René's URL Explorer Experiment


Title: fix: return isError for argument validation failures by blackwell-systems · Pull Request #2488 · github/github-mcp-server · GitHub

Open Graph Title: fix: return isError for argument validation failures by blackwell-systems · Pull Request #2488 · github/github-mcp-server

X Title: fix: return isError for argument validation failures by blackwell-systems · Pull Request #2488 · github/github-mcp-server

Description: GitHub's official MCP Server. Contribute to github/github-mcp-server development by creating an account on GitHub.

Open Graph Description: Fixes #1952. Problem When tool argument unmarshalling fails (wrong types, malformed JSON), the handler returns (nil, err) which the SDK converts to a JSON-RPC protocol error (-32603). Agents cannot...

X Description: Fixes #1952. Problem When tool argument unmarshalling fails (wrong types, malformed JSON), the handler returns (nil, err) which the SDK converts to a JSON-RPC protocol error (-32603). Agents cannot...

Opengraph URL: https://github.com/github/github-mcp-server/pull/2488

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:b670abc9-db51-3d98-1a29-524ae3b4a087
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idE496:28F19D:BFC92:112807:6A61F96F
html-safe-nonceab524b3ca1c4a1a2f09e0a6239783ff63489d4acf56f65fc9111e4160e87c195
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJFNDk2OjI4RjE5RDpCRkM5MjoxMTI4MDc6NkE2MUY5NkYiLCJ2aXNpdG9yX2lkIjoiMTIyODM1NTMzMTI3MTI5MzI5NSIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmac113c76a517aee913cfba3f76f8b7e6a5ed764efcef66206b64630d2415bad9a7
hovercard-subject-tagpull_request:3696817558
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/github/github-mcp-server/2488/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/850baa5f938d3a086ac14fd285ef9946eefac505b70666968f08473b47d1a3f6/github/github-mcp-server/pull/2488
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/850baa5f938d3a086ac14fd285ef9946eefac505b70666968f08473b47d1a3f6/github/github-mcp-server/pull/2488
og:image:altFixes #1952. Problem When tool argument unmarshalling fails (wrong types, malformed JSON), the handler returns (nil, err) which the SDK converts to a JSON-RPC protocol error (-32603). Agents cannot...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernameblackwell-systems
hostnamegithub.com
expected-hostnamegithub.com
None9e41a6fd863e96b9c7e9185dc317bf107dbbf8cb10efd6dea957211963f33775
turbo-cache-controlno-cache
go-importgithub.com/github/github-mcp-server git https://github.com/github/github-mcp-server.git
octolytics-dimension-user_id9919
octolytics-dimension-user_logingithub
octolytics-dimension-repository_id942771284
octolytics-dimension-repository_nwogithub/github-mcp-server
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id942771284
octolytics-dimension-repository_network_root_nwogithub/github-mcp-server
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
release2ed5e9c44acb35dcc1d752e449d2a6f7a6164b7b
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/github/github-mcp-server/pull/2488#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fgithub%2Fgithub-mcp-server%2Fpull%2F2488
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
Code QualityEnforce quality at mergehttps://github.com/features/code-quality
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%2Fgithub%2Fgithub-mcp-server%2Fpull%2F2488
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=github%2Fgithub-mcp-server
Reloadhttps://github.com/github/github-mcp-server/pull/2488
Reloadhttps://github.com/github/github-mcp-server/pull/2488
Reloadhttps://github.com/github/github-mcp-server/pull/2488
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
github https://github.com/github
github-mcp-serverhttps://github.com/github/github-mcp-server
Notifications https://github.com/login?return_to=%2Fgithub%2Fgithub-mcp-server
Fork 4.6k https://github.com/login?return_to=%2Fgithub%2Fgithub-mcp-server
Star 31.6k https://github.com/login?return_to=%2Fgithub%2Fgithub-mcp-server
Code https://github.com/github/github-mcp-server
Issues 171 https://github.com/github/github-mcp-server/issues
Pull requests 162 https://github.com/github/github-mcp-server/pulls
Discussions https://github.com/github/github-mcp-server/discussions
