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ruby-sdk/lib/mcp
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Filename Latest commit message Latest commit date
Koichi ITO 81e81c359e Validate Content-Type on POST requests 
## Motivation and Context

The MCP Streamable HTTP specification requires POST request bodies to
be JSON-RPC messages with `Content-Type: application/json`. The Ruby
SDK did not validate Content-Type, accepting requests with any or no
Content-Type. The Python SDK validates this and returns 415
Unsupported Media Type for non-JSON Content-Types.

## How Has This Been Tested?

Added tests for Content-Type validation:

- POST without Content-Type returns 415
- POST with `Content-Type: text/plain` returns 415
- POST with `Content-Type: application/json; charset=utf-8` succeeds

## Breaking Changes

POST requests without `Content-Type: application/json` now return
415 Unsupported Media Type. This is a spec compliance fix.
2026-04-08 19:40:55 +09:00
..
client Add MCP::Client::Stdio transport 2026-03-19 12:41:27 +09:00
prompt Support Ruby 2.7 - Ruby 3.1 2026-01-06 10:38:56 +09:00
resource Fix Resource::Contents#to_h to use correct property names per MCP spec 2026-02-19 13:50:10 +09:00
server Validate Content-Type on POST requests 2026-04-08 19:40:55 +09:00
tool Use symbolize_names: true in JSON.parse calls 2026-03-31 04:15:42 +09:00
transports Add a migration path for Server::Transports::StdioTransport 2025-06-10 16:27:22 +09:00
annotations.rb Extract MCP::Annotations into a dedicated file 2026-02-03 15:38:04 +09:00
client.rb Support completion/complete per MCP specification 2026-04-03 01:35:07 +09:00
configuration.rb Support Ruby 2.7 - Ruby 3.1 2026-01-06 10:38:56 +09:00
content.rb Add Content::EmbeddedResource class for embedded resource content type 2026-03-02 01:33:05 +09:00
icon.rb Support icons parameter 2025-12-30 05:35:22 +09:00
instrumentation.rb Support Ruby 2.7 - Ruby 3.1 2026-01-06 10:38:56 +09:00
logging_message_notification.rb logging_message_notification: Remove unused require 2026-02-05 16:05:08 -05:00
methods.rb Add Elicitation skeleton 2025-11-21 02:42:20 +09:00
progress.rb Support POST response SSE streams for server-to-client messages 2026-04-04 19:20:31 +09:00
prompt.rb Use autoload to defer loading of unused subsystems 2026-03-12 14:08:27 +09:00
resource.rb Use autoload to defer loading of unused subsystems 2026-03-12 14:08:27 +09:00
resource_template.rb Omit icons from responses when empty or nil 2026-01-12 09:46:45 +09:00
server.rb Support POST response SSE streams for server-to-client messages 2026-04-04 19:20:31 +09:00
server_context.rb Support POST response SSE streams for server-to-client messages 2026-04-04 19:20:31 +09:00
server_session.rb Support POST response SSE streams for server-to-client messages 2026-04-04 19:20:31 +09:00
string_utils.rb Fix ReDoS vulnerability in StringUtils#underscore 2026-01-09 01:14:52 +09:00
tool.rb Use autoload to defer loading of unused subsystems 2026-03-12 14:08:27 +09:00
transport.rb Support sampling/createMessage per MCP specification 2026-04-04 05:55:27 +09:00
version.rb Release 0.11.0 2026-04-06 02:35:49 +09:00