How do I install the Bundle Analysis skill?

Run npx skillmds@latest add effect-ts-effect/bundle-analysis in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Bundle Analysis skill do?

Bundle analysis. Use when measuring current bundle size, comparing stable or selected fixtures, inspecting composition, or cleaning retained comparison state. It is listed under Coding & Dev Tools on SkillMD.

Is Bundle Analysis safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Bundle Analysis?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Bundle Analysis free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Bundle Analysis?

Effect-TS (@effect-ts-effect) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Bundle Analysis by effect-ts-effect

Name: Bundle Analysis
Rating: 4.2 (5 reviews)
Author: Effect-TS

File contents

Read packages/tools/bundle/README.md, then select one workflow:

Stable comparison: pnpm bundle-compare <base-ref>. Use HEAD~1 for the latest commit. Read tmp/bundle-stats.txt and report non-zero differences.
Selected comparison: pnpm bundle-compare-selected --base <ref> scratchpad/<fixture>.ts. Use only user-named or investigation-local fixtures; keep temporary fixtures out of the stable corpus.
Composition: pnpm bundle-analyze scratchpad/<fixture>.ts. Read raw data first and report the largest modules, dependency groups, and surprising inclusions. Its readable-name output is not an exact size measurement.
Current size: Build immediately before the direct bundle report so Effect packages resolve from current dist output.
Cleanup: Stable comparisons retain tmp/bundle-base for reuse unless cleanup is requested. Remove selected-comparison state retained with --keep-base after its final use. Verify cleanup without disturbing unrelated worktrees.

The task is complete when the selected artifact is inspected, requested size or composition findings are reported, generated paths are named, and comparison state follows the selected workflow's retention policy.

Frequently asked questions

Bundle Analysis