MNCS Forge MCP

MNCS Forge is an experimental, non-normative Model Context Protocol server and CLI that gives Codex an MNCS-native development and evidence control plane. It makes project authority, candidate lineage, epochs, declared checks, evidence gaps, selection, freeze, and evaluator-mode boundaries explicit.

Forge is not required for MNCS conformance, an accredited certification system, a source of independence or protected custody, or another universal Code Property Graph system. It does not replace Joern. Joern, compilers, analyzers, benchmarks, mutation systems, sanitizers, and runtime harnesses remain replaceable evidence providers.

Version 0.1.0a1 is a reference experiment. Local results do not promote MNCS, MNCDS, RFCs, or case studies. REVIEW_REQUIRED is a workflow disposition, not an MNCS result. Status aggregation is FAIL > UNKNOWN > PASS; absent or unsupported evidence never silently becomes PASS.

Architecture

flowchart LR
  Codex[Codex / MCP client] -->|MCP stdio| Forge[MNCS Forge control plane]
  Human[Human CLI] --> Forge
  Forge -->|declared argv only| Providers[Provider Protocol 0.1 providers]
  Forge -->|declared workflows| Harnesses[compilers, tests, benchmarks, analyzers]
  Providers --> Records[append-only local records]
  Harnesses --> Records
  Forge --> Records
  Records -->|public commands and schemas| Validators[MNCS and MNCDS offline validators]
  Validators --> Separate[separate MNCS / MNCDS results]

MCP is the interactive Codex interface. Provider Protocol 0.1 is the deterministic analyzer interface. MNCS and MNCDS validators remain offline result authorities. Forge never copies their conformance logic into its control plane.

Related MCP server: Codex Memory MCP Server

Quick start

python3 -m venv .venv
. .venv/bin/activate
python -m pip install -e '.[dev]'
mncs-forge --config examples/minimal/mncs-forge.toml config validate
mncs-forge --config examples/minimal/mncs-forge.toml inspect

For an MNCS checkout containing the committed EdgeStream integration configuration:

./scripts/install-codex-mcp.sh \
  /absolute/path/to/machine-native-complexity-standard/mncs-forge.toml
./scripts/verify-codex-mcp.sh \
  /absolute/path/to/machine-native-complexity-standard/mncs-forge.toml

Start a new Codex session after registration; an already-running process is not assumed to reload MCP servers dynamically. Uninstall with ./scripts/uninstall-codex-mcp.sh.

Interfaces

The mncs-forge CLI provides doctor, inspect, status, blockers, epoch begin, candidate register/compare/select/reject, check development, explain, freeze, evaluate, reconcile, bundle, ledger verify, and config validate.

The mncs-forge-mcp stdio server exposes project inspection, separate claim status and blockers, epoch/candidate control, declared checks, compact failure explanation, policy-bound comparison and disposition, freeze/final evaluation, reconciliation, and bundle orchestration. Read-only resources summarize authority, active state, evidence, blockers, and usage. Prompts guide the controlled workflow but cannot bypass tool authority checks.

Documentation

• Architecture and trust boundaries

• Configuration

• Security model and residual risks

• CLI and MCP surface

• Codex installation

• EdgeStream integration

• Provider Protocol integration

• Evidence and identity model

• Compatibility

Licensed under Apache-2.0.