Conciseness

Quotes: the five-step workflow, the terse preset table ("X1 Carbon, X1E, P2S, P1S, P1P, and A1: `256 × 256 × 256 mm`"), and the ownership sentence ("Replicator owns geometry selection... The slicer owns process decisions and G-code"). Every line adds non-obvious domain data (preset dimensions, boundary rules) with zero padding and no explanation of concepts Claude already knows. Matches the lean/every-token-earns-its-place anchor; not 4 because there is no over-explanation to trim.

Actionability

Quotes: "Use `cad.print.prepare` to measure the oriented solids, arrange them across as many plates as needed, and export one standard unsliced `.3mf` per plate", "`allow_quarter_turn` permits only 90-degree Z turns", and the exact preset dimensions. Concrete tool names, flags, and output spec make the guidance mostly executable. Not 5 because the `cad.print.prepare` invocation is never shown with its actual parameters (e.g., how preset or custom sizes are passed), leaving a gap between instruction and execution.

Workflow Clarity

Quotes: the numbered steps 1–5 plus the checkpoints "Preview the generated plates" and "Reject stale saved layouts after the CAD build changes". The sequence is clear and includes verification (preview) and a staleness guard, so the batch-operation validation cap is not triggered. Not 5 because there is no explicit feedback loop — e.g., what to do if the preview reveals a problem (objects too tall, overlapping, exceeding plate count expectations). Not 3 because validation steps are present, not absent or merely implicit.

Progressive Disclosure

The body is ~30 lines with well-organized sections ("## Default workflow", "## Boundaries") and no bundle files; cross-skill pointers ("Load `$gcode` only when...", "Load `$bambu-labs` only when...") are clearly signaled conditional loads, not buried references. Per the scoring note, a sub-50-line skill needing no external references scores 5 with well-organized sections. Not 4 because there is no content that should be split out and navigation is unambiguous.

Specificity

Quotes: "Prepare committed Replicator CAD objects", "arranging quantities across real build-plate dimensions", "exporting one standard unsliced `.3mf` per plate for Bambu Studio or another slicer". It lists the full chain of concrete actions (prepare input, arrange across plates, export one .3mf per plate) with a named output format and target tool, matching the anchor for multiple specific concrete actions with comprehensive coverage. Not 4 because there are no meaningful gaps — the description covers the skill's entire action space.

Completeness

The 'what' is explicit and clear ("Prepare committed Replicator CAD objects... exporting one standard unsliced `.3mf` per plate"), but there is no 'Use when...' clause or equivalent explicit trigger guidance — 'when' is only weakly implied by "for ordinary FDM printing". Per the judging guidelines, a missing 'Use when...' clause caps completeness at 3, which this matches. Not 4 because the when-conditions cannot be considered explicit.

Trigger Term Quality

Quotes: "ordinary FDM printing", ".3mf", "Bambu Studio", "another slicer", "build-plate dimensions", "CAD objects". Strong natural domain vocabulary including the file extension, but common synonyms like "3D printing" or "arrange/plate my models" are absent. Not 5 because a few natural phrases a user would say are missing; not 3 because coverage clearly goes beyond "some relevant keywords".

Distinctiveness Conflict Risk

Quotes: "Replicator CAD objects", "real build-plate dimensions", "standard unsliced `.3mf`", "not Bambu `.gcode.3mf` and not a sliced print job". This is a clear niche (Replicator-to-slicer plate handoff) whose description even distinguishes itself from adjacent G-code/slicing workflows, matching the clear-niche/minimal-conflict anchor. Not 4 because no meaningful overlap with other skills is identifiable.