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Fig. 02AI-native exam preparation platform

An agentic content platform. LLMs ingest, structure and serve exam material through a guarded MCP surface.

› What it does

  • Spring AI MCP server with 24 content tools behind API-key auth. Idempotent natural-key upserts make LLM ingestion safe to re-run.
  • LangGraph agent with planning tools, parallel read-only subagents, human approval before writes, token budgets and Postgres-checkpointed resumable runs.
  • Permission-scoped tools, prompt-injection guards, streamed run events, and Langfuse + OpenTelemetry tracing.
  • Spring Boot, Next.js SSR, Elasticsearch and Redis on an Ansible-deployed VPS with Prometheus, Loki and Grafana.
Year
2026 — Now
Role
Solo · architecture to ops
Type
AI-native exam preparation platform
Stack
Spring AIMCPLangGraphLangfuseNext.jsPostgreSQLElasticsearchRedisAnsible

› System · Blueprint Rev A

Next.js SSR01
LangGraph agent02
Human-in-the-loop gate03
Spring AI MCP · 24 tools04
Postgres + Elastic05
Grafana · Loki · Langfuse06