Borrowing it
Nothing to install: this file belongs to alejandroviera/zephyr-squad-server-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.
curl -O https://raw.githubusercontent.com/alejandroviera/zephyr-squad-server-mcp/master/CLAUDE.mdgit clone --depth 1 https://github.com/alejandroviera/zephyr-squad-server-mcpWrote 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.
[](https://agentmods.dev/instructions/alejandroviera/zephyr-squad-server-mcp/claude-md)<a href="https://agentmods.dev/instructions/alejandroviera/zephyr-squad-server-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/alejandroviera/zephyr-squad-server-mcp/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.
<a href="https://agentmods.dev/instructions/alejandroviera/zephyr-squad-server-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/alejandroviera/zephyr-squad-server-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.02167 | $0.02167 |
| Opus 5 | $0.01084 | $0.01084 |
| Sonnet 5 | $0.00433 | $0.00433 |
| Haiku 4.5 | $0.00217 | $0.00217 |
Grade A, and why
zephyr-squad-server-mcp 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 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.
How it starts
The opening of the file, as written. The whole thing — 152 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.
What this is
An MCP server exposing Zephyr for Jira Server / Data Center (ZAPI,
/rest/zapi/latest) test-management operations as tools an AI agent can call.
Server/DC only — Zephyr Squad Cloud is a different, JWT-signed API and is
intentionally out of scope (see docs/next-steps.md). 39 tools across 6 resource
modules + a helpers module.
Commands
uv sync # install (editable) + dev deps
uv run ruff check # lint (must pass)
uv run ruff check --fix # autofix
uv run pytest # full suite (respx mocks all HTTP — no live Jira)
uv run pytest tests/test_tools.py::test_update_cycle # single test
uv run zephyr-squad-server-mcp # run the server over stdio (needs JIRA_* env)
uv run mcp dev src/zephyr_squad_server_mcp/server.py # MCP Inspector (no env needed)
uv run ruff check and uv run pytest must both be green before considering a
change done. Ruff config: line-length = 100, rules E,F,I,UP,B (in
pyproject.toml). Requires Python ≥ 3.10.
Configuration is env-based (.env honored; see .env.example): JIRA_URL
is required, plus auth — JIRA_PERSONAL_TOKEN (preferred) or JIRA_USERNAME +
JIRA_PASSWORD. Config validation is fail-fast (config.py:ConfigError).
Architecture
The whole server is a thin, synchronous translation layer over two Jira REST surfaces. Three pieces carry the design — read them before adding tools:
client.py—ZephyrClient._request(method, path, *, params=None, json=None, api="zapi"). The single HTTP chokepoint.api="zapi"(default) hits/rest/zapi/latest;api="core"hits Jira core/rest/api/2. Key behaviors tools rely on:paramsentries whose value isNoneare dropped automatically — this is how optional query args are modeled (passNone, not a sentinel). Pass""(or a coerced string) when an endpoint marks a param "required" but you want a literal empty/explicit value.- Returns parsed JSON, or
Noneon an empty body. RaisesZephyrError(carrying status + best-effort body) on any non-2xx. _requestis JSON-only (json=). It cannot do multipart uploads or binary downloads — a known limitation that blocks attachments and file download until a client extension is added (seedocs/next-steps.mdBatch 4).
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.
- 10d ago First seen · 152 lines · 2,167 tokens per session scan A e1ab450698f3
zephyr-squad-server-mcp CLAUDE.md is an instructions file published in the GitHub repository alejandroviera/zephyr-squad-server-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 2,167 tokens to every session, about $0.0108 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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