Claude Handoff: Capability Lattice Specification

Goal

Formalize the Capability Lattice concept as introduced in community-protocol-trust-substrate. The objective is to create a specification that formally maps MCP tool manifests to the type signatures of the underlying rust and C# implementations, enabling static analysis of multi-agent workflows.

Seam

The vault currently contains:

• The polyglot-platform-adr, which defines the aspirational Tier-0 (Rust) and Tier-1 (C#) architecture.
• A complete reference for the Model Context Protocol.
• The community-protocol-trust-substrate note, which proposes the core theory but lacks a formal specification.

The concepts are linked, but no formal schema exists to bridge the MCP layer with the language type systems. This handoff is the seam between the high-level theory and the creation of a formal engineering specification.

Deliverables

1. Create 01_Wiki/capability-lattice-spec.md. This note should have status: draft and type: spec.
2. The specification must define:
   • • A schema for mapping an MCP tool's inputSchema and outputSchema to a Rust function signature (e.g., fn(Args) -> Result<Success, Error>).
     • An equivalent schema for a C# method signature, including how ASP.NET Core DI scopes might factor in.
     • A formal definition of how composing two agents (an orchestrator and a sub-agent) results in a new capability set, expressed as a type-level operation (e.g., intersection).
     • Example mappings for a hypothetical FileManager MCP server with readFile and writeFile tools.
3. Update 01_Wiki/community-protocol-trust-substrate.md: Change its status to active and add a reference to the newly created capability-lattice-spec.

This task involves formalizing an architectural concept and does not require writing or modifying any live code.

References

• community-protocol-trust-substrate
• polyglot-platform-adr
• mcp-moc
• rust-mcp-patterns
• csharp-mcp-sdk
• claude-session-types-handoff
• claude-a2a-protocol-handoff