Agent Toolkit for AWS is a collection of AWS-supported MCP servers, skills, plugins, commands, and hooks that help AI coding agents build, deploy, and manage applications on AWS. It is used by developers working with AWS services through agents such as Claude Code, Codex, Cursor, and Kiro. The catalogue entries are the toolkit's own agent extensions for AWS development and operations.
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.
npx skills add aws/agent-toolkit-for-aws --skill aws-messaging-and-streaminggit clone --depth 1 https://github.com/aws/agent-toolkit-for-awsWrote 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.
[](https://agentmods.dev/skills/aws/agent-toolkit-for-aws/aws-messaging-and-streaming)<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/aws-messaging-and-streaming"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/aws-messaging-and-streaming/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.
<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/aws-messaging-and-streaming"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/aws-messaging-and-streaming.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00188 | $0.02646 |
| Opus 5 | $0.00094 | $0.01323 |
| Sonnet 5 | $0.00038 | $0.00529 |
| Haiku 4.5 | $0.00019 | $0.00265 |
Grade A, and why
aws-messaging-and-streaming 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AWS Messaging & Streaming Services
When answering AWS messaging and streaming questions, verify specific numbers, versions, limits, and behavioral details from service-specific skills or official AWS documentation. When uncertain, search skills or docs rather than guessing. Fabricated configuration options or incorrect version numbers are worse than admitting uncertainty.
When a question asks about recommended configurations (CloudWatch alarm settings, thresholds, missing data treatment), search for the service-specific skills or documentation rather than relying on general best practices.
Overview
Domain expertise for choosing and using AWS services that move data between producers and consumers. This skill covers two fundamental patterns — messaging and streaming — and the AWS services that implement each. It also marks the boundary with customer communication — messages delivered to people rather than to application components — and routes those questions to the skill or AWS documentation that owns each channel (see Customer Communications (Application-to-Person)). Use this skill to decide which pattern fits a workload, select the right service, and understand how services integrate with each other.
For specific guidance on individual AWS services, see reference files or service-specific Skills.
Streaming and Messaging
What Is Messaging?
Messaging enables decoupled, asynchronous communication between components. A producer sends a message; one or more consumers receive and process it. Once processed, the message is typically deleted. Messaging services handle delivery guarantees, retries, and dead-letter routing.
Key characteristics:
- Messages are consumed once (point-to-point) or fanned out (pub/sub), then removed
- No replay — once acknowledged, a message is gone
- Designed for command/request workloads, task distribution, and event notification
What Is Streaming?
Streaming enables ordered, durable, high-throughput continuous data flow. Producers append records to a log; consumers read from positions in that log. Records persist for a configurable retention period regardless of consumption.
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.
- yesterday Changed b96708d32b00
- 9d ago First seen · 140 lines · 188 tokens per session scan A f3a1baba95b3
aws-messaging-and-streaming is a skill published in the GitHub repository aws/agent-toolkit-for-aws (2,569 stars, last pushed today), licensed Apache-2.0. It adds 188 tokens to every session and 2,646 once invoked, about $0.0009 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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