Commit graph csharp-sdk/src/ModelContextProtocol.Core/Protocol
Author SHA1 Message Date
Stephen Halter
d6b1615988
Follow-ups to #1610: de-draft 2026-07-28 terminology, renumber error codes, ProtocolVersion floor (#1671) 2026-06-25 14:07:52 -07:00
Copilot
90c853103d
Remove ExperimentalAttribute from official Extensions/Tasks/MRTR APIs and align MCPEXP001 usage (#1642) 2026-06-25 13:47:14 -07:00
Stephen Halter
6c323e783b
Default draft protocol support: sessionless + handshake-less (SEP-2575 + SEP-2567) (#1610) 2026-06-23 21:24:22 -07:00
Copilot
3368bb7349
Use TimeToLive (TimeSpan?) instead of TtlMs (long?) in public APIs (#1644)
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: PranavSenthilnathan <12225508+PranavSenthilnathan@users.noreply.github.com>
Co-authored-by: halter73 <54385+halter73@users.noreply.github.com>
Co-authored-by: Pranav Senthilnathan <pranas@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-23 09:12:15 -07:00
Tarek Mahmoud Sayed
8ddb3cc36f
Obsolete Roots, Sampling, and Logging surface area per SEP-2577 (#1651)
Co-authored-by: Tarek Mahmoud Sayed <tarekms@ntdev.microsoft.com>
2026-06-22 10:24:50 -07:00
Jayaraman Venkatesan
0663b7c878
Relax outputSchema to any JSON Schema 2020-12 document per SEP-2106 (#1568)
Co-authored-by: Mike Kistler <mikekistler@microsoft.com>
2026-06-16 15:02:04 -07:00
Tarek Mahmoud Sayed
c021d0a4f8
Add SEP-2549 caching hints (ttlMs and cacheScope) to cacheable results (#1623)
Co-authored-by: Tarek Mahmoud Sayed <tarekms@ntdev.microsoft.com>
2026-06-15 14:44:01 -07:00
Pranav Senthilnathan
dbb7a20176
Implement SEP-2663 Tasks Extension (#1579)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-11 13:10:45 -07:00
DragonFSKY
df0c102d75
Require Tool inputSchema during deserialization (#1600) 2026-06-05 16:54:07 -07:00
Tarek Mahmoud Sayed
ed19286a08
Align x-mcp-header implementation with SEP-2243 spec clarifications (#1619)
Co-authored-by: Tarek Mahmoud Sayed <tarekms@ntdev.microsoft.com>
2026-06-05 15:45:08 -07:00
Stephen Halter
f6dbe4372f
Multi Round-Trip Requests (MRTR) (#1458) 2026-06-03 16:19:31 -07:00
Mike Kistler
b8c4d951ec
Implementation for SEP-2243 Http Standardization (#1553)
Co-authored-by: Tarek Mahmoud Sayed <tarekms@microsoft.com>
Co-authored-by: Tarek Mahmoud Sayed <tarekms@ntdev.microsoft.com>
Co-authored-by: Tarek Mahmoud Sayed <10833894+tarekgh@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-14 15:39:37 -07:00
Copilot
e700951bd8
docs: align roots terminology with MCP spec clarification (#1469)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-03-27 07:25:45 -04:00
Stephen Toub
b965a7eca6
Add client completion notification and details (#1368)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-03-02 09:17:22 -05:00
Copilot
3cc4863fc1
Fix XML documentation spelling, grammar, and correctness issues across SDK (#1372)
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-23 23:56:22 -05:00
Copilot
ce2a5e4a4b
Fix CreateMessageRequestParams.Metadata type to JsonObject (#1354)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
2026-02-23 18:08:03 -05:00
Copilot
0a0a575a3d
Normalize CallToolResult.StructuredContent to JsonElement? (#1357)
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Co-authored-by: Stephen Toub <stoub@microsoft.com>
2026-02-23 18:04:09 -05:00
Copilot
774a1dba35
Fix base64 deserialization when JSON encoder escapes forward slashes (#1342)
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2026-02-23 14:20:25 -05:00
Copilot
74622d0c9c
Remove server back-references from protocol DTO types (#1345)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
2026-02-23 14:17:54 -05:00
Copilot
571e4dc127
Make LoggingMessageNotificationParams.Data required per MCP spec (#1353)
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2026-02-23 11:37:35 -05:00
Copilot
9b5d0fe80a
Make Tool.Name required to match other protocol types (#1351)
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2026-02-23 11:33:01 -05:00
Copilot
f241b4aafa
Clarify null semantics in ToolAnnotations hint property docs (#1346) 2026-02-22 22:52:22 -08:00
Copilot
d429b0bf64
Fix _meta properties to use JsonObject (#1341)
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2026-02-21 07:54:06 -05:00
Copilot
c2aa6a5123
Add Extensions support to ClientCapabilities and ServerCapabilities (#1317)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-21 00:08:20 -08:00
Copilot
4648d3e8e2
Make UrlElicitationRequiredErrorData.Elicitations consistent with other Protocol DTOs (#1335)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-20 23:12:16 -05:00
