cobol

Original：🇺🇸 English

Translated

COBOL for mainframe and legacy business systems. Use for .cob files.

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Sourceg1joshi/agent-skills

Added on2026-02-11

NPX Install

npx skill4agent add g1joshi/agent-skills cobol

SKILL.md Content

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COBOL

COBOL runs 70% of the world's business transactions. Modern COBOL (GnuCOBOL 3.2 / IBM Enterprise COBOL) supports JSON, XML, and Object-Oriented features.

When to Use

Mainframes: The backbone of banking/insurance systems (CICS/IMS).
Legacy Migration: Moving logic to Linux/Cloud using GnuCOBOL.
Decimal Arithmetic: Native fixed-point math (
```
PICTURE 9V99
```
) is unmatched for currency.

Core Concepts

Divisions

IDENTIFICATION

,

ENVIRONMENT

,

DATA

,

PROCEDURE

.

Picture Clause

01 SALARY PIC 9(5)V99

. Defines data layout precisely.

PERFORM

The main control flow loop.

Best Practices (2025)

Do:

Use GnuCOBOL: For local development on Mac/Linux.
Use
VS Code
: With the
```
bitlang.cobol
```
extension.
Unit Test: Use
```
COBOL Check
```
or
```
ZUnit
```
.

Don't:

Don't use
GO TO
: Use
```
PERFORM
```
and structured programming.

References

GnuCOBOL FAQ