Conciseness

The technical sections (FES overhead, seeded randomness, HSB mode, WebGL gotchas, noLoop headless capture, pixel-buffer vectorization) are tight and genuinely non-obvious, but roughly 60 lines of creative-manifesto prose overlap — 'Dense, layered, considered', 'Cohesive aesthetic over feature count', and 'Per-Project Variation Rules' repeat the directives of 'Project-Specific Invention'. This is 'Mostly efficient but includes some unnecessary explanation or could be tightened' rather than 4, since the repetition is more than minor.

Actionability

The body provides a complete copy-paste HTML scaffold, a working fbm() implementation, an export table with exact commands ('node scripts/export-frames.js sketch.html --width 3840 --height 2160 --frames 1', 'bash scripts/render.sh ...'), a keyPressed() convention, and a concrete fxhash pattern. Fully executable guidance covering the common cases; the few stubs ('// ... project-specific params') are justified as template placeholders.

Workflow Clarity

A clear 6-stage pipeline (CONCEPT → DESIGN → CODE → PREVIEW → EXPORT → VERIFY) is expanded into Steps 1–6 with an explicit validation stage (Step 6: resolution, 60fps performance, color, edge cases) and a feedback loop ('If it looks generic, go back to Step 1'). This is a creative-rendering skill, not a destructive/batch operation, so the validation cap does not apply.

Progressive Disclosure

Ten real, one-level-deep reference files are each mapped in a table with per-section pointers ('references/visual-effects.md § Noise'), and the referenced scripts (serve.sh, export-frames.js, render.sh) all exist. However, 'templates/viewer.html' — which Step 3 instructs the agent to 'Read the template first' and the References table lists — does not exist in the bundle, a real navigation gap that keeps this at 'minor organization gaps' rather than 5.

Specificity

The description names the domain ('p5.js sketches') and four topic areas ('gen art, shaders, interactive, 3D') but contains no action verbs whatsoever — it is a topic list, not concrete actions like 'Create' or 'Export'. This matches the anchor 'Names the domain but actions are minimal or generic'; it is above 1 because the domain is clearly identified, and below 3 because no concrete actions are stated.

Completeness

A 'what' is present (p5.js sketches across several output types) but there is no 'when' — no 'Use when...' clause or equivalent trigger guidance anywhere, which per the rubric guidelines caps completeness at 3. It is not 2 because the 'what' is not vague; it is not 4 because the 'when' is entirely absent rather than merely under-specified.

Trigger Term Quality

'p5.js', 'sketches', 'shaders', 'interactive', and '3D' are natural user terms, but 'gen art' is an abbreviation of what users actually say ('generative art'), and common variations like 'creative coding', 'canvas animation', and 'data visualization' are missing. This lands at 'Some relevant keywords but missing common variations or synonyms' rather than 4's 'Good keyword coverage'.

Distinctiveness Conflict Risk

'p5.js' is a clearly distinct niche unlikely to trigger the wrong skill, but the broad trailing terms 'interactive', '3D', and 'shaders' carry minor overlap risk with other visualization and creative-coding skills. This is 'Mostly distinct; minor overlap risk' rather than 5's minimal-conflict profile.