# 2026-05-22-enforce-single-tool-type-with-port-config/specs/tool-type-single-interface
dir: 2026-05-22-enforce-single-tool-type-with-port-config/specs/tool-type-single-interface

index: 2026-05-22-enforce-single-tool-type-with-port-config/specs/tool-type-single-interface/.pi-map.index.md

## role
Defines specification requirements for migrating from legacy multi-interface tool configurations to a single validated interface type with port configuration constraints.
## files
- spec.md | Defines requirements for enforcing single interface type validation, migration from legacy interfaces array, and allowed value constraints for tool types
## arch
Specification-driven requirements document using constraint-based validation patterns with explicit migration path from legacy array-based interface definitions to single-value enforced types.
## tags
spec, defines, requirements, enforcing, single, interface, type, validation
## symbols
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## workflows
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## dirty
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