Conciseness

The body is dense with tool-specific semantics Claude cannot know (exact error strings, null-triplet rules, factory behavior) and wastes no tokens on generic explanation, but the two-element-triplet rejection is repeated across four places, the dry-run name-lookup warning is explained twice, and the MOVE semantics sit in one ~450-word paragraph that could be a table.

Actionability

Fully executable guidance throughout: exact tool names with parameter triplets, a copy-paste heredoc invocation of scripts/blueprint.py with its printed output, and table_to_bulk_insert.py commands including a --verify round-trip with sample output.

Workflow Clarity

The Common Workflow is a clearly sequenced six-step process with an explicit validation checkpoint (mps_mcp_check_root_node_problems, fixReferences.stillBroken), dry-run-before-write guidance, and feedback loops (quickFixes / mps_mcp_apply_intention, FIX_REFERENCES repair), fully covering this destructive/batch-capable skill.

Progressive Disclosure

A dedicated Reference Index signals one-level-deep references well ("Open references/json-format.md when you need…"), but substantial specialized detail (node-factory composition rules, the full MOVE semantics) is inlined rather than split out, and cross-skill pointer chains into mps-mcp-workflow references add indirection.

Specificity

Enumerates multiple concrete actions — "Add, update, or delete MPS nodes", "staged construction for large subtrees", "validation, and reference repair" — with comprehensive coverage of the node-editing domain, matching the top anchor's breadth.

Completeness

Explicitly answers both questions: the first sentence states what the skill does, and "Use whenever creating, editing, or restructuring nodes in any MPS model (structure, editor, behavior, generator, application code, etc.)" gives concrete when-triggers.

Trigger Term Quality

Natural phrases like "creating, editing, or restructuring nodes" and "MPS model" plus aspect names give good keyword coverage, but operations the skill covers such as moving, copying, or cloning nodes have no direct trigger term ("restructuring" only loosely implies them).

Distinctiveness Conflict Risk

"MPS nodes" carves out a clear niche, but "editing nodes in any MPS model" spans all aspects and overlaps with closely related companion skills (mps-model-manipulation, mps-baselanguage), so minor overlap risk remains.