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install-effect-package

Install @effect/* packages safely. Use whenever adding a new Effect ecosystem dependency.

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SKILL.md (original)

Review the instructions the agent will receive before you install.

Installing Effect Ecosystem Packages

This repo uses pnpm. To add any @effect/* package:

pnpm add @effect/package-name

pnpm resolves peer dependencies without rewriting the rest of the lockfile, so it does not suffer from the npm failure mode this skill originally guarded against (npm's --legacy-peer-deps silently stripping existing @effect/* peers such as @effect/rpc, @effect/sql, @effect/experimental and corrupting the lockfile).

If a new @effect/* package reports a peer-dependency conflict, install the matching peer versions explicitly rather than forcing the tree — check pnpm why <package> to see what is already resolved before adding.

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