# openspec/changes/archive/2026-06-14-completed-specs-archive/tool-type-single-interface
dir: openspec/changes/archive/2026-06-14-completed-specs-archive/tool-type-single-interface

index: openspec/changes/archive/2026-06-14-completed-specs-archive/tool-type-single-interface/.pi-map.index.md

## role
Defines requirements for standardizing tool type interfaces to a single interface pattern with validation and legacy data migration.
## files
- spec.md | Specification document defining requirements for enforcing single interface types, validating allowed values, and migrating legacy data in a tool type system
## arch
Specification-driven architecture using markdown-based requirements documentation with explicit validation rules, allowed value constraints, and phased migration strategy for backward compatibility.
## tags
spec, specification, document, defining, requirements, enforcing, single, interface
## symbols
-
## workflows
-
## dirty
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