AWS Cdk Development
zxkane/aws-skills
AWS Cloud Development Kit (CDK) expert for building cloud infrastructure with TypeScript/Python.
Authors, deploys, and troubleshoots AWS infrastructure using CDK with TypeScript or Python.
Install AWS Cdk
$ npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aws/agent-toolkit-for-aws aws-cdk --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/core-skills/aws-cdk .claude/skills/aws-cdk && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "aws-cdk" agent skill from https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdk into .claude/skills/aws-cdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aws-cdk", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdkType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aws/agent-toolkit-for-aws aws-cdk --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/core-skills/aws-cdk .agents/skills/aws-cdk && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "aws-cdk" agent skill from https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdk into .agents/skills/aws-cdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aws-cdk", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aws/agent-toolkit-for-aws aws-cdk --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/core-skills/aws-cdk .cursor/skills/aws-cdk && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "aws-cdk" agent skill from https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdk into .cursor/skills/aws-cdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aws-cdk", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aws/agent-toolkit-for-aws.git --path skills/core-skills/aws-cdk--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aws/agent-toolkit-for-aws aws-cdk --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/core-skills/aws-cdk .gemini/skills/aws-cdk && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "aws-cdk" agent skill from https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdk into .gemini/skills/aws-cdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aws-cdk", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aws/agent-toolkit-for-aws aws-cdkInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/core-skills/aws-cdk .github/skills/aws-cdk && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "aws-cdk" agent skill from https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdk into .github/skills/aws-cdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aws-cdk", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aws/agent-toolkit-for-aws aws-cdk --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/core-skills/aws-cdk .opencode/skills/aws-cdk && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "aws-cdk" agent skill from https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/core-skills/aws-cdk into .opencode/skills/aws-cdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aws-cdk", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
aws-cdk- GitHub stars
- 2.8k
- Token cost
- ~2.2k tokens
- SKILL.md length
- 826 words
- Files
- 11 (incl. references)
- Skills in repo
- 138
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Authors, deploys, and troubleshoots AWS infrastructure using CDK with TypeScript or Python.
- Tasks that involve Infrastructure as code
- SKILL.md covers Overview, Critical Warnings, Common Workflows and Fast Deployments — Hotswap vs…, plus 4 more sections
- Calls aws and npx
- Tasks that involve Deployment
What it does
AWS Cdk is an agent skill from aws/agent-toolkit-for-aws, published by the product's own GitHub organization. Authors, deploys, and troubleshoots AWS infrastructure using CDK with TypeScript or Python. Covers best practices, stack architecture, and construct patterns. Applies when writing CDK constructs, bootstrapping environments, running cdk deploy/synth/diff, fixing CDK or CloudFormation errors, planning stack structure, importing existing resources, resolving drift, or refactoring stacks without resource replacement.
Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 11 other files, including reference files (for example `references/bootstrap-and-project-setup.md`, `references/compliance-and-drift.md` and `references/construct-patterns.md`).
It sits in DevOps & Cloud, covering Infrastructure as code, Deployment and Refactoring. It works with Amazon Web Services, AWS CloudFormation, Python and TypeScript. The repository describes itself as: Official, AWS-supported MCP servers, skills, and plugins to help AI agents build on AWS. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Infrastructure as code
- Tasks that involve Deployment
- Tasks that involve Refactoring
Example prompts
- “/aws-cdk”
Requirements
- Python 3
- Node.js
- Docker
What it can do on your machine
Read from SKILL.md and the folder at commit bd49cc8. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
awsnpx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use aws and npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
AWS Cdk loads about 2.2k tokens when it runs, and up to ~23k if it reads all its reference files. Until then it costs about 106 tokens; SKILL.md has 826 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from aws/agent-toolkit-for-aws at commit bd49cc8, republished under its Apache-2.0 licence (© aws). 826 words, ~2,214 tokens.
Download SKILL.mdSave it as
.claude/skills/aws-cdk/SKILL.md (or your agent's skills folder). This skill also uses 10 other files; get the full folder from GitHub.- name
- aws-cdk
- description
- Authors, deploys, and troubleshoots AWS infrastructure using CDK with TypeScript or Python. Covers best practices, stack architecture, and construct patterns. Applies when writing CDK constructs, bootstrapping environments, running cdk deploy/synth/diff, fixing CDK or CloudFormation errors, planning stack structure, importing existing resources, resolving drift, or refactoring stacks without resource replacement.
- metadata.version
- 2
AWS CDK
Overview
Domain expertise for CDK construct authoring, deployment workflows, compliance, drift, importing resources, safe refactoring, and troubleshooting CDK CLI / CloudFormation errors.
When NOT to use: Raw CloudFormation YAML/JSON. SAM. Terraform/Pulumi. CI/CD beyond CDK Pipelines. Use builtin knowledge or specialized skills for these.
Critical Warnings
Deadly embrace: Removing a cross-stack reference deadlocks deployment (Export ... cannot be deleted as it is in use by ...). Preferred fix: weaken the reference first — CrossStackReferences.of($RESOURCE).produce(ReferenceStrength.BOTH) then WEAK, then remove (three deploys). Legacy fallback: two-deploy this.exportValue() recipe. See troubleshooting-deployment.
