Ready to supercharge your AI agents?

Install any skill in seconds. Free to start, no credit card required.

Get Started Free →

Guidewire Local Dev Loop · jeremylongshore | DecimalAI

codingby jeremylongshore

Guidewire Local Dev Loop

jeremylongshore/guidewire-local-dev-loop

Source jeremylongshore/claude-code-plugins-plus-skills ↗License MIT

Iterate on Gosu rules and configuration without paying the full 5–15 minute runServer rebuild every time.

SkillScore77Maintained

Automatic

Coding packguidewiregosustudio

Last verified 8/30/2026

What it changes

Passed 17 of 22 test cases with the skill, and 7 of 22 without it.

Without skill32%

With skill77%

Checks it passed that the model alone missed

Specifies port 8088 for remote JVM debugging.
Recommends running ./gradlew clean compileGosu.
Prescribes running ./gradlew dropAndCreateDatabase runServer.

and 11 more in the full report

10 fixed7 passed either way5 still failing0 broke

Pass-rate lift: +45 pp
Tokens: +68%
Agent turns: 0%
Response time: -22%

Model gemini-3.6-flashMeasured 8/30/2026v117 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/jeremylongshore-guidewire-local-dev-loop/SKILL.md https://app.decimal.ai/s/jeremylongshore-guidewire-local-dev-loop/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add jeremylongshore-guidewire-local-dev-loop, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/jeremylongshore-guidewire-local-dev-loop/ and pins it in .decimal/skills.lock

decimalai skills add jeremylongshore-guidewire-local-dev-loop

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/jeremylongshore-guidewire-local-dev-loop/SKILL.md https://app.decimal.ai/s/jeremylongshore-guidewire-local-dev-loop/SKILL.md

Raw file: /s/jeremylongshore-guidewire-local-dev-loop/SKILL.md ↗ · machine-readable summary at /s/jeremylongshore-guidewire-local-dev-loop.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

I added a new entity column to the PolicyCenter data model. What exact Gradle command resets the database schema and boots the server?

What was checked, without and with the skill
Checked	Without skill	With skill
Prescribes running ./gradlew dropAndCreateDatabase runServer.	Missed	Passed

case-06 · gemini-3.6-flash · 8/30/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md163 lines3 files

Guidewire Local Dev Loop

Overview

Run a local InsuranceSuite instance and iterate on Gosu rule logic in seconds, not minutes. The single biggest productivity killer in Guidewire development is paying the 5–15 minute gradle runServer cold-start cost on every change because the developer does not know which edits hot-reload and which force a restart.

Three production problems this skill prevents:

Restart cascade — developer changes a Gosu rule, restarts runServer, waits 8 minutes, finds the rule was wrong, repeats. A full day disappears in restarts.
Silent stale code — Studio claims it hot-reloaded a class but the running JVM is still executing the old bytecode (common when interfaces change). Tests pass against stale code.
GUnit drift — unit tests for Gosu rules diverge from the rules themselves because the cycle to run a single test through Studio is too slow; developers stop writing them.

Prerequisites

JDK 17 (for Cloud release 202503+)
Guidewire Studio installed (IntelliJ-based, distributed by Guidewire)
Local InsuranceSuite configuration zone (PolicyCenter, ClaimCenter, or BillingCenter)
≥16 GB RAM on the dev machine — runServer + Studio + the JVM debug agent need headroom
Sample data loader configured for the chosen product (e.g., PersonalAuto for PC)

Instructions

Build the inner loop in this order. Every step targets one of the three productivity killers above.

1. Start runServer once, keep it warm

Cold start takes 5–15 minutes; treat it as a session investment.

# Start in dev mode with debug agent on 8088, leaves the server attached to the terminal
./gradlew runServer -Pdebug=true -PdebugPort=8088 -Dgw.servermode=dev

gw.servermode=dev enables the hot-reload paths inside the JVM. debugPort=8088 exposes the JDWP debug agent — attach IntelliJ to it once and leave it. Restart only when the what hot-reloads table below says you must.

2. What hot-reloads, what does not

Memorize this table — it determines whether the next edit costs 0 seconds or 8 minutes.

| Change type | Hot-reload? | Action |

Track record

Benchmark

17 / 22

test cases passed, vs 7 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

jeremylongshore / claude-code-plugins-plus-skills

skills/.curated/guidewire-local-dev-loop/SKILL.md

View on GitHub ↗

License MITImported 8/25/2026Version v1Bundled 2 files

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Guidewire Local Dev Loop

Overview

Prerequisites

Instructions

1. Start runServer once, keep it warm

2. What hot-reloads, what does not

Track record

Benchmark

Adoption

SkillSafety

Source

Related skills