* 📎 Ignore .iml files (IntelliJ module files)
* 🎉 Enable multi-instance horizontal scaling for MCP server
Allow the MCP server to run as multiple instances behind a plain
round-robin load balancer, removing the previous requirement that a
user's plugin WebSocket and MCP client connection terminate on the same
instance. Behaviour is unchanged when run as a single instance or
without Redis.
Cross-instance MCP sessions: when a request arrives with an
mcp-session-id that was initialised on another instance, the session is
adopted locally instead of rejected. The user token is read from the
query parameter (present on every request, as the configured endpoint
URL is never rewritten), so no shared session store is needed; the
transport is pre-initialised so the SDK's validateSession() accepts it.
Cross-instance task routing: when a Redis URI is configured in
multi-user mode, plugin task requests are routed via Redis pub/sub keyed
by user token. The instance holding a plugin's WebSocket subscribes to
that token's request channel; any instance handling a tool call
publishes the request and awaits the response on a per-request channel.
RedisBridge is a pure transport for the existing serialised
PluginTaskRequest/Response objects. PluginTask is split into an abstract
base plus a local (promise-backed) PluginTask and a RemotePluginTask
whose resolve/reject publish the outcome back over Redis, so the
existing local dispatch and response-correlation paths are reused
unchanged on the executing instance.
Refs #10000
* ✨ Bound the size of plugin task responses
When using the integrated remote MCP server, bound response size.
All responses are passed to LLMs, which themselves impose bounds.
This is a measure to bound memory usage in the centrally provided
MCP server.
GitHub #9493
* ✨ Bound parallelism in ExportShapeTool
Use an integer semaphore to bound parallel requests to this
memory-intensive tool, thus bounding memory usage.
GitHub #9493
* ✨ Add (manual) integration test script for ExportShapeTool parallelism
Add dependency tsx to facilitate executions.
GitHub #9493
* ✨ Make number of parallel export requests configurable in ExportShapeTool
Use env var PENPOT_MCP_EXPORT_SHAPE_MAX_PARALLEL_REQUESTS to configure
the maximum number of requests in multi-user mode (default 0, no limit).
New tool to evaluate ClojureScript expressions by connecting to the
nREPL service already provided in devenv.
Add dependency 'nrepl-client' and a corresponding client class
as well as types to support this.
Add a new environment variable for 'devenv mode', which enables
the new tool (PENPOT_MCP_DEVENV).
* ✨ Improve MCP server logging
Log only fingerprints of user tokens
* ✨ Add Loki transport support to MCP server logger
Loki logging is enabled iff PENPOT_LOGGERS_LOKI_URI is non-empty.
File logging is now enabled iff PENPOT_MCP_LOG_DIR is set to a non-empty value
(previously defaulted to the "logs" directory when unset).
GitHub #9415
* 🎉 Prepare npm package for MCP server
* 🐛 Re-establish Windows compatibility of MCP server build script
Use node instead of cp to copy files
* ✨ Set version for MCP npm tarball based on git tag
* Add scripts/set-version to set the version in package.json
based on git describe information
* Add scripts/pack to perform the packaging
