XERJ: autoindex + MCP so coding agents search folders without grep waste
At a glance
XERJ is an Apache-2.0 Rust single-binary AI-native search engine: `xerj autoindex` turns code/docs/logs/PDFs into ES-compatible indices; `xerj init` registers MCP + a short skill for Claude Code/Cursor; agents get passage search, hybrid retrieval, and namespaced memory instead of dumping whole files—trending hard on GitHub (~7k stars) with agent-oriented llms.txt. This workflow is listed under coding-agent, MCP, retrieval, context-efficiency, local-search.
Local-first Apache-2.0 CLI for Claude Code/Codex/Cursor: mcp-xray ranks bloated tool schemas, sync compresses CLAUDE.md↔AGENTS.md↔Cursor rules, and shield fails CI on leaked keys/prompt-injection/Trojan Unicode—claims large cuts in model-visible prompt size without API calls.
Local-first OSS DB/workspace where Claude Code/Codex/Cursor share durable records, docs, skills, and apps—writes that matter go through human review; Skill, MCP, OpenAPI, and ACP connections keep agents stateless and work durable.
Claustrum (alpha, .NET NativeAOT) is a harness-neutral conductor: an architect in Claude Code, Cursor, Copilot CLI, opencode, or desktop delegates builds/reviews/tests to agents on any other harness/model and gets one normalized JSON receipt. Two doors — `claustrum run` CLI and `claustrum mcp` stdio server. Parallel builders on git worktrees, budget ledger, backends doctor. Role-based routing (strong model for architect/reviewer, cheap for builders) without locking the pipeline to one vendor.
MCP-connected runtime QA maps critical flows and entry points, then re-tests the blast radius of each Claude Code/Cursor/Codex change against live Postgres/Kafka/APIs/MCP tools—contracts, authz, OWASP, errors—before merge, with self-heal when behavior changes on purpose.