ToolTrust
A2/100
korotovsky

slack-mcp-server

mcp1.3.0

@korotovsky

The most powerful MCP Slack Server with no permission requirements, Apps support, GovSlack, DMs, Group DMs and smart history fetch logic.

By korotovsky | 14 findings | Scanned 10/26/2026 | tooltrust-scanner/v0.3.20 | 1.9k

Repository health

Popularity and maintenance signals alongside the security grade.

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Stars

1.9k

current snapshot

Forks

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GitHub metadata pending

Contributors

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GitHub metadata pending

Last commit

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GitHub metadata pending

Last release

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GitHub metadata pending

Release version

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Latest GitHub release

Stars trend

Daily star additions · githubarchive_bq · observed through Oct 3, 2026 · export updated Oct 26, 2026

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No observed star events yet.

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Pull request activity

Weekly PR events · githubarchive_bq · observed through Oct 3, 2026 · export updated Oct 26, 2026

2026-09-212026-09-21

Data quality: observed_events. Charts show observed events, not a reconstructed historical total.

GoMITDeveloper ToolsLast scan Oct 26, 2026
2 Low12 Info

Risk Summary

Safe With Normal Controls

Dep Visibility is the main signal, but overall risk remains within an acceptable range.

Potential impact: This finding indicates the tool should be reviewed before it is trusted.

Recommended action: No high-risk findings were detected in this scan, but you should still apply least-privilege defaults and rescan after changes.

Suggested policy: keep this tool behind manual approval, do not allow unattended runs, and re-scan after narrowing risky permissions.

Security Findings (14)

  • LowAS-002

    ⚠️Excessive Permissions ×2

    input schema exposes 11 properties (threshold: 10)

    Slack_GetMessages

    input schema exposes 12 properties (threshold: 10)

    Slack_GetThreadMessages

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • InfoAS-014

    ℹ️Dependency Inventory Unavailable ×11

    Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

    Arcade_ListAppsSlack_GetConversationMetadataSlack_GetMessagesSlack_GetThreadMessagesSlack_GetUsersInConversationSlack_GetUsersInfoSlack_InviteUsersToChannelSlack_ListConversationsSlack_ListUsersSlack_SendMessageSlack_WhoAmI

    Fix: Review and remediate the identified issue.

  • InfoAS-002

    ⚠️Excessive Permissions

    Slack_WhoAmI:declared capabilities: filesystem access

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

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