Copilot
5c35ea9207
Replace concrete collection types with interfaces in public API surface (#1326)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-19 19:48:45 -08:00
Copilot
539481f999
Validate mimeType in ImageContentBlock.FromBytes and AudioContentBlock.FromBytes (#1321)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-20 03:47:08 +00:00
Copilot
3727dc4aaa
Omit null mimeType from ResourceContents JSON serialization (#1325)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
Co-authored-by: Stephen Toub <stoub@microsoft.com>
2026-02-20 03:46:56 +00:00
Copilot
54283a8590
Add missing Title and Icons properties to ResourceLinkBlock (#1320)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-20 03:46:45 +00:00
Copilot
80b1ad21d7
Use ReadOnlyMemory<byte> for binary data to eliminate UTF-16 transcoding (#1070)
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Co-authored-by: ericstj <8918108+ericstj@users.noreply.github.com>
Co-authored-by: Eric StJohn <ericstj@microsoft.com>
2026-02-19 14:08:05 -08:00
Mackinnon Buck
cc6ef5b926
Hide experimental types from external source generators using internal property pattern (#1301) 2026-02-19 07:27:30 -08:00
Copilot
ec4c732632
Add validation and error signaling guidance to MCP tool XML docs (#1275)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-17 19:45:48 -05:00
Copilot
6a38242fc2
Clarify request-scoped tool semantics in CreateMessageRequestParams (#1295)
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-17 16:05:01 -05:00
Copilot
43a302ffa9
Align sampling specification XML docs with spec revision d165cd6 (#1293)
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2026-02-17 16:02:14 -05:00
Copilot
49fbc513f0
Align InitializeResult.instructions XML docs with latest MCP spec guidance (#1290)
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
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Co-authored-by: Stephen Toub <stoub@microsoft.com>
Co-authored-by: Stephen Halter <halter73@gmail.com>
2026-02-17 15:39:50 -05:00
Copilot
392e47ea29
Document https:// direct-fetch provision in ReadResourceRequestParams (#1296)
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2026-02-17 09:30:11 -05:00
Stephen Toub
27b5eb8031
Bring up to 0.1.13 conformance (#1254) 2026-02-10 08:33:52 -08:00
Copilot
712068b161
Seal public Protocol reference types to prevent external inheritance (#1232)
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Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
2026-02-02 10:15:20 -05:00
Stephen Halter
7d48d3922c
Add support for message-level filters to McpServer (#1207) 2026-01-30 15:19:00 -08:00
Copilot
ee8c485d41
Add Trace-level logging for JSON-RPC payloads in transports (#1191) 2026-01-29 11:26:33 -08:00
Eirik Tsarpalis
10e4f5b20f
Implement MCP task support (SEP-1686) (#1170)
Co-authored-by: Stephen Halter <halter73@gmail.com>
2026-01-27 19:21:02 -08:00
Copilot
46d30444a8
Fix ToJsonObject serialization failure with anonymous types and add support for custom JsonSerializerOptions (#1113)
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Co-authored-by: Stephen Toub <stoub@microsoft.com>
2026-01-20 11:21:11 +02:00
Copilot
2bc105b612
Optimize JsonRpcMessage deserialization with single-pass parsing (#1138)
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2026-01-13 11:55:49 -05:00
Copilot
1b846cb76c
Add missing exception documentation to public API surface (#1103)
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Co-authored-by: Stephen Toub <stoub@microsoft.com>
2025-12-15 12:51:09 -05:00
Copilot
3aedd3cd9a
Fix Icon.Theme documentation to match MCP specification (#1090)
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Co-authored-by: Stephen Toub <stoub@microsoft.com>
2025-12-12 16:33:51 +02:00
Copilot
1b52ddacba
Add DebuggerDisplay attributes to Protocol types (#1068)
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Co-authored-by: Stephen Halter <halter73@gmail.com>
2025-12-05 15:09:46 -08:00
Stephen Halter
970207989e
Fall back to well-known URL in client if 401 response is missing resource_metadata parameter (#1054) 2025-12-05 14:12:51 -08:00
Stephen Toub
4a84412331
Add McpClient/Session methods using .Protocol types (#1063) 2025-12-05 13:45:12 -05:00
Stephen Halter
ae17ba0b4b
Add support for URL mode elicitation (#1021) 2025-12-05 00:03:16 -08:00
Mike Kistler
c447973972
Add request options bag to high level requests and include Meta (#970)
Co-authored-by: Stephen Toub <stoub@microsoft.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-04 17:32:12 -05:00