What is mcp-atlassian CLAUDE.md?

Development instructions for an Atlassian integration server. Atlassian provides tools such as Jira for issue tracking and Confluence for shared documentation; the server connects agents to them through MCP.

Use it when developing or maintaining this Jira and Confluence MCP server, including its services, tools, configuration, and build process.

It gives contributors the commands and code layout needed to build, run, format, lint, and inspect the integration. The input says no real test suite is configured.

How samwang0723/mcp-atlassian configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to samwang0723/mcp-atlassian. 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/samwang0723/mcp-atlassian/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/samwang0723/mcp-atlassian

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/samwang0723/mcp-atlassian/claude-md/github.svg)](https://agentmods.dev/instructions/samwang0723/mcp-atlassian/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/samwang0723/mcp-atlassian/claude-md"><img src="https://agentmods.dev/badge/instructions/samwang0723/mcp-atlassian/claude-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/samwang0723/mcp-atlassian/claude-md"><img src="https://agentmods.dev/badge/instructions/samwang0723/mcp-atlassian/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 783 This file is loaded in full into every session.

When invoked 783 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.

Model	Per session	Once invoked
Fable 5.1	$0.00783	$0.00783
Opus 5.5	$0.00313	$0.00313
Sonnet 5.5	$0.00157	$0.00157
Haiku 4.5	$0.00078	$0.00078

Measured 2mo ago against content hash 95bf677ba51c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-atlassian CLAUDE.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.

CLAUDE.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Development Commands

Building and Development

npm run build - Compile TypeScript to JavaScript in dist/
npm run dev - Run in development mode with ts-node
npm start - Run the production build from dist/

Code Quality

npm run lint - Run ESLint on TypeScript files
npm run format - Format code with Prettier

Testing

No test suite is currently configured (package.json shows placeholder test command)

Architecture Overview

This is an MCP (Model Context Protocol) server that provides integrations with Atlassian tools (Jira and Confluence). The codebase follows a modular service-oriented architecture:

Core Structure

src/index.ts - Main entry point that initializes the MCP server and conditionally registers tools based on configuration
src/services/ - Core API service classes for Jira and Confluence that wrap the underlying client libraries
src/tools/ - Individual MCP tool implementations, each exported as a registration function
src/config/env.ts - Centralized environment configuration with validation
src/utils/tool-filter.ts - Tool filtering logic for read-only mode and selective tool enabling

Key Architecture Patterns

Service Layer

The JiraService and ConfluenceService classes encapsulate API interactions:

JiraService uses ts-jira-client library
ConfluenceService uses confluence.js library
Both support multiple authentication methods (basic auth, OAuth, PAT)
SSL verification is configurable per service

Tool Registration Pattern

Tools are implemented as individual modules that export registration functions:

Each tool registers itself with the MCP server instance
Tool availability is controlled by configuration (enabled tools list, read-only mode)
Tools are categorized as READ_TOOLS or WRITE_TOOLS for access control

Configuration System

Environment-based configuration with:

Support for separate Jira/Confluence URLs or unified Atlassian host
Multiple authentication methods with automatic fallbacks
Tool filtering and read-only mode capabilities
SSL verification controls per service

Read the full file on GitHub · 79 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.

2mo ago First seen · 79 lines · 783 tokens per session scan A 95bf677ba51c

Subscribe to this mod's changes

mcp-atlassian CLAUDE.md is an instructions file published in the GitHub repository samwang0723/mcp-atlassian (6 stars, last pushed 8mo ago), licensed MIT. It adds 783 tokens to every session, about $0.0031 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.

mcp-atlassian CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
mcp-atlassian CLAUDE.mdsamwang0723/mcp-atlassian	Instructions file	6	8mo ago	MIT	A	783	Claude Code
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next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

mcp-atlassian: Instructions file for Claude Code