Extract mainframe source inventories and JCL job chains from z/OS source drops.
npx skills add https://github.com/duboc/mainframe-skills-mig --skill jcl-crawler
Please help me install this Agent Skill. Skill: jcl-crawler Source: https://github.com/duboc/mainframe-skills-mig/tree/main/skills/01-jcl-crawler Command: npx skills add https://github.com/duboc/mainframe-skills-mig --skill jcl-crawler
Create a complete, auditable inventory of mainframe source artifacts and their runtime relationships to eliminate surprises during migration and enable downstream translation, testing, and cutover planning.
Run the jcl-crawler on your source drop to generate the JCL inventory, program inventory, comp3 registry, BMS screens, job chain diagram, and call graph for Phase 01.
High-intent search queries and answers about installing and using this skill.
To extract a mainframe inventory, parse z/OS source drops containing COBOL, JCL, and copybooks. This generates structured artifacts like program_inventory.json and jcl_inventory.json, mapping job chains and program relationships for migration planning.
COMP-3 detection works by parsing COBOL source and expanding copybooks to identify computational-3 packed decimal fields. It registers these fields in a comp3_registry.json file, ensuring traceability of packed decimal data structures during migration analysis.
Yes, you can build an inter-program call graph by parsing BMS mapsets into structured screen definitions and extracting CALL targets from COBOL programs. This identifies tightly coupled clusters to inform service boundary decisions.
Map JCL job chain dependencies by parsing job names, execution steps, and DD datasets. This produces a job_chain.mmd diagram revealing producer and consumer relationships across runtime jobs, clarifying batch processing workflows.
Parsing EBCDIC encoded mainframe source artifacts detects blockers like missing copybooks and encoding errors. The process enforces blocker thresholds before marking Phase 01 complete, ensuring operational safety.
DauQuangThanhAnalyze COBOL programs, JCL jobs, and copybooks to generate a Java migration plan.
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