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typescript-composition

Use when TypeScript work involves dependency construction, composition roots, factories, lifecycle, scope, singletons, caching, or runtime provider selection.

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Overview

Use when TypeScript work involves dependency construction, composition roots, factories, lifecycle, scope, singletons, caching, or runtime provider selection.

Install command

npx skills add https://github.com/gabrielmoreira/skills --skill typescript-composition

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Source

gabrielmoreira/skills

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UpdatedMay 5, 2026 at 21:18

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SKILL.md

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name	typescript-composition
description	Use when TypeScript work involves dependency construction, composition roots, factories, lifecycle, scope, singletons, caching, or runtime provider selection.

TypeScript Composition

Use this skill when code decides what dependencies exist, how long they live, or which runtime implementation is selected.

Agent Quick Path

If you see...	Read
provider/client selected inside behavior code	`rules/composition-root.md`
singleton, cache, pool, memoization, request scope	`rules/dependency-scope.md`
question of ready dependency vs factory	`rules/ready-instance-vs-factory.md`
logger/tracer/exporter lifecycle or provider setup	`../typescript-observability/SKILL.md` plus `rules/composition-root.md`

Owns

Composition roots and runtime decisions.
Dependency lifecycle and scope.
Ready dependency vs factory decisions.
Provider/client selection at startup or assembly time.

Does Not Own

Provider response/request type mapping: use ../typescript-boundaries/SKILL.md.
Config parsing that feeds construction: use ../typescript-configs/SKILL.md.
Composition-root tests: use ../typescript-testing/SKILL.md.
Meaningful logging/tracing design: use ../typescript-observability/SKILL.md.

Default

Assemble dependencies at the edge. Pass ready dependencies inward unless construction must vary at call time.

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Source

gabrielmoreira

gabrielmoreira/skills

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Useful forSOC

Software DevelopersComputer and Mathematical Occupations15-1252L4

name	typescript-composition
description	Use when TypeScript work involves dependency construction, composition roots, factories, lifecycle, scope, singletons, caching, or runtime provider selection.

TypeScript Composition

Use this skill when code decides what dependencies exist, how long they live, or which runtime implementation is selected.

Agent Quick Path

If you see...	Read
provider/client selected inside behavior code	`rules/composition-root.md`
singleton, cache, pool, memoization, request scope	`rules/dependency-scope.md`
question of ready dependency vs factory	`rules/ready-instance-vs-factory.md`
logger/tracer/exporter lifecycle or provider setup	`../typescript-observability/SKILL.md` plus `rules/composition-root.md`

Owns

Composition roots and runtime decisions.
Dependency lifecycle and scope.
Ready dependency vs factory decisions.
Provider/client selection at startup or assembly time.

Does Not Own

Provider response/request type mapping: use ../typescript-boundaries/SKILL.md.
Config parsing that feeds construction: use ../typescript-configs/SKILL.md.
Composition-root tests: use ../typescript-testing/SKILL.md.
Meaningful logging/tracing design: use ../typescript-observability/SKILL.md.

Default

Assemble dependencies at the edge. Pass ready dependencies inward unless construction must vary at call time.