By llow-group
Build, validate, analyse, and test insurance pricing models with the Swallow Pricing Engine via MCP
Insurance pricing specialist that builds, validates, and iterates on Swallow pricing models
Insurance pricing analyst that stress-tests models, maps pricing surfaces, identifies competitive positioning, and recommends commercial improvements
Build a Swallow pricing engine configuration from a natural language description of an insurance product
Convert an Excel rating workbook (.xls/.xlsx) into a Swallow pricing engine configuration. Reads formulas, traces dependencies, and rebuilds as Swallow JSON.
Load the Swallow Pricing Engine documentation and JSON schema as reference context
Run a Swallow project's tests through the pricing engine and analyse results
Validate an existing Swallow project configuration against the schema
External network access
Connects to servers outside your machine
Uses power tools
Uses Bash, Write, or Edit tools
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A Claude Code plugin that connects to the Swallow insurance pricing engine via MCP. Build, validate, test, and publish insurance pricing models directly from Claude — then serve live quotes via API.
Insurance carriers and MGAs spend weeks translating actuarial Excel models into production-ready systems. Engineering handoffs, manual rate filings, and dev sprints for every rate change slow time-to-market and introduce errors.
Swallow eliminates that cycle. Define your pricing logic as a JSON configuration — rating factors, decision rules, exclusions, endorsements, excesses, referrals — and Swallow runs it as a production API. No custom code, no deployment pipeline, no engineering tickets.
When you publish a project, Swallow creates a free account automatically using your email address. The free tier includes 100 quotes per month — enough to test, demo, and validate your pricing model end-to-end. For higher volumes, manage your account at swa.llow.io.
There are two ways to use this project — as a full plugin (Claude Code only) or as a standalone MCP server (Claude Chat, Claude Code, or any MCP client). The plugin includes the MCP server, so you don't need to set up both.
| Plugin | MCP Server | |
|---|---|---|
| Platform | Claude Code | Claude Chat, Claude Code, any MCP client |
| MCP Tools | Yes | Yes |
| MCP Prompts | Yes | Yes |
| MCP Resource | Yes | Yes |
| Skills | Yes | No |
| Agents | Yes | No |
| Documentation | Yes (bundled) | Yes (via MCP) |
The full plugin gives you everything: MCP tools, prompts, skills, agents, and bundled documentation.
Add the marketplace and install the plugin:
/plugin marketplace add llow-group/swallow-claude-plugin
/plugin install swallow-pricing-engine@swallow-pricing-engine
/reload-plugins
Or add it manually to your Claude Code settings (~/.claude/settings.json):
{
"extraKnownMarketplaces": {
"swallow": {
"source": "github",
"repo": "llow-group/swallow-claude-plugin"
}
}
}
Then install:
/plugin install swallow-pricing-engine@swallow
You can choose your installation scope:
.claude/settings.json)Clone the repo and load it directly:
git clone https://github.com/llow-group/swallow-claude-plugin.git
claude --plugin-dir ./swallow-claude-plugin
This is useful for development, testing, or customising the plugin before sharing.
| Skill | Description |
|---|---|
/swallow-pricing-engine:build-pricing-model | Guided workflow for building a Swallow config from a product description |
/swallow-pricing-engine:excel-to-swallow | Convert an Excel workbook to Swallow JSON by tracing formulas |
/swallow-pricing-engine:validate-project | Run deep schema validation on a project file |
/swallow-pricing-engine:test-project | Run and debug embedded tests |
/swallow-pricing-engine:swallow-docs | Load documentation, JSON schema, and agent rules into context |
| Agent | Role | When to use |
|---|---|---|
swallow-actuary | Builds technically correct pricing models | Creating new models, fixing validation errors, adding steps/factors |
swallow-analyst | Reviews models commercially | Understanding pricing behaviour, competitive positioning, recommending improvements |
The actuary builds the model. The analyst tells you if the model makes commercial sense.
Both agents call docs_swallow_project to load the latest rules and constraints before working.
@swallow-actuary Build a motor insurance model with age, vehicle value,
postcode, NCD, and conviction count as rating factors
Or via skill:
/swallow-pricing-engine:build-pricing-model
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