typescript-advanced

Comprehensive TypeScript guidance covering compiler configuration, advanced types, utility types, type guards, strict mode workflows, and documentation patterns; use when configuring tsconfig, designing complex generics, making illegal states unrepresentable, fixing type errors, or writing testable and maintainable type-safe APIs.

Quality

76%

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tessl review fix ./skills/development/typescript-advanced/SKILL.md

Quality

Content

63%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.

A well-structured navigation hub with executable commands and concrete code examples, undermined by broken reference paths and some padding. Fixing the cited filenames and trimming the consolidation provenance would lift it materially.

Suggestions

Correct the reference paths in 'How to Use' and 'Navigation Workflow' to match actual files (e.g. types-conditional.md instead of types-advanced-conditional.md, utilities-partial-required.md instead of utilities-builtin-partial.md, guards-basic.md instead of narrowing-guards.md).

Trim the 'Consolidation Note' line-count breakdown and the generic 'Each reference file contains' list; merge the redundant 'When to Apply' and 'Use When' sections to improve token efficiency.

Add a discovery aid (e.g. a short index mapping each priority prefix to its actual reference filenames) so navigation survives even when example paths drift.

Dimension	Reasoning	Score
Conciseness	Mostly efficient with executable commands and BAD/GOOD code, but padded by the 'Consolidation Note' listing original skill line counts (738, 832, ...), a generic 'Each reference file contains' enumeration, and redundant 'When to Apply' and 'Use When' trigger sections; above 2 because core guidance is tight, below 4 due to several trimmable sections.	3 / 5
Actionability	Provides executable commands ('npx tsc --noEmit', 'npx typedoc --out docs src/index.ts', 'rg -n ...') and copy-paste BAD/GOOD TypeScript blocks for common errors; above 3 because guidance is concrete and runnable, below 5 because some inline examples are illustrative rather than covering all common cases.	4 / 5
Workflow Clarity	The 6-step 'Navigation Workflow' is clearly sequenced with explicit `npx tsc --noEmit` validation checkpoints and feedback loops ('if errors persist, consult references/...'); below 5 because several feedback references point to non-existent files (types-advanced-conditional.md, narrowing-guards.md), weakening the recovery loops.	4 / 5
Progressive Disclosure	Good hub structure with a priority/prefix table and 48 real reference files, but 3 of the 5 example paths in 'How to Use' (types-advanced-conditional.md, utilities-builtin-partial.md, narrowing-guards.md) plus workflow references cite filenames that do not exist, so navigation signaling is partly broken; above 2 for the clear prefix system, below 4 because wrong paths exceed minor organization gaps.	3 / 5
	Total	14 / 20 Passed

Description

88%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.

A strong, third-person description that clearly states both what the skill covers and when to use it, with concrete trigger phrases. Trigger-term coverage is good but could add common synonyms and file extensions.

Dimension	Reasoning	Score
Specificity	Names the TypeScript domain and lists multiple concrete actions — 'compiler configuration, advanced types, utility types, type guards, strict mode workflows, and documentation patterns' plus 'configuring tsconfig, designing complex generics, making illegal states unrepresentable, fixing type errors' — giving comprehensive coverage; not below 5 since coverage is broad and concrete, and not a 4 which would require noticeable gaps.	5 / 5
Completeness	Explicitly answers both 'what' ('Comprehensive TypeScript guidance covering compiler configuration, advanced types...') and 'when' ('use when configuring tsconfig, designing complex generics...') with concrete trigger phrases, matching the anchor; not 4 because the 'when' is explicit and specific rather than weakly implied.	5 / 5
Trigger Term Quality	Includes natural phrases a user would say ('configuring tsconfig', 'designing complex generics', 'fixing type errors', 'making illegal states unrepresentable') but omits common synonyms/extensions like '.ts', 'compile errors', or 'type inference'; above 3 for good coverage, below 5 for the missing variations.	4 / 5
Distinctiveness Conflict Risk	Targets an advanced-TypeScript niche with distinct triggers (generics, illegal states, type guards, type-safe APIs), but 'TypeScript guidance' could overlap with a more basic TypeScript skill, so minor overlap risk keeps it below 5.	4 / 5
	Total	18 / 20 Passed

Validation

87%

Warnings & errors only

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

Criteria	Description	Result
allowed_tools_field	'allowed-tools' contains unusual tool name(s)	Warning
referenced_paths_exist	Referenced path issues: 5 missing	Warning

	Total	14 / 16 Passed

Repository: pantheon-org/tekhne
Path: skills/development/typescript-advanced/SKILL.md
Commit: 777cae4

Reviewed: 1 day ago

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