feat: add Enterprise Grid channel name resolution fallback #184
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Summary
#channel-namesyntax when theSearchChannelsAPI fails withteam_is_restrictederror (common in Enterprise Grid)search.messagesAPI within:#channel-namequery to extract channel IDProblem
In Slack Enterprise Grid environments with multiple workspaces, the
search.modules.channelsAPI (used bySearchChannels) returnsteam_is_restrictedeven when the user has access to the channel. This prevents using#channel-namesyntax for message operations.However, the
search.messagesAPI handles channel names server-side and works correctly - Slack resolvesin:#channel-nameinternally before searching.Solution
SearchChannelsAPI (works in most environments)team_is_restrictederror, usesearch.messageswithin:#channel-namequery and extract channel ID from resultsChanges
pkg/provider/api.go: AddSearchChannelsmethod toSlackAPIinterface andMCPSlackClientpkg/handler/conversations.go:resolveChannelIDWithFallback: Main resolution with Enterprise Grid fallbackresolveUserDMChannelWithFallback: DM channel resolution with user search fallbackresolveChannelViaSearch: Extract channel ID from search resultsisTeamRestrictedError: Detect the Enterprise Grid restriction errorparamFormatChannel/paramFormatUser: Updated to use fallback methodsTesting
SearchChannelsconsistently returnsteam_is_restricted#channel-namesyntax now resolves correctly via the search fallbackSearchChannelspathDepends On