# Dry Run (remote · mcp.modernmustardseed.com)

Monte Carlo cash-flow simulator for a small services business: odds of running short, and why.

- Trust score: 74/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-22

## Components

- remote · `mcp.modernmustardseed.com`: 74/100 (this document), [markdown](https://verifymcp.io/servers/com-modernmustardseed-dry-run/dry-run.md), [page](https://verifymcp.io/servers/com-modernmustardseed-dry-run/dry-run)

## Channel facts

- Endpoint: `https://mcp.modernmustardseed.com/dry-run`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-22.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 54/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1691 tokens (~563/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the Dry Run MCP server?

Dry Run is a hosted endpoint at https://mcp.modernmustardseed.com/dry-run, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-modernmustardseed-dry-run 'https://mcp.modernmustardseed.com/dry-run'
```

### Cursor

```json
{
  "mcpServers": {
    "com-modernmustardseed-dry-run": {
      "url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-modernmustardseed-dry-run": {
      "type": "http",
      "url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-modernmustardseed-dry-run]
url = "https://mcp.modernmustardseed.com/dry-run"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-modernmustardseed-dry-run": {
      "type": "remote",
      "url": "https://mcp.modernmustardseed.com/dry-run",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-modernmustardseed-dry-run --url 'https://mcp.modernmustardseed.com/dry-run' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-modernmustardseed-dry-run:
    url: "https://mcp.modernmustardseed.com/dry-run"
```

### Netclaw

```json
{
  "McpServers": {
    "com-modernmustardseed-dry-run": {
      "Transport": "http",
      "Url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-modernmustardseed-dry-run -t streamable-http -u 'https://mcp.modernmustardseed.com/dry-run'
```

### Other

```json
{
  "mcpServers": {
    "com-modernmustardseed-dry-run": {
      "type": "http",
      "url": "https://mcp.modernmustardseed.com/dry-run"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-20 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-18 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-16 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-14 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 70, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-12 (score 70)

First indexed and scored.

## MCP tools (3)

### `simulate_cash_year` (~786 tokens)

Simulate a cash year

Simulate the next 52 weeks of a small services business 10,000 times (Monte Carlo) and report the chance it runs short of money, the week that is most likely to happen, reachable money (bank balance plus unused credit) week by week at the 10th, 50th and 90th percentile, the drivers that separated the futures that ran short from the ones that survived, and the profit the business makes at its own averages. Start from a trade preset (excavation, plumbing, hvac, landscaping, roofing, or general) and override any input: cash, credit line, money owed to the business, work already sold, crews and their weekly cost, overhead, owner draw, monthly bills, enquiries, close rate, seasonality, job types with value, materials, deposit and payment terms, bad debt, tax, and random setbacks. Money is in dollars and rates are fractions (0.3 is 30 percent). The same inputs and seed always return the same answer. Pure arithmetic: no network access, nothing stored.

Input parameters:

- `bad_debt_rate` (number): Share of invoiced balances never collected, as a fraction.
- `close_rate` (number): Share of enquiries that become jobs, as a fraction.
- `collection_shape` (number): How disciplined customers are about paying on time: 2 is ragged with a long tail of late payers, 6 is disciplined.
- `credit_apr` (number): Annual interest on the drawn balance, as a fraction. 0.11 is 11 percent.
- `credit_drawn` (number): How much of the line is already drawn, in dollars.
- `credit_line` (number): Size of the line of credit, in dollars. 0 for none.
- `crew_cost_weekly` (number): Fully loaded weekly cost of one crew: wages, burden, fuel, vehicle.
- `crews` (integer): Crews (or technicians, or production units) working in parallel. One crew delivers one crew-week a week.
- `fixed_costs` (array): Monthly fixed bills such as rent, insurance and equipment notes. Replaces the preset list.
- `job_types` (array): The kinds of work sold. Replaces the preset list.
- `leads_cv` (number): Week to week spread of enquiries. Default 0.35.
- `leads_per_week` (number): Enquiries in an average week before seasonality.
- `name` (string): Business name, used only to label the result.
- `opening_backlog_weeks` (number): Crew-weeks of work already sold and waiting to start.
- `opening_receivables` (number): Work already invoiced and not yet paid on day one, in dollars.
- `overhead_weekly` (number): Weekly overhead that runs whether or not anyone works: office, software, admin wages.
- `owner_draw_weekly` (number): What the owner takes out each week.
- `preset` (string): Starting template: excavation, plumbing, hvac, landscaping, roofing, or general for any other small services business. Every field below overrides it. Default general.
- `seasonality` (array): Twelve multipliers on enquiry volume, January first. 1 is an average month.
- `seed` (string): Seed for the random draws. The same inputs and seed always return the same answer. Default "dry-run".
- `start_cash` (number): Money in the bank on the day the year starts, in dollars.
- `start_month` (integer): Month the simulated year starts, 1 for January. Default: the current month.
- `surprises` (array): Random setbacks such as a machine breakdown or someone quitting. Replaces the preset list.
- `tax_rate` (number): Share of profit set aside for tax, paid quarterly.

