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 connecting-vpcs-with-peeringgit 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/connecting-vpcs-with-peering)<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/connecting-vpcs-with-peering"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/connecting-vpcs-with-peering/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/connecting-vpcs-with-peering"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/connecting-vpcs-with-peering.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 | $0.00072 | $0.00377 |
| Opus 5 | $0.00036 | $0.00188 |
| Sonnet 5 | $0.00014 | $0.00075 |
| Haiku 4.5 | $0.00007 | $0.00038 |
Grade A, and why
connecting-vpcs-with-peering 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 8d 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.
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.
What it actually says
Connecting VPCs with Peering
Overview
Domain expertise for establishing private network connectivity between two VPCs using VPC peering. Covers the full lifecycle: creating the peering connection, accepting it, updating route tables in both VPCs, configuring DNS resolution, and adjusting security groups for cross-VPC traffic. Supports same-region, cross-region, and cross-account peering scenarios.
Create a VPC peering connection
To establish a VPC peering connection between two VPCs, follow the procedure exactly. See VPC peering connection procedure.
The procedure requires the requester and accepter VPC IDs at minimum. It validates both VPCs exist, checks for CIDR overlap, creates and accepts the peering, updates all route tables, and configures DNS resolution.
Troubleshooting
Peering stuck in pending state
Cross-account connections require manual acceptance from the accepter account. Same-account connections with auto_accept: true should transition automatically.
Route creation fails
Check for existing routes with the same destination CIDR. Replace existing routes instead of creating new ones.
DNS resolution not working
Both VPCs must have DNS resolution and DNS hostnames enabled in their VPC settings, not just the peering connection options.
Cross-region connectivity issues
Verify routes are added in both regions and security groups allow traffic from the peer VPC's CIDR blocks.
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.
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.
- 8d ago First seen · 37 lines · 72 tokens per session scan A 3f3de66294f6
connecting-vpcs-with-peering is a skill published in the GitHub repository aws/agent-toolkit-for-aws (2,591 stars, last pushed yesterday), licensed Apache-2.0. It adds 72 tokens to every session and 377 once invoked, about $0.0004 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 2026-09-03.
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