Impact Measurement

Measure the quantitative cost of adding or changing an artifact: token injection cost, payload size, file growth, and context window consumption. All measurements come from tool calls against actual files — never from memory or estimates without a shown source.

This skill is one research angle in a multi-angle technical research system. It runs independently alongside api-state and ecosystem-research angles and returns its findings to the calling technical-researcher orchestrator.

This skill covers the cost dimension only. For blast-radius (which files break, what needs migration), use the @dh:impact-analyst agent.

Workflow

Step 1 — Scope

Measurement target received from orchestrator:

$ARGUMENTS

Identify from the above: the specific files or artifacts to measure, what is being added or changed, and which cost dimensions apply (token injection, discovery payload size, file size growth, item count change).