Everything your agents need to stay in context.

Vaults

Connect a GitHub repo and ceiling automatically indexes every file into a structured knowledge base. Pages are organized by entity (classes, functions, modules), concept, and source — with full content and embedding-based search.

Automatic indexing

Push to GitHub and ceiling re-indexes changed files. Embeddings are computed incrementally, so only changed chunks are re-processed. Your vault stays fresh without manual effort.

Hybrid search

Every search runs both semantic (vector cosine) and keyword (BM25-style) retrieval, then fuses results by rank. Returns ranked passages with source path, heading trail, and page number so agents can cite precisely.

Context pages

Each vault has a living context page with structured sections: Project Summary, Active Priorities, Constraints, Recent Decisions, Known Risks, and Read First. Agents update these sections as they work.

Context subpages

Deeper history lives in subpages: architecture, decisions, security, incidents, open questions, and change log. Agents append timestamped entries via update_context_subpage — building a permanent audit trail.

Session summaries

At the end of every coding session your agent calls save_session_summary. The summary is stored as a wiki page in the vault, so future sessions have full history of what was done and why.

One-command install

Run npx ceiling-mcp, paste your API key, and ceiling is wired into Claude Code and Cursor. No manual JSON editing. The installer detects which editors are present and writes the correct config for each.

get_task_context

The most important tool. Given a task description, it builds a context pack: project summary, relevant wiki pages, recent decisions, related source passages, and constraints. Call it at the start of every session.

Full tool suite

list_projects, select_project, search, get_page, list_pages, get_task_context, update_context_page, compact_context_page, update_context_subpage, save_session_summary — everything an agent needs to stay oriented.

Deep research reports

Run a research query grounded in your vault and the web. Ceiling searches the vault for relevant pages, optionally fetches live web results, and synthesizes a cited report stored persistently for your team.