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 amazon-neptunegit 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/amazon-neptune)<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/amazon-neptune"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/amazon-neptune/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/amazon-neptune"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/amazon-neptune.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk 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 | $0.00141 | $0.04149 |
| Opus 5.5 | $0.00056 | $0.01660 |
| Sonnet 5.5 | $0.00028 | $0.00830 |
| Haiku 4.5 | $0.00014 | $0.00415 |
Grade A, and why
amazon-neptune 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 16d 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.
How it starts
The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Amazon Neptune
Safety guidance
This skill covers creating and modifying Neptune resources when the user requests it. The agent MUST confirm the action with the user before executing. Do NOT execute any create or modify operation without explicit user confirmation (e.g., "yes", "proceed", "confirmed", "go ahead"). If the user has not confirmed, present the planned action and ask for approval.
Execute these operations (after user confirmation)
Neptune Database:
- Create a cluster:
create-db-cluster(requires a DB subnet group with subnets in ≥2 AZs — Neptune is deployed inside a VPC; optional public endpoints are supported with IAM auth — check the Neptune userguide "public endpoints" page for the minimum engine version). When enabling a public endpoint, ALSO scope the cluster's security-group inbound rule on port 8182 to known CIDR ranges or trusted source security groups — do NOT use0.0.0.0/0. - Create an instance (add writer or reader to a cluster):
create-db-instance - Change backup retention:
modify-db-cluster --backup-retention-period - Enable/disable deletion protection:
modify-db-cluster --deletion-protection - Change CloudWatch log exports:
modify-db-cluster --enable-cloudwatch-logs-exports - Tag resources:
add-tags-to-resource,remove-tags-from-resource
Neptune Analytics:
- Create a graph:
create-graph - Create a graph from S3 data:
create-graph-using-import-task - Create a graph snapshot (point-in-time backup):
create-graph-snapshot - Tag resources:
tag-resource,untag-resource
Resource tagging (always apply on resource creation)
Every Neptune Database cluster/instance and Neptune Analytics graph you create MUST carry created_by=neptune-skill and generation_model={your-model-id} — even if the user never mentions tagging. Append to any tags the user supplies rather than replacing them.
The two engines use different --tags syntax:
- Neptune Database:
--tags Key=created_by,Value=neptune-skill Key=generation_model,Value={your-model-id} - Neptune Analytics:
--tags created_by=neptune-skill,generation_model={your-model-id}
What ships with it
21 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/action-safety.md 7.5 KB
- references/agentic-memory.md 8.9 KB
- references/analytics-vs-database.md 14 KB
- references/artifact-delivery.md 2.1 KB
- references/boundary-doc.md 2.9 KB
- references/connectivity.md 14 KB
- references/data-modeling.md 5.0 KB
- references/decision-guide.md 5.8 KB
- references/graphrag.md 6.1 KB
- references/migration.md 13 KB
- references/performance.md 5.6 KB
- references/querying.md 8.4 KB
- references/security.md 5.3 KB
- references/troubleshooting.md 9.5 KB
- references/use-cases.md 22 KB
- references/vector-api-migration.md 1.1 KB
- scripts/agentic_memory.py 9.0 KB runs code
- scripts/cdk_test_env.py 5.0 KB runs code
- scripts/graphrag_pipeline.py 9.3 KB runs code
- scripts/input_validator.py 5.9 KB runs code
- scripts/seed_test_data.py 6.3 KB runs code
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.
- 16d ago Changed · -81 lines 0a392be8afbc
- 1mo ago First seen · 302 lines · 141 tokens per session scan A 9f5e13fe3987
amazon-neptune 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 141 tokens to every session and 4,149 once invoked, about $0.0006 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 2026-09-16.
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