Slack Skills and MCP integration boundaries
Separate development instruction packages from authorized workspace connections, then verify each client.
Models generate and reason. Agents use tools to work on tasks. A harness manages an agent’s environment. MCP connects tools and data. Skills are reusable task guidance.
Current task
Slack Skills and MCP integration boundaries
Validation
Separate development instruction packages from authorized workspace connections, then verify each client.
Prerequisites
Skills grant no workspace access; supported MCP clients require OAuth and administrator approval.
API key
Skills grant no workspace access; supported MCP clients require OAuth and administrator approval.
Model / service
Local-model designs need a specific model and tool-capability checks; device connection itself does not need an LLM.
Agent / runtime
Only reviewed tools are listed; AI bridging and autonomous planning remain implementation and validation work unless explicitly documented.
Hardware
Hardware needs depend on software, model, quantization and task; no minimum or smooth-performance benchmark was run.
Permissions & risks
Workspace data may enter model context; a local stdio server is not a sandbox, so restrict files and credentials.
API key
Skills grant no workspace access; supported MCP clients require OAuth and administrator approval.
Platform policy
This plugin currently bundles MCP only for Claude Code/Cursor; Codex has neither that connection nor slack-search.
Deployment preference
Skills are instruction files; Slack MCP is a remote service. Neither combination should be described as an offline connection.
Validation
Planned: verify provenance/version and client capabilities, then read a test channel after user OAuth and revoke access. No plugin installed or account connected.
Validation
Official documentation reviewed; this site has not run this combination or tested the device.
Limits & boundaries
Announcements and current client support can differ; Skill-format support does not prove MCP compatibility. Prices and regions remain unknown.
Alternatives
If prerequisites are unmet, use a read-only or manual flow, then revalidate alternatives below without inheriting this compatibility status.
Alternatives
microsoft-graph
n8n
Cost
Not verified
Price not verified; check software, model, API, hardware and hosting costs separately.
Implementation steps
- 01Verify official plugin provenance and client support; Codex installs Skills only, without this plugin’s Slack MCP.
- 02Review instructions/scripts and pin versions; app development alone need not connect a workspace.
- 03If MCP is needed, the user completes supported-client OAuth; search a synthetic test channel first and approve writes separately.
Connection method
Not tested by BlueFish
POST https://mcp.slack.com/mcpLimits & boundaries
- Announcements and current client support can differ; Skill-format support does not prove MCP compatibility. Prices and regions remain unknown.
- Official documentation reviewed; this site has not run this combination or tested the device.
Permissions & risks
- Workspace data may enter model context; a local stdio server is not a sandbox, so restrict files and credentials.
- This plugin currently bundles MCP only for Claude Code/Cursor; Codex has neither that connection nor slack-search.
Original sources
- Slack official documentation · src-slack-skills-plugin ↗
docs.slack.dev · 2026-10-16 · Official documentation
- Slack official documentation · src-slack-mcp-server ↗
docs.slack.dev · 2026-10-16 · Official documentation
- Slack official documentation · src-slack-skills-announcement ↗
docs.slack.dev · 2026-10-16 · Official documentation
- Agent Skills official documentation · src-agent-skills-format ↗
agentskills.io · 2026-10-16 · Official documentation
- Model Context Protocol official documentation · src-mcp-local-security ↗
github.com · 2026-10-16 · Official documentation