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AWS Sam Bootstrap Agent Skill

Provides AWS SAM bootstrap patterns: generates `template.yaml` and `samconfig.toml` for new projects via `sam init`, creates SAM templates for existing Lambda/CloudFormation code migration, validates build/package/deploy workflows, and configures local testing with `sam local invoke`. Use when the user asks about SAM projects, `sam init`, `sam deploy`, serverless deployments, or needs to bootstrap/migrate Lambda functions with SAM templates.

2k tokens
context cost
the whole folder, loaded on every use
3
files
instructions only
0
copies elsewhere
how many repositories repackaged it
316
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/giuseppe-trisciuoglio/developer-kit --skill aws-sam-bootstrap

The instruction itself

15 sections, as written by the author

AWS SAM Bootstrap

Overview

Generates SAM project artifacts for greenfield and migration scenarios. Creates the minimum required files (template.yaml, samconfig.toml, events/), validates with sam build, and configures sam deploy workflows following AWS SAM conventions.

When to Use

  • User needs to start a new AWS SAM project (sam init, sam deploy)
  • User wants to migrate existing Lambda functions or CloudFormation resources to SAM templates
  • User asks about SAM CLI commands (sam init, sam build, sam local invoke, sam deploy)
  • User needs to create or update template.yaml or samconfig.toml for serverless deployments
  • User wants to configure local testing with sam local invoke for Lambda functions

Instructions

1) Classify Scenario

  • New project: no Lambda structure exists. Run sam init to scaffold.
  • Existing project migration: Lambda/CloudFormation resources exist. Create template.yaml manually.

2) Select Runtime and Package Type

Use current non-deprecated runtimes. Package type: Zip (default) or Image (container/native deps).

3) Bootstrap New Projects

sam init
sam build
sam local invoke <LogicalFunctionId> -e events/event.json
sam deploy --guided

4) Bootstrap Existing Projects

  • Inspect current Lambda handlers, runtime, and dependency layout
  • Create template.yaml with Transform: AWS::Serverless-2016-10-31
  • Map existing resources to AWS::Serverless::Function and related SAM resources
  • Create samconfig.toml with deploy defaults and environment overrides
  • Add events/event.json payload samples for local invocation
  • Validate with sam validate and sam build before deploy

5) Required Artifacts

.
├── template.yaml
├── samconfig.toml
└── events/
    └── event.json

See reference templates: examples.md, migration-checklist.md

6) Validation Checklist

  • sam validate succeeds
  • sam build succeeds
  • template.yaml has correct logical IDs and handlers
  • samconfig.toml contains deploy parameters for target environments

Examples

New SAM Project

sam init  # Interactive scaffold
sam build
sam local invoke HelloFunction -e events/event.json
sam deploy --guided

Migrate Existing Lambda

  • Detect handler/runtime → create template.yaml with SAM transform
  • Add samconfig.toml with stack_name, capabilities, resolve_s3
  • Add events/event.json → validate with sam build

Full templates in references/examples.md.

Best Practices

  • One deployable function first, then expand; keep migration-first PRs minimal
  • Keep samconfig.toml committed for deterministic deployments
  • Use environment-specific sections ([default], [prod]) instead of CLI flags
  • Map existing handler paths to SAM conventions during migration

Constraints and Warnings

  • SAM CLI must be installed locally for command execution
  • CAPABILITY_IAM is required when IAM resources are created
  • Container image packaging requires Docker availability
  • Existing projects may require refactoring handler paths to match SAM conventions
  • sam deploy --guided writes local configuration; review before committing

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How to use it

Copy the folder

Take giuseppe-trisciuoglio/aws-sam-bootstrap from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

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