Beacon.sh launches cross-harness agent memory.

Beacon’s strongest idea is portability: agent memory should follow developers across tools instead of becoming another vendor silo. Its real test will be whether selective, reviewed memories outperform noisy transcript archives.

• –Captures prompts, tool calls, commands, file changes, approvals, MCP activity, and token usage in a shared event model.
• –MCP and Agent Skills let lessons learned in one harness transfer to others.
• –Local-first JSONL storage and MIT licensing make the telemetry layer inspectable and easier to integrate with existing security systems.
• –The same breadth creates governance risk: captured code, credentials, and agent actions demand strong retention, redaction, and approval controls.
• –Competes in an increasingly crowded agent-memory category, but differentiates through cross-harness telemetry and reusable skills.