Package Pricing Lab

com.modernmustardseedPublished by modernmustardseed.comOfficial publisherv1.0.0Updated Oct 24, 2026

Builds fixed-price service packages from costs and capacity, with margin and capacity math.

The publisher's own server: AI Search Kit

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

A remote MCP server that helps an assistant turn a service business's costs and deliverables into fixed-price packages, stress-test their margins and write sc

What you can do
Build three fixed-price packages (smallest, middle, largest) from a cost base and deliverables marked core, common or premium, with margin and capacity math. Stress-test one package against scope creep and a slow month, returning margin and profit per sale at each creep level. Compare hourly or daily billing with fixed packages for the same work. Write plain scope language for one to three packages, including included, adjustment and out-of-scope lines.
When to use it
Useful when a service business wants to move from hourly or daily billing to fixed-price packages, or needs to check whether an existing package still holds up under scope creep and slow months.
Requirements
A remote endpoint reached over streamable HTTP; no packages, environment variables or headers are declared. No authentication is declared.
Before you install
The tools take business cost, pricing and capacity figures; check that such commercial data may be sent to a third-party endpoint. Outputs are planning calculations, not financial advice, and should be reviewed before being used in client contracts.

Installation

In SourceWeft

  1. Open Package Pricing Lab in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.modernmustardseed%2Fpricing-lab/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "package-pricing-lab": {
      "type": "http",
      "url": "https://mcp.modernmustardseed.com/pricing-lab"
    }
  }
}

Tools

4

build_packages

Build three fixed packages

Turn the work a service business does into three fixed-price packages (smallest, middle, largest). Takes the cost base (fixed costs, owner pay, staff, delivery capacity) and the deliverables the business offers, each marked core (every client needs it), common (most clients want it) or premium (some clients want it), with its typical effort and direct cost. Returns each tier with what it includes and leaves out, its cost, break-even price, target price, a recommended price rounded up to a clean number, margin and profit per sale, how far the work can overrun before the margin hits zero, and a capacity check: hours needed, break-even clients a month, and the month profit after owner pay. All results are deterministic arithmetic with the method explained. Adjustments to what was built are treated as included, so effort carries a variance buffer.

Parametersitemsrequiredmix_pctbusinessrequiredoffer_namerequiredtier_namesoutcome_valueclients_per_monthtarget_margin_pctvariance_buffer_pct

stress_test_package

Stress test a package

Show what scope creep and a slow month do to one fixed-price package. Takes the cost base, the package price, its typical effort and direct cost, and optionally sales per month and a cash reserve. Returns margin and profit per sale at each scope creep level (default 10, 25 and 50 percent more effort on the same deliverables), the overrun at which the package earns nothing, the price that holds the target margin at the worst case, and the month view: a normal month, a slow month (default 40 percent fewer sales), a slow month with creep, break-even sales a month, and how many slow months the reserve covers. Deterministic arithmetic with the method explained.

Parameterspackagerequiredbusinessrequiredcash_reservesales_per_monthscope_creep_pcttarget_margin_pctslow_month_drop_pct

compare_models

Compare time-based billing with packages

Compare the economics of how a business charges today, by the hour or by the day, with fixed packages for the same work. Takes the cost base, the current rate and unit, the share of hours worked that reach an invoice, one to three packages with price and typical effort, and jobs per month. The current rate always comes from the user and is never assumed. Returns, at several efficiency gains (default 0, 15 and 30 percent less effort as delivery gets repeatable), revenue and profit per job and per month under each model, earnings per hour worked, revenue ceilings at full capacity, the package price that matches what each job collects today, and plain findings. Deterministic arithmetic with the method explained.

Parameterscurrentrequiredbusinessrequiredpackagesrequiredjobs_per_monthrequiredefficiency_gains_pct

package_scope_language

Write package scope language

Write plain scope language for one to three fixed packages: an included line for each deliverable, an adjustments line (adjustments to anything delivered are included at no added cost), out-of-scope lines (deliverables from larger packages and anything listed as excluded), the rule that a genuinely new deliverable becomes a new package scoped and priced before work starts, worked boundary examples, and a ready-to-paste text block per package. Lines that use time-based or extra-charge wording are left out and named in notes. Written in "we" by default or "I" for a solo business.

Parametersvoicepackagesrequiredascending

Version history

1
  1. v1.0.0LatestOct 11, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.

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