How does this MCP prevent underestimation?

It uses structured techniques like scope decomposition and Reference Class Forecasting to force you to account for the complexities that humans naturally overlook.

What happens if my estimate is rejected?

The MCP will issue a verdict identifying exactly why the estimate failed, such as a missing buffer or vague scope, so you can fix it.

What is a realistic buffer according to this capability?

The capability requires a minimum 20% buffer for familiar work and at least 40% for novel tasks with significant unknowns.

Can I use this with Claude or Cursor?

Yes, you can use this MCP with any MCP-compatible client including Claude, Cursor, and Windsurf.

What is the Planning Fallacy?

It is a cognitive bias where humans systematically underestimate the time required to complete a task, often by 25% to 50%.

How does Estimation Prover validate an estimate?

It analyzes the inputs based on a 5-pivot validation. You provide the task decomposition, risk mapping, historical context, buffer metrics, and assumptions. It rejects single-line guesses or projects without buffers.

What is the recommended buffer size?

The capability enforces a minimum 20% buffer on projects with clear precedents, and increases to 40% or more for complex integrations, new frameworks, or systems with high architectural risk.

How does Reference Class Forecasting work here?

It forces you to compare the new project with similar work completed in the past. If your past authentication integration took 3 weeks instead of the planned 1 week, you must adjust the new estimate's baseline accordingly.

An astronaut overseeing a futuristic data hub

Download PDF Markdown Version

Connect Estimation Prover to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. It stops the planning fallacy before you commit to a deadline.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through Estimation Prover.

01
Validate estimation
This capability validates your project timeline by checking for scope decomposition, identified unknowns, historical precedents, contingency buffers, and explicit assumptions.

Real work

What teams actually run

Sprint Planning

Validate that your team's sprint commitments are based on decomposed tasks rather than gut feelings.

Roadmap Creation

Ensure long-term project timelines include realistic buffers for novel architectural work.

Client Proposals

Build defensible project estimates by citing historical precedents and documented assumptions.

Risk Assessment

Identify and quantify technical unknowns like API reliability or library deprecations during the planning phase.

Automate a task

Put Estimation Prover to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Estimation Prover works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Estimation Prover to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

859ms average. Fast in production.

Estimation Prover is checked daily against the live service.

Daily averagePeak 1118ms

Oct 3Today

Fastest day: 659ms
Slowest day: 1118ms
14-day trend: Slowing+23%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Estimation Prover, so you can see the experience inside your AI.

It does not authenticate your account with Estimation Prover. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Estimation Prover Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_2EBBLjpOgvh99Mzj4qWjg1AX3u4JVxsWEXt8l5U8/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Estimation Prover capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "estimation-prover-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_2EBBLjpOgvh99Mzj4qWjg1AX3u4JVxsWEXt8l5U8/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Estimation Prover in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Estimation Prover owners hand off.

Engineering leaders and developers who need to provide reliable delivery dates to stakeholders.

01
Engineering Managers
Use it to vet estimates provided by their teams before committing to roadmaps.
02
Software Engineers
Use it to build more accurate, defensible timelines for their own tasks.
03
Technical Product Managers
Use it to understand the real complexity behind requested features.

FAQ

Questions Estimation Prover owners ask.

01
How does this MCP prevent underestimation?
It uses structured techniques like scope decomposition and Reference Class Forecasting to force you to account for the complexities that humans naturally overlook.
02
What happens if my estimate is rejected?
The MCP will issue a verdict identifying exactly why the estimate failed, such as a missing buffer or vague scope, so you can fix it.
03
What is a realistic buffer according to this capability?
The capability requires a minimum 20% buffer for familiar work and at least 40% for novel tasks with significant unknowns.
04
Can I use this with Claude or Cursor?
Yes, you can use this MCP with any MCP-compatible client including Claude, Cursor, and Windsurf.
05
What is the Planning Fallacy?
It is a cognitive bias where humans systematically underestimate the time required to complete a task, often by 25% to 50%.
06
How does Estimation Prover validate an estimate?
It analyzes the inputs based on a 5-pivot validation. You provide the task decomposition, risk mapping, historical context, buffer metrics, and assumptions. It rejects single-line guesses or projects without buffers.
07
What is the recommended buffer size?
The capability enforces a minimum 20% buffer on projects with clear precedents, and increases to 40% or more for complex integrations, new frameworks, or systems with high architectural risk.
08
How does Reference Class Forecasting work here?
It forces you to compare the new project with similar work completed in the past. If your past authentication integration took 3 weeks instead of the planned 1 week, you must adjust the new estimate's baseline accordingly.

Explore

More in Productivity

Connect Estimation Prover to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01

Validate estimation

What teams actually run

Sprint Planning

Roadmap Creation

Client Proposals

Risk Assessment

Building your own app? The connector is yours to use.

Estimation Prover Connector

Claude Desktop

Engineering Managers

Software Engineers

Technical Product Managers

How does this MCP prevent underestimation?

What happens if my estimate is rejected?

What is a realistic buffer according to this capability?

Can I use this with Claude or Cursor?

What is the Planning Fallacy?

How does Estimation Prover validate an estimate?

What is the recommended buffer size?

How does Reference Class Forecasting work here?

Requirement Decomposition Prover AI Connector

Agent Task Decomposition Engine AI Connector

Family History Archive Plan AI Connector

Multi-Agent Orchestrator Prover AI Connector

Suggestions

Estimate Scope Reconciliation AI Connector

Flight Risk Assessment Prover AI Connector

Repair Contingency Response Plan AI Connector

Venture Risk-Adjusted Return Engine AI Connector