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block-kit

Skill from slackapi/slack-mcp-plugin

Productivity No risky patterns found curated slackuicomponentapimcp

Install

npx skills add slackapi/slack-mcp-plugin --skill block-kit

Runs the open skills CLI and installs the skill for your agent (Claude Code, Codex, Cursor …). Alternatively copy the skill folder into .claude/skills/ or upload it in Claude.ai under Settings → Skills.

What does the block-kit skill do?

Use when a developer wants to build or validate Block Kit layouts for Slack messages, modals, or Home tabs: message layouts, modals/forms/dialogs, Home tab interfaces, interactive buttons or menus, or modifying existing Block Kit JSON. Also trigger on any Slack UI component (sections, actions, inputs, headers, alerts, tables, carousels), the words "blocks" or "Block Kit Builder", a request to preview rendered blocks, or pasted JSON like "type": "section". Validates via the blocks.validate API method.

Description from the SKILL.md in the source repository.

Questions about block-kit

What does the block-kit skill do?

Use when a developer wants to build or validate Block Kit layouts for Slack messages, modals, or Home tabs: message layouts, modals/forms/dialogs, Home tab interfaces, interactive buttons or menus, or modifying existing Block Kit JSON. Also trigger on any Slack UI component (sections, actions, inputs, headers, alerts, tables, carousels), the words "blocks" or "Block Kit Builder", a request to preview rendered blocks, or pasted JSON like "type": "section". Validates via the blocks.validate API method.

How do I install block-kit?

In a terminal: npx skills add slackapi/slack-mcp-plugin --skill block-kit. The skills CLI asks which agents to install it for. In Claude.ai you can upload the skill folder as a ZIP under Settings → Skills.

Which agents can use block-kit?

Skills use the open SKILL.md format, which Claude Code, Claude.ai, the Claude API, OpenAI Codex, Cursor, Gemini CLI and other agents support.

Is block-kit safe to use?

Our automatic check found no risky patterns (piped shell scripts, hidden characters, secret access, prompt overrides). It is not a full audit – read the SKILL.md and any scripts before installing.

More skills from slackapi/slack-mcp-plugin

create-slack-app
slackapi/slack-mcp-plugin

Use when a developer wants to create, scaffold, or bootstrap a new Slack app or agent from scratch with the Slack CLI, or scaffold the project for a new app just created in App Settings (`--app`, `--template`, `--team`). Covers prerequisites, authentication, choosing a workspace to install into, and creating a project from a Bolt (JS or Python) template locally. Trigger on "create a Slack app", "new Bolt app", "start a Slack agent".

Productivity curated
No risky patterns found
deploy-slack-app
slackapi/slack-mcp-plugin

Use when a developer wants to deploy, host, or run a Slack app somewhere it keeps working after the local process stops, or mentions Railway, Heroku, `railway up`, `git push heroku`, `slack deploy`, a `deploy` hook in `.slack/hooks.json`, hosting a Socket Mode or Request URL (HTTP) Bolt app, deploying from Windows, graduating an app out of a developer sandbox, or tearing down a deployed app.

DevOps & Cloud curated
No risky patterns found
slack-api
slackapi/slack-mcp-plugin

Use when a developer asks which Slack Web API method does something, needs a method's OAuth scopes or token type, wants to call or test a family.method endpoint (chat.postMessage, conversations.history, users.info, views.open), is handling cursor pagination (next_cursor) or rate limits (tier/ratelimited/Retry-After), or is debugging errors like missing_scope, invalid_auth, or channel_not_found. Also trigger on a pasted slack.com/api/ URL or docs.slack.dev/reference/methods link.

Development curated
No risky patterns found
slack-docs
slackapi/slack-mcp-plugin

Use when answering a conceptual or how-to question about Slack platform features, or when asked to look up, fetch, or summarize a docs.slack.dev page, including a pasted docs.slack.dev link. Covers finding and reading official Slack docs as clean markdown.

Productivity curated
No risky patterns found
slack-messaging
slackapi/slack-mcp-plugin

Use when writing, drafting, scheduling, or improving a Slack message, announcement, or reply sent via the Slack MCP tools (slack_send_message, slack_send_message_draft, slack_schedule_message). Covers Slack markdown formatting, message structure, thread etiquette, reactions, and scheduling, and points to the right dialect for canvases and Block Kit.

Productivity curated
No risky patterns found
slack-search
slackapi/slack-mcp-plugin

Use when locating messages, files, channels, or people across Slack, or gathering context before answering, with the search MCP tools (slack_search_public, slack_search_public_and_private, slack_search_channels, slack_search_users). Covers search modifiers (in:, from:, before:), file-type filters, natural-language vs. keyword search, and reading results in context.

Research & Web curated
No risky patterns found
test-slack-app
slackapi/slack-mcp-plugin

Use when a developer wants to test, try out, smoke-test, verify, or confirm that a Slack app built with the Slack CLI (or a plain Bolt app) actually works, by running it in a developer sandbox or a Free Team, never a workspace with real users, with `slack run` and exercising its real slash commands, shortcuts, events, actions, modals, App Home, and assistant surfaces. Also covers `slack doctor` and `slack manifest validate` health checks before hands-on testing.

Testing & QA curated
Worth a look

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