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Copilot AI commented Jan 20, 2026

Analyzed 9 AS400 COBOL programs (~41K LOC) in the QCBLLESRC directory and generated comprehensive technical documentation.

Report Coverage

  • Data structures: Complete variable reference with levels, types, sizes, and group hierarchies
  • Control flow: Procedure divisions, paragraphs, sections, and call relationships
  • File I/O: Access patterns, FD linkage, and database interactions (STAVY/OBRATY files)
  • Dependencies: Program relationships, copybook usage, external calls
  • SQL/DB2: None found (uses native COBOL file I/O)

Key Findings

Critical Issues:

  • STAOBR2.CBLLE contains incomplete PERFORM statement (line 69)
  • Missing file status checking in 5 of 9 programs

Architecture:

  • No circular dependencies detected
  • Four programs implement same inventory update logic with varying quality levels
  • staobr0cp.cblle is production-ready; others are prototypes/demos

Code Quality Spectrum:

  • STAPOR.CBLLE: Interactive maintenance with proper structured programming
  • staobr0cp.cblle: Comprehensive error handling and logging
  • STAOBR.CBLLE/STAOBR_2.CBLLE: Basic functionality, minimal error handling
  • STAOBR2.CBLLE: Buggy, should not be used

Report includes consolidation recommendations, Czech-to-English term mappings, and modernization strategy.

📄 AS400/QCBLLESRC/cobol_analyzer_report.md (1,456 lines)

Original prompt

Analyze the code in folder #file:AS400/QCBLLESRC and generate a report on the code.

Custom agent used: Cobol Analyzer Agent
Analyze the provided COBOL code structure and identify dependencies, circular references, modularity issues among other items.


💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

Co-authored-by: raykao <860691+raykao@users.noreply.github.com>
Copilot AI changed the title [WIP] Generate report on code analysis in AS400/QCBLLESRC Add COBOL code analysis report for AS400/QCBLLESRC Jan 20, 2026
Copilot AI requested a review from raykao January 20, 2026 23:53
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2 participants