aws-lambda-docs

Official documentation guidance for AWS Lambda, a cloud service that runs code without managing servers. It covers functions, deployment, triggers, permissions, scaling, networking, and monitoring.

In plain words
What is it for?
Use it to create, package, deploy, invoke, secure, scale, monitor, and troubleshoot Lambda functions connected to services such as SQS, SNS, Kinesis, DynamoDB Streams, or EventBridge.
Why use it?
It helps account for Lambda’s runtime limits, startup delays, event handling, and access rules. Answers are based on AWS’s documentation.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/cookiemonsterdev/agents-skills/aws-lambda-docs
Any agent
npx skills add cookieMonsterDev/agents-skills --skill aws-lambda-docs
Clone the repo
git clone --depth 1 https://github.com/cookieMonsterDev/agents-skills

Made for: Claude Code, Codex.

Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,295 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00089 $0.01295
Opus 5 $0.00044 $0.00647
Sonnet 5 $0.00018 $0.00259
Haiku 4.5 $0.00009 $0.00129

Measured yesterday against content hash 0fc3fc69be6d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

aws-lambda-docs 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.

docs-skills/aws-lambda-docs/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AWS Lambda questions are easy to answer from stale memory or generic serverless patterns that ignore runtime limits, cold starts, and event source mappings. Use this skill to ground answers in the official AWS Lambda documentation and return the closest authoritative page instead of improvising deployment advice.

When to Use

Use this skill when the request is about:

  • Lambda concepts: functions, handlers, runtimes, and execution environment
  • Creating functions, deployment packages (zip), and container images
  • Runtimes, layers, and custom runtimes
  • Function configuration: memory, timeout, ephemeral storage, and architecture (x86_64/arm64)
  • Environment variables, parameters, and secrets integration
  • Triggers and event source mappings (SQS, SNS, Kinesis, DynamoDB Streams, EventBridge, etc.)
  • Lambda URLs, function URLs, and API Gateway integration patterns documented for Lambda
  • VPC configuration, ENI behavior, and networking constraints
  • IAM execution roles, resource-based policies, and permission boundaries
  • Concurrency, reserved concurrency, and provisioned concurrency
  • SnapStart, response streaming, and runtime-specific features
  • Monitoring: CloudWatch Logs, metrics, X-Ray, and Lambda Insights
  • Troubleshooting timeouts, throttling, permission errors, and cold starts

Do not use this skill for:

  • AWS CLI install or global CLI options. Use aws-cli-docs instead.
  • General IAM policy language unrelated to Lambda resources. Use aws-iam-docs for IAM fundamentals.
  • ECS/Fargate long-running services. Use aws-ecs-docs instead.
  • API Gateway service configuration when the question is only about API Gateway, not Lambda integration.
  • Step Functions workflow design unless the question is about Lambda as a task target in Lambda docs.

Workflow

1. Classify the request

Decide which bucket the question belongs to before searching:

  • Getting started and core concepts
  • Creating and deploying functions (zip and container image)
  • Runtimes, layers, and handler models
  • Configuration: memory, timeout, environment, and architecture
  • Triggers, event sources, and asynchronous invocation
  • Networking and VPC
  • Security, IAM roles, and resource policies
  • Concurrency, scaling, and performance
  • Monitoring, logging, and tracing
  • Advanced features (URLs, SnapStart, extensions)
  • Troubleshooting and quotas

Read the full file on GitHub · 113 lines

Files

What ships with it

2 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. yesterday First seen · 113 lines · 89 tokens per session scan A 0fc3fc69be6d

Subscribe to this mod's changes

aws-lambda-docs is a skill published in the GitHub repository cookieMonsterDev/agents-skills (4 stars, last pushed 12d ago), licensed MIT. It adds 89 tokens to every session and 1,295 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 2026-08-31.

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