René's URL Explorer Experiment

Title: Add the client-side subscriptions/listen driver by maxisbey · Pull Request #3047 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: Add the client-side subscriptions/listen driver by maxisbey · Pull Request #3047 · modelcontextprotocol/python-sdk

X Title: Add the client-side subscriptions/listen driver by maxisbey · Pull Request #3047 · modelcontextprotocol/python-sdk

Description: The official Python SDK for Model Context Protocol servers and clients - Add the client-side subscriptions/listen driver by maxisbey · Pull Request #3047 · modelcontextprotocol/python-sdk

Open Graph Description: Stacked on #3046 (the request-id and cancellation plumbing) — review this one for the driver only; the base branch carries the transport work. The client half of subscriptions/listen (2026-07-28, S...

X Description: Stacked on #3046 (the request-id and cancellation plumbing) — review this one for the driver only; the base branch carries the transport work. The client half of subscriptions/listen (2026-07-28, S...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/3047

X: @github

direct link

Domain: github.com

route-pattern	/:user_id/:repository/pull/:id/commits(.:format)
route-controller	pull_requests
route-action	commits
fetch-nonce	v2:8cb081e5-5cab-2b8d-e3fb-ee6de84e494d
current-catalog-service-hash	ae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-id	8054:2C4572:3297E4:42F2E5:6A5BC8A1
html-safe-nonce	9ebfbe9ec30ab707f46a527205e14918733111f225494df0acaca79229a306dc
visitor-payload	eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiI4MDU0OjJDNDU3MjozMjk3RTQ6NDJGMkU1OjZBNUJDOEExIiwidmlzaXRvcl9pZCI6IjU1MDY0NzUzMzQ1ODQ0ODYwNDkiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac	e6d288164041590ed3c728f041ddf278e32f2aff439fc6380b70342d7ccbb206
hovercard-subject-tag	pull_request:3972898099
github-keyboard-shortcuts	repository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verification	Apib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-url	https://collector.github.com/github/collect
analytics-location	///pull_requests/show/commits
fb:app_id	1401488693436528
apple-itunes-app	app-id=1477376905, app-argument=https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits
twitter:image	https://opengraph.githubassets.com/b742a0481edd151b648fc8b3d5e47aec3aab62ef31d6173a63a09f4b4256fd76/modelcontextprotocol/python-sdk/pull/3047
twitter:card	summary_large_image
og:image	https://opengraph.githubassets.com/b742a0481edd151b648fc8b3d5e47aec3aab62ef31d6173a63a09f4b4256fd76/modelcontextprotocol/python-sdk/pull/3047
og:image:alt	Stacked on #3046 (the request-id and cancellation plumbing) — review this one for the driver only; the base branch carries the transport work. The client half of subscriptions/listen (2026-07-28, S...
og:image:width	1200
og:image:height	600
og:site_name	GitHub
og:type	object
og:author:username	maxisbey
hostname	github.com
expected-hostname	github.com
None	5290d7e14309ad1e76106a9c4237bd1041517e83ea182c8ab756752cb0c6940b
turbo-cache-control	no-cache
go-import	github.com/modelcontextprotocol/python-sdk git https://github.com/modelcontextprotocol/python-sdk.git
octolytics-dimension-user_id	182288589
octolytics-dimension-user_login	modelcontextprotocol
octolytics-dimension-repository_id	862584018
octolytics-dimension-repository_nwo	modelcontextprotocol/python-sdk
octolytics-dimension-repository_public	true
octolytics-dimension-repository_is_fork	false
octolytics-dimension-repository_network_root_id	862584018
octolytics-dimension-repository_network_root_nwo	modelcontextprotocol/python-sdk
turbo-body-classes	logged-out env-production page-responsive
disable-turbo	false
browser-stats-url	https://api.github.com/_private/browser/stats
browser-errors-url	https://api.github.com/_private/browser/errors
release	9c975978430e9ad293956f2bbdaf153b1bd84a99
ui-target	full
theme-color	#1e2327
color-scheme	light dark

Links:

