ic-reactor-packages

name: ic-reactor-packages description: >- Inspect, modify, review, or document the IC Reactor monorepo package architecture. Use when work spans package ownership, package.json exports, tsconfig/project references, build/test scripts, generated artifacts, dependency boundaries, release readiness, or deciding where an AI agent should start for @ic-reactor/core, @ic-reactor/react, @ic-reactor/react, @ic-reactor/react, @ic-reactor/candid, @ic-reactor/parser, @ic-reactor/codegen, @ic-reactor/cli, or @ic-reactor/vite-plugin.

IC Reactor Packages

Use this skill to orient package-level work quickly and avoid monorepo traps. For React hook implementation details, use ic-reactor-hooks; for package ownership, build boundaries, generated files, or cross-package changes, use this skill first.

Read references/package-map.md when you need exact package responsibilities, entry points, verification commands, or known failure modes.

Workflow

1. Identify the owning package before editing.
2. Check the package's public surface: package.json, src/index.ts, exports, peer dependencies, and README.
3. Follow dependency direction:
   • core must stay framework-agnostic.
   • react can depend on core, React, TanStack React Query, and auth client peers.
   • codegen owns generated source templates used by CLI and Vite plugin.
   • cli and vite-plugin should use codegen rather than duplicating generation logic.
4. Avoid editing generated artifacts unless the task is explicitly about publish output. Prefer changing source, generator templates, .did files, or stable wrapper files.
5. Run the narrowest meaningful verification first, then broaden before finishing.

Package Routing

Verification

Use CI-aligned commands:

• Root type check: pnpm exec tsc --noEmit
• Strict project-reference sanity: pnpm exec tsc -b
• Package builds: pnpm build
• Package tests: pnpm test
• Example type checks: pnpm typecheck:examples
• Docs build: pnpm docs:build
• Dependency audit: corepack pnpm audit --audit-level moderate

For focused work, prefer filters such as:

pnpm --filter @ic-reactor/react test
pnpm --filter @ic-reactor/react test
pnpm --filter @ic-reactor/codegen test
pnpm --filter @ic-reactor/vite-plugin test

Build before parser/candid tests when tests import parser dist output:

pnpm --filter @ic-reactor/parser build
pnpm --filter @ic-reactor/candid test

Do not run package build and package test concurrently when parser/candid tests are involved; parser build deletes and recreates dist.

Generated Files

Normally ignore or regenerate these instead of hand-editing:

• dist/
• .dfx/, .icp/, .mops/
• target/
• .next/, .astro/
• *.tsbuildinfo
• generated canister declarations and generated hook files

For codegen behavior, edit packages/codegen/src/ and verify both @ic-reactor/codegen tests and the affected CLI/Vite example.

Public API Checklist

When changing a package's exports or types, confirm:

• src/index.ts exports the intended API.
• package.json main, types, module, and exports are consistent.
• Peer dependencies remain peer dependencies when consumers must provide them.
• README examples import from the public package name, not private source paths.
• Existing examples still use the intended public API.

Common Agent Mistakes

• Starting in an example when the bug belongs in a package generator.
• Fixing generated output instead of the generator.
• Adding React imports to core.
• Adding duplicated codegen behavior in cli or vite-plugin.
• Running tsc -b without checking whether all referenced packages are listed in the root tsconfig.json.
• Treating mainnet-backed candid tests as ordinary fast unit tests.