mcp: add ttl for list results (SEP-2549)#1008
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Remove the separate toolCache (name->*Tool map) used by CallTool to inject tool definitions into the request context for transport-layer features (x-mcp-header annotations). Instead, source tool definitions from the existing TTL cache (toolsCache) via a new ClientSession.lookupTool helper that walks cached ListToolsResult entries. toolsCache is now always populated by ListTools (independent of DisableCache and TTL hint), so the x-mcp-header feature keeps working even when caching is disabled. The TTL hint still governs whether ListTools returns a cached result on the next call.
…or_list_results # Conflicts: # mcp/client.go
…e server to support cache scope metadata.
…e values into result types
…cacheable results in server handlers
…e handling for list methods
guglielmo-san
changed the title
nahapetyan-serob
approved these changes
Jun 18, 2026
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Fixes #994