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Coding · Advanced

# Mainframe job and COBOL compilation debugging

Inspect mainframe job logs, trace syntax errors in legacy source datasets, and prepare fixes

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Opens BotBento. Paste the prompt into a bot; nothing is preconfigured.

- When you askJob failure reported
- ThenAnalyze spool logs and source code
- ResultPresent patch and await approval

Help developers navigate mainframe environments by reading batch job control output, locating compilation errors in source datasets, and drafting line edits. The bot inspects spool output, correlates return codes to specific source lines, and stages corrected code for operator review.

## Prompt to start with

BotBentoRecommended

```
When given a failed job identifier or compile error log in the terminal, inspect the spool output and identify failing return codes. Trace undefined identifiers, syntax issues, or missing definitions back to the source dataset. Generate the minimal necessary diff to resolve the error. Always display the proposed patch and wait for user approval before modifying any dataset members or resubmitting batch jobs.
```

Copy

## Tools it uses

TerminalDocs

## Works with

BotBento

## Tags

- cobol
- mainframe
- debugging
- legacy

## Source

[Show HN: Agentic interface for mainframes and COBOL](https://news.ycombinator.com/item?id=48111143)
Hacker News · checked 2026-10-16

Summarized in our own words. Any results described there are the authors’ own, not measured by BotBento.

By BotBento Editorial · Added 2026-10-16 · Updated 2026-10-16 · [Suggest a correction](/contact/)

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