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Load Lock
Load Lock is a machine-wide counting semaphore coordinating heavy work across parallel coding agents.
Load lock is a machine-wide heavy-work budget tool designed for parallel coding agents operating on the same machine. It provides a shared counting semaphore so that separate sessions, repositories, and git worktrees avoid cache thrashing and core starvation during builds and test suites. Agents acquire a permit before heavy work, continue light work while queued, and receive a FIFO offer when capacity frees. The system features atomic operations, real process-lifecycle cleanup, crash recovery, and notifications. It supports integration with OpenCode, Claude Code, Codex CLI, and other systems via a generic stdio server and command line interface.
Load Lock at a glance
- Best for: Software engineer
- Runs on: Linux, macOS, Windows, CLI, self-hosted, open source
- Pricing: Free
- Released: October 2026
- Category: AI coding tool
- Website: github.com/aron98/load-lock
Key features
- Machine-wide capacity pool for all coding agents
- Atomic acquire-or-queue daemon event loop
- FIFO offers with opaque claim tokens
- Real process-lifecycle cleanup preventing orphaned permits
- Crash-safe design with journal reconciliation
- Honest notifications and idle wakeups
- Resource-aware inspection of CPU and memory limits
Use it for
- Coordinate heavy builds across multiple parallel coding sessions
- Prevent parallel test suites from thrashing system caches
- Manage shared resource budgets for automated coding agents
- Queue resource-intensive operations without command wrapping
Alternatives to Load Lock
- Hlock — Pins entire AI agent setups into a portable file to share and run anywhere.
- claude-mem — It shares persistent, searchable agent memory across sessions and devices.
- Semble — It indexes code in milliseconds on CPU with zero external services required.
- Orbit — Durable task queues and audit logs keep agent work traceable and disciplined.
- jcode — Optimized for massive parallelism with low memory usage per session.
- Engram — Single Go binary with zero dependencies and built-in full-text search.
- Invariant — Persistent isolated Linux environments and parallel coding agent experiments.
- Weft — It enables safe parallel coding agent work without file locks.
- Alcubi — Run multiple coding agents concurrently without managing live sessions.
- OpenCode — Works with 75+ model providers, local models, and existing subscriptions
- LMCache — It stores, compresses, searches, and reuses KV caches across clusters.
- jevgrep — Reduces coding agent costs by providing targeted, relevant repository context.
All Load Lock alternatives