Skip to content	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits#start-of-content
	https://github.com/
Sign in	https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F3047%2Fcommits
GitHub CopilotWrite better code with AI	https://github.com/features/copilot
GitHub Copilot appDirect agents from issue to merge	https://github.com/features/ai/github-app
MCP RegistryNewIntegrate external tools	https://github.com/mcp
ActionsAutomate any workflow	https://github.com/features/actions
CodespacesInstant dev environments	https://github.com/features/codespaces
IssuesPlan and track work	https://github.com/features/issues
Code ReviewManage code changes	https://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilities	https://github.com/security/advanced-security
Code securitySecure your code as you build	https://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they start	https://github.com/security/advanced-security/secret-protection
Why GitHub	https://github.com/why-github
Documentation	https://docs.github.com
Blog	https://github.blog
Changelog	https://github.blog/changelog
Marketplace	https://github.com/marketplace
View all features	https://github.com/features
Enterprises	https://github.com/enterprise
Small and medium teams	https://github.com/team
Startups	https://github.com/enterprise/startups
Nonprofits	https://github.com/solutions/industry/nonprofits
App Modernization	https://github.com/solutions/use-case/app-modernization
DevSecOps	https://github.com/solutions/use-case/devsecops
DevOps	https://github.com/solutions/use-case/devops
CI/CD	https://github.com/solutions/use-case/ci-cd
View all use cases	https://github.com/solutions/use-case
Healthcare	https://github.com/solutions/industry/healthcare
Financial services	https://github.com/solutions/industry/financial-services
Manufacturing	https://github.com/solutions/industry/manufacturing
Government	https://github.com/solutions/industry/government
View all industries	https://github.com/solutions/industry
View all solutions	https://github.com/solutions
AI	https://github.com/resources/articles?topic=ai
Software Development	https://github.com/resources/articles?topic=software-development
DevOps	https://github.com/resources/articles?topic=devops
Security	https://github.com/resources/articles?topic=security
View all topics	https://github.com/resources/articles
Customer stories	https://github.com/customer-stories
Events & webinars	https://github.com/resources/events
Ebooks & reports	https://github.com/resources/whitepapers
Business insights	https://github.com/solutions/executive-insights
GitHub Skills	https://skills.github.com
Documentation	https://docs.github.com
Customer support	https://support.github.com
Community forum	https://github.com/orgs/community/discussions
Trust center	https://github.com/trust-center
Partners	https://github.com/partners
View all resources	https://github.com/resources
GitHub SponsorsFund open source developers	https://github.com/open-source/sponsors
Security Lab	https://securitylab.github.com
Maintainer Community	https://maintainers.github.com
Accelerator	https://github.com/open-source/accelerator
GitHub Stars	https://stars.github.com
Archive Program	https://archiveprogram.github.com
Topics	https://github.com/topics
Trending	https://github.com/trending
Collections	https://github.com/collections
Enterprise platformAI-powered developer platform	https://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security features	https://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI features	https://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 support	https://github.com/enterprise/premium-support
Pricing	https://github.com/pricing
Search syntax tips	https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentation	https://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%2F3047%2Fcommits
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%2Fpull_requests%2Fshow%2Fcommits&source=header-repo&source_repo=modelcontextprotocol%2Fpython-sdk
Reload	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits
Reload	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits
Reload	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits
Please reload this page	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits
modelcontextprotocol	https://github.com/modelcontextprotocol
python-sdk	https://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 259	https://github.com/modelcontextprotocol/python-sdk/issues
Pull requests 306	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
maxisbey	https://github.com/maxisbey
main	https://github.com/modelcontextprotocol/python-sdk/tree/main
listen-client-driver	https://github.com/modelcontextprotocol/python-sdk/tree/listen-client-driver
Conversation	https://github.com/modelcontextprotocol/python-sdk/pull/3047
Commits18 (18)	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits
Checks	https://github.com/modelcontextprotocol/python-sdk/pull/3047/checks
Files changed	https://github.com/modelcontextprotocol/python-sdk/pull/3047/files
Add the client-side subscriptions/listen driver	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits#top
maxisbey	https://github.com/maxisbey
main	https://github.com/modelcontextprotocol/python-sdk/tree/main
listen-client-driver	https://github.com/modelcontextprotocol/python-sdk/tree/listen-client-driver
Add the client-side subscriptions/listen driver	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/b39c4bf8858ae42d600ec4b828b974bc40de5516
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
b39c4bf	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/b39c4bf8858ae42d600ec4b828b974bc40de5516
	https://github.com/modelcontextprotocol/python-sdk/tree/b39c4bf8858ae42d600ec4b828b974bc40de5516
Keep the docs watch-loop snippet ASCII	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/f69098c263642f2e93de82dc4bf52030d1f26c77
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
f69098c	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/f69098c263642f2e93de82dc4bf52030d1f26c77
	https://github.com/modelcontextprotocol/python-sdk/tree/f69098c263642f2e93de82dc4bf52030d1f26c77
Harden the listen driver against receive-order races and hostile peers	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/6c36cbd8355a96ee026f841ce04ae8f2888e17cf
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
6c36cbd	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/6c36cbd8355a96ee026f841ce04ae8f2888e17cf
	https://github.com/modelcontextprotocol/python-sdk/tree/6c36cbd8355a96ee026f841ce04ae8f2888e17cf
