Agent skill

Regression Sweep

by mirumee in mirumee/nimara-ecommerce

Run a broad health check across a Nimara surface — checkout, SEO/metadata, performance, or a page-type matrix — and report findings, instead of verifying one ticket.

BSD-3-ClauseAuto-check passedFrontend & Design

Install Regression Sweep

skills CLI
$ npx skills add mirumee/nimara-ecommerce --skill regression-sweep -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mirumee/nimara-ecommerce regression-sweep --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/regression-sweep .claude/skills/regression-sweep && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
regression-sweep
GitHub stars
129
Token cost
~620 tokens
SKILL.md length
239 words
Files
1
Skills in repo
12
Repo updated
First seen
Licence
BSD-3-Clause

At a glance

Run a broad health check across a Nimara surface — checkout, SEO/metadata, performance, or a page-type matrix — and report findings, instead of verifying one ticket.

  • Works in 4 steps: Cover the matrix. Enumerate the axes for… → Cheapest reliable method per signal.… → Right environment. Test the real… → …
  • The user asks for a regression pass
  • SKILL.md covers Operating principles, Workflow and References
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Regression Sweep is an agent skill from mirumee/nimara-ecommerce. Run a broad health check across a Nimara surface — checkout, SEO/metadata, performance, or a page-type matrix — and report findings, instead of verifying one ticket. Use this skill whenever the user asks for a regression pass, a smoke/health check, a "sweep" of an area, a performance audit (Lighthouse), an SEO/meta check, or "test everything on <page/flow". Fans out across page types, channels, and devices, then summarises pass/fail with evidence. Do NOT use to retest a specific reported bug (use…

Its SKILL.md is about 620 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Web performance and Test generation. It works with shadcn/ui. The repository describes itself as: Headless, composable ecommerce storefront built with Next.js, Typescript, and shadcn/ui. The licence is BSD-3-Clause.

When your agent uses it

  • The user asks for a regression pass
  • A smoke/health check
  • A sweep of an area
  • A performance audit (Lighthouse)

Example prompts

  • “of an area, a performance audit (Lighthouse), an SEO/meta check, or”
  • “/regression-sweep”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Cover the matrix. Enumerate the axes for the surface (page type × channel × device × env) and sweep representatives — don't spot-check one…
  2. Cheapest reliable method per signal. curl+grep for SEO/structural, local Lighthouse for perf, Playwright for interactive flows, response…
  3. Right environment. Test the real storefronts (dev/stage/demo), not the nimara.store landing page; mind channel prefixes (/ = US, /gb =…
  4. Report findings, don't auto-file. Summarise pass/fail with evidence; only open tickets when the user asks, generalising to classes.

What it can do on your machine

Read from SKILL.md and the folder at commit b883dec. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Regression Sweep loads about 620 tokens when it runs. Until then it costs about 148 tokens; SKILL.md has 239 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~148
When it runs · the whole SKILL.md, loaded when a task matches
~620

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from mirumee/nimara-ecommerce at commit b883dec, republished under its BSD-3-Clause licence (© mirumee). 239 words, ~620 tokens.

Download SKILL.mdSave it as .claude/skills/regression-sweep/SKILL.md (or your agent's skills folder).
name
regression-sweep
description
Run a broad health check across a Nimara surface — checkout, SEO/metadata, performance, or a page-type matrix — and report findings, instead of verifying one ticket. Use this skill whenever the user asks for a regression pass, a smoke/health check, a "sweep" of an area, a performance audit (Lighthouse), an SEO/meta check, or "test everything on <page/flow>". Fans out across page types, channels, and devices, then summarises pass/fail with evidence. Do NOT use to retest a specific reported bug (use bug-retest-triage) or to design cases from a spec (use test-case-design).

Regression Sweep

Run a broad, repeatable health check across a surface and report — breadth over depth. Use this for "is anything broken across X" rather than a single defect.

Operating principles

  1. Cover the matrix. Enumerate the axes for the surface (page type × channel × device × env) and sweep representatives — don't spot-check one page. See [[Coverage Maps]].
  2. Cheapest reliable method per signal. curl+grep for SEO/structural, local Lighthouse for perf, Playwright for interactive flows, response listeners for contracts. See [[Test Method Playbooks]].
  3. Right environment. Test the real storefronts (dev/stage/demo), not the nimara.store landing page; mind channel prefixes (/ = US, /gb = GB). See [[Environments & Access Matrix]].
  4. Report findings, don't auto-file. Summarise pass/fail with evidence; only open tickets when the user asks, generalising to classes.

