Borrowing it
Nothing to install: this file belongs to dangreenisrael/eslint-plugin-jest-formatting. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/dangreenisrael/eslint-plugin-jest-formatting/master/AGENTS.mdgit clone --depth 1 https://github.com/dangreenisrael/eslint-plugin-jest-formattingWrote 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.
[](https://agentmods.dev/instructions/dangreenisrael/eslint-plugin-jest-formatting/agents-md)<a href="https://agentmods.dev/instructions/dangreenisrael/eslint-plugin-jest-formatting/agents-md"><img src="https://agentmods.dev/badge/instructions/dangreenisrael/eslint-plugin-jest-formatting/agents-md/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.
<a href="https://agentmods.dev/instructions/dangreenisrael/eslint-plugin-jest-formatting/agents-md"><img src="https://agentmods.dev/badge/instructions/dangreenisrael/eslint-plugin-jest-formatting/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01938 | $0.01938 |
| Opus 5.5 | $0.00775 | $0.00775 |
| Sonnet 5.5 | $0.00388 | $0.00388 |
| Haiku 4.5 | $0.00194 | $0.00194 |
Grade A, and why
eslint-plugin-jest-formatting AGENTS.md 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Briefing for AI coding agents working with or on eslint-plugin-jest-formatting. Everything here is also in README.md and docs/rules; this is the short version.
What this plugin does
eslint-plugin-jest-formatting provides ESLint rules that require a blank line before and after Jest blocks: describe, test/it, beforeAll, beforeEach, afterAll, afterEach, and groups of expect statements. That is its whole scope. It does not check test correctness, naming, or structure; eslint-plugin-jest does that, and the two are used together.
Facts that hold for every rule:
- No options. Configure severity only.
- Autofixable with
eslint --fix. The fixer only inserts newlines; it never removes or moves code. - Only neighbouring statements in the same block are compared. The first statement in a block needs no blank line before it and the last needs none after it. One blank line is enough.
- A statement counts as a Jest call when it starts with the identifier (
describe(...),describe.each(...),await expect(...)), not when the identifier appears later (return expect(...),const p = describe(...)). - Works with ESLint 8, 9, and 10. Flat config (
eslint.config.js) works on ESLint 8.57, 9, and 10. Legacy.eslintrcworks on ESLint 8 and 9 only (9 needsESLINT_USE_FLAT_CONFIG=false). Requires Node 22 or later. There is no Jest version requirement: nothing is imported from Jest.
Rules
| Rule | Requires a blank line | recommended |
strict |
|---|---|---|---|
padding-around-after-all-blocks |
before and after each afterAll call |
yes | yes |
padding-around-after-each-blocks |
before and after each afterEach call |
yes | yes |
padding-around-before-all-blocks |
before and after each beforeAll call |
yes | yes |
padding-around-before-each-blocks |
before and after each beforeEach call |
yes | yes |
padding-around-describe-blocks |
before and after each describe, fdescribe, or xdescribe block |
yes | yes |
padding-around-expect-groups |
before and after each run of consecutive expect statements, not between them |
no | yes |
padding-around-test-blocks |
before and after each test, it, fit, xit, or xtest block |
yes | yes |
padding-around-all |
everything above, as one rule (one report per gap) | no | yes |
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.
- 4d ago First seen · 111 lines · 1,938 tokens per session scan A 28d0ec1d91e2
eslint-plugin-jest-formatting AGENTS.md is an instructions file published in the GitHub repository dangreenisrael/eslint-plugin-jest-formatting (159 stars, last pushed 3d ago), licensed MIT. It adds 1,938 tokens to every session, about $0.0078 per session on Opus 5.5. 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 2026-11-02.
eslint-plugin-jest-formatting AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| eslint-plugin-jest-formatting AGENTS.mddangreenisrael/eslint-plugin-jest-formatting | Instructions file | 159 | 3d ago | MIT | A | 1,938 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |