feat(ec2): add Amazon EC2 integration by waleedlatif1 · Pull Request #9304 · simstudioai/sim

waleedlatif1 · 2026-10-22T18:28:23Z

Summary

Add an Amazon EC2 block with 25 operations, backed by @aws-sdk/client-ec2 as in-process tool operations (lib/internal/ec2), authenticated with an AWS access key like the other AWS blocks
Networking: describe Elastic IPs, NAT gateways, route tables, VPCs, subnets, security groups, internet gateways, network interfaces
Instances: describe instances / instance status, start, stop (hibernate, force), reboot, terminate
Elastic IPs: allocate, associate, disassociate, release
EBS and tags: describe volumes / snapshots, create snapshot, create / delete tags, plus describe regions and availability zones
Describe operations accept EC2 filters (JSON, with a wand), default to 100 results per page with a nextToken, and skip pagination when explicit IDs are given (EC2 rejects MaxResults alongside IDs)
AllocateAddress and CreateSnapshot run with SDK retries off, since neither takes a client token; snapshots default to OwnerIds: self for list calls so public snapshots aren't returned
ID lists accept comma-separated strings, arrays, or JSON array strings; tags accept objects, [{Key, Value}], or the block's tag table (including on the Agent tool path)
Icon, docs page with intro, templates, and skills

Type of Change

New feature

Testing

Ran every describe operation through the tool → operation → transform path against a live AWS account with read-only keys; checked pagination across pages, ID lookups, filters, null/empty optional inputs, input validation failures, and AWS error surfacing on a write with a malformed instance ID
check-canvas-sentences --block=ec2 (25/25), check-block-registry.ts origin/staging, check:tool-request-boundary, check:tool-metadata, check:docs, check:integration-catalog, check:deployment-config, check:bare-icons, check:source-conventions, check:utils, check:comment-hygiene, check:unused-exports, check:explicit-any, and related audits
tools/request-transport.test.ts, lib/internal/tool-operations/registry.server.test.ts, blocks/blocks.test.ts
Scoped tsc over the EC2 files; full type-check, check:audits, and test suites run in CI

Checklist

Code follows project style guidelines
Self-reviewed my changes
Tests added/updated and passing (new tests pass the test-audit authoring gate)
No new warnings introduced
I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

🤖 Generated with Claude Code

vercel · 2026-10-22T18:28:30Z

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Oct 22, 2026 7:02pm UTC

cubic-dev-ai

All reported issues were addressed across 51 files

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greptile-apps · 2026-10-22T18:37:10Z

Confidence Score: 5/5

[High impact] The PR appears safe to merge; no blocking issues were found.

Summary

Adds an Amazon EC2 integration with 34 operations for instances, networking, Elastic IPs, EBS, and tags.

Workflows and agents can now use Amazon EC2 through one integration.
Workflows can start, stop, reboot, or terminate EC2 instances.
Workflows can find, allocate, attach, detach, and release Elastic IPs.
Workflows can inspect VPC networking and change security-group ingress rules.
Workflows can manage EBS storage and tags on EC2 resources.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A[Workflow or agent] --> B[EC2 tool]
  B --> C[Check inputs]
  C --> D[AWS EC2 SDK]
  D --> E[Map AWS response]
  E --> F[Tool output]

_{Reviews (3) · Last reviewed commit: "fix(ec2): generate filters with the json..." · Reviewed by Greptile}

… rule, and EBS delete operations - Add describe_network_acls, describe_vpc_endpoints, describe_vpc_peering_connections, describe_images, describe_key_pairs, authorize/revoke_security_group_ingress, delete_volume, and delete_snapshot - Regenerate block successor names (fixes the lint job's repo audit) - Merge the two tag tables into one tags field so fixed tags work in the Agent editor - Keep a __proto__ tag key by building records with Object.fromEntries - Pass [{Key, Value}] tag arrays through the block instead of dropping them - Use a filter example each describe operation actually accepts - Report revoked: false when a revoke matched no rule; mark the ingress target clauses core

waleedlatif1 · 2026-10-22T18:42:23Z

@greptile

waleedlatif1 · 2026-10-22T18:42:25Z

@cubic-dev-ai review this PR

cubic-dev-ai · 2026-10-22T18:42:31Z

@cubic-dev-ai review this PR

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cubic-dev-ai

All reported issues were addressed across 61 files

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waleedlatif1 · 2026-10-22T19:02:28Z

@greptile

waleedlatif1 · 2026-10-22T19:02:29Z

@cubic-dev-ai review this PR

cubic-dev-ai · 2026-10-22T19:02:36Z

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

cubic-dev-ai

No issues found across 61 files

Confidence score: 5/5

Automated review surfaced no issues in the provided summaries.
No files require special attention.

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feat(ec2): add Amazon EC2 integration

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waleedlatif1 requested a review from a team as a code owner October 22, 2026 18:28

vercel Bot deployed to Preview October 22, 2026 18:33

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cubic-dev-ai Bot reviewed Oct 22, 2026

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Comment thread apps/sim/lib/internal/ec2/schema.ts

Comment thread apps/sim/blocks/blocks/ec2.ts Outdated

Comment thread apps/sim/tools/ec2/describe_availability_zones.ts Outdated

greptile-apps Bot reviewed Oct 22, 2026

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Comment thread apps/sim/lib/internal/ec2/client.ts Outdated

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Comment thread apps/sim/blocks/blocks/ec2.ts Outdated

fix(ec2): generate filters with the json-array wand

2756566

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waleedlatif1 merged commit 53f4e91 into staging Oct 22, 2026
61 checks passed

waleedlatif1 deleted the feat/ec2-integration branch October 22, 2026 19:10

waleedlatif1 mentioned this pull request Oct 22, 2026

v0.9.32: ec2 integration, nextjs minor version bump, logs perf improvements, memory pressure reduced #9320

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waleedlatif1 commented Oct 22, 2026

Summary

Type of Change

Testing

Checklist

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Confidence Score: 5/5

Summary

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