How do I install the Eslint Foundation skill?

Run npx skillmds@latest add ryan-brosas/eslint-foundation 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.

Is Eslint Foundation safe to use?

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

Which AI agents work with Eslint Foundation?

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 Eslint Foundation free to use?

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

Who published Eslint Foundation?

ryan-brosas (@ryan-brosas) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Eslint Foundation by ryan-brosas — Agent Skill

Name: Eslint Foundation
Author: ryan-brosas

Eslint Foundation

Use when building a lint rule engine or flat-config linter: the verify pipeline, config loading/validation and schema-driven cross-config merge algebra, worker-scaled file discovery, RuleTester harness, AST rule primitives, the code-path-analysis kernel, TokenStore cursor/location-index algebra, offset⇄line-column conversion, the verify-tail suppression split, the one-shot engine-bundle constructor with raw-options-vs-module-URL worker transport, fail-loud results-instance binding, the single run-tail result-cache reconcile, the typed warning-service dedup plane with worker-side channel muting, and the default-config lazy rules proxy.

ryan-brosas 3d28340 93 files · 375.8 KB Updated Sep 17, 2026

File contents

ESLint Foundation

Foundation contract

This is a cold, source-specific foundation, not an operational procedure. It is historical, revision-pinned evidence rather than timeless guidance. Current project source, tests, requirements, and runtime behavior outrank this projection and decide what ships.

Provenance and revision

Source record: eslint; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.
Recorded revision: main@c27bc926e496985eb7911c09eb60914b2e4b5d0f.
Full provenance, coverage caveats, boundaries, and preserved evidence: references/index.md.

Topic map

Representative topics: Verify pipeline; Autofix; Rule execution; Inline configuration; Suppression; Config model; Config loading; File discovery & scaling.
Scope and retrieval questions: references/index.md#use-this-for.
Complete capsule chooser: references/index.md#load-the-matching-source-dump.
Detailed grouped map: references/index.md#capsule-map.
Source limitations and portability boundaries: references/index.md#boundaries.

Retrieval

Open the index, choose one capsule matching the active question, and load only that capsule. Revalidate its cited source and revision before relying on it. Do not bulk-load the inventory, treat historical claims as current truth, or apply this foundation as a procedure.

---name: eslint-foundationdescription: Use when building a lint rule engine or flat-config linter: the verify pipeline, config loading/validation and schema-driven cross-config merge algebra, worker-scaled file discovery, RuleTester harness, AST rule primitives, the code-path-analysis kernel, TokenStore cursor/location-index algebra, offset⇄line-column conversion, the verify-tail suppression split, the one-shot engine-bundle constructor with raw-options-vs-module-URL worker transport, fail-loud results-instance binding, the single run-tail result-cache reconcile, the typed warning-service dedup plane with worker-side channel muting, and the default-config lazy rules proxy.---# ESLint Foundation## Foundation contractThis is a cold, source-specific foundation, not an operational procedure. It ishistorical, revision-pinned evidence rather than timeless guidance. Currentproject source, tests, requirements, and runtime behavior outrank thisprojection and decide what ships.## Provenance and revision- Source record: `eslint`; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.- Recorded revision: `main@c27bc926e496985eb7911c09eb60914b2e4b5d0f`.- Full provenance, coverage caveats, boundaries, and preserved evidence: `references/index.md`.## Topic map- Representative topics: Verify pipeline; Autofix; Rule execution; Inline configuration; Suppression; Config model; Config loading; File discovery & scaling.- Scope and retrieval questions: `references/index.md#use-this-for`.- Complete capsule chooser: `references/index.md#load-the-matching-source-dump`.- Detailed grouped map: `references/index.md#capsule-map`.- Source limitations and portability boundaries: `references/index.md#boundaries`.## RetrievalOpen the index, choose one capsule matching the active question, and load onlythat capsule. Revalidate its cited source and revision before relying on it. Donot bulk-load the inventory, treat historical claims as current truth, or applythis foundation as a procedure.

Frequently asked questions