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art-bible

Author the Art Bible — visual identity gating asset production. Run before /map-systems.

Quality

75%

Does it follow best practices?

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tessl review fix ./.claude/skills/art-bible/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

81%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a well-engineered orchestration skill: fully concrete delegation prompts, commands, and option strings, with explicit approval gates and sign-off feedback loops throughout. Its main weakness is token efficiency — repeated write-immediately directives, long justification blockquotes, and a closing section that duplicates Phase 6 — plus all content living inline with no bundle split despite referencing a docs tree it could lean on further.

DimensionReasoningScore

Conciseness

The body is dense, non-obvious pipeline policy rather than filler, but it could be tightened: "Write the approved section to file immediately" repeats in nearly every section, the spawn-policy blockquotes run long ("This is not reduced specialist involvement...", "Separate calls would ask the agent to reason about colour..."), and the closing "Recommended Next Steps" section largely duplicates Phase 6's option pool. It is above anchor 2 (no padding that explains things Claude already knows) but below the 'minor instances' bar of anchor 4.

3 / 5

Actionability

Guidance is copy-paste ready: exact Grep patterns with flags for retrofit detection, verbatim agent delegation prompts, exact AskUserQuestion option strings, exact file paths and verdict-header strings, and explicit handling of edge cases (retrofit vs. fresh, one-page brief fallback, missing project.yaml keys, agent conflicts, solo/lean sign-off skips). Common cases are specifically covered, matching anchor 5.

5 / 5

Workflow Clarity

Phases 0-6 are clearly sequenced with explicit validation at every step: per-section user approval gates before any write, the AD-ART-BIBLE sign-off with feedback loops (REJECT/Revise -> specialist re-draft -> re-approve -> write -> record REVISED; NOT ASSESSED -> name missing input, re-run), a Phase 0 fail-fast check, and a Phase 6 state-check checklist before proposing next steps. This matches the anchor-5 pattern of sequence + explicit validation + error-recovery loops.

5 / 5

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent), and the body is well sectioned with clearly signaled one-level-deep pointers to external docs (.claude/docs/director-gates.md, workflow-modes.md, templates/art-bible.md). It falls short of anchor 5 because ~400 lines of policy — tier tables, the section status-table spec, delegation rationale — are all inline where some could be split into reference files; it is well above anchor 3 since every reference is clearly signaled and structure is strong.

4 / 5

Total

17

/

20

Passed

Description

61%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is appropriately terse and third-person, and names a distinct artifact, but it lists only one concrete action and lacks an explicit 'Use when' trigger clause — "Run before /map-systems" conveys pipeline ordering, not user-need conditions. Trigger terms are good but miss natural synonyms like "art direction" or "art style".

Suggestions

Add an explicit trigger clause, e.g. "Use when the user wants to define the game's visual identity, art direction, or art bible before any art assets are produced."

Enumerate the concrete actions performed, e.g. "Author the Art Bible's visual identity statement, mood and atmosphere, shape language, color system, character/environment/UI direction, and asset standards across 9 gated sections."

Include natural synonyms such as "art direction", "art style", and "style guide" so the description matches the varied phrasings users actually say.

DimensionReasoningScore

Specificity

"Author the Art Bible" names the domain and exactly one concrete action; the clause "visual identity gating asset production" describes purpose but adds no further actions. It sits at anchor 3 (domain + 1-2 concrete actions) rather than 4, which requires several specific actions listed.

3 / 5

Completeness

The 'what' is stated ("Author the Art Bible") but the only when-clause is "Run before /map-systems", which is pipeline ordering rather than explicit trigger guidance for when a user needs the skill. Per the guideline that a missing 'Use when...' clause or equivalent caps completeness at 3, this cannot score 4.

3 / 5

Trigger Term Quality

"Art Bible", "visual identity", and "asset production" are terms a game developer would naturally say when needing this skill. Not 5 because common synonyms like "art direction", "art style", or "style guide" are absent, but coverage is clearly above the 'some relevant keywords' of anchor 3.

4 / 5

Distinctiveness Conflict Risk

"Art Bible" is a distinctive niche artifact with minimal generic overlap. Not 5 because the sparse trigger set leaves minor overlap risk with adjacent pipeline skills that also touch visual assets (e.g., /asset-spec, /consistency-check).

4 / 5

Total

14

/

20

Passed

Validation

87%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

14

/

16

Passed

Repository

Donchitos/Claude-Code-Game-Studios

Path

.claude/skills/art-bible/SKILL.md

Reviewed

Table of Contents

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