# pmcp Desktop Extension by paiml MCP Server

High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## Status

Pod has not dialled pmcp Desktop Extension by paiml yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

## Reviewed GitHub reports

**27 GitHub reports passed Pod's relevance review.** This can include external user reports, maintainer-confirmed bugs, and concrete feature gaps. It is evidence to inspect, not a count of distinct defects. Showing 12.

### Most discussed

### cargo pmcp deploy init --target-type google-cloud-run: scaffold .pmcp/deploy.toml with [target] + [gcp] + [server] + [environment] minimum-viable schema

## Problem

`cargo pmcp deploy init --target-type google-cloud-run` (`src/deployment/targets/google_cloud_run/mod.rs` line ~99) currently scaffolds three files — `Dockerfile`, `.dockerignore`, and `cloudbuild.yaml` — but does **not** emit a `.pmcp/deploy.toml`. As a result, app-level configuration (environment variables, region, Cloud Run service name, memory/CPU sizing, ingress controls, `allow-unauthenticated`) has no declarative path. Operators who need to wire these values to a deployed serv

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/260) · 2026-05-19 · open · 2 comments

### cargo pmcp deploy --target-type google-cloud-run: switch default runtime base to gcr.io/distroless/cc-debian12 with opt-out [runtime] base knob

## Problem

The generated Dockerfile produced by `cargo pmcp deploy --target-type google-cloud-run` (source: `cargo-pmcp/src/deployment/targets/google_cloud_run/dockerfile.rs`) uses `FROM debian:bookworm-slim` as the runtime stage and apt-installs `ca-certificates` and `libssl3`, producing runtime images on the order of ~80 MB. The runtime layer includes a full shell (`bash`/`sh`), apt, and a system package manager — none of which are required for a Rust HTTP server and all of which add to the a

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/259) · 2026-05-19 · open · 2 comments

### cargo pmcp deploy init --target-type google-cloud-run: support multi-crate isolated layouts via opt-in [layout] block in deploy.toml

## Problem

`cargo pmcp deploy init --target-type google-cloud-run` emits one of two Dockerfile templates depending on detected layout, and **both templates fail on multi-crate isolated layouts** — for different reasons. The workspace template (`cargo-pmcp/src/deployment/targets/google_cloud_run/dockerfile.rs` line ~14) uses `COPY . .` followed by a `cargo metadata` regex-based step that excludes packages with "lambda" in their name. On a multi-crate isolated layout this **over-bundles**: every 

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/258) · 2026-05-19 · open · 2 comments

### feat: Add OAuth client-side middleware with token injection and auto-refresh

## Problem

The SDK has comprehensive server-side OAuth support (bearer token validation, scope middleware) but lacks **client-side OAuth middleware** for:
- Automatic token injection into outgoing requests
- 401/403 detection and automatic token refresh
- Retry logic after re-authentication
- Token lifecycle management (expiry tracking, proactive refresh)

This is critical for MCP clients connecting to OAuth-protected servers. The TypeScript SDK provides `withOAuth` for this use case.

## Propo

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/83) · 2025-10-08 · closed · 2 comments

### feat: Add HttpMiddleware trait for transport-level HTTP concerns

## Problem

The current middleware system operates at the Protocol/JSON-RPC layer, which misses HTTP-specific concerns like:
- Header injection (auth tokens, correlation IDs, custom headers)
- Request/response logging with header inclusion
- Status code-based conditionals (retry on 429, circuit break on 503)
- HTTP-specific transformations before reaching Protocol layer

The TypeScript SDK provides fetch-wrapping middleware for these concerns. We need equivalent ergonomics.

## Proposed Solution

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/82) · 2025-10-08 · closed · 2 comments

### Most recent

### StdioTransport: stdin EOF disables stdout, dropping responses to already-accepted requests

# StdioTransport: stdin EOF disables stdout, dropping responses to already-accepted requests

## Summary

`StdioTransport` uses a single `closed` flag for two independent streams. Reaching EOF on
**stdin** sets it, and `send()` then refuses every **stdout** write. A client that pipes a
batch of requests and closes stdin — the normal shape of a one-shot MCP session — never
receives the responses to requests the server already accepted and answered.

