docs

A documentation rule describing how to add commercetools API namespaces and update a project's README. An API is a defined way for software to communicate with a service.

In plain words
What is it for?
Use it when adding a commercetools operation, researching its official API documentation, and recording available tools such as product creation or updates.
Why use it?
It gives contributors a repeatable process for documenting new commercetools tools while preserving the existing README format.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/commercetools/mcp-essentials/docs
Clone the repo
git clone --depth 1 https://github.com/commercetools/mcp-essentials

Made for: Cursor.

Per session 4 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 322 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00004 $0.00322
Opus 5 $0.00002 $0.00161
Sonnet 5 $0.00001 $0.00064
Haiku 4.5 $0.00000 $0.00032

Measured yesterday against content hash ff73b5240762, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docs 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 yesterday.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • docs — 97% identical, 2 lines differ
.cursor/rules/docs.mdc · 31 lines

What it actually says

Creating a New namespace tool Function in @commercetools/agent-essentials

Updating the README.md file in the project root with the newly added feature or namespaces

This document outlines the steps taken to implement an updated README.md file by connecting to the official commercetools API.

The following steps are defining implementation of an example products.create. So the (namespace) here refers to product.

Implementation Steps

  1. Gather info regarding the (namespace)
  1. Define Available Tools In the ### Special Tool Options section of the Available Tools add to the end of the table the newly created or provided namespaces
    • Using the namespace fetched in previous step and complete the table like the example provided below using the product namespace

| products.read | Read product information | | products.create | Create product information | | products.update | Update product information |

  1. After updating the Available Tools table, ensure all the original formatting is maintained and do not add or carryout any other special editing or formatting.
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. yesterday First seen · 31 lines · 4 tokens per session scan A ff73b5240762

Subscribe to this mod's changes

docs is a cursor rule published in the GitHub repository commercetools/mcp-essentials (13 stars, last pushed 15d ago), licensed MIT. It adds 4 tokens to every session and 322 once invoked, about $0.0000 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 2026-08-30.