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AAJ Marketing Engines

by sarojkjha · remote · no sign-in to list tools · v1.2.0 · published by GitHub user sarojkjha

Deterministic marketing math for AI agents: LTV:CAC, pipeline coverage, A/B tests, pricing.

Changes · 1
CompareRegistry entry

5 tools: 1 change things and 4 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http aaj-engines https://aaj-engines-mcp.sarojkjha10.workers.dev/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnrun_engine

    The server marks "run_engine" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "run_engine" says "run": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Changes things 1Claude Code: ask
  • run_engineRuns an AAJ engine and returns its verdict.1 finding

    Why it is in this group

    • The name "run_engine" says "run": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "run_engine" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "run_engine" says "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Runs an AAJ engine and returns its verdict. Give `input` as an object of the engine's fields. Omit `input` to run the engine's built-in worked example. Engines are deterministic, offline, and validate their input — a wrong unit is reported as an error, not absorbed into a confident answer.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 4Claude Code: allow
  • describe_engineShows one engine's input schema: required fields, units, alternative shapes, and a worked example.No findings

    Why it is in this group

    • The name "describe_engine" says "describe": a word for reading.
    Description, as the server wrote it
    Shows one engine's input schema: required fields, units, alternative shapes, and a worked example. Engines reject bad input rather than guessing.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_skillReturns the full method for one skill: when to use it, the steps, the quality bar, and how to run its engine if it has one.No findings

    Why it is in this group

    • The name "get_skill" says "get": a word for reading.
    Description, as the server wrote it
    Returns the full method for one skill: when to use it, the steps, the quality bar, and how to run its engine if it has one.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_enginesLists every AAJ marketing engine: its id, the question it answers, and its category.No findings

    Why it is in this group

    • The name "list_engines" says "list": a word for reading.
    Description, as the server wrote it
    Lists every AAJ marketing engine: its id, the question it answers, and its category. Engines cover unit economics, pipeline forecast, budget allocation, retention, A/B significance, SEO/GEO scoring, ad spend and pricing.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_skillsFinds AAJ marketing skills by the problem they solve — 'churn is rising', 'we're launching next month', 'not showing up in AI answers'.No findings

    Why it is in this group

    • The name "search_skills" says "search": a word for reading.
    Description, as the server wrote it
    Finds AAJ marketing skills by the problem they solve — 'churn is rising', 'we're launching next month', 'not showing up in AI answers'. Returns matching methods and marks which have a runnable engine.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http aaj-engines https://aaj-engines-mcp.sarojkjha10.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__aaj-engines__list_engines",
      "mcp__aaj-engines__describe_engine",
      "mcp__aaj-engines__search_skills",
      "mcp__aaj-engines__get_skill"
    ],
    "ask": [
      "mcp__aaj-engines__run_engine"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as aaj-engines. Review it before you use it.