* ⬆️ Upgrade MCP SDK to v2 and remove HTTP sessions
MCP's per-request protocol removes the need to retain HTTP sessions.
Use the v2 handler to manage each request's transport and lifecycle,
so requests can reach any server instance without session affinity
or the workaround that adopts sessions through private SDK fields.
Keep legacy SSE support and the shared plugin and Redis bridges.
Remove the shared expiry checker, including legacy SSE idle expiry;
SSE connections now remain until disconnection or server shutdown.
Verify stateless requests, token isolation, and legacy compatibility.
Resolves#11827
AI-assisted-by: gpt-6-astra
* 🔥 Remove legacy MCP SSE support
Use Streamable HTTP as the sole MCP client transport so the server no
longer needs a separate SSE connection registry or lifecycle.
Remove /sse and /messages, their nginx routes, and the server-legacy
dependency. Legacy SSE clients must switch to /mcp; older Streamable
HTTP clients remain supported. Document the migration and verify that
the removed endpoints return 404.
Resolves#11846
AI-assisted-by: gpt-6-astra
* ⬆️ Update devenv dependencies
Update Node.js, OpenCode, clj-kondo, Babashka, Pixi, GitHub CLI, uv,
and Serena to their current stable releases.
AI-assisted-by: gpt-5.6-sol
* ⬆️ Update devenv to Java 27
Use Zulu JDK 27 in the development image for compatibility testing.
Update the official checksums for both supported architectures.
AI-assisted-by: gpt-5.6-sol
* 🐳 Replace MinIO with RustFS in devenv
Run RustFS as the development S3 service and wait for its health check.
Install a pinned AWS CLI with checksums and use it to create the bucket
idempotently from each backend entry point.
Keep the old MinIO volume untouched and use a new RustFS volume.
AI-assisted-by: gpt-5.6-sol
* 🐳 Replace MailCatcher with persistent Mailpit
Run Mailpit as the devenv SMTP sink while preserving mailer:1025 and the
localhost:1080 UI.
Store its SQLite inbox in a named volume and wait for the readiness
endpoint before starting runtime containers. Bind the web UI to loopback so
development emails stay local.
AI-assisted-by: gpt-5.6-sol
* ⬆️ Update Node.js to 24.21.0
Align the host NVM version with the Node.js version used by devenv.
AI-assisted-by: gpt-5.6-sol
* ⬆️ Update devenv to PostgreSQL 18.6
Run PostgreSQL 18 with its versioned volume layout and a TCP readiness
check that ignores the temporary initialization server.
Install the matching client, create penpot_nexus, and preserve the old
PostgreSQL 16 volume for rollback or logical migration.
AI-assisted-by: gpt-5.6-sol
* 🐳 Expose RustFS ports in devenv
Publish the RustFS S3 API and management console on localhost port 9000
and 9001.
Keep both bindings on loopback so object storage is not exposed to the local
network.
AI-assisted-by: gpt-5.6-sol
* 🐳 Install standalone pnpm in devenv
Install pnpm 12.5.0 from architecture-specific release archives and
verify their published checksums.
Remove the Corepack setup while allowing pnpm to honor the project
packageManager pins.
AI-assisted-by: gpt-5.6-sol
* 🔥 Remove corepack, use system pnpm everywhere
Corepack is gone from Node 25+, so every `corepack enable` call
fails. pnpm now ships as a system binary (devenv, CI runners and
Docker images install it directly) and auto-downloads the version
pinned in `packageManager` on mismatch.
Scripts, workflows and Dockerfiles call `pnpm` straight away; the
three deploy workflows use a single `pnpm/setup@v2` step; and the
new `scripts/sync-pnpm-version` stamps all 35 `packageManager`
fields from the system pnpm, replacing the `corepack use` sweep.
AI-assisted-by: muse-spark-1.3-contributor
* 🐛 Fix exporter watch missing render-wasm build step
The exporter watch compiled CLJS requiring the generated
src/app/wasm/shared.js, which only render-wasm/build export
produces. Without it shadow-cljs failed with a cryptic missing
./shared.js dependency. Run build:wasm before watching, as
the frontend watch:app and exporter scripts/build already do.
AI-assisted-by: muse-spark-1.3-contributor
* 🔧 Add opencode V2 support and adapt plugins
Register the penpot tools for both opencode V1 (server())
and V2 (setup() with JSON Schema inputs) from a single
dependency-free plugin file, sharing the psql and
paren-repair runners between both paths.
Install the opencode2 binary side-by-side with V1 in the
devenv image and document the dual registration in the
paren-repair and psql memories.
AI-assisted-by: muse-spark-1.3-contributor
* ⬆️ Update pnpm and opencode
Run `corepack use pnpm@next-12` (resolved to 12.3.4) on every directory
with a package.json: the repo root, the 11 module workspaces, and all
submodules. Every packageManager field now carries the same pinned
version and hash; the root and backend move off 11.20.0.
Fix the composable-test-suite workspace config (esbuild allowBuilds
placeholder left by pnpm 12) so its install passes, and add the missing
packageManager fields to frontend/packages/ui and mcp/packages/plugin,
since corepack only updates existing fields.
Document the canonical update procedure in
.serena/memories/workflow/updating-pnpm.md.
AI-assisted-by: omen-alpha
* ⬆️ Update pnpm and its deps
* ⬆️ Update JVM dependencies in backend and common
Update several JVM dependencies across backend and common:
- passay 1.6.6 -> 2.0.0 (package reorg, ctor-based rules)
- siphash 2.0.0 -> 3.0.0 (SipHasher* renamed to SipHash*)
- lettuce-core, guava, sqlite-jdbc, jsoup, lz4-java, markdown-clj,
awssdk s3/sts, selmer, jackson-core/databind, shadow-cljs
Adapt passay validation to the new API (moved packages, constructor
configuration) and siphash to the renamed classes. Add tests for
password validation and UUID advisory-lock hashing.
AI-assisted-by: deepseek-v4-flash
* ⬆️ Update node on docker images
* 📎 Minor fixes related to pnpm12 compatibility
* 📎 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
