Ctxnest
CtxNest is the local body your AI coding agent has been missing.
Brain — a markdown knowledge vault with SQLite FTS5 search, git-backed versioning, and cross-project context. Your agent reads from it directly instead of you copy-pasting docs into every chat.
Hands — declare commands in a ctxnest.json, CtxNest exposes them as sandboxed MCP tools. No shell, locked working directory, clean environment, optional human approval before anything runs. The agent can only do what you declared.
Eyes — stdout capture, Brain diffs, and journal_append so the agent writes what it learned back into the vault. Next session starts smarter than the last.
46 MCP tools. Works with Claude Code, Cursor, Gemini, Codex. 100% local, 0% egress. Your data never leaves your SSD.
Server Config
{
"mcpServers": {
"ctxnest": {
"command": "npx",
"args": [
"-y",
"ctxnest-mcp"
]
}
}
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