Conciseness

The ~30-line body is efficient and assumes competence ("follow the procedure exactly"), but the Overview section ("Domain expertise for connecting AWS Lambda functions to DynamoDB tables, including IAM execution role creation, function deployment, DynamoDB stream configuration, and event source mapping setup") largely restates the frontmatter description, which is a minor instance of trimmable redundancy. It is above the 3 anchor (mostly efficient with some unnecessary explanation) but not the lean every-token-earns-its-place of 5.

Actionability

The main path is a pointer ("follow the procedure exactly. See [Lambda-DynamoDB connection procedure](references/lambda-dynamodb-connection.md)") and troubleshooting offers specific checks ("Check the IAM role has `AWSLambdaDynamoDBExecutionRole` attached", "adjust the batch size"), but the body itself contains no executable commands or code — key operational detail is entirely delegated to the reference. This sits between the 2 anchor (high-level hints, missing steps) and the 4 anchor (mostly executable concrete code/commands), landing on 3; it is not 4 because nothing in the body itself is copy-paste executable.

Workflow Clarity

The single instruction "follow the procedure exactly" with a clearly-linked procedure is unambiguous, and the referenced procedure file does contain sequenced steps with validation checkpoints (dependency verification, parameter confirmation, explicit user approval before infrastructure changes). It is not 5 because the body gives no in-line summary of the sequence or its checkpoints, so the agent must open the reference to know the workflow shape; it is above 3 because validation is present and the sequence is well defined in the linked file.

Progressive Disclosure

The body is a clean overview: short sections, one real one-level-deep reference (references/lambda-dynamodb-connection.md, verified to exist and contain the detailed procedure), clearly signaled with markdown links in both the main section and troubleshooting. Content is appropriately split between quick diagnosis in SKILL.md and full procedure in the reference, matching the 5 anchor's well-signaled structure.

Specificity

Names the domain and several concrete capabilities ("IAM roles, stream event source mapping, and read/write permissions"), comparable to the anchor listing several specific actions with minor gaps. It stops short of the comprehensive multi-action coverage of the 5 anchor, whose example enumerates four-plus discrete operations.

Completeness

Clearly answers both: what ("Connects an AWS Lambda function to DynamoDB with IAM roles, stream event source mapping, and read/write permissions") and when ("Use when setting up Lambda-DynamoDB integration, processing DynamoDB stream events, or deploying serverless event-driven architectures") with concrete trigger phrases, mirroring the 5-anchor example. It is not the 4 anchor because the 'when' clause is already explicit and specific rather than needing more detail.

Trigger Term Quality

Good natural keyword coverage — "Lambda-DynamoDB integration", "processing DynamoDB stream events", "deploying serverless event-driven architectures" — matching phrases users would actually say. A few natural variants are missing (e.g., "event source mapping" as a trigger, "IAM", "AWS console/CLI"), keeping it below the 5 anchor's synonym-and-extension completeness.

Distinctiveness Conflict Risk

Occupies a clear niche (Lambda-DynamoDB integration specifically) with distinct triggers, minimal overlap risk with generic AWS or DynamoDB skills. The named-service pairing makes false triggers unlikely, matching the 5 anchor; it is not the 4 anchor since there is no meaningful overlap with a closely related skill's territory.