A command that reads the project’s guide for testing regressions through end-to-end tests. End-to-end tests exercise a feature through the whole application rather than testing one small function.

Use it when a user reports a regression or failure symptom. It guides writing or changing end-to-end tests first, then fixing the implementation according to the project playbook.

It creates evidence of the reported failure before implementation changes, making it easier to confirm that the fix addresses the real problem.

How StupidIncarnate/codex-of-consentient-craft configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to StupidIncarnate/codex-of-consentient-craft. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/StupidIncarnate/codex-of-consentient-craft/master/.claude/commands/regression.md

Clone the repo

git clone --depth 1 https://github.com/StupidIncarnate/codex-of-consentient-craft

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/commands/stupidincarnate/codex-of-consentient-craft/regression/github.svg)](https://agentmods.dev/commands/stupidincarnate/codex-of-consentient-craft/regression)

Your own site

<a href="https://agentmods.dev/commands/stupidincarnate/codex-of-consentient-craft/regression"><img src="https://agentmods.dev/badge/commands/stupidincarnate/codex-of-consentient-craft/regression/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/stupidincarnate/codex-of-consentient-craft/regression"><img src="https://agentmods.dev/badge/commands/stupidincarnate/codex-of-consentient-craft/regression.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 61 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00061
Opus 5	$0.00000	$0.00030
Sonnet 5	$0.00000	$0.00012
Haiku 4.5	$0.00000	$0.00006

Measured 12d ago against content hash 7a976f77b726, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

regression scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/regression.md · 7 lines

What it actually says

Read @playbook/regression-through-e2e.md

Then based on that, interpret the below user request. You must write the e2es or change existing e2es to exhibit the failure symptoms the user is highlighting before fixing implementation per the playbook.

User Request: @ARGUMENTS

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

12d ago First seen · 7 lines · 0 tokens per session scan A 7a976f77b726

Subscribe to this mod's changes

regression is a command published in the GitHub repository StupidIncarnate/codex-of-consentient-craft (2 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 61 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

E2E testing Testing

codex-of-consentient-craft: Command for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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