# List Lambda functions

Canonical URL: https://docs.fuse.init.inc/integrations/aws/actions/lambda.functions.list

List Lambda functions with page size capped at 50. Optionally include published versions. Requires lambda:ListFunctions.

Action ID: `lambda.functions.list`
Provider: AWS (`aws`)
Contract version: 1

## Risk and exposure

- Risk: Read
- Idempotency: Safe — Safe to retry without coordination; repeats do not create additional side effects.
- Availability: Default
- Exposure: REST, SDK, MCP
- MCP hints: readOnly=true, destructive=false, idempotent=true, openWorld=true

## Required scopes

- `lambda:ListFunctions`

## Input schema fields

- `region`
- `page_size`
- `cursor`
- `include_versions`

## Output schema fields

- `functions`
- `functions[]`
- `functions[].name`
- `functions[].arn`
- `functions[].runtime`
- `functions[].handler`
- `functions[].code_size_bytes`
- `functions[].description`
- `functions[].timeout_seconds`
- `functions[].memory_size_mb`
- `functions[].last_modified_at`
- `functions[].version`
- `functions[].package_type`
- `functions[].architectures`
- `functions[].architectures[]`
- `functions[].state`
- `next_cursor`

Provider overview: https://docs.fuse.init.inc/integrations/aws
Actions index: https://docs.fuse.init.inc/integrations/aws/actions
Exact canonical JSON contract: https://docs.fuse.init.inc/api/catalog/v1/providers/aws/actions/lambda.functions.list
Deployment-effective discovery: https://api.fuse.init.inc/v1/tenants/%7Btenant_id%7D/providers/aws/actions