> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lagerdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Version 0.16.0

> April 13, 2026

## <u>Features</u>

* **Lager MCP server** — a Model Context Protocol server now runs on the Lager Box on port 8100 (FastMCP, streamable-http), allowing AI agents to discover a bench and understand how its nets are wired to the DUT. The server has moved from the CLI to the box and is started automatically inside the Docker container.
* **Net metadata** — nets now support `description`, `dut_connection`, `test_hints`, and `tags` fields. New `lager nets` CLI commands and TUI flows let you edit this metadata interactively so AI agents (and humans) can reason about what each net is for.
* **Capability graph and heuristic engine** — a new engine maps test types to the nets available on a bench, giving agents a principled way to pick the right instrument for a given task.
* **Auto-generated MCP API reference** — the MCP API reference is now generated from driver introspection at Docker image build time. The build fails fast if a driver is renamed, so the agent-facing surface stays in sync with the code.

## <u>Improvements</u>

* Every MCP tool call is wired through an `@audited` decorator that records the call via `audit.log_tool_call`, giving downstream control planes a consistent audit trail.
* `quick_io` writes now pass through a `preflight_check` that enforces voltage, current, and dangerous-action constraints before touching hardware.
* The `bench.json` parser is now defensive: a single malformed entry no longer breaks `discover_bench`.
* MCP errors no longer return raw tracebacks to agents. `NetType()` inputs are validated against the enum.
* `plan_firmware_test` uses a regex-based pattern split instead of the previous unsafe `get_pattern` split.
* New integration test `test_agent_loop` plus unit tests for the bench loader, capability graph, heuristic engine, safety preflight, and MCP schemas.

## <u>Security</u>

* The `run_lager` MCP passthrough tool is now gated behind the `LAGER_MCP_ALLOW_RUN_LAGER` environment flag and is **off by default**. Operators must opt in explicitly before agents can invoke arbitrary `lager` commands on a box.

## <u>Installation</u>

To install this version:

```bash theme={null}
pip install lager-cli==0.16.0
```

To upgrade from a previous version:

```bash theme={null}
pip install --upgrade lager-cli
```

## Resources

[View Release on PyPI](https://pypi.org/project/lager-cli/0.16.0/)