# io.github.inity13/scenariosim-mcp (npm · scenariosim-mcp)

Deterministic what-if & scenario simulation for AI agents: projections, sensitivity & break-even.

- Trust score: 67/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-20

## Components

- remote · `scenariosim-mcp.pages.dev`: 66/100, [markdown](https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp.md), [page](https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp)
- npm · `scenariosim-mcp`: 67/100 (this document), [markdown](https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp-2.md), [page](https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp-2)

## Channel facts

- Registry: `npm`
- Package: `scenariosim-mcp`
- Version: `1.0.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-08-20.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 0 of 1 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 8 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 58/100
  - AI-judged instruction clarity (fair).
  - Context-footprint check failed: tool/resource definitions use about 746 tokens (~124/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 78/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 33% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add inity13-scenariosim-mcp -- npx -y scenariosim-mcp
```

### Codex

```bash
codex mcp add inity13-scenariosim-mcp -- npx -y scenariosim-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "inity13-scenariosim-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "scenariosim-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add inity13-scenariosim-mcp --command npx --arg -y --arg scenariosim-mcp
```

### Hermes

```yaml
mcp_servers:
  inity13-scenariosim-mcp:
    command: "npx"
    args: ["-y", "scenariosim-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "inity13-scenariosim-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "scenariosim-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-08-20 (score 67, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-12 (score 63)

First indexed and scored.

## MCP tools (6)

### `run_scenario` (~198 tokens)

Main simulation tool. Deterministic what-if projection from a template or a free-form 'metrics' model. Returns projections, key_results, assumptions_used, methodology, notes, and a plain-language explanation. 100% deterministic.

Input parameters:

- `horizon` (integer): Periods to project (1..1200).
- `inputs` (object): Scenario assumptions {name:value}; valid keys depend on the template (see list_templates). Unknown keys are ignored. May also be passed at top level.
- `metrics` (array): Custom model: [{name, start, growth_rate?, mode:'compound'|'linear'}].
- `period_label` (string)
- `template` (string): Template id: saas_growth, pricing_change, churn_impact, cost_reduction, hiring_plan, cash_runway, unit_economics, marketing_funnel, compound_growth. Omit or 'custom' for a free-form 'metrics' model.

### `sensitivity_analysis` (~222 tokens)

Vary one or more inputs and show the impact on a target output metric (one-at-a-time). Returns per-variable sweeps, elasticity estimates, output ranges, and the most influential inputs.

Input parameters:

- `horizon` (integer): Periods to project (1..1200).
- `inputs` (object): Scenario assumptions {name:value}; valid keys depend on the template (see list_templates). Unknown keys are ignored. May also be passed at top level.
- `max` (number)
- `min` (number)
- `period_label` (string)
- `steps` (integer)
- `target_metric` (string)
- `template` (string, required): Template id: saas_growth, pricing_change, churn_impact, cost_reduction, hiring_plan, cash_runway, unit_economics, marketing_funnel, compound_growth. Omit or 'custom' for a free-form 'metrics' model.
- `values` (array)
- `variable` (string)
- `variables` (array)
- `variation` (number)

### `break_even` (~192 tokens)

Solve for the input value required to make an output metric reach a target value (bisection). Returns the required input, change from baseline, achieved metric, and residual.

Input parameters:

- `bounds` (array)
- `horizon` (integer): Periods to project (1..1200).
- `inputs` (object): Scenario assumptions {name:value}; valid keys depend on the template (see list_templates). Unknown keys are ignored. May also be passed at top level.
- `period_label` (string)
- `solve_for` (string, required)
- `target_metric` (string)
- `target_value` (number, required)
- `template` (string, required): Template id: saas_growth, pricing_change, churn_impact, cost_reduction, hiring_plan, cash_runway, unit_economics, marketing_funnel, compound_growth. Omit or 'custom' for a free-form 'metrics' model.

### `compare_scenarios` (~87 tokens)

Run 2-3 scenarios and compare their key_results side by side with deltas vs the first (baseline). Optionally rank on 'compare_metric' with 'goal' (max|min).

Input parameters:

- `compare_metric` (string)
- `goal` (string)
- `horizon` (integer)
- `include_projections` (boolean)
- `scenarios` (array, required)

### `list_templates` (~31 tokens)

List all pre-built scenario templates (inputs, defaults, outputs) plus the custom-scenario format and period labels.

### `health_check` (~16 tokens)

Server health, version, and capabilities.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp-2#diagnostics

## Score history

- 2026-08-20: 67
- 2026-08-19: 63
- 2026-08-18: 63
- 2026-08-17: 63
- 2026-08-16: 63
- 2026-08-15: 63
- 2026-08-14: 63
- 2026-08-13: 63
- 2026-08-12: 63

## Links

- npm package: https://www.npmjs.com/package/scenariosim-mcp
- Socket report: https://socket.dev/npm/package/scenariosim-mcp
- Repository: https://github.com/inity13/scenariosim-mcp
- Changelog RSS feed: https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp-2.xml
- Changelog JSON feed: https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp-2.json
- HTML version of this page: https://verifymcp.io/servers/inity13-scenariosim-mcp/scenariosim-mcp-2