Skill

objectscript-tdd

Guides compile-test-fix loop for ObjectScript classes in IRIS, including compilation commands, common error fixes, and unit test runs. Use when writing or modifying classes.

testing

code-quality

npx claudepluginhub intersystems-community/iris-dev

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Close the feedback loop: write → compile → fix errors → run tests → fix failures → done.

SKILL.md

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Last CommitApr 23, 2026

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Error

Cause

Fix

QUIT argument not allowed

Quit <val> inside TRY/CATCH or loop

Change to Return <val>

Expected a compilable class

Missing Class keyword or malformed header

Check class declaration line

Method does not exist

Intra-class call without ..

Add .. prefix

<UNDEFINED> at runtime

Variable used before SET

Initialize variable before use

Expected white space

Missing space after command keyword

Add space: Set x=1 not Setx=1

Purpose

Close the feedback loop: write → compile → fix errors → run tests → fix failures → done.

Process Flow

Write the class
Review — run objectscript-review skill first
Compile — run the compile command for this project
If compile errors: read the error, identify the line, fix it. Return to step 3.
Run tests — run the unit test suite
If test failures: read the failure message, fix the code or the test. Return to step 3.
Done when: compiles clean + all tests pass

Compile Command

Use the objectscript MCP tool when available (check /mcp):

iris_compile(target="MyPackage/MyClass.cls", namespace="USER")

Fallback when MCP is unavailable:

iris session IRIS -U USER "Do $System.OBJ.Load(\"<ClassName>.cls\",\"ck\")"

Key Principle

Never present code to the user that hasn't compiled. If you can't compile (no IRIS access), flag this explicitly:

⚠️ No IRIS connection available — code is unverified. Recommend compiling before use.

Common Compile Errors and Fixes

Error	Cause	Fix
`QUIT argument not allowed`	`Quit <val>` inside TRY/CATCH or loop	Change to `Return <val>`
`Expected a compilable class`	Missing `Class` keyword or malformed header	Check class declaration line
`Method does not exist`	Intra-class call without `..`	Add `..` prefix
`<UNDEFINED>` at runtime	Variable used before SET	Initialize variable before use
`Expected white space`	Missing space after command keyword	Add space: `Set x=1` not `Setx=1`