modelcontextprotocol/modelcontextprotocol

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Specification and documentation for the Model Context Protocol

Stars: 9.3k
Forks: 1.8k
Open beginner issues: 0
Indexed issues: 74
Avg merge: 1d 12h
Merged PRs (30d): 25

Dominant language: TypeScript
License: No license data
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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74 open issues indexed

Obligatory MCP state transitions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

modelcontextprotocol/modelcontextprotocol#1341 · 2 comments · Opened Aug 13, 2025
Versioning challenges with spec negotiation – client/server compatibility & rollout concerns Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

modelcontextprotocol/modelcontextprotocol#1281 · 5 comments · Opened Aug 1, 2025
The client should let the server know whether or not it supports the server's capabilities Open

enhancement SEP-requested

Difficulty 5/5 Over a week Newbie friendliness 30/100

modelcontextprotocol/modelcontextprotocol#963 · 5 comments · Opened Jul 14, 2025
Specification should be more prescriptive about client/host/LLM behavior Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

modelcontextprotocol/modelcontextprotocol#910 · Opened Jul 3, 2025
Add Elicitation starting guidance in the User Guide Open

documentation enhancement

modelcontextprotocol/modelcontextprotocol#774 · 3 comments · 5 reactions · 1 assignee · Opened Jun 18, 2025
feat: support advanced token target audience validation in addition to RFC8707 Open

auth enhancement security

modelcontextprotocol/modelcontextprotocol#763 · 1 comment · 4 assignees · Opened Jun 17, 2025
Reconcile and/or consolidate working SDK code snippets with code examples in User Guide Open

documentation enhancement

modelcontextprotocol/modelcontextprotocol#704 · 3 comments · 1 reaction · 1 assignee · Opened Jun 11, 2025
EmbeddedResource returns a single content block, ReadResourceResult returns an array Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

modelcontextprotocol/modelcontextprotocol#699 · 2 comments · Opened Jun 10, 2025
spec: resource template matching should exclude backreferences Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

modelcontextprotocol/modelcontextprotocol#697 · 2 comments · Opened Jun 10, 2025
Proposal: Schema - list-schemas - new protocol element Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

modelcontextprotocol/modelcontextprotocol#610 · 10 comments · 9 reactions · Opened May 30, 2025
Unspecified error handling for tool calls with output schema Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

modelcontextprotocol/modelcontextprotocol#569 · 2 comments · Opened May 23, 2025
spec should define a unique ID for resource templates Open

bug documentation

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/modelcontextprotocol#566 · 3 comments · 3 reactions · Opened May 22, 2025
Discussion: Should an MCP Server Expose Its Resource List Before Authentication? Open

auth security

modelcontextprotocol/modelcontextprotocol#540 · 12 comments · 2 reactions · 4 assignees · Opened May 16, 2025
Base64 in JSON RPC will not scale for file content Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

modelcontextprotocol/modelcontextprotocol#527 · 15 comments · 2 reactions · Opened May 14, 2025
Use a versioning scheme that can more easily indicate non-breaking changes Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

modelcontextprotocol/modelcontextprotocol#476 · 1 reaction · Opened May 6, 2025
MCP Schema (schema.json) Missing Standard Protocol Version Identifier Open

enhancement schema

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

modelcontextprotocol/modelcontextprotocol#394 · 2 comments · Opened Apr 23, 2025
Define a Standard MCP Configuration Schema Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/modelcontextprotocol#292 · 23 comments · 50 reactions · Opened Apr 8, 2025
Pagination for tool/call Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/modelcontextprotocol#229 · 6 comments · 2 reactions · Opened Mar 26, 2025
Passing attachments (resources) to MCP servers? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/modelcontextprotocol#155 · 7 comments · 3 reactions · Opened Feb 1, 2025
Optional type info for Prompt parameters, or better allow JsonSchema for prompts as well Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

modelcontextprotocol/modelcontextprotocol#136 · 10 comments · 2 reactions · Opened Jan 9, 2025
JSON resources Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

modelcontextprotocol/modelcontextprotocol#130 · 2 comments · Opened Jan 2, 2025
Add `examples` or similar to the standard schema Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

modelcontextprotocol/modelcontextprotocol#125 · 4 comments · 2 reactions · Opened Dec 22, 2024
Streaming tool use results Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

modelcontextprotocol/modelcontextprotocol#117 · 13 comments · 50 reactions · Opened Dec 16, 2024
Inconsistent Content Type Definitions in MCP Schema Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

modelcontextprotocol/modelcontextprotocol#91 · 4 comments · 3 reactions · Opened Nov 30, 2024

modelcontextprotocol/modelcontextprotocol

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