Zephyr_mcp_server: Instructions file for Claude Code

CLAUDE.md

Zephyr_mcp_server CLAUDE.md is an instructions file for Claude Code from Milo0821/Zephyr_mcp_server. It costs 1,899 tokens per session, scanned B, original, MIT.

Project instructions for a server that connects AI assistants to Zephyr Scale, a test-management system used with Jira. The server provides tools for managing test cases, test runs, and test executions through Jira's API.

In plain words
What is it for?
Building and testing the TypeScript MCP server, supporting Jira Cloud and Jira Data Center, converting behavior-driven tests into Gherkin format, and generating weekly reports.
Why use it?
It gives developers a shared reference for the server's structure, configuration, API routing, testing, and build process when working on the project.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is Milo0821/Zephyr_mcp_server's own configuration. It tells Claude Code how to work on Zephyr_mcp_server 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 Zephyr_mcp_server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Milo0821/Zephyr_mcp_server. 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/Milo0821/Zephyr_mcp_server/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Milo0821/Zephyr_mcp_server

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 1,899 This file is loaded in full into every session.
When invoked 1,899 The same file — it is already loaded in full.
Security scan B 1 finding. 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 $0.01899 $0.01899
Opus 5.5 $0.00760 $0.00760
Sonnet 5.5 $0.00380 $0.00380
Haiku 4.5 $0.00190 $0.00190

Measured 1mo ago against content hash 0d2b1743adf7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

Zephyr_mcp_server CLAUDE.md scanned grade B with 1 finding 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 1mo 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

npm run build # tsc + chmod 755 build/index.js
CLAUDE.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Zephyr Scale MCP Server

Project Overview

A Model Context Protocol (MCP) server that bridges AI assistants to Zephyr Scale test case management. It supports both Jira Cloud and Jira Data Center, exposing tools and resources for creating, reading, and managing test cases, test runs, and test executions via the Atlassian REST API.

Published to npm as zephyr-scale-mcp-server (v0.3.2).


Architecture

src/
├── index.ts          # MCP server entry point — wires transport, tools, resources
├── tool-handlers.ts  # ZephyrToolHandlers class — all tool implementations
├── tool-schemas.ts   # MCP tool input schemas (JSON Schema)
├── resources.ts      # MCP resource handlers (file://, zephyr://testcase/, zephyr://examples/)
├── types.ts          # TypeScript interfaces (TestCaseArgs, JiraConfig, etc.)
└── utils.ts          # Jira config, BDD→Gherkin conversion, API endpoint routing
build/                # Compiled output (ES2022, Node16 modules) — committed to repo
test/
├── run-tests.cjs     # Main test runner (unit + integration)
├── zephyr-server.test.cjs  # Unit tests
└── integration.test.cjs    # Integration tests (require live env vars)
scripts/
└── weekly-report.cjs # Standalone weekly report script

Module system: The server uses ES modules ("type": "module" in package.json); test files use .cjs extension to stay CommonJS.


Build & Run

npm run build          # tsc + chmod 755 build/index.js
npm start              # node build/index.js
npm run watch          # tsc --watch
npm run inspector      # MCP inspector UI

Always run npm run build after editing src/ — the build/ directory is what gets published and executed.


Testing

npm test               # unit + integration (needs env vars for integration)
npm run test:unit      # unit tests only — no env vars required
npm run test:integration

Unit tests check: package config, build artifacts, environment variables, server startup, tool registration. Integration tests require at minimum ZEPHYR_BASE_URL to be set.

Read the full file on GitHub · 160 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. 1mo ago Changed · +2 lines · +225 tokens per session 0d2b1743adf7
  2. 2mo ago First seen · 158 lines · 1,674 tokens per session scan B 8e70bedd1251

Subscribe to this mod's changes

Zephyr_mcp_server CLAUDE.md is an instructions file published in the GitHub repository Milo0821/Zephyr_mcp_server (6 stars, last pushed 1mo ago), licensed MIT. It adds 1,899 tokens to every session, about $0.0076 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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