The skill is fairly long but most content earns its place—the custom resource handler table, asset migration strategies, and TypeScript handling are all non-obvious domain knowledge. However, some sections like 'CRITICAL SUCCESS REQUIREMENTS' repeat what's covered in the workflow and output format, and phrases like 'Follow this workflow exactly and in this order' are unnecessary padding. The 'Working with the User' section is also somewhat redundant.

The skill provides fully executable bash commands (jq queries, aws CLI, pulumi config set), concrete TypeScript code examples with correct/incorrect patterns, specific handler-to-resource mapping tables, and precise tool invocations. Nearly every instruction is copy-paste ready or references a specific tool/file.

The workflow is clearly sequenced (1→2→3) with explicit sub-steps, validation checkpoints (section 3.1 requires pulumi preview with zero changes), and feedback loops (if synth fails, inspect cdk.json; if import has changes, investigate and fix). The 'WHEN INFORMATION IS MISSING' section adds an important pre-flight check. Destructive operations (import) have clear validation requirements.

The skill references external files (cdk-convert.md, cdk-importer.md, cloudformation-id-lookup.md) and external documentation URLs, which is good progressive disclosure. However, no bundle files were provided to verify these references exist, and the SKILL.md itself is quite long (~250 lines) with detailed inline content (custom resource tables, asset strategies) that could potentially be split into referenced files. The structure is reasonable but the main file carries a lot of weight.