René's URL Explorer Experiment


Title: fix: dispatch client request handlers concurrently (#2489) by demoray · Pull Request #2490 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: fix: dispatch client request handlers concurrently (#2489) by demoray · Pull Request #2490 · modelcontextprotocol/python-sdk

X Title: fix: dispatch client request handlers concurrently (#2489) by demoray · Pull Request #2490 · modelcontextprotocol/python-sdk

Description: The official Python SDK for Model Context Protocol servers and clients - fix: dispatch client request handlers concurrently (#2489) by demoray · Pull Request #2490 · modelcontextprotocol/python-sdk

Open Graph Description: Closes #2489. Problem BaseSession._receive_loop awaited each incoming request handler inline, so concurrent server→client requests (e.g. N create_message sampling callbacks launched via asyncio.gat...

X Description: Closes #2489. Problem BaseSession._receive_loop awaited each incoming request handler inline, so concurrent server→client requests (e.g. N create_message sampling callbacks launched via asyncio.gat...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/2490

X: @github

direct link

Domain: github.com

route-pattern/_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format)
route-controllervoltron_pull_requests_fragments
route-actionpull_request_layout
fetch-noncev2:52e0ac1c-f931-d4d5-434d-820625fdc3e8
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idD6BA:1EE61A:4EDFF9:705CB5:6A59E1EF
html-safe-nonce3e76055b9ebb3e838ba74fdae22a83c869005865b6f247e0d4f04b3d3b3b53d9
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJENkJBOjFFRTYxQTo0RURGRjk6NzA1Q0I1OjZBNTlFMUVGIiwidmlzaXRvcl9pZCI6IjkyMDkzMjgwOTY4NzY1NTI2ODgiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmacb7b5fb2ee6aba063857416636f2a4caec48903d8e178b9e37e397b3243cb33cd
hovercard-subject-tagpull_request:3564327388
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///voltron/pull_requests_fragments/pull_request_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/modelcontextprotocol/python-sdk/2490/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/5a9c6dd6442dc0b6f2293f2dfd2b035ac0e4d6664c3c12f7dc5877cff9537831/modelcontextprotocol/python-sdk/pull/2490
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/5a9c6dd6442dc0b6f2293f2dfd2b035ac0e4d6664c3c12f7dc5877cff9537831/modelcontextprotocol/python-sdk/pull/2490
og:image:altCloses #2489. Problem BaseSession._receive_loop awaited each incoming request handler inline, so concurrent server→client requests (e.g. N create_message sampling callbacks launched via asyncio.gat...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamedemoray
hostnamegithub.com
expected-hostnamegithub.com
Noneba3976babb66479b1c943a8edc0777d96157da48fadc0161f9ddb219deee8353
turbo-cache-controlno-cache
go-importgithub.com/modelcontextprotocol/python-sdk git https://github.com/modelcontextprotocol/python-sdk.git
octolytics-dimension-user_id182288589
octolytics-dimension-user_loginmodelcontextprotocol
octolytics-dimension-repository_id862584018
octolytics-dimension-repository_nwomodelcontextprotocol/python-sdk
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id862584018
octolytics-dimension-repository_network_root_nwomodelcontextprotocol/python-sdk
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release26f17126414f953984d8ae42f57c0db48e7dbde3
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/modelcontextprotocol/python-sdk/pull/2490#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F2490
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F2490
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=modelcontextprotocol%2Fpython-sdk
Reloadhttps://github.com/modelcontextprotocol/python-sdk/pull/2490
Reloadhttps://github.com/modelcontextprotocol/python-sdk/pull/2490
Reloadhttps://github.com/modelcontextprotocol/python-sdk/pull/2490
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2490
modelcontextprotocol https://github.com/modelcontextprotocol
python-sdkhttps://github.com/modelcontextprotocol/python-sdk
Notifications https://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Fork 3.7k https://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Star 23.6k https://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Code https://github.com/modelcontextprotocol/python-sdk
