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LeaseBreak

by everyai-com · remote · no sign-in to list tools · v1.0.0 · published by GitHub user everyai-com

Estimate early lease termination costs, compare options and draft notice letters. Free.

Changes · 3
CompareRegistry entry

4 tools: 3 change things and 1 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http lease-break https://lease-break.magicteams.ai/mcp

Tools

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

4 tools

Changes things 3Claude Code: ask
  • estimate_break_costCompute an itemised estimate of ending a lease early: notice-period rent, break fee, re-letting fee, rent until re-let, deposit credit and net cost vs staying.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Compute an itemised estimate of ending a lease early: notice-period rent, break fee, re-letting fee, rent until re-let, deposit credit and net cost vs staying. Use when the user asks what breaking their lease will cost. Do NOT use to weigh breaking vs subletting vs staying - use compare_options.

    Annotations the server declares

    • title: Estimate break cost
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • negotiation_checklistBuild a checklist and step order for negotiating an early lease exit with the landlord, tailored to the break fee, months remaining, mitigation duty and local re-let demand.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Build a checklist and step order for negotiating an early lease exit with the landlord, tailored to the break fee, months remaining, mitigation duty and local re-let demand. Use when the user wants to negotiate the fee down or plan the conversation. Do NOT use to compute costs - use estimate_break_cost.

    Annotations the server declares

    • title: Negotiation checklist
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • notice_letterDraft a formal early-termination notice letter (text only - nothing is sent) with property, lease date, notice period, move-out date, fee and deposit lines, plus a subject and deli…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Draft a formal early-termination notice letter (text only - nothing is sent) with property, lease date, notice period, move-out date, fee and deposit lines, plus a subject and delivery tips. Use once the user has decided to leave early. Do NOT use to estimate costs - use estimate_break_cost.

    Annotations the server declares

    • title: Notice letter
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 1Claude Code: allow
  • compare_optionsCompare the net cost of breaking the lease vs subletting vs staying to term, ranked cheapest first with notes, risks and assumptions.Reads private dataNo findings

    Why it is in this group

    • The name "compare_options" says "compare": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "compare" and "note": it reads notes.
    Description, as the server wrote it
    Compare the net cost of breaking the lease vs subletting vs staying to term, ranked cheapest first with notes, risks and assumptions. Use when the user is deciding how to leave a lease. Do NOT use for the itemised break-cost breakdown alone - use estimate_break_cost.

    Annotations the server declares

    • title: Compare options
    • 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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged untrusted-input or outbound.

Reads private data1
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http lease-break https://lease-break.magicteams.ai/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__lease-break__compare_options"
    ],
    "ask": [
      "mcp__lease-break__estimate_break_cost",
      "mcp__lease-break__notice_letter",
      "mcp__lease-break__negotiation_checklist"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as lease-break. Review it before you use it.

Capability tags behind 1 rule
  • mcp__lease-break__compare_options private-data