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    Infra Drift & Cost Sentinel

    1

    Catches security drift, cost leaks, and state drift in your Terraform before you apply — with a prioritized fix list, not just a wall of warnings.

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    Infra Drift & Cost Sentinel

    Infra Drift & Cost Sentinel

    Example session with this skill installed

    Here's my Terraform for our app's infra — can you check it for security issues, wasted spend, or anything that looks like it drifted from what's actually deployed before I run apply?

    • Read your context and instructions
    • Compiled the infra drift

    Stack summary: AWS Terraform project, 6 resources reviewed (S3, security group, EC2, EBS, RDS).

    SeverityCategoryResourceIssueFix
    CriticalSecurityaws_db_instance.mainpublicly_accessible = true on a prod-named DBSet publicly_accessible = false; access via VPC/bastion or SSM tunnel instead
    CriticalSecurityaws_s3_bucket_acl.logs_aclacl = "public-read", no public-access-block resource presentRemove the ACL, add aws_s3_bucket_public_access_block with all four flags true
    CriticalSecurityaws_security_group.db_sgIngress on port 5432 open to 0.0.0.0/0Restrict cidr_blocks to the app tier's SG or VPC CIDR
    HighSecurityaws_db_instance.mainstorage_encrypted = falseSet storage_encrypted = true (note: requires recreation — plan for a maintenance window)
    HighCostaws_instance.web_devm5.4xlarge on a resource tagged Environment = devRight-size to t3.large/m5.large for dev workloads pending actual usage data
    HighCostaws_ebs_volume.orphanVolume defined with no aws_volume_attachment anywhere in the projectConfirm it's unused, then remove — orphaned EBS volumes bill indefinitely
    LowHygieneAll resourcesNo tags/cost-allocation tags except web_devAdd a consistent tagging block (Environment, Owner, CostCenter) so future cost tooling can attribute spend

    Top 3 actions:

    1. Lock down the DB — it's both public and unencrypted, the worst combination in this file.
    2. Close the security group's 5432 ingress to 0.0.0.0/0 before this ever reaches prod.
    3. Remove the public ACL on the logs bucket.

    What wasn't checked: No terraform plan or state file was provided, so state-drift checks (manual changes, unexpected replace/destroy) couldn't run — only code-level checks. Sending a terraform plan -out=plan.tfplan output would sharpen that section.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Identify production-breaking state drift before running terraform apply.Detect over-provisioned cloud resources to reduce monthly spend.Find public-facing storage and overly permissive IAM roles in IaC.Prioritize infrastructure technical debt by severity and effort.

    About this skill

    Most linters tell you what's wrong. This skill tells you what actually matters and in what order.

    Feed it your Terraform files, a terraform plan output, or a CloudFormation/Pulumi template. It runs three passes — security drift (public buckets, open security groups, unencrypted storage, overly broad IAM), cost leaks (oversized dev instances, orphaned volumes, missing lifecycle policies), and state drift (unexpected replace/destroy, manual console changes not reflected in code) — then hands back a severity-ranked findings table with a real one-line fix for each issue, plus a "top 3 actions" callout.

    No generic advice, no padded findings to look thorough — if something's fine, it says so. Built for AWS-first stacks with GCP/Azure pattern coverage included.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
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      Unzip into your skills folder

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    Security scanned

    Verified clean 22 days ago

    • Passed all security checks, Safe to install

    Listed22 days ago

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