spiculedata/saiku

Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite.

About the project

Saiku is an open-source semantic layer that represents data as analytical cubes for browser exploration, SQL queries, dashboards, and AI-agent access. It is for analysts and applications that need to query structured business data through Mondrian, Apache Calcite, REST, or MCP. The catalogue instruction helps agents work with Saiku.

Latest release v4.8.0 — Saiku 4.8.0 · 15 Sept 2026

10 files for Claude Code, Codex, GitHub Copilot and OpenCode: saiku CLAUDE.md, cut-release, rebuild-launcher, saiku copilot-instructions.md and 6 more — 13,407 tokens loaded in every session.

Open on GitHub saiku.bi

Instructions

saiku CLAUDE.md CLAUDE.md A 89 tok
saiku copilot-instructions.md .github/copilot-instructions.md A 634 tok
saiku AGENTS.md AGENTS.md D 12,684 tok

Settings

saiku .claude/settings.json D —

Hooks

PreToolUse .claude/settings.json A —

Skills

cut-release .agents/skills/cut-release/SKILL.md A 49 tok
rebuild-launcher .agents/skills/rebuild-launcher/SKILL.md A 65 tok

Commands

add-rest-endpoint .github/prompts/add-rest-endpoint.prompt.md A 19 tok
fix-bug .github/prompts/fix-bug.prompt.md A 14 tok
review .github/prompts/review.md A 13 tok

These files are spiculedata/saiku's own configuration — they tell Claude Code, Codex, GitHub Copilot and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.