Trim comments and docstrings in the listen driver changes	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/ec13b6b01c8d18ac4bfcc401ef9ba1c450e62044
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
ec13b6b	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/ec13b6b01c8d18ac4bfcc401ef9ba1c450e62044
	https://github.com/modelcontextprotocol/python-sdk/tree/ec13b6b01c8d18ac4bfcc401ef9ba1c450e62044
Point moved docs pages at the client driver section	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/755013118f64f97c76e49352145865a3908fe399
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
7550131	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/755013118f64f97c76e49352145865a3908fe399
	https://github.com/modelcontextprotocol/python-sdk/tree/755013118f64f97c76e49352145865a3908fe399
Move the docs watch-loop example into docs_src and prove it	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/c10f25fe45c168e03f922e674cdf8613dc654e3a
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
c10f25f	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/c10f25fe45c168e03f922e674cdf8613dc654e3a
	https://github.com/modelcontextprotocol/python-sdk/tree/c10f25fe45c168e03f922e674cdf8613dc654e3a
Deep-link the migration guide and spell out the watcher test choreography	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/6770ffa250fd55b9442230ff42d726732f7301c0
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
6770ffa	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/6770ffa250fd55b9442230ff42d726732f7301c0
	https://github.com/modelcontextprotocol/python-sdk/tree/6770ffa250fd55b9442230ff42d726732f7301c0
Prove the caller-supplied listen id end to end and undefer its requirement	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/cf2a7d3d8a455d834c937ae69ebf56486f0fd84f
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
cf2a7d3	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/cf2a7d3d8a455d834c937ae69ebf56486f0fd84f
	https://github.com/modelcontextprotocol/python-sdk/tree/cf2a7d3d8a455d834c937ae69ebf56486f0fd84f
Prove concurrent listen streams demux their own acks	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/9ef0ed78b79eabd6f19a289af140527bdb60a261
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
9ef0ed7	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/9ef0ed78b79eabd6f19a289af140527bdb60a261
	https://github.com/modelcontextprotocol/python-sdk/tree/9ef0ed78b79eabd6f19a289af140527bdb60a261
Rewrite the subscriptions docs around a worked example	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/46ba07180e9b8624d7eef07af5b9f484f49aaabc
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
46ba071	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/46ba07180e9b8624d7eef07af5b9f484f49aaabc
	https://github.com/modelcontextprotocol/python-sdk/tree/46ba07180e9b8624d7eef07af5b9f484f49aaabc
Repoint subscription doc links at the renamed headings	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/2ce1e475e14fa4c8b7e4081ed2194439ddd7139f
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
2ce1e47	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/2ce1e475e14fa4c8b7e4081ed2194439ddd7139f
	https://github.com/modelcontextprotocol/python-sdk/tree/2ce1e475e14fa4c8b7e4081ed2194439ddd7139f
Connect the subscription examples over HTTP	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/5e941c6301c84f7bfcef17b5bcd24cdb2bd11654
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
5e941c6	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/5e941c6301c84f7bfcef17b5bcd24cdb2bd11654
	https://github.com/modelcontextprotocol/python-sdk/tree/5e941c6301c84f7bfcef17b5bcd24cdb2bd11654
State precisely what a subscription filter can and cannot leak	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/b9284a5d315044ddc85bb6c4b3da52fd1c285e01
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
b9284a5	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/b9284a5d315044ddc85bb6c4b3da52fd1c285e01
	https://github.com/modelcontextprotocol/python-sdk/tree/b9284a5d315044ddc85bb6c4b3da52fd1c285e01
Correct the stop-watching wire claim and the copied-filename import note	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/34215a928a9ee7cfdbdf24fd67932ecf13c9cd4b
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
34215a9	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/34215a928a9ee7cfdbdf24fd67932ecf13c9cd4b
	https://github.com/modelcontextprotocol/python-sdk/tree/34215a928a9ee7cfdbdf24fd67932ecf13c9cd4b
Fix two waiter-resolution gaps in the streamable HTTP client	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/b642ac41897159f17f05e9ba3881e6ea1e51fe75
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
b642ac4	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/b642ac41897159f17f05e9ba3881e6ea1e51fe75
	https://github.com/modelcontextprotocol/python-sdk/tree/b642ac41897159f17f05e9ba3881e6ea1e51fe75
Shadow the per-module runner lease in the docs subscriptions tests	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/f6b52951c1ae5da5fb90e8245ff0ff53a89961b3
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
f6b5295	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/f6b52951c1ae5da5fb90e8245ff0ff53a89961b3
	https://github.com/modelcontextprotocol/python-sdk/tree/f6b52951c1ae5da5fb90e8245ff0ff53a89961b3
Sever a superseded POST instead of guarding one resolution path	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/07b5c9a3fe481fa364c8bf140fc7274b2c56c3e9
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
07b5c9a	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/07b5c9a3fe481fa364c8bf140fc7274b2c56c3e9
	https://github.com/modelcontextprotocol/python-sdk/tree/07b5c9a3fe481fa364c8bf140fc7274b2c56c3e9
Split the client side of subscriptions onto its own page	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/56e2a2627a129efde42c8fec46de3f5bd4636ba4
	https://github.com/maxisbey
maxisbey	https://github.com/modelcontextprotocol/python-sdk/commits?author=maxisbey
56e2a26	https://github.com/modelcontextprotocol/python-sdk/pull/3047/commits/56e2a2627a129efde42c8fec46de3f5bd4636ba4
	https://github.com/modelcontextprotocol/python-sdk/tree/56e2a2627a129efde42c8fec46de3f5bd4636ba4
	https://github.com
Terms	https://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacy	https://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Security	https://github.com/security
Status	https://www.githubstatus.com/
Community	https://github.community/
Docs	https://docs.github.com/
Contact	https://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.