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Phocinae MCP server

by Phocinae·io.github.Phocinae/phocinae-mcp·v0.2.6

Local Phocinae decision-engine MCP stdio server: fail-closed approval gate + classify/route/score.

A91/100grade A
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Safety scan
A91/100

full report

Adoption
Growing

0 stars537 downloads/wk

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Phocinae MCP tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.10 · 2026-10-12 · same rubric, same numbers if you re-run it

no findings
  • Code scan11 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner7/10
Overall 91/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Phocinae MCP compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
91/100
higher than 85% of 48,255 servers
Downloads a week
537
more than 89% of 12,191 servers with a package

Install Phocinae MCP in Claude Code, Cursor or VS Code

claude mcp add phocinae-mcp -- uvx phocinae-mcp
Add to Cursor

What the publisher says

From the Phocinae MCP repository's README, as published. We do not edit it. Read it on GitHub

<!-- mcp-name: io.github.Phocinae/phocinae-mcp -->

phocinae-mcp

把斑海豹的命令审批门与 P0 推理协议暴露为 MCP 工具(gate / classify / route / score),接入只读 MCP 的编码代理。双代协议并存:现代面(2026-07-28,含 server/discover、MRTR 交互、Streamable HTTP)与 2024-11-05 旧客户端兼容。

▲ tools/list 的真实应答:四个工具的参数与返回形状

斑海豹生态的 MCP server:把斑海豹的命令审批与推理能力以 4 个工具暴露给 MCP 客户端。纯标准库(Python ≥ 3.8,零第三方依赖),支持 stdio 与 Streamable HTTP 两种传输,MCP 2026-07-28 对齐并兼容 2024-11-05 旧客户端。

本仓库为本地增强版(基于 PyPI phocinae-mcp 0.1.1),仅用于本地开发与

协议对齐验证,不发布。

工具

▲ 合成演示动画(模型仓 docs/gallery S07):画面为逐帧渲染、场景数据虚构,但它演示的 route 工具「一次前向在候选工具里选出该用的那个」的判定过程 与真实实现一致(本页上方的终端截图即真实运行的同一流程)。

fail-closed:斑海豹 P0 服务(/v1/systemone)不可用、超时、应答异常时, gate 一律返回 deny(带原因),classify/route/score 返回 isError: true。

传输方式

stdio(默认)

python3 -m phocinae_mcp --server http://127.0.0.1:8155

MCP 客户端以子进程方式拉起,走 stdin/stdout 逐行 JSON-RPC 帧。 stdout 纯净性保证:stdout 只输出 JSON-RPC 帧;一切日志(启动、告警、 工具内部异常)只走 stderr(phocinae-mcp[level]: 前缀)。guard.py 导入期 的打印也被重定向到 stderr,不会污染协议通道。

Streamable HTTP(新增,2026-07-28)

python3 -m phocinae_mcp --transport http --host 127.0.0.1 --port 8255
# --port 0 → 随机端口(测试用);端口号打印在 stderr

其他地址直接拒绝启动(exit 2);

  • 仅回环绑定:--host 只接受 127.0.0.1 / localhost / ::1,

单对象 JSON;

  • 端点 POST /mcp;通知 → 202 Accepted(空 body);请求 → 200

支持(否则 400 + -32020/-32022)、Mcp-Method 必带且等于 body 的 method(tools/call、resources/read 还必带 Mcp-Name 等于 name/uri),违者 400 -32020;Accept 未含 application/json / text/event-stream → 406;未知方法 → 404 -32601;GET/DELETE → 405(2026-07-28 已移除 GET 流与会话终结端点);

  • 请求头强制(Server Validation):MCP-Protocol-Version 必带且须受
  • 无会话头(Mcp-Session-Id)、无 SSE 恢复缓冲——无状态服务,可任意重启。

环境变量:PHOCINAEMCPTRANSPORT=stdio|http、PHOCINAEMCPHTTP_PORT 可替代命令行开关。

协议对齐(2026-07-28)

双代并存,按请求逐条分派:

server/discover、resources/ → 现代面**;

  • 带 params.meta(含 io.modelcontextprotocol/ 键)的请求、以及

与原版 0.1.x 一致)。

  • initialize 握手、无 meta 的请求 → 旧年代**(2024-11-05 行为,

现代面补足项:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Phocinae MCP: common questions

Is Phocinae MCP server safe?
Yes, by our scan: it is graded A (91/100). Read the Phocinae MCP safety report
How do I install Phocinae MCP?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Phocinae MCP need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Phocinae MCP maintained?
The last commit was 23 days ago (2026-10-12). The latest release is v0.2.6.
How does Phocinae MCP compare with other MCP servers?
safety score 91/100 (higher than 85% of 48,255 servers); downloads a week 537 (more than 89% of 12,191 servers with a package). Full comparison.