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Agent skill

Slack Watch

by blockscout in blockscout/frontend

Deprecated — use slack-subscribe. An agent skill from blockscout/frontend.

Custom licenceAuto-check passedBackend & APIs

Install Slack Watch

skills CLI
$ npx skills add blockscout/frontend --skill slack-watch -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install blockscout/frontend slack-watch --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/blockscout/frontend.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/slack-watch .claude/skills/slack-watch && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
slack-watch
GitHub stars
307
Token cost
~1.7k tokens
SKILL.md length
837 words
Files
2 (incl. scripts)
Skills in repo
23
Repo updated
First seen
Licence
Custom licence

At a glance

Deprecated — use slack-subscribe. An agent skill from blockscout/frontend.

  • Works in 2 steps: Ready → Run
  • Tasks that involve Realtime and WebSockets
  • SKILL.md covers 1. Ready, 2. Run and Setup
  • Calls node

What it does

Slack Watch is an agent skill from blockscout/frontend. Deprecated — use slack-subscribe. Watch Slack threads for new replies over a Socket Mode WebSocket; only while no Honk session is connected to Slack.

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts.

It sits in Backend & APIs, covering Realtime and WebSockets. It works with Slack. The repository describes itself as: Front-end application for Blockscout chain explorer.

When your agent uses it

  • Tasks that involve Realtime and WebSockets

Example prompts

  • “/slack-watch”

Workflow steps

2 steps, taken from the step headings in SKILL.md.

  1. Ready
  2. Run

What it can do on your machine

Read from SKILL.md and the folder at commit 9438622. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/, which the agent can run.

    Shell commands in SKILL.md call:

    • node

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Slack Watch loads about 1.7k tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 837 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~40
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 837 words (~1,684 tokens).

“A push subscription to replies in specific Slack threads — DM threads and channel threads both. The script holds one Socket Mode WebSocket, acks every event, and prints one line per new reply — nothing else. It knows nothing about…”

— opening of SKILL.md by blockscout, Custom licence
name
slack-watch
disable-model-invocation
true

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (scripts) in .agents/skills/slack-watch of blockscout/frontend.

  • SKILL.md
  • scripts/slack-watch

Open the folder on GitHubat commit 9438622

Compare with similar skills

Slack Watch next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Slack Watch compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Slack Watch this skillblockscout/frontend307—~1.7kAutomated safety check: PassCustom licence
Supabase Development and Debuggingsupabase/agent-skills2.7k3 repos~3.6kAutomated safety check: PassMIT
Use Yaakmountain-loop/yaak19k—~1.9kAutomated safety check: PassMIT
Gemini Live API Devgoogle-gemini/gemini-skills4.3k—~4.6kAutomated safety check: PassApache-2.0
Web3 PolymarketPolymarket/agent-skills1912 repos~2kAutomated safety check: PassNone
GraphQL ArchitectJeffallan/claude-skills12k1 repos~1.3kAutomated safety check: PassMIT

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More from blockscout/frontend

All 23 skills in this repo

  • Slack File

    blockscout/frontend

    Download Slack attachments by file ID, or upload local files into a Slack thread.

    307 GitHub stars~540 tokensUpdated yesterday
    Auto-check passed

  • Add Env Var

    blockscout/frontend

    Step-by-step checklist for adding a new NEXTPUBLIC environment variable.

    307 GitHub stars~1.6k tokensUpdated yesterday
    Auto-check: notes

  • Add New Page

    blockscout/frontend

    Scaffold a new page (index / detail / general) and optionally wire it to API data.

    307 GitHub stars~3.9k tokensUpdated yesterday
    Auto-check passed

  • Create Issue

    blockscout/frontend

    Create a GitHub issue from the available context. An agent skill from blockscout/frontend.

    307 GitHub stars~1.1k tokensUpdated yesterday
    Auto-check passed

  • Deprecate Env Var

    blockscout/frontend

    Checklist for deprecating a NEXTPUBLIC environment variable — immediate removal, or a grace period before a later removal.

    307 GitHub stars~2.6k tokensUpdated yesterday
    Auto-check: notes

  • Publish Beta Types

    blockscout/frontend

    Publish a beta version of a @blockscout/-types npm package and pin it here.

    307 GitHub stars~1.1k tokensUpdated yesterday
    Auto-check passed

Works with

Categories

Questions about Slack Watch

What does Slack Watch do?

Deprecated — use slack-subscribe. An agent skill from blockscout/frontend. Slack Watch is an agent skill from blockscout/frontend. Deprecated — use slack-subscribe.

When should I use Slack Watch?

Slack Watch fits situations like: tasks that involve Realtime and WebSockets.

How do I install Slack Watch in Claude Code?

Run `npx skills add blockscout/frontend --skill slack-watch -a claude-code`. Or copy the skill folder (.agents/skills/slack-watch in blockscout/frontend) into .claude/skills/slack-watch in your project. Claude Code loads it when a task matches its description.

How do I install Slack Watch in Codex?

Run `npx skills add blockscout/frontend --skill slack-watch -a codex`. Or copy the skill folder (.agents/skills/slack-watch in blockscout/frontend) into .agents/skills/slack-watch in your project. Codex loads it when a task matches its description.

Can I use Slack Watch in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add blockscout/frontend --skill slack-watch -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/slack-watch, .gemini/skills/slack-watch, .github/skills/slack-watch and .opencode/skills/slack-watch in your project.

What does Slack Watch need to run?

Going by SKILL.md and its folder, Slack Watch needs the command-line tools its instructions call (node).

Does Slack Watch access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Slack Watch safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Slack Watch use?

Slack Watch has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Slack Watch use?

About 1.7k tokens (SKILL.md is roughly 6.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Slack Watch?

Skills that share tags, products or a category with Slack Watch: Supabase Development and Debugging (supabase/agent-skills, 2.7k stars), Use Yaak (mountain-loop/yaak, 19k stars), Gemini Live API Dev (google-gemini/gemini-skills, 4.3k stars) and Web3 Polymarket (Polymarket/agent-skills, 191 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Slack Watch?

blockscout (a GitHub organization) maintains it in blockscout/frontend, which has 307 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on October 7, 2026.

Source: blockscout/frontend on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.