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Ripple effect analysis patterns for COBOL change impact. Covers how changes propagate through CALLS, INCLUDES, and shared data relationships. Use when impact-analyzer agent is performing blast radius assessment.
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インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
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npx skills add https://github.com/vin082/LegacyCobolInsightsusingCustomAgents --skill impact-analysisコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
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COBOL language grammar, division and section structure, PIC clause syntax, level numbers, procedure division verbs, and language construct reference. Use when parsing, analysing, or explaining COBOL source code structure.
SOC 職業分類に基づく
SKILL.md を表示中
| name | impact-analysis |
| description | Ripple effect analysis patterns for COBOL change impact. Covers how changes propagate through CALLS, INCLUDES, and shared data relationships. Use when impact-analyzer agent is performing blast radius assessment. |
Risk: LOW to MEDIUM Affects: Programs that directly CALL the changing program
MATCH (caller:Program)-[:CALLS]->(target:Program {program_id: $name})
RETURN caller.program_id, caller.estimated_complexity
Risk: MEDIUM to HIGH Affects: All programs in the call chain above the changed program
MATCH path = (upstream)-[:CALLS*1..]->(target:Program {program_id: $name})
RETURN upstream.program_id, length(path) AS depth
ORDER BY depth
Risk: HIGH (copybooks are shared) Affects: Every program that INCLUDEs the copybook, plus their callers
MATCH (p:Program)-[:INCLUDES]->(cb:Copybook {name: $name})
OPTIONAL MATCH (caller)-[:CALLS*1..5]->(p)
RETURN DISTINCT p.program_id AS direct, collect(DISTINCT caller.program_id) AS transitive
Risk: HIGH if item is widely used Strategy: Trace which paragraphs READ or WRITE files that use this data item
MATCH (cb:Copybook {name: $copybook})-[:DEFINES]->(di:DataItem {name: $item})
MATCH (p:Program)-[:INCLUDES]->(cb)
RETURN p.program_id, p.estimated_complexity
| Factor | Weight | Scoring |
|---|---|---|
| Direct caller count | 30% | 0 callers=0, 1-3=1, 4-7=2, 8+=3 |
| Transitive caller depth | 20% | depth 1=1, 2=2, 3+=3 |
| Copybook breadth | 25% | 1 program=0, 2-5=1, 6-10=2, 10+=3 |
| Program complexity | 15% | LOW=0, MEDIUM=1, HIGH=2, CRITICAL=3 |
| Risk flags | 10% | 0 flags=0, 1=1, 2=2, 3=3 |
Total score 0-3: LOW | 4-6: MEDIUM | 7-9: HIGH | 10-12: CRITICAL