### `rank_levers` (~735 tokens)

Rank levers

Test nine single changes a small business owner can make and rank them by how much each lowers the chance of running short of money in the next 52 weeks, with the change in year-end money as a tiebreak. The levers: take a third up front, take 15 days off payment terms, raise prices 5 percent, take a fifth less owner draw for six months, cut overhead 10 percent, raise the credit line by half, run one crew lighter, add a crew, and buy three more enquiries a week. Each lever and the baseline run 3,000 simulated years with the same seed, so the difference is the lever and not the luck. Takes the same business description as a cash year simulation: a preset plus any overridden inputs. Pure arithmetic: no network access, nothing stored.

Input parameters:

- `bad_debt_rate` (number): Share of invoiced balances never collected, as a fraction.
- `close_rate` (number): Share of enquiries that become jobs, as a fraction.
- `collection_shape` (number): How disciplined customers are about paying on time: 2 is ragged with a long tail of late payers, 6 is disciplined.
- `credit_apr` (number): Annual interest on the drawn balance, as a fraction. 0.11 is 11 percent.
- `credit_drawn` (number): How much of the line is already drawn, in dollars.
- `credit_line` (number): Size of the line of credit, in dollars. 0 for none.
- `crew_cost_weekly` (number): Fully loaded weekly cost of one crew: wages, burden, fuel, vehicle.
- `crews` (integer): Crews (or technicians, or production units) working in parallel. One crew delivers one crew-week a week.
- `fixed_costs` (array): Monthly fixed bills such as rent, insurance and equipment notes. Replaces the preset list.
- `job_types` (array): The kinds of work sold. Replaces the preset list.
- `leads_cv` (number): Week to week spread of enquiries. Default 0.35.
- `leads_per_week` (number): Enquiries in an average week before seasonality.
- `name` (string): Business name, used only to label the result.
- `opening_backlog_weeks` (number): Crew-weeks of work already sold and waiting to start.
- `opening_receivables` (number): Work already invoiced and not yet paid on day one, in dollars.
- `overhead_weekly` (number): Weekly overhead that runs whether or not anyone works: office, software, admin wages.
- `owner_draw_weekly` (number): What the owner takes out each week.
- `preset` (string): Starting template: excavation, plumbing, hvac, landscaping, roofing, or general for any other small services business. Every field below overrides it. Default general.
- `seasonality` (array): Twelve multipliers on enquiry volume, January first. 1 is an average month.
- `seed` (string): Seed for the random draws. The same inputs and seed always return the same answer. Default "dry-run".
- `start_cash` (number): Money in the bank on the day the year starts, in dollars.
- `start_month` (integer): Month the simulated year starts, 1 for January. Default: the current month.
- `surprises` (array): Random setbacks such as a machine breakdown or someone quitting. Replaces the preset list.
- `tax_rate` (number): Share of profit set aside for tax, paid quarterly.

### `list_presets` (~78 tokens)

List presets

List the six built-in business presets (excavation and septic, plumbing and drain, heating and cooling, landscaping and snow, roofing, and a general small services business) with every default input in the exact field names a simulation accepts, and the revenue, costs and profit each makes at its own averages. Static reference: no network access.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-modernmustardseed-dry-run/dry-run#diagnostics

## Score history

- 2026-10-22: 74
- 2026-10-21: 74
- 2026-10-20: 74
- 2026-10-19: 73
- 2026-10-18: 73
- 2026-10-17: 72
- 2026-10-16: 72
- 2026-10-15: 71
- 2026-10-14: 71
- 2026-10-13: 70
- 2026-10-12: 70

## Common questions

### What is the Dry Run MCP server?

Dry Run is an MCP server listed in the public MCP registry as com.modernmustardseed/dry-run. Monte Carlo cash-flow simulator for a small services business: odds of running short, and why. This page covers its hosted endpoint (https://mcp.modernmustardseed.com/dry-run).

### Is the Dry Run MCP server safe to use?

Dry Run scores 74 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Dry Run MCP server expose?

Dry Run exposes 3 tools: simulate_cash_year, rank_levers, list_presets. Their descriptions and schemas cost roughly 1,599 tokens of context every time the server is loaded.

### Does the Dry Run MCP server require authentication?

No. We connected to Dry Run without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Dry Run MCP server still maintained?

Dry Run is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.modernmustardseed.com/dry-run
- Website: https://mcp.modernmustardseed.com/docs/dry-run
- Changelog RSS feed: https://verifymcp.io/servers/com-modernmustardseed-dry-run/dry-run.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-modernmustardseed-dry-run/dry-run.json
- HTML version of this page: https://verifymcp.io/servers/com-modernmustardseed-dry-run/dry-run