Actions https://github.com/github/github-mcp-server/actions
Models https://github.com/github/github-mcp-server/models
Security and quality 2 https://github.com/github/github-mcp-server/security
Insights https://github.com/github/github-mcp-server/pulse
Code https://github.com/github/github-mcp-server
Issues https://github.com/github/github-mcp-server/issues
Pull requests https://github.com/github/github-mcp-server/pulls
Discussions https://github.com/github/github-mcp-server/discussions
Actions https://github.com/github/github-mcp-server/actions
Models https://github.com/github/github-mcp-server/models
Security and quality https://github.com/github/github-mcp-server/security
Insights https://github.com/github/github-mcp-server/pulse
blackwell-systemshttps://github.com/blackwell-systems
github:mainhttps://github.com/github/github-mcp-server/tree/main
blackwell-systems:fix/is-error-validationhttps://github.com/blackwell-systems/github-mcp-server/tree/fix/is-error-validation
Conversationhttps://github.com/github/github-mcp-server/pull/2488
Findingshttps://github.com/github/github-mcp-server/pull/2488/findings
Commits3 (3)https://github.com/github/github-mcp-server/pull/2488/commits
Checkshttps://github.com/github/github-mcp-server/pull/2488/checks
Files changedhttps://github.com/github/github-mcp-server/pull/2488/files
fix: return isError for argument validation failureshttps://github.com/github/github-mcp-server/pull/2488#top
blackwell-systemshttps://github.com/blackwell-systems
github:mainhttps://github.com/github/github-mcp-server/tree/main
blackwell-systems:fix/is-error-validationhttps://github.com/blackwell-systems/github-mcp-server/tree/fix/is-error-validation
https://github.com/blackwell-systems
blackwell-systemshttps://github.com/blackwell-systems
May 17, 2026https://github.com/github/github-mcp-server/pull/2488#issue-4462910269
#1952https://github.com/github/github-mcp-server/issues/1952
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
https://github.com/blackwell-systems
fix: return isError for argument validation failureshttps://github.com/github/github-mcp-server/pull/2488/commits/968422b09cdfc719c33777f4712bf36c28685692
968422bhttps://github.com/github/github-mcp-server/pull/2488/commits/968422b09cdfc719c33777f4712bf36c28685692
github#1952https://github.com/github/github-mcp-server/issues/1952
https://github.com/blackwell-systems
blackwell-systemshttps://github.com/blackwell-systems
code ownerhttps://github.com/github/github-mcp-server/blob/8a48d0749f8afbadaa66ef828fd424195fb7846f/.github/CODEOWNERS#L1
May 17, 2026 08:48https://github.com/github/github-mcp-server/pull/2488#event-25623104517
https://github.com/SamMorrowDrums
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 19, 2026 https://github.com/github/github-mcp-server/pull/2488#pullrequestreview-4321234926
View reviewed changes https://github.com/github/github-mcp-server/pull/2488/files/d08ff79dc490e9d9b96cf04c16ca353494e9152c
SamMorrowDrumshttps://github.com/SamMorrowDrums
https://github.com/github/github-mcp-server/pull/2488#pullrequestreview-4321234926
Learn morehttps://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment
2025-11-25 spechttps://modelcontextprotocol.io/specification/2025-11-25/server/tools#error-handling
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
https://github.com/SamMorrowDrums
Merge branch 'main' into fix/is-error-validationhttps://github.com/github/github-mcp-server/pull/2488/commits/d08ff79dc490e9d9b96cf04c16ca353494e9152c
d08ff79https://github.com/github/github-mcp-server/pull/2488/commits/d08ff79dc490e9d9b96cf04c16ca353494e9152c
https://github.com/SamMorrowDrums
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 19, 2026https://github.com/github/github-mcp-server/pull/2488#issuecomment-4490694264
@blackwell-systemshttps://github.com/blackwell-systems
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
https://github.com/blackwell-systems
blackwell-systemshttps://github.com/blackwell-systems
SamMorrowDrumshttps://github.com/SamMorrowDrums
stale reviewhttps://github.com/github/github-mcp-server/pull/2488#pullrequestreview-4321234926
05ba17dhttps://github.com/github/github-mcp-server/commit/05ba17dcf24a1c1eb7c2dc68d5fa080aacd5db62
