A Slack monitoring tool that watches direct messages and channel threads for new replies through a live connection. It prints one line for each genuinely new reply in a local coding session.

Use it to monitor Slack threads during a live local Claude Code or Cursor session.

It helps you notice replies in Slack without repeatedly checking conversations by hand.

How blockscout/frontend configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to blockscout/frontend. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/blockscout/frontend/main/.agents/skills/slack-watch/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/blockscout/frontend

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/blockscout/frontend/slack-watch/github.svg)](https://agentmods.dev/skills/blockscout/frontend/slack-watch)

Your own site

<a href="https://agentmods.dev/skills/blockscout/frontend/slack-watch"><img src="https://agentmods.dev/badge/skills/blockscout/frontend/slack-watch/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/blockscout/frontend/slack-watch"><img src="https://agentmods.dev/badge/skills/blockscout/frontend/slack-watch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,684 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00035	$0.01684
Opus 5.5	$0.00014	$0.00674
Sonnet 5.5	$0.00007	$0.00337
Haiku 4.5	$0.00003	$0.00168

Measured 1mo ago against content hash d3ac950af57c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

slack-watch scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

.agents/skills/slack-watch/SKILL.md · 105 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

scripts/slack-watch 8.7 KB

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed · +2 lines · -15 tokens per session d3ac950af57c
2mo ago First seen · 103 lines · 50 tokens per session scan C 32ba922de997

Subscribe to this mod's changes

slack-watch is a skill published in the GitHub repository blockscout/frontend (310 stars, last pushed yesterday), with no licence file. It adds 35 tokens to every session and 1,684 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

blockchain ethereum explorer

slack-watch next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
slack-watchblockscout/frontend	Skill	310	yesterday	none	C	35	Claude Code
analyzing-ethereum-smart-contract-vulnerabilitiesmukul975/Anthropic-Cybersecurity-Skills	Skill	36k	2mo ago	Apache-2.0	A	49	Claude Code
foundry-testingPaulRBerg/foundry-template	Skill	642	7d ago	MIT	A	64	Codex
analyzing-ethereum-smart-contract-vulnerabilitiesxalgorix/xalgorix	Skill	1.3k	yesterday	Apache-2.0	A	49	Claude Code, Codex
blockchain-ethereumj4flmao/agent-skills	Skill	38	3d ago	MIT	A	242	Claude Code, Codex
lineth-quickstartLFDT-Lineth/lineth-monorepo	Skill	127	today	Apache-2.0	A	228	Claude Code, Codex
blockchain-expertpersonamanagmentlayer/pcl	Skill	44	11d ago	Apache-2.0	A	63	Claude Code

frontend: Skill for Claude Code