Construct ID changes cause replacement: Renaming/moving a construct changes its logical ID → CloudFormation replaces the resource (data loss for stateful resources). Always cdk diff before deploy. See refactor-and-prevent-replacement.
UPDATE_ROLLBACK_FAILED: Stack is stuck. Fix with cdk rollback $STACK or cdk rollback $STACK --orphan <LogicalId>. Express mode stacks are the exception — they cannot be rolled back at all. See troubleshooting-deployment.
Hotswap and express mode are development-only: --hotswap / --hotswap-fallback bypass CloudFormation and create drift on purpose; --express reports success before resources stabilize and disables automatic rollback. You MUST NOT use either in production. A failed --express deployment cannot be rolled back — recover by rolling forward with another --express deploy. See fast-deployments.
Non-empty S3 buckets persist after destroy: You MUST set both removalPolicy: DESTROY and autoDeleteObjects: true. Versioned buckets are worse — delete markers persist even after apparent deletion.
Common Workflows
| Task | Quick Command | Details |
|---|---|---|
| Bootstrap | cdk bootstrap aws://$ACCOUNT/$REGION | bootstrap-and-project-setup |
| New TS project | cdk init app --language typescript — use tsx, eslint-plugin-awscdk | bootstrap-and-project-setup |
| New Python project | cdk init app --language python — pin deps, use virtualenv | bootstrap-and-project-setup |
| Deploy | cdk synth --strict → cdk diff → cdk deploy | Always diff before deploy to production |
| Fast dev iteration | cdk deploy --hotswap-fallback, cdk watch, or cdk deploy --express — dev only, never production | fast-deployments |
| cdk-nag | Aspects.of(app).add(new AwsSolutionsChecks()) | compliance-and-drift |
| Drift | cdk drift $STACK (use --fail in CI) | compliance-and-drift |
| Import resource | cdk import (interactive or --resource-mapping for CI), cdk deploy --import-existing-resources | import-and-migrate |
| Refactor safely | cdk refactor --unstable=refactor — no property changes in same deploy | refactor-and-prevent-replacement |
Fast Deployments — Hotswap vs Express (dev only)
Both trade safety for speed and you MUST NOT use either in production.
Choosing between them: Use --hotswap / --hotswap-fallback for the fastest loop when you work mostly with hotswappable resources and drift does not matter. Use --express when drift is unacceptable, or your resources are not hotswappable.
Recovery workflows (hotswap drift via --revert-drift, rolling a failed --express deploy forward), the hotswappable-resource rules, and IAM/monitoring enforcement of the prod prohibition are all in the full guide: fast-deployments.
Show full SKILL.md (420 more words)Show less
Troubleshooting
| Error | Cause → Fix |
|---|---|
| DeployFailed / DeploymentError | CDK error isn't the root cause. cdk deploy $STACK --verbose, then cdk --unstable=diagnose diagnose $STACK (CLI ≥ 2.1120.0); else aws cloudformation describe-events --stack-name $STACK --filters FailedEvents=true — the first _FAILED event is the cause. Details |
| NoCredentials / ExpiredToken / AssumeRoleFailed | aws sts get-caller-identity + cdk doctor. Expired SSO, missing env, missing sts:AssumeRole. Details |
| Asset errors (CannotFindAsset, FailedToBundleAsset, AssetBuildFailed, AssetPublishFailed) | Path wrong, Docker not running, or bootstrap bucket perms. Use path.join(__dirname, ...). Details |
| AppRequired | Add "app": "npx tsx bin/my-app.ts" to cdk.json. Details |
| AnnotationErrors | Fix the underlying issue; suppress with NagSuppressions only as last resort. Details |
| ConcurrentReadLock / ConcurrentWriteLock | rm -rf cdk.out then re-run. Parallel CI: --output ./cdk.out.$BUILD_ID. Details |
| BootstrapVersionValidation | Re-bootstrap. Match --qualifier everywhere. Details |
| DependencyCycle | Extract shared resource into third stack or use SSM for late-binding. Details |
| UnresolvedAccount | Set explicit env: { account, region } on stack. Commit cdk.context.json. Details |
| NoStacksMatched | CDK uses logical ID (2nd constructor arg), not CFN name. cdk list to find IDs. Details |
| Cannot find module (synth time) | Run npx tsc --noEmit, check cdk.json app path matches tsconfig.json outDir, delete stale .js files. Python: activate venv. Details |
| V1 import paths / duplicate aws-cdk-lib | V1 @aws-cdk/* imports, wrong Construct import, duplicate lib copies in monorepos. Details |
| Lambda Cannot find module (runtime) | Wrong handler value, missing AWS SDK v3 migration, Python deps not bundled. Details |
| API Gateway multi-stage conflicts | Set deploy: false on RestApi, create Deployment and Stage explicitly. Details |
Change didn't deploy under --hotswap | Changes to non-hotswappable resources are silently ignored and only logged — the command still reports success. Read the output; use --hotswap-fallback to force a CloudFormation deployment instead. Details |
Failed --express deploy / can't roll back | Express mode cannot use the Rollback Stack API, and a standard deploy MUST NOT be used to recover it. Roll forward: fix the cause, then cdk deploy $STACK --express. Details |
| Unexpected drift on a dev stack | Hotswap and cdk watch create drift by design. Until reverted, the live resources — not CloudFormation's records — are authoritative. Reconcile with cdk deploy $STACK --revert-drift, which uses Drift Aware Changesets to bring live resources in line with the template (updates reality to match desired state; does NOT rewrite CF records to match drifted resources). Details |
Construct Patterns
Prefer L2. Use L1 with Mixins/Facades when L2 lacks a property. Escape hatches: node.defaultChild → addPropertyOverride. See construct-patterns.
