# slack_get_channel_history

Get message history from a Slack channel

Agent View of the PolicyLayer registry record for `slack_get_channel_history`. HTML page: https://policylayer.com/tools/io-github-alifanov-scopegate/slack-get-channel-history

## Facts

- Tool: `slack_get_channel_history`
- Server: ScopeGate (`https://mcp.scopegate.cloud/{api_key}`) — https://policylayer.com/tools/io-github-alifanov-scopegate.md
- Homepage: https://github.com/alifanov/scopegate
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "slack_get_channel_history",
    "arguments": {}
  }
}
```

## Why slack_get_channel_history is rated Low

This tool retrieves message data from Slack channels. Although it accesses communication history which may contain sensitive information (medium severity due to potential data sensitivity), the operation itself is read-only with no destructive, modifying, or executable side effects. The blast radius is limited to information disclosure of already-existing messages.

From the tool's own definition: "Tool name 'slack_get_channel_history' and description 'Get message history from a Slack channel' indicate retrieval of historical messages without modification or deletion. The action is a query/fetch operation with no side effects."

## Use case

AI agents call slack_get_channel_history to retrieve information from ScopeGate without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ScopeGate:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "slack_get_channel_history": {}
  }
}
```

## Other tools on ScopeGate (384)

- `airtable_delete_record` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/airtable-delete-record.md
- `calendar_delete_event` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/calendar-delete-event.md
- `calendly_cancel_event` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/calendly-cancel-event.md
- `drive_delete_file` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/drive-delete-file.md
- `email_delete_message` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/email-delete-message.md
- `googleAds_remove_extension` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googleads-remove-extension.md
- `googleAds_remove_keyword` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googleads-remove-keyword.md
- `googleAds_remove_negative_keyword` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googleads-remove-negative-keyword.md
- `googleTagManager_delete_container` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-container.md
- `googleTagManager_delete_environment` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-environment.md
- `googleTagManager_delete_folder` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-folder.md
- `googleTagManager_delete_tag` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-tag.md
- `googleTagManager_delete_trigger` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-trigger.md
- `googleTagManager_delete_user_permission` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-user-permission.md
- `googleTagManager_delete_variable` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-variable.md
- `googleTagManager_delete_version` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-version.md
- `googleTagManager_delete_workspace` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/googletagmanager-delete-workspace.md
- `linkedin_delete_post` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/linkedin-delete-post.md
- `notion_delete_block` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/notion-delete-block.md
- `salesforce_delete_record` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/salesforce-delete-record.md
- `searchConsole_delete_site` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/searchconsole-delete-site.md
- `searchConsole_delete_sitemap` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/searchconsole-delete-sitemap.md
- `threads_delete_thread` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/threads-delete-thread.md
- `twitter_delete_tweet` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/twitter-delete-tweet.md
- `twitter_unbookmark_tweet` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/twitter-unbookmark-tweet.md
- `youtube_delete_caption` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/youtube-delete-caption.md
- `youtube_delete_channel_section` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/youtube-delete-channel-section.md
- `youtube_delete_comment` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/youtube-delete-comment.md
- `youtube_delete_playlist` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/youtube-delete-playlist.md
- `youtube_delete_video` — Destructive — https://policylayer.com/tools/io-github-alifanov-scopegate/youtube-delete-video.md
- …and 354 more: https://policylayer.com/tools/io-github-alifanov-scopegate.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-alifanov-scopegate · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-alifanov-scopegate