。Ichiba 以外のツールは意図的に含めていない。

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. 10d ago First seen · 28 lines · 302 tokens per session scan A 89336486ceca

Subscribe to this mod's changes

rakuten-pantry-mcp AGENTS.md is an instructions file published in the GitHub repository yukincom/rakuten-pantry-mcp (1 stars, last pushed 2mo ago), licensed MIT. It adds 302 tokens to every session, about $0.0015 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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