Issues 255 https://github.com/modelcontextprotocol/python-sdk/issues
Pull requests 303 https://github.com/modelcontextprotocol/python-sdk/pulls
Actions https://github.com/modelcontextprotocol/python-sdk/actions
Projects https://github.com/modelcontextprotocol/python-sdk/projects
Models https://github.com/modelcontextprotocol/python-sdk/models
Security and quality 6 https://github.com/modelcontextprotocol/python-sdk/security
Insights https://github.com/modelcontextprotocol/python-sdk/pulse
Code https://github.com/modelcontextprotocol/python-sdk
Issues https://github.com/modelcontextprotocol/python-sdk/issues
Pull requests https://github.com/modelcontextprotocol/python-sdk/pulls
Actions https://github.com/modelcontextprotocol/python-sdk/actions
Projects https://github.com/modelcontextprotocol/python-sdk/projects
Models https://github.com/modelcontextprotocol/python-sdk/models
Security and quality https://github.com/modelcontextprotocol/python-sdk/security
Insights https://github.com/modelcontextprotocol/python-sdk/pulse
demorayhttps://github.com/demoray
modelcontextprotocol:mainhttps://github.com/modelcontextprotocol/python-sdk/tree/main
demoray:bcaswell/fix-concurrent-request-dispatch-2489https://github.com/demoray/python-sdk/tree/bcaswell/fix-concurrent-request-dispatch-2489
Conversationhttps://github.com/modelcontextprotocol/python-sdk/pull/2490
Commits1 (1)https://github.com/modelcontextprotocol/python-sdk/pull/2490/commits
Checkshttps://github.com/modelcontextprotocol/python-sdk/pull/2490/checks
Files changedhttps://github.com/modelcontextprotocol/python-sdk/pull/2490/files
fix: dispatch client request handlers concurrently (#2489)https://github.com/modelcontextprotocol/python-sdk/pull/2490#top
demorayhttps://github.com/demoray
modelcontextprotocol:mainhttps://github.com/modelcontextprotocol/python-sdk/tree/main
demoray:bcaswell/fix-concurrent-request-dispatch-2489https://github.com/demoray/python-sdk/tree/bcaswell/fix-concurrent-request-dispatch-2489
https://github.com/demoray
demorayhttps://github.com/demoray
Apr 21, 2026https://github.com/modelcontextprotocol/python-sdk/pull/2490#issue-4305617776
#2489https://github.com/modelcontextprotocol/python-sdk/issues/2489
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2490
https://github.com/demoray
fix: dispatch client request handlers concurrently (https://github.com/modelcontextprotocol/python-sdk/pull/2490/commits/251133344499c6ad84ca0f78a260a0b47f684c36
modelcontextproto…https://github.com/modelcontextprotocol/python-sdk/issues/2489
2511333https://github.com/modelcontextprotocol/python-sdk/pull/2490/commits/251133344499c6ad84ca0f78a260a0b47f684c36
…col#2489https://github.com/modelcontextprotocol/python-sdk/issues/2489
https://github.com/demoray
demorayhttps://github.com/demoray
Apr 22, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2490#ref-issue-4305122586
Concurrent server-side sampling requests are serialized end-to-end PrefectHQ/fastmcp#4006 https://github.com/PrefectHQ/fastmcp/issues/4006
https://github.com/maxisbey
maxisbeyhttps://github.com/maxisbey
Jun 11, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2490#ref-pullrequest-4642346713
[v2] ClientSession runs on JSONRPCDispatcher; BaseSession removed #2838 https://github.com/modelcontextprotocol/python-sdk/pull/2838
https://github.com/demoray
demorayhttps://github.com/demoray
Jun 15, 2026https://github.com/modelcontextprotocol/python-sdk/pull/2490#issuecomment-4708628680
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2490
https://github.com/demoray
demorayhttps://github.com/demoray
Jun 15, 2026https://github.com/modelcontextprotocol/python-sdk/pull/2490#event-26760608129
https://github.co/hiddenchars
https://github.com/modelcontextprotocol/python-sdk/pull/{{ revealButtonHref }}
Sign up for freehttps://github.com/join?source=comment-repo
Sign in to commenthttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F2490
Concurrent server-side requests are serialized end-to-end by BaseSession https://github.com/modelcontextprotocol/python-sdk/issues/2489
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2490
https://github.com/demoray
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.