Plugin

Guidewire Pack

Claude Code skill pack for Guidewire InsuranceSuite (10 skills)

Type: Plugin
Repository: jeremylongshore/tons-of-skills-marketplace
GitHub stars: 2.8k
License: MIT
Repo last updated: Sep 27, 2026
Source file: plugins/saas-packs/guidewire-pack/.claude-plugin/plugin.json
Version: 1.26.0
Author: Jeremy Longshore

What Guidewire Pack is

Guidewire Pack is a plugin published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”

A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.

Installing Guidewire Pack adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.

How to install Guidewire Pack

Claude Code

Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace
Install the plugin: claude plugin install guidewire-pack@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
Restart the session if the new skills or commands don't appear straight away.

Claude Cowork

Open Customize → Plugins and choose Add marketplace.
Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub).
Find Guidewire Pack in the list, click Install, then connect any connectors it needs from its Connectors tab.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from plugins/saas-packs/guidewire-pack/.claude-plugin/plugin.json, shared under the repository's MIT license. Read the full file on GitHub.

> 10 production-engineer Claude Code skills for Guidewire InsuranceSuite. Each skill addresses real Cloud API failure modes — token storms, checksum 409s, blocked binds, FNOL dedup, secret rotation — not tutorial walk-throughs.

What This Is

A focused skill pack for engineers building, deploying, and operating Guidewire Cloud API integrations in production. Every skill is structured around the failure modes a working integration actually hits: token expiry storms during traffic spikes, checksum conflicts under concurrent edits, scope drift when a tenant admin reconfigures roles, FNOL duplication from multi-source intake, premium drift on mid-term endorsements, GCC slot promotion that breaks running policies, App Events that never fire because Gosu registration was missed.

This is the pack you reach for when "make a hello-world request" has been done two years ago and the question is "how do we run this at carrier scale without paging on-call every weekend."

v2.0.0 (May 2026) — full rebuild from v1's 24-skill scaffold to 10 production-focused skills, every one validated at A-grade (≥90/100) on the marketplace tier.

Installation

/plugin install guidewire-pack@claude-code-plugins-plus

Or directly:

npm install @intentsolutionsio/guidewire-pack

The 10 skills

Quality bar

Every skill in this pack ships at A-grade (≥90/100) on the Intent Solutions marketplace validator (scripts/validate-skills-schema.py --marketplace). Pack-wide:

10/10 A-grade, average 95.9/100
Lowest 93/100, well above the 90 floor
0 ERROR-level findings across the pack
Every skill has a references/API_REFERENCE.md deep-dive
Every cross-reference points to a sibling that actually exists

Key Guidewire concepts (refresher)

InsuranceSuite — PolicyCenter (policy admin) + ClaimCenter (claims) + BillingCenter (billing)
Cloud API — RESTful APIs with OAuth2 client-credentials auth via Guidewire Hub; runtime URLs on *.guidewire.net
Gosu — JVM language for server-side business logic (rules, validations, App Event builders)
GCC — Guidewire Cloud Console (gcc.guidewire.com) — tenant administration, app registration, deployment slots, audit
App Events — typed business events fired by InsuranceSuite on entity-state transitions; routed to SQS/SNS/webhooks
Slots — GCC's promotion mechanism (dev/uat/prod); config packages are deployed to slots, not built on the slot
Checksum — every Cloud API resource carries one; PATCH/PUT must echo it for optimistic locking

What's deliberately not in this pack (v2.0.0)

Cut from v1 because they were tutorial fluff or generic insurance 101:

Hello-world / first-API-call walkthroughs
Generic "common errors" lookup (folded into observability triage)
Reference-architecture overview (architectural context, not a how-to)
Generic data-handling (no Guidewire-specific automation value)

Deferred to v2.1+:

guidewire-performance-and-cost — JVM tuning, Gosu Query API N+1 elimination, license utilization (deferred until validated against a real tenant by a Guidewire domain expert; current calculateLicensingCost patterns in v1 were unverifiable)

Treat the pack as the answer to "how do we run a Guidewire integration in production without setting fires" — not as the answer to "I have never used Guidewire, where do I start." For the latter, Guidewire's developer portal is the right starting point.

About Guidewire

Guidewire is the leading platform for P&C (Property & Casualty) insurance carriers. As of May 2026, Guidewire does not ship an official MCP server, and there is no community MCP server in the public registry. The skills in this pack are the foundation for any future MCP layer around Guidewire's system of record.

Resources

Guidewire Developer Portal
Cloud API Reference (PolicyCenter)

Before you install

Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
Try it in a test project or a copy of your files before pointing it at real work.
Pin the version you tested, and review changes before updating.
Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Guidewire Pack?

Guidewire Pack is a plugin for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Claude Code skill pack for Guidewire InsuranceSuite (10 skills)

How do I install Guidewire Pack in Claude Code?

Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace Install the plugin: claude plugin install guidewire-pack@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.

Can I use Guidewire Pack in Claude Cowork?

Open Customize → Plugins and choose Add marketplace. Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub). Find Guidewire Pack in the list, click Install, then connect any connectors it needs from its Connectors tab.

Is Guidewire Pack safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.