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harrykeen18

Validate

by harrykeen18
OverviewSchemaRelated ServersScoreDiscussions
TypeScript
Hybrid

What it does

Building the wrong thing is a direct route to startup failure. Validate helps you avoid that by structuring the messy process of customer discovery into a repeatable workflow:

  1. Define testable hypotheses: break your idea into specific assumptions

  2. Find the right people: build ideal customer profiles, source contacts

  3. Run discovery calls: AI-generated call guides following Mom Test principles

  4. Capture insights: structured debrief, transcript analysis, bias detection

  5. Synthesize and decide: cross-call pattern analysis, pivot signals, validation scorecards

It runs as an MCP server, so it works inside Claude Desktop, Claude Code, or any MCP-compatible client.

Related MCP server: callout-dev

Architecture

Layer

Tech

Protocol

Model Context Protocol (stdio + SSE transport)

Runtime

Node.js / TypeScript

Database

SQLite via Drizzle ORM (WAL mode, auto-creates tables)

AI

Claude API for coaching, transcript analysis, and synthesis

Packaging

.mcpb bundle for one-click install

Deployment

Local (stdio) or remote (Fly.io via SSE)

Installation

One-click install (recommended)

Download the latest validator.mcpb from Releases, then double-click or drag it into Claude Desktop.

Manual setup

git clone https://github.com/harrykeen/validator.git && cd validator
npm install && npm run build

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "validator": {
      "command": "node",
      "args": ["/path/to/validator/dist/server.js"],
      "env": {
        "ANTHROPIC_API_KEY": "sk-...",
        "DB_MODE": "sqlite",
        "DB_PATH": "~/.validator/data.db"
      }
    }
  }
}

Tools

Project & Hypothesis Management

Tool

Description

validate_idea

Start validating a new idea — welcome message and coaching questions

create_project

Create a project record after the initial discussion

list_projects

List all validation projects

get_project_status

Full project overview with hypotheses, progress, and metrics

create_hypothesis

Add a testable hypothesis with acceptance criteria

update_hypothesis

Update status or confidence score

list_hypotheses

List hypotheses with confidence scores

prioritize_hypotheses

AI-ranked by importance and testability

Customer Identification

Tool

Description

create_icp

Define an ideal customer profile

suggest_channels

AI suggests where to find your target customers

add_contact

Add a potential interviewee

list_contacts

List contacts with outreach status

update_contact_status

Track progress through the pipeline

search_linkedin

LinkedIn search queries for your ICP

get_linkedin_profile

Fetch LinkedIn profile details

Outreach

Tool

Description

generate_outreach

AI-generated personalised outreach (no pitch, short, specific)

list_outreach

View all messages with status

update_outreach_status

Track sends and responses

get_outreach_stats

Response rates by channel

suggest_outreach_variant

AI A/B variant generation

Conversation Coaching

Tool

Description

generate_call_guide

AI discussion guide following Mom Test principles

get_call_principles

Mom Test principles reference

start_debrief

Structured post-call debrief

record_insight

Capture insights tagged to hypotheses

analyze_transcript

AI transcript analysis with bias detection

Synthesis & Decision

Tool

Description

synthesize_insights

Cross-call pattern analysis

get_validation_scorecard

Hypothesis evidence summary

suggest_next_steps

AI-recommended next actions

detect_pivot_signals

Pivot indicator analysis

get_progress_report

Metrics dashboard

Prompts

Prompt

Description

start-validation

Kick off idea validation

prep-for-call

Pre-call coaching

debrief-call

Post-call insight extraction

weekly-review

Weekly synthesis and planning

pivot-or-persevere

Direction decision analysis

Development

npm install          # install dependencies
npm run build        # compile TypeScript
npm run dev          # watch mode
npm run lint         # check linting
npm run format       # auto-fix formatting
npm run test         # run test suite
npm run bundle       # build .mcpb package

Environment variables

Variable

Description

Default

ANTHROPIC_API_KEY

Claude API key (required for AI features)

—

DB_MODE

sqlite or postgres

sqlite

DB_PATH

SQLite database path

./validator.db

DATABASE_URL

PostgreSQL connection string

—

TRANSPORT

stdio or sse

stdio

PORT

Port for SSE transport

3000

Deployment

Validate can run remotely on Fly.io using SSE transport:

fly launch
fly secrets set ANTHROPIC_API_KEY=sk-...
fly volumes create validator_data --size 1
fly deploy

See Dockerfile and fly.toml for the production configuration.

License

MIT

This server cannot be installed

A
license - permissive license
-
quality - not tested
C
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
0dRelease cycle
2Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

Latest Blog Posts

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