Additional Resources
- Search AWS documentation for "CDK Developer Guide", "CDK API Reference" and "CDK Pipelines" respectively
Security Considerations
- OIDC for CI/CD credentials (no static keys)
--custom-permissions-boundaryon bootstrapgrant*()for inter-resource IAMcdk-nag+--strictin CI- Stateful resources in own stack with
terminationProtection: true - Commit
cdk.context.json
© aws, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 10 other files (references) in skills/core-skills/aws-cdk of aws/agent-toolkit-for-aws.
- SKILL.md
- references/bootstrap-and-project-setup.md
- references/compliance-and-drift.md
- references/construct-patterns.md
- references/fast-deployments.md
- references/import-and-migrate.md
- references/refactor-and-prevent-replacement.md
- references/troubleshooting-credentials.md
- references/troubleshooting-deployment.md
- references/troubleshooting-synth.md
- references/v1-to-v2-migration.md
Open the folder on GitHubat commit bd49cc8
Compare with similar skills
AWS Cdk next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| AWS Cdk this skillaws/agent-toolkit-for-aws | 2.8k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| AWS Cdk Developmentzxkane/aws-skills | 367 | 2 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Cloudformationitsmostafa/aws-agent-skills | 1.2k | — | ~2.5k | Automated safety check: Pass | MIT | |
| Devops Deploysickn33/agentic-awesome-skills | 47k | 2 repos | ~1.9k | Automated safety check: Pass | MIT | |
| AWS Cloudformation Task Ecs Deploy Ghgiuseppe-trisciuoglio/developer-kit | 355 | — | ~2.8k | Automated safety check: Notes | MIT | |
| AWS Sam Bootstrapgiuseppe-trisciuoglio/developer-kit | 355 | — | ~954 | Automated safety check: Notes | MIT |
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Related
Categories
Questions about AWS Cdk
What does AWS Cdk do?
Authors, deploys, and troubleshoots AWS infrastructure using CDK with TypeScript or Python. AWS Cdk is an agent skill from aws/agent-toolkit-for-aws, published by the product's own GitHub organization. Authors, deploys, and troubleshoots AWS infrastructure using CDK with TypeScript or Python.
When should I use AWS Cdk?
AWS Cdk fits situations like: tasks that involve Infrastructure as code; tasks that involve Deployment; tasks that involve Refactoring.
How do I install AWS Cdk in Claude Code?
Run `npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a claude-code`. Or copy the skill folder (skills/core-skills/aws-cdk in aws/agent-toolkit-for-aws) into .claude/skills/aws-cdk in your project. Claude Code loads it when a task matches its description.
How do I install AWS Cdk in Codex?
Run `npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a codex`. Or copy the skill folder (skills/core-skills/aws-cdk in aws/agent-toolkit-for-aws) into .agents/skills/aws-cdk in your project. Codex loads it when a task matches its description.
Can I use AWS Cdk in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aws/agent-toolkit-for-aws --skill aws-cdk -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/aws-cdk, .gemini/skills/aws-cdk, .github/skills/aws-cdk and .opencode/skills/aws-cdk in your project.
What does AWS Cdk need to run?
Going by SKILL.md and its folder, AWS Cdk needs the command-line tools its instructions call (aws and npx). Our summary lists: Python 3; Node.js; Docker.
Does AWS Cdk access the network?
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is AWS Cdk safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does AWS Cdk use?
AWS Cdk is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does AWS Cdk use?
About 2.2k tokens (SKILL.md is roughly 8.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 21k tokens, read only when the agent opens those files.
What are the alternatives to AWS Cdk?
Skills that share tags, products or a category with AWS Cdk: AWS Cdk Development (zxkane/aws-skills, 367 stars), Cloudformation (itsmostafa/aws-agent-skills, 1.2k stars), Devops Deploy (sickn33/agentic-awesome-skills, 47k stars) and AWS Cloudformation Task Ecs Deploy Gh (giuseppe-trisciuoglio/developer-kit, 355 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains AWS Cdk?
aws (a GitHub organization, an official publisher) maintains it in aws/agent-toolkit-for-aws, which has 2,816 GitHub stars. The repository holds 138 skills in this directory. The repository was last updated on October 7, 2026.
Source: aws/agent-toolkit-for-aws on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.