AI agents using Markdown + RAG score 0% recall on "why?" questions. The same agents using Right Reasons score 100%. Tested across 48 sessions with 2
AI agents using Markdown + RAG score 0% recall on "why?" questions. The same agents using Right Reasons score 100%. Tested across 48 sessions with 2 independent
Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| list_objects | List objects filtered by layer, type, search, validation status |
| get_object | Full details of a single object |
| list_relations | List relations with assertion explanations |
| get_relation_assertion | Full assertion history for a relation |
| traverse_graph | Navigate the ontology graph — trace "why?" chains |
| get_schema_info | All object types (14) and relation types (20) |
| get_authentication_trail | Audit trail: who proposed, confirmed, validated |
| get_explanation_packet | Complete context for an object in one call |
| query_sql | Read-only SQL for advanced queries |
| create_session | Start an EPICAL intake session |
| propose_object | Stage a candidate object (requires authentication before promotion) |
| propose_relation | Stage a candidate relation |
| promote_candidate | Promote authenticated candidate to canonical |
| generate_ops_contract | Auto-generate reasoning envelope from ontology for external work |
| get_ops_contract | Retrieve contract with resolved references |
| list_ops_contracts | List contracts by status or kind |
| dolt_status | Working set status (like git status) |
| dolt_diff | Row-level diffs between commits (like git diff) |
| dolt_commit | Commit changes with message |
{
"mcpServers": {
"right-reasons": {
"command": "/path/to/mcp-server/.venv/bin/right-reasons-mcp",
"env": {
"RR_DOLT_HOST": "127.0.0.1",
"RR_DOLT_PORT": "3307",
"RR_DOLT_DATABASE": "right_reasons"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| RR_DOLT_HOST | Declared in the maintainer’s client configuration. | Check documentation |
| RR_DOLT_PORT | Declared in the maintainer’s client configuration. | Check documentation |
| RR_DOLT_DATABASE | Declared in the maintainer’s client configuration. | Check documentation |
Inspect PostgreSQL schemas and run read-only queries with the archived MCP reference server. Review its maintenance status before choosing it.
Connect the Notion MCP server to search workspace content and work with pages and databases through Notion’s hosted OAuth service.
Use the Supabase MCP server to inspect database schemas, query project data and retrieve docs through a project-scoped connection.
Query, modify and analyse local SQLite databases in conversation — the fastest way to chat with a data file.
Metabase ships its own MCP endpoint — search your BI content, build and run queries, and save questions and dashboards without leaving the chat.
Official MongoDB server covering data, schemas and Atlas management — from find queries to spinning up clusters.