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0001-core-contract.md

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id ADR-0001
title ruflo-core plugin contract — pinning, MCP server contract, plugin-catalog discovery, smoke as contract
status Accepted
date 2026-05-04
updated 2026-05-09
authors
reviewer (Claude Code)
tags
plugin
core
mcp
foundation
smoke-test

Context

ruflo-core is the foundation plugin. Every other plugin (ruflo-ruvector, ruflo-agentdb, ruflo-browser, ruflo-intelligence, ruflo-adr, ruflo-aidefence, ruflo-autopilot, plus 25 others) depends on the MCP server it registers via .mcp.json and the orchestration patterns it documents.

Today's plugin (v0.1.0):

  • .claude-plugin/plugin.json:4 — version: "0.1.0", keywords mcp, orchestration, claude-code
  • .mcp.json — registers ruflo MCP server via npx -y @claude-flow/cli@latest
  • agents/ — 3 generalists (coder, researcher, reviewer)
  • skills/ — 3 first-run helpers (init-project, ruflo-doctor, discover-plugins)
  • commands/ruflo-status.md — system status one-liner
  • README.md — terse: "What's Included" + Configuration only

The discover-plugins skill is a substantial asset — a curated 32-plugin catalog with decision guides. That stays.

What's missing matches the cadence we've established:

  1. No plugin-level ADR. Foundation plugin should document its own contract since 30+ plugins depend on it.
  2. No smoke test.
  3. No Compatibility section pinning to @claude-flow/cli v3.6.
  4. MCP server tool count is undocumented. discover-plugins mentions "314 tools" once, but this should be a contract claim with a verification path.
  5. No cross-references to sibling ADRs (namespace convention, 3-gate pattern, 4-step pipeline) that other plugins now reference.

Decision

1. Add this ADR (Proposed)

docs/adrs/0001-core-contract.md. Cross-links the seven sibling ADRs.

2. README augmentation (no rewrite)

Append:

  • Compatibility — pin to @claude-flow/cli v3.6. Note the npx -y @claude-flow/cli@latest invocation in .mcp.json is the dynamic resolver; smoke verifies the resolved version.
  • MCP server contract — the registered ruflo MCP server exposes 300+ tools across families: memory_*, agentdb_*, embeddings_*, ruvllm_*, hooks_*, aidefence_*, neural_*, autopilot_*, browser_*, agent_*, swarm_*, system_*, etc. Runtime truth via mcp tool call mcp_status.
  • Sibling contracts — pointer block to the seven sibling ADRs that already define namespace convention, 3-gate pattern, 4-step pipeline, etc.
  • Architecture Decisions + Verification sections.

3. Plugin metadata bump

0.1.0 → 0.2.0. Keywords add foundation, mcp-server, plugin-catalog, discovery.

4. Smoke contract (scripts/smoke.sh)

10 checks:

  1. plugin.json declares 0.2.0 with the new keywords.
  2. .mcp.json exists and registers a ruflo MCP server.
  3. All 3 agents present (coder, researcher, reviewer) with valid frontmatter.
  4. All 3 skills present (init-project, ruflo-doctor, discover-plugins) with valid frontmatter.
  5. discover-plugins skill catalog references at least 25 sibling plugins (the curated catalog).
  6. README pins to @claude-flow/cli v3.6.
  7. README cross-references sibling contracts (namespace convention, 3-gate pattern, 4-step pipeline).
  8. ADR-0001 exists with status Proposed.
  9. commands/ruflo-status.md invokes doctor and status.
  10. No skill grants wildcard tool access.

Consequences

Positive:

  • Foundation plugin is now contractually self-documenting.
  • Sibling-ADR cross-references make the cohesive plugin family discoverable from the entry point.
  • Plugin catalog claims are now smoke-verifiable.

Negative:

  • discover-plugins catalog must be kept in sync as plugins are added. Today there are 33 plugins (including this one); the catalog covers ~32. Drift remediation is a separate, mechanical task.

Neutral:

  • No new MCP tools, no new skills, no new agents. Documentation + smoke only.

Verification

bash plugins/ruflo-core/scripts/smoke.sh
# Expected: "10 passed, 0 failed"

Related

  • plugins/ruflo-ruvector/docs/adrs/0001-pin-ruvector-0.2.25.md
  • plugins/ruflo-agentdb/docs/adrs/0001-agentdb-optimization.md — namespace convention
  • plugins/ruflo-browser/docs/adrs/0001-browser-skills-architecture.md
  • plugins/ruflo-intelligence/docs/adrs/0001-intelligence-surface-completeness.md — 4-step pipeline
  • plugins/ruflo-adr/docs/adrs/0001-adr-plugin-pattern.md
  • plugins/ruflo-aidefence/docs/adrs/0001-aidefence-contract.md — 3-gate pattern
  • plugins/ruflo-autopilot/docs/adrs/0001-autopilot-contract.md — 270s cache-aware /loop
  • v3/@claude-flow/cli/ — the MCP server source backing this plugin

Implementation status

Plugin version v0.2.1 shipped and listed in marketplace.json. Source exists at plugins/ruflo-core/. Contract elements implemented: .mcp.json registers ruflo server via npx -y @claude-flow/cli@latest; plugin-catalog discovery skill present; 3 generalist agents shipped; smoke-as-contract gate defined in scripts/smoke.sh.