MCP Server Policy

PHOENIX MCP POLICY

Enforce policies on every tool call to the Phoenix MCP Server. 19 tools listed, categorised, and ready for rules.

Arize-ai/phoenix 16 read 3 write 19 tools total
ai-observability llm-tracing evaluation prompt-management

GET STARTED

Download this policy scaffold and add your rules. Intercept enforces them on every tool call before it reaches Phoenix.

terminal

# Download policy scaffold

curl -o phoenix.yaml https://raw.githubusercontent.com/policylayer/intercept/main/policies/phoenix.yaml

# Run with Intercept

intercept --policy phoenix.yaml -- npx -y @Arize-ai/phoenix

Server documentation: https://phoenix.arize.com

READ TOOLS

16

WRITE TOOLS

3

POLICY YAML

This scaffold lists every tool with empty rules. Add conditions — rate limits, argument validation, deny rules — then deploy with Intercept.

phoenix.yaml 
version: "1"
description: "Policy for Arize-ai/phoenix"
default: "allow"
tools:
    list-projects:
        rules: []
    list-datasets:
        rules: []
    get-dataset-examples:
        rules: []
    get-dataset-experiments:
        rules: []
    list-experiments-for-dataset:
        rules: []
    get-experiment-by-id:
        rules: []
    list-prompts:
        rules: []
    get-latest-prompt:
        rules: []
    get-prompt-by-identifier:
        rules: []
    get-prompt-version:
        rules: []
    list-prompt-versions:
        rules: []
    get-prompt-version-by-tag:
        rules: []
    list-prompt-version-tags:
        rules: []
    get-spans:
        rules: []
    get-span-annotations:
        rules: []
    phoenix-support:
        rules: []
    add-dataset-examples:
        rules: []
    upsert-prompt:
        rules: []
    add-prompt-version-tag:
        rules: []

FREQUENTLY ASKED QUESTIONS

What tools does the Phoenix MCP server expose?

The Phoenix MCP Server exposes 19 tools across 2 categories: Read, Write. Each tool can be individually controlled with Intercept policies.

How do I enforce policies on Phoenix?

Download the policy scaffold, add rules (rate limits, argument validation, deny rules), then run Intercept as a proxy in front of the Phoenix MCP server. Every tool call is evaluated against your YAML policy before execution.

Is the Phoenix policy free to use?

Yes. All Intercept policies are open source under the Apache 2.0 licence. Download, modify, and deploy without restrictions.

ENFORCE POLICIES ON PHOENIX

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Browse all policies →