Conciseness

The body is lean and assumes competence, but the 8-bullet "The procedure handles" list substantially duplicates the capability list already given in the Overview paragraph ("Covers AMI selection, instance type recommendation, network configuration, IAM role creation..."), a trimmable redundancy that keeps it below the 5 anchor's every-token-earns-its-place bar.

Actionability

Gives a concrete, unambiguous directive ("follow the procedure exactly. See [EC2 instance launch procedure](references/launch-ec2-instance-with-best-practices.md)") plus executable troubleshooting detail ("aws ec2 get-console-output", key permissions "400", Session Manager alternative); it stops short of 5 because the body carries no inline executable command for the main launch flow itself.

Workflow Clarity

The body delegates to a real 17-step procedure containing explicit validation checkpoints ("Wait for Instance to Reach Running State", "Verify Instance Configuration", "Review and Confirm Launch Configuration"), and the body itself adds error-recovery guidance (retry another AZ/instance type, inspect console output) — matching the 5 anchor's clear sequence, validation, and feedback loops; the launch operation is not destructive/batch so no cap applies.

Progressive Disclosure

A ~35-line overview body with both references clearly signaled as markdown links, one level deep into a single self-contained 1697-line reference file (verified to exist with no nested .md references); the split — quick overview and troubleshooting inline, bulk detail external — matches the 5 anchor.

Specificity

Names the concrete action ("Launches an EC2 instance with secure, cost-efficient defaults") and lists six specific capability areas ("AMI selection, burstable instance sizing, least-privilege IAM roles, hardened security groups, encrypted EBS volumes, and comprehensive tagging"), which is comprehensive coverage of the launch pipeline rather than the minor-gaps profile of the 4 anchor.

Completeness

Explicitly answers both what (the launch action plus enumerated defaults) and when ("Use when deploying new EC2 instances following AWS best practices for security and cost optimization") with a concrete trigger phrase; the when-clause is specific and explicit, exceeding the 4 anchor's vague-when profile.

Trigger Term Quality

Good natural keyword coverage ("EC2 instance", "deploy", "AWS", "best practices") but misses common user variations like "spin up", "create", or "provision an instance" — matching the 4 anchor's "good keyword coverage; a few natural terms missing" rather than 5's synonym-and-extension-level completeness.

Distinctiveness Conflict Risk

"Launching EC2 instances" with security/cost hardening is a clear niche with distinct triggers; the description is unlikely to fire for unrelated skills, matching the 5 anchor's minimal conflict risk rather than the 4 anchor's notable overlap with closely related skills.