## Where

`src/shared/stdio.rs` (v2.17.0):

```

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/316) · 2026-07-31 · closed · outside contributor · 0 comments

### pmcp-workbook-server: 2 stale golden-tool tests quarantined from workspace-test gate

## Summary

Two tests in `pmcp-workbook-server` fail against the committed golden bundle and are **quarantined** from the `workspace-test` CI gate (`--exclude pmcp-workbook-server`) so unrelated PRs can merge. They need workbook-domain review.

## Failing tests

`crates/pmcp-workbook-server/src/assemble.rs`:
- `assemble::tests::build_server_from_golden_registers_five_tools` (panics at `:130`)
- `assemble::tests::matching_bundle_id_succeeds` (panics at `:142`)

Both assert the server built from t

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/293) · 2026-07-05 · open · 0 comments

### wasm support for pmcp-macros

Love that this project supports webassembly though I notice that the [`WasmMcpServer` uses `WasmTool`, `WasmResource` and `WasmPrompt`](https://github.com/paiml/rust-mcp-sdk/blob/9edc4b4974c02f00d7b7d097a03aa401271db8ae/src/server/wasm_server.rs#L328-L358) rather than [`ToolHandler`, `PromptHandler` and `ResourceHandler`](https://github.com/paiml/rust-mcp-sdk/blob/9edc4b4974c02f00d7b7d097a03aa401271db8ae/src/server/mod.rs#L221-L270). I've not spent a ton of time digging into the macro generation

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/278) · 2026-06-11 · open · external user · 0 comments

### Phase 75 SATD: cargo-pmcp commands roadmap (landing build, dev watch, add scaffolding)

## Outstanding SATDs from Phase 75 Plan 75-04 triage (D-04)

Filed as part of Phase 75 SATD triage. Replaces 4 `// TODO: Implement ...` comments in `cargo-pmcp/src/commands/` with `// See #NNN —` references after this issue is filed.

### Outstanding follow-ups

- [ ] `cargo-pmcp/src/commands/landing/mod.rs:92` — Implement the `landing build` subcommand (currently prints "Build command coming in Phase 1!" and asks the user to fall back to `npm run build`).
- [ ] `cargo-pmcp/src/commands/landing/

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/248) · 2026-04-25 · closed · 0 comments

### Phase 75 SATD: wire aws-sdk-secretsmanager into AWS secrets provider

## Outstanding SATDs from Phase 75 Plan 75-04 triage (D-04)

Filed as part of Phase 75 SATD triage. Replaces 4 `// TODO: Implement with aws-sdk-secretsmanager` comments in `cargo-pmcp/src/secrets/providers/aws.rs` with `// See #NNN —` references after this issue is filed.

### Outstanding follow-ups

- [ ] `cargo-pmcp/src/secrets/providers/aws.rs:96` — `list()`: integrate `aws-sdk-secretsmanager` `list_secrets` API; remove the `Err(SecretError::ProviderError { ... "not yet implemented" })` stub.

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/247) · 2026-04-25 · closed · 0 comments

### Stdio example not working

Try example from README.md in the project root. Server started but not respond.

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/116) · 2025-11-27 · open · external user · 0 comments

### RFC: cargo-pmcp - Production-Grade MCP Server Development Toolkit

# RFC: cargo-pmcp - Production-Grade MCP Server Development Toolkit

**Type:** RFC / Feature Request
**Labels:** `enhancement`, `RFC`, `tooling`, `cargo-pmcp`, `discussion`

---

## Summary

We propose **`cargo-pmcp`** - a batteries-included toolkit for building production-grade MCP servers in Rust. This RFC is based on real-world experience building **6 production MCP servers** and incorporates proven patterns for security, scalability, and developer experience.

**Goal:** Make `cargo-pmcp` the

[Read the thread](https://github.com/paiml/rust-mcp-sdk/issues/98) · 2025-10-23 · closed · 0 comments

[See all 19 reports Pod holds for pmcp Desktop Extension by paiml](/mcp/pmcp-desktop-extension-by-paiml/issues) — of 27 qualified upstream.

## Firsthand observations

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## For agents

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