CSIS MCP Server

MCP server that exposes the Coordination Structural Integrity Suite as AI tools.

The Coordination Structural Integrity Suite (CSIS) is ten structural standards for coordination systems that need to be accountable, consent-legible, and exploitation-resistant. Specifications are licensed CC BY 4.0; co-released with CROSS (CC0). The canonical source repository is github.com/coordination-structural-integrity-suite/suite.

This server provides metadata and structural access to CSIS through MCP tools. The substrate discipline requires that substantive PFDS or other standard-level work read the full standard directly rather than substituting summaries; this server returns pointers and structural data rather than displacing the source.

Tools (v0.3.1)

Seven tools:

list_standards

List the ten CSIS standards (seven compressive plus three generative). Returns canonical names, short ids, family, current version, GitHub paths, GitHub URLs, and brief descriptions. Optional family filter (compressive, generative, or all).

get_foundational_commitments

Return the foundational commitments: the unified principle of precision and non-harming (held together via transclusion as PFDS specifies, not as two principles held externally); why holding either alone fails (control instrument vs. attack surface); the structural outcome; and the substrate inheritance hierarchy (CSIS substrate; Frame Language derived; PoC and CROSS+WALKRI as siblings inheriting from CSIS). Includes the general principle that inheritance order is independent of chronological order.

lookup_corollary

Return one of the ten PFDS corollaries. Each corollary specifies its precision condition in two directions: under-specification failure mode and over-specification failure mode. Includes worked examples from PFDS Section 4 where applicable.

lookup_structural_pattern

Return one of the ten named structural patterns from the Suite Structural Patterns Primer. Returns structural arrangement, which standards are involved, observable signature, and maturity status (original-six from cross-context analysis, or four-added working hypotheses from specific evaluations).

lookup_descriptive_class

Return one of the six descriptive classes from the Descriptive Typology Map (referenced by PFDS Corollary 8): structural-mechanical, temporal-dynamic, epistemic-perceptual, relational-topological, felt-experience, action-structural. Use to apply Corollary 8 typological declaration.

get_inheritance_graph_with_specialty

Return the substrate inheritance hierarchy. Optionally place a named coordination specialty (e.g., "AI evaluation", "ESG reporting") as a sibling of PoC and CROSS+WALKRI under CSIS.

audit_against_corollary

Apply a PFDS corollary as a precision-first structural test on a specification, claim, or document. Returns the corollary's under- and over-specification failure modes, its requirement, and a worked example, plus a prompt template for applying the audit when text is provided.

Planned tools (future versions)

• lookup_naming_decision(decision_number) - PoC terminology conventions entries (if PoC has a separate MCP server, this stays there; otherwise served from PoC server)

Using this server

This server is hosted at https://csis-production.up.railway.app/mcp, and is published to npm as @proof-of-coord/structural-integrity and to JSR as jsr:@proof-of-coord/structural-integrity.

Connect the hosted server (nothing to install), or run it locally from the package:

# hosted, no install
claude mcp add --transport http csis https://csis-production.up.railway.app/mcp

# or run locally from npm, no clone
claude mcp add csis -- npx -y @proof-of-coord/structural-integrity

The four MCP servers are listed at integritysuite.org/built, and the full reference for every connection method (hosted, npm, JSR, and a local clone) is Using the MCP servers.

Architecture

Single-package TypeScript project. Data files in src/standards.ts, src/foundational-commitments.ts, src/corollaries.ts, src/structural-patterns.ts, and src/descriptive-classes.ts hold the structural metadata. The MCP server in src/index.ts wires the data to tool calls.

Future versions may add PoC naming-decision lookups.

License

Apache-2.0, matching the CSIS suite convention for code artifacts. The substrate this server provides access to (the CSIS standards) is published as CC BY 4.0 specifications at the suite repo; this server is the code that surfaces structural metadata about those specifications.

See also

• github.com/coordination-structural-integrity-suite/suite - the canonical CSIS standards
• github.com/CrossWalkri/tools - the CROSS+WALKRI MCP server (sibling pattern)
• github.com/coordination-structural-integrity-suite/ai - AI prompt launcher for the suite