Workflow

  1. PICK SURFACE & AXES — e.g. SEO across {Home, PLP, PDP, CMS} × {US, GB}; or perf across {dev, stage, demo} × {Home, PLP, PDP} × {mobile, desktop}; or checkout smoke across {US, GB} × {guest, logged-in}.
  2. BASELINE (if any) — note prior scores/expected values to compare against.
  3. SWEEP — run each cell with its method; capture evidence under qa/triage/evidence/<sweep-name>/. Independent cells parallelise well.
  4. REPORT — matrix of cell → result → delta-from-baseline; flag regressions and known-flaky cells ([[Known Flaky, Blocked & Backend-Only]]); record method caveats (perf fluctuates, code-inspection vs deployed build).
  5. HANDOFF (if asked) — turn confirmed regressions into bugs via [[Defect Taxonomy & Severity]] + [[Jira & Board 74 Operating Manual]].

References

[[Coverage Maps]] · [[Test Method Playbooks]] · [[Environments & Access Matrix]] · [[Known Flaky, Blocked & Backend-Only]]

© mirumee, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .claude/skills/regression-sweep of mirumee/nimara-ecommerce.

Open the folder on GitHubat commit b883dec

Compare with similar skills

Regression Sweep next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Regression Sweep compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Regression Sweep this skillmirumee/nimara-ecommerce129—~620Automated safety check: PassBSD-3-Clause
Reduce Bundle Sizekcsujeet/ilamy-calendar351—~2.9kAutomated safety check: PassMIT
Frontend Guidelightly-ai/lightly-studio896—~2.9kAutomated safety check: PassApache-2.0
Igniteui Angular TestingIgniteUI/igniteui-angular599—~950Automated safety check: PassCustom licence
Front-End Checklist CLI Reviewthedaviddias/Front-End-Checklist74k—~692Automated safety check: PassMIT
Igniteui Wc Figma To AppIgniteUI/igniteui-webcomponents170—~7.2kAutomated safety check: PassMIT

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Works with

Questions about Regression Sweep

What does Regression Sweep do?

Run a broad health check across a Nimara surface — checkout, SEO/metadata, performance, or a page-type matrix — and report findings, instead of verifying one ticket. Regression Sweep is an agent skill from mirumee/nimara-ecommerce. Run a broad health check across a Nimara surface — checkout, SEO/metadata, performance, or a page-type matrix — and report findings, instead of verifying one ticket.

When should I use Regression Sweep?

Regression Sweep fits situations like: the user asks for a regression pass; A smoke/health check; A sweep of an area; A performance audit (Lighthouse).

How do I install Regression Sweep in Claude Code?

Run `npx skills add mirumee/nimara-ecommerce --skill regression-sweep -a claude-code`. Or copy the skill folder (.claude/skills/regression-sweep in mirumee/nimara-ecommerce) into .claude/skills/regression-sweep in your project. Claude Code loads it when a task matches its description.

How do I install Regression Sweep in Codex?

Run `npx skills add mirumee/nimara-ecommerce --skill regression-sweep -a codex`. Or copy the skill folder (.claude/skills/regression-sweep in mirumee/nimara-ecommerce) into .agents/skills/regression-sweep in your project. Codex loads it when a task matches its description.

Can I use Regression Sweep in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mirumee/nimara-ecommerce --skill regression-sweep -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/regression-sweep, .gemini/skills/regression-sweep, .github/skills/regression-sweep and .opencode/skills/regression-sweep in your project.

What does Regression Sweep need to run?

SKILL.md names no scripts, command-line tools or credentials: Regression Sweep is instructions for the agent only.

Does Regression Sweep access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Regression Sweep safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Regression Sweep use?

Regression Sweep is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Regression Sweep use?

About 620 tokens (SKILL.md is roughly 2.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Regression Sweep?

Skills that share tags, products or a category with Regression Sweep: Reduce Bundle Size (kcsujeet/ilamy-calendar, 351 stars), Frontend Guide (lightly-ai/lightly-studio, 896 stars), Igniteui Angular Testing (IgniteUI/igniteui-angular, 599 stars) and Front-End Checklist CLI Review (thedaviddias/Front-End-Checklist, 74k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Regression Sweep?

mirumee (a GitHub organization) maintains it in mirumee/nimara-ecommerce, which has 129 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 6, 2026.

Source: mirumee/nimara-ecommerce on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.