Conciseness

The body is lean and directive — no explanations of concepts Claude already knows, just project-specific rules, and it explicitly delegates schemas to references ("Keep this file short. Load full schemas and field-level rules from..."). Not 5 because of small redundancies: the reference list appears twice (top of file and again in step 3), and "Keep this file short" is an authoring note rather than runtime instruction.

Actionability

Concrete, executable guidance throughout: exact paths to inspect, a verbatim question to ask ("Do you already have a research idea, experimental results, or are you starting from scratch?"), and an explicit condition→startStage mapping table. Not 5 because key terms like "blueprint" and "sections.*" are only defined in the referenced files, and there are no inline examples of the JSON structures the steps ultimately produce.

Workflow Clarity

Five clearly sequenced steps with decision branches (step 1 branches on existing brief; step 5 gives distinct rules for content vs. structural changes) and a confirmation checkpoint in step 4 ("Summarize and confirm next action"). Not 5 because there is no explicit verification that written JSON conforms to the schema — the workflow trusts the generation rules without a validate-and-fix loop.

Progressive Disclosure

Textbook structure: a short overview with all four references listed, each annotated with its content ("Read only what you need"), all files verified to exist in references/ at exactly one level deep with no nested references. Content is appropriately split — SKILL.md holds the workflow, references hold schemas and generation logic.

Specificity

Names concrete actions — "Guides the user through an interactive conversation" and "generates research_brief.json and tasks.json" — with specific output artifacts. Falls short of 5 because broader capabilities (stage selection, iteration/regeneration, summarizing existing state) are only implied through the trigger list rather than stated as actions.

Completeness

Explicitly answers both: what ("interactive conversation to define their research project, then generates research_brief.json and tasks.json") and when ("Use when starting a new project, when no research_brief.json exists, when the user wants to start from a specific pipeline stage, or when the user wants to redefine their research pipeline") with four concrete trigger conditions. Clearly matches the top anchor; the when-clause is fully explicit rather than implied.

Trigger Term Quality

Natural trigger phrases include "starting a new project", "start from a specific pipeline stage", and "redefine their research pipeline", plus the concrete file name research_brief.json. Not 5 because common variations like "plan my research", "set up tasks", or mentions of tasks.json as a trigger are missing.

Distinctiveness Conflict Risk

Occupies a clear niche (research pipeline planning) anchored by distinctive artifacts (research_brief.json, tasks.json, pipeline stages) unlikely to appear in unrelated skills. Trigger conditions are specific to this workflow, so misfiring on a generic 'project' skill is unlikely.