Where AI-adjacent work appears, most specifications carry all three human layers with it.
Skills Index. What the market hires for.
Across 43,967 live specifications, 43,967 carrying at least one mapped skill, week ending 2 October 2026, each mapped skill is assigned to one of four layers (Execution, Coordination, Judgement, AI-adjacent) and one of fourteen sub-categories, and every count below is of specifications carrying that work.
1,288 carry it without judgement, roughly one in twelve. None carry it alone.
Of 15,039 live specifications carrying AI-adjacent work, 13,587 carry all three human layers with it, 90.3%. 1,288 carry it without judgement, roughly one in twelve. None carry it alone.
How the four layers are defined
Four layers, fourteen sub-categories. Every classified skill sits in exactly one of each, and every count on this page is of live specifications carrying that work.
Full definitions at /skills/taxonomyHow many live roles carry each layer
Of 43,967 live specifications week ending 2 October 2026, 43,961 carry Execution work (99.9%), 43,485 carry Coordination work (98.9%), 41,422 carry Judgement work (94.2%), 15,039 carry AI-adjacent work (34.2%). The three human layers are present in nearly every role; the fourth is present in 34.2%.
The three human layers are present in nearly every role; the fourth is present in 34.2%. Area-true, the three human discs would coincide, so the finding is stated here in counts.
Where AI-adjacent work sits when it appears
Of the 15,039 live specifications carrying AI-adjacent work, 13,587 carry all three human layers with it, 90.3%. 1,365 carry two human layers and 87 carry Execution alone; none carry it on its own. Across the whole corpus 41,070 specifications carry all three human layers, 93.4%; 13,587 of those add AI-adjacent work and 27,483 do not. The map at the top of this page shows that: hover any shape to see the count.
None carry it alone.
Which sub-categories employers ask for most
Internal coordination appears in 38,529 live specifications, Technical appears in 34,237 live specifications, Functional appears in 33,647 live specifications, External coordination appears in 32,202 live specifications. AI tool use, the largest AI-adjacent sub-category, appears in 11,590; AI governance in 3,137. Employers ask for the use of the model four times more often than they ask for the governance of it.
How far the mapping reaches, per layer
Mapping completeness is reported per layer, never as one blended number. Coverage is lowest in the AI-adjacent layer; until coverage is flat, skills figures are composition claims, never trends. The bars were read at the freeze named with its date in the source line beneath them.
Coverage is lowest in the AI-adjacent layer. Until coverage is flat, skills figures are composition claims, never trends. Since 28 September 2026 we count a skill only when its phrase matches the skill's name or a listed phrase exactly, so these figures read lower than before. They increase as our October mapping work lands.
How this is measured
Live basis. A specification carries a layer if at least one of its mapped skills falls in that layer. Sub-category counts are specifications, not observations; a specification listing three technical skills counts once for technical. Canonical skills are those with taxonomy status active.
Full method at /method