Individual skill
construct-hierarchy
Construct an acyclic is-a/part-of/instance-of hierarchy with explicit roots, depth, and transitivity constraints.
skills/construct-hierarchy/SKILL.md
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# construct-hierarchy
## Purpose
Construct an acyclic is-a/part-of/instance-of hierarchy with explicit roots, depth, and transitivity constraints.
## Input contract
```yaml
required: [entity_set, relation_assertions, hierarchy_scope]
optional: [root_policy, multiple_inheritance_policy, depth_limit]
constraints: [relations use declared types; cycles are invalid]
```
## Procedure
1. Normalize entity identifiers and relation types.