agentcore-harness-slackbot

agentcore-harness-slackbot is a skill for Codex from aws-samples/sample-agent-greenhouse. It costs 142 tokens per session (2,698 once invoked), scanned A, original, MIT-0.

A guide for connecting an Amazon Bedrock AgentCore Harness to Slack. Slack is a team chat app, and the connection sends an agent's response into a conversation as it is produced.

In plain words
What is it for?
Use it to create or reuse an AgentCore Harness, receive Slack events, and deliver incremental agent responses through Slack.
Why use it?
It removes the need to design the Slack connection and response-streaming flow from scratch.

Skill for Codex ✓ vendor

Written for Codex: agents/openai.yaml present.

Good fit Use it to create or reuse an AgentCore Harness, receive Slack events…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aws-samples/sample-agent-greenhouse/agentcore-harness-slackbot
About the project

Agent Greenhouse is a framework for building specialist AI agents on Amazon Bedrock, with shared infrastructure such as memory, hooks, guardrails, tools, observability, and deployment. It helps teams create multiple domain-specific agents without duplicating their underlying runtime setup. The catalogue contains skills for working with the project.

aws-samples/sample-agent-greenhouse · 21 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add aws-samples/sample-agent-greenhouse --skill agentcore-harness-slackbot
Clone the repo
git clone --depth 1 https://github.com/aws-samples/sample-agent-greenhouse

Made for: Codex.

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.

agentmods badge for agentcore-harness-slackbot

README.md
[![agentmods](https://agentmods.dev/badge/skills/aws-samples/sample-agent-greenhouse/agentcore-harness-slackbot.svg)](https://agentmods.dev/skills/aws-samples/sample-agent-greenhouse/agentcore-harness-slackbot)
Your own site
<a href="https://agentmods.dev/skills/aws-samples/sample-agent-greenhouse/agentcore-harness-slackbot"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-agent-greenhouse/agentcore-harness-slackbot.svg" alt="Measured on agentmods" height="20"></a>
Per session 142 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,698 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00142 $0.02698
Opus 5 $0.00071 $0.01349
Sonnet 5 $0.00028 $0.00540
Haiku 4.5 $0.00014 $0.00270

Measured 7d ago against content hash 4a594afb4343, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agentcore-harness-slackbot scanned grade A with 0 findings 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 7d ago.

The scan reads SKILL.md. This mod also ships 21 executable files (assets/slack-adapter-template/infra/bin/app.ts, assets/slack-adapter-template/infra/jest.config.js, assets/slack-adapter-template/infra/lib/slack-adapter-stack.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/agentcore-harness-slackbot/SKILL.md · 343 lines

The source is not reproduced here

Licensed MIT-0

The repository is licensed MIT-0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

32 files 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.

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.

  1. 7d ago First seen · 343 lines · 142 tokens per session scan A 4a594afb4343

Subscribe to this mod's changes

agentcore-harness-slackbot is a skill published in the GitHub repository aws-samples/sample-agent-greenhouse (21 stars, last pushed 1mo ago), licensed MIT-0. It adds 142 tokens to every session and 2,698 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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