Website | Documentation | Changelog
Sediment is an open-source, self-hosted evidence store for coding agents.
Capture model calls, code changes, developer decisions, and check results on your infrastructure.
- Evaluate agent work: compare models by recorded decisions, code retention, and automated checks.
- Reuse context: give agents selected messages, tool calls, and results from a previous Session.
- Build training datasets: export examples for fine-tuning, preference training, and reinforcement learning.
On macOS with Homebrew, Debian, or Ubuntu:
curl -fsSL https://sediment.so/install.sh | sh
sediment serverIf the installer prints a PATH instruction, run it before sediment server.
Sediment manages a local PostgreSQL database. Follow the Quickstart to connect an agent and verify capture.
Integrations: Claude Code, Codex, Cursor, pi, and Copilot Chat. Available signals vary by agent. Deploy a shared server.
Architecture and network boundaries · Captured data and privacy
Contributing · Issues · Security
AGPL-3.0. Harness shims under shims/ use the
MIT license.