Say every MCP list is complete, so current clients accept it - #170
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Claude Code now speaks protocol revision 2026-07-28, which requires a
list result to carry resultType. The server already announces that
revision through server/discover, but answered tools/list and
resources/list without the field, so the client rejected both
("missing required resultType") and showed the server as connected
with no tools. Every list here is answered whole, so each one now says
resultType: 'complete'. A legacy client ignores the extra field.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JdYPdDEK8VXHzQKj8Ppp2g
ralyodio
marked this pull request as ready for review
September 3, 2026 16:36
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Why
Claude Code now speaks MCP protocol revision 2026-07-28, which requires a list result to carry
resultType. The server already announces that revision throughserver/discover, but answeredtools/listandresources/listwithout the field, so the client rejected both and/mcpshowed rssamplifier as connected · tools fetch failed. The client log:What
Every list this server answers is answered whole, so
tools/list,resources/list,resources/templates/listandprompts/listnow sayresultType: 'complete'. A legacy client ignores the extra field. A test covers all four.Verified
node --test test/mcp.test.jsin apps/web: 25 pass, 0 fail.resultType.🤖 Generated with Claude Code
https://claude.ai/code/session_01JdYPdDEK8VXHzQKj8Ppp2g