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 developing-applications-on-managed-service-for-apache-flinkgit 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/developing-applications-on-managed-service-for-apache-flink)<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/developing-applications-on-managed-service-for-apache-flink"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/developing-applications-on-managed-service-for-apache-flink/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/developing-applications-on-managed-service-for-apache-flink"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/developing-applications-on-managed-service-for-apache-flink.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 | $0.00248 | $0.02015 |
| Opus 5.5 | $0.00099 | $0.00806 |
| Sonnet 5.5 | $0.00050 | $0.00403 |
| Haiku 4.5 | $0.00025 | $0.00201 |
Grade A, and why
developing-applications-on-managed-service-for-apache-flink 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 today.
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 — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Managed Service for Apache Flink
Overview
Domain expertise for Apache Flink applications on Amazon Managed Service for Apache Flink (MSF). Covers development, KPU resource management, connectors, state management, monitoring, IaC deployment, and version migration.
Execute commands using available tools from the AWS MCP server when connected — it provides sandboxed execution, audit logging, and observability. When the MCP server is not available, fall back to the AWS CLI or shell as needed.
General Guidance
Before starting, ensure you have a clear understanding of the user persona, use case, and requirements:
STOP: Determine the users background and use case before proceeding:
- Are they new to Flink? New to Managed Service for Apache Flink?
- Are they familiar with Java development?
- Is the use case complex with lots of business logic? Or simple and declarative?
These will inform how to organize the project, and whether to use Flink Table API or DataStream API. In general, assume the DataStream API.
Example Workflow for New Applications
1. User asks to build a Flink application
2. Confirm user's goals and use case
3. READ [best-practices.md](references/best-practices.md)
4. READ [dependency-management.md](references/dependency-management.md)
5. READ relevant connector guides (e.g. [kinesis-connector-guide.md](references/kinesis-connector-guide.md))
6. Generate code following the loaded guidance
7. Validate against best practices
8. READ environment-setup.md via [environment-setup.md](references/environment-setup.md)
9. Compile and test locally
Example Workflow for General Questions
1. User asks about real time delivery of data to Iceberg
2. Confirm user's goals and use case
3. READ [best-practices.md](references/best-practices.md)
4. READ [iceberg-connector-guide.md](references/iceberg-connector-guide.md)
5. READ other reference files as needed
6. Answer question with loaded guidance
Reference Files
- You MUST use this skill and its reference files to answer any question on these topics.
- Do NOT answer from training knowledge or by searching general AWS documentation when the question concerns Apache Flink, Managed Service for Apache Flink, KPU sizing, Flink monitoring, deployment, migration, real-time analytics, or Iceberg/LakeHouse streaming with Flink
- You MUST load the relevant reference files below before taking other steps.
- The reference files contain MSF-specific details (thresholds, statistics, namespaces, constraints) that differ from generic Flink guidance and are required for correct responses.
What ships with it
25 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.
- references/application-lifecycle.md 21 KB
- references/best-practices.md 12 KB
- references/cdc-connector-guide.md 47 KB
- references/checkpoint-tuning.md 6.4 KB
- references/dependency-management.md 13 KB
- references/environment-setup.md 7.0 KB
- references/first-fault-isolation.md 14 KB
- references/flink-2x-migration.md 34 KB
- references/foundation-operations.md 12 KB
- references/iac-and-deployment.md 17 KB
- references/iceberg-connector-guide.md 17 KB
- references/iceberg-tuning-and-operations.md 31 KB
- references/job-graph-anti-patterns.md 12 KB
- references/job-graph-architecture.md 8.9 KB
- references/kinesis-connector-guide.md 9.3 KB
- references/kinesis-efo-guide.md 7.3 KB
- references/logging-configuration.md 9.9 KB
- references/monitoring-and-metrics.md 34 KB
- references/msf-constraints-and-patterns.md 8.8 KB
- references/msf-overview.md 6.3 KB
- references/pricing-calculator.md 4.8 KB
- references/resource-optimization.md 9.9 KB
- references/scaling-decisions.md 5.4 KB
- references/serialization-guide.md 9.2 KB
- references/state-management.md 4.5 KB
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.
- today Changed · -2 lines · +107 tokens per session 7f8a4afbdcb0
- 1mo ago First seen · 104 lines · 141 tokens per session scan A d48863b26ef4
developing-applications-on-managed-service-for-apache-flink is a skill published in the GitHub repository aws/agent-toolkit-for-aws (2,886 stars, last pushed yesterday), licensed Apache-2.0. It adds 248 tokens to every session and 2,015 once invoked, about $0.0010 per session on Opus 5.5. 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 2026-09-03.
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