May 19, 2026 18:25https://github.com/github/github-mcp-server/pull/2488#event-25720609255
https://github.com/SamMorrowDrums
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 19, 2026https://github.com/github/github-mcp-server/pull/2488#issuecomment-4491627942
@blackwell-systemshttps://github.com/blackwell-systems
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
https://github.com/blackwell-systems
fix: rename unused parameters to satisfy revive linterhttps://github.com/github/github-mcp-server/pull/2488/commits/ebffad19c40a3deb272b834ad554432103d319c8
ebffad1https://github.com/github/github-mcp-server/pull/2488/commits/ebffad19c40a3deb272b834ad554432103d319c8
https://github.com/blackwell-systems
blackwell-systemshttps://github.com/blackwell-systems
force-pushedhttps://github.com/github/github-mcp-server/compare/05ba17dcf24a1c1eb7c2dc68d5fa080aacd5db62..ebffad19c40a3deb272b834ad554432103d319c8
05ba17dhttps://github.com/github/github-mcp-server/commit/05ba17dcf24a1c1eb7c2dc68d5fa080aacd5db62
ebffad1https://github.com/github/github-mcp-server/commit/ebffad19c40a3deb272b834ad554432103d319c8
Compare https://github.com/github/github-mcp-server/compare/05ba17dcf24a1c1eb7c2dc68d5fa080aacd5db62..ebffad19c40a3deb272b834ad554432103d319c8
May 19, 2026 20:17https://github.com/github/github-mcp-server/pull/2488#event-25725205861
https://github.com/SamMorrowDrums
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 20, 2026 https://github.com/github/github-mcp-server/pull/2488#ref-pullrequest-4484464091
fix: return isError for argument validation failures #2511 https://github.com/github/github-mcp-server/pull/2511
https://github.com/SamMorrowDrums
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 20, 2026https://github.com/github/github-mcp-server/pull/2488#issuecomment-4496060612
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
https://github.com/SamMorrowDrums
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 20, 2026https://github.com/github/github-mcp-server/pull/2488#event-25746149272
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 20, 2026 https://github.com/github/github-mcp-server/pull/2488#ref-commit-4884d63
https://github.com/SamMorrowDrums
https://github.com/blackwell-systems
https://github.com/apps/github-copilot-cli
fix: return isError for argument validation failureshttps://github.com/github/github-mcp-server/commit/4884d6370b1422de9550928cfeaa9d416c7994ec
4884d63https://github.com/github/github-mcp-server/commit/4884d6370b1422de9550928cfeaa9d416c7994ec
#2510https://github.com/github/github-mcp-server/pull/2510
#1952https://github.com/github/github-mcp-server/issues/1952
#2488https://github.com/github/github-mcp-server/pull/2488
@blackwell-systemshttps://github.com/blackwell-systems
SamMorrowDrumshttps://github.com/SamMorrowDrums
May 20, 2026 https://github.com/github/github-mcp-server/pull/2488#ref-commit-272d160
https://github.com/SamMorrowDrums
https://github.com/apps/github-copilot-cli
https://github.com/blackwell-systems
fix: return isError for argument validation failures (https://github.com/github/github-mcp-server/commit/272d1605127f42b848c59fd053d07683728a8b45
#2511https://github.com/github/github-mcp-server/pull/2511
)https://github.com/github/github-mcp-server/commit/272d1605127f42b848c59fd053d07683728a8b45
272d160https://github.com/github/github-mcp-server/commit/272d1605127f42b848c59fd053d07683728a8b45
#2510https://github.com/github/github-mcp-server/pull/2510
#1952https://github.com/github/github-mcp-server/issues/1952
#2488https://github.com/github/github-mcp-server/pull/2488
@blackwell-systemshttps://github.com/blackwell-systems
https://github.co/hiddenchars
https://github.com/github/github-mcp-server/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%2Fgithub%2Fgithub-mcp-server%2Fpull%2F2488
https://github.com/SamMorrowDrums
SamMorrowDrums https://github.com/SamMorrowDrums
https://github.com/github/github-mcp-server/pull/2488/files/d08ff79dc490e9d9b96cf04c16ca353494e9152c
MCP tool results should set is_error: true when validation fails https://github.com/github/github-mcp-server/issues/1952
Please reload this pagehttps://github.com/github/github-mcp-server/pull/2488
https://github.com/blackwell-systems
https://github.com/SamMorrowDrums
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.