Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add agents-inc/skills --skill shared-tooling-eslint-prettiergit clone --depth 1 https://github.com/agents-inc/skillsWrote 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/skills/agents-inc/skills/shared-tooling-eslint-prettier)<a href="https://agentmods.dev/skills/agents-inc/skills/shared-tooling-eslint-prettier"><img src="https://agentmods.dev/badge/skills/agents-inc/skills/shared-tooling-eslint-prettier/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/skills/agents-inc/skills/shared-tooling-eslint-prettier"><img src="https://agentmods.dev/badge/skills/agents-inc/skills/shared-tooling-eslint-prettier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00046 | $0.03108 |
| Opus 5 | $0.00023 | $0.01554 |
| Sonnet 5 | $0.00009 | $0.00622 |
| Haiku 4.5 | $0.00005 | $0.00311 |
Grade A, and why
shared-tooling-eslint-prettier 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 — 340 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ESLint & Prettier
Quick Guide: ESLint 9+ flat config with
defineConfig()andglobalIgnores(). typescript-eslint v8+ withprojectService: true. Prettier shared config with consistent formatting. eslint-config-prettier to disable conflicting rules. eslint-plugin-only-warn for better DX.WARNING: ESLint 10 was released February 2026 and completely removes .eslintrc support. Migrate to flat config now.
<critical_requirements>
CRITICAL: Before Using This Skill
All code must follow project conventions in CLAUDE.md (kebab-case, named exports, import ordering,
import type, named constants)
(You MUST use ESLint 9+ flat config with defineConfig() from eslint/config - NOT legacy .eslintrc)
(You MUST use globalIgnores() for explicit global ignore patterns - NOT bare ignores property)
(You MUST use typescript-eslint v8+ with projectService: true for typed linting)
(You MUST include eslint-plugin-only-warn to convert errors to warnings for better DX)
(You MUST use eslint-config-prettier to disable formatting rules that conflict with Prettier)
</critical_requirements>
Auto-detection: ESLint 9 flat config, defineConfig, globalIgnores, eslint.config.ts, Prettier config, prettier.config.mjs, eslint-config-prettier, eslint-plugin-only-warn, typescript-eslint projectService, .eslintrc migration
When to use:
- Setting up ESLint 9/10 flat config (standalone or shared)
- Configuring Prettier with shared config
- Migrating from legacy .eslintrc to flat config
- Integrating ESLint and Prettier (eslint-config-prettier)
- Configuring typescript-eslint v8+ with projectService
- Setting up custom ESLint rules (named exports, import restrictions, type imports)
When NOT to use:
- Runtime code (this is build-time tooling only)
- CI/CD pipeline configuration
- Git hooks or lint-staged setup
- TypeScript compiler configuration (tsconfig)
- Bundler configuration
Detailed Resources:
- examples/core.md - Essential flat config + Prettier setup
- examples/eslint.md - Advanced ESLint patterns (shared configs, custom rules, ESLint 10 migration)
- examples/prettier.md - Advanced Prettier patterns (TS config, experimental options, ignore files)
- reference.md - Version reference and official documentation links
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 340 lines · 46 tokens per session scan A af0a7d5d8cdf
shared-tooling-eslint-prettier is a skill published in the GitHub repository agents-inc/skills (24 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 3,108 once invoked, about $0.0002 per session on Opus 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 2026-09-05.
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