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+# AGENTS.md
+
+Operational guidance for coding agents working in this repository.
+Use this as default behavior unless the user gives more specific instructions.
+
+## Rule precedence and external rule files
+
+1. Direct user instructions
+2. Repository-specific rule files (if present)
+3. This AGENTS.md
+
+Checked for additional rule files:
+
+-   `.cursorrules`: not found
+-   `.cursor/rules/`: not found
+-   `.github/copilot-instructions.md`: not found
+
+If any of these files appear later, follow them and update this file.
+
+## Project snapshot
+
+-   Node.js project using ESM (`"type": "module"`)
+-   Main entrypoint: `index.js`
+-   Main code: `src/`
+-   Unit tests: `test/unit` (Mocha + Chai + Sinon)
+-   BDD tests: `test/bdd` (Cucumber, `.feature` + `.mjs` steps)
+-   DI container: Awilix (`src/service/dependency-injection.js`)
+-   Lint stack: ESLint (`airbnb/base` + `prettier`) and Prettier
+
+## Environment defaults
+
+-   Prefer Node.js 20.x (CI uses `actions/setup-node@v3` with `node-version: 20.x`)
+-   `package.json` allows Node >=16 and npm >=8, but use Node 20 for CI parity
+-   Install dependencies with `npm install`
+-   Infra commonly required for local runs/tests:
+    -   MySQL on `localhost:3306`
+    -   Blazegraph (`blazegraph.jar`) for BDD flows
+    -   Redis on default port for full startup scenarios
+-   Typical local env:
+    -   `REPOSITORY_PASSWORD=password`
+    -   `JWT_SECRET=test-secret`
+
+## Build, run, lint, and test commands
+
+-   Build-equivalent (contract compile): `npm run compile-contracts`
+-   Install + compile: `npm install && npm run compile-contracts`
+-   Run node: `npm start`
+-   Run bootstrap config: `npm run bootstrap-node`
+-   Start local blockchain: `npm run start:local_blockchain -- 8545`
+-   Start local blockchain v1: `npm run start:local_blockchain:v1 -- 8545`
+-   Start local blockchain v2: `npm run start:local_blockchain:v2 -- 8545`
+-   Stop local blockchain: `npm run kill:local_blockchain -- 8545`
+-   Lint: `npm run lint`
+-   Lint staged files: `npm run lint-staged`
+-   Format all common files: `npx prettier --write "**/*.{js,json,mjs,md,yml,yaml}"`
+-   Pre-commit hook runs `npm run lint-staged`
+
+Test suites:
+
+-   Unit tests: `npm run test:unit`
+-   Module-focused tests: `npm run test:modules`
+-   BDD tests (default): `npm run test:bdd`
+-   BDD release tags: `npm run test:bdd:release`
+-   BDD publish-errors tags: `npm run test:bdd:publish-errors`
+-   BDD update-errors tags: `npm run test:bdd:update-errors`
+-   BDD get-errors tags: `npm run test:bdd:get-errors`
+
+Current CI checks:
+
+-   `npm run lint`
+-   `npm run test:bdd`
+
+## Running a single test (important)
+
+`npm run test:unit` expands `$(find test/unit -name '*.js')`, so use direct Mocha/Cucumber calls for single-test runs.
+
+-   Unit file: `npx mocha --exit test/unit/service/get-service.test.js`
+-   Unit file + coverage: `npx nyc --all mocha --exit test/unit/service/get-service.test.js`
+-   Unit by name: `npx mocha --exit test/unit/service/get-service.test.js --grep "Completed get"`
+-   BDD feature: `npx cucumber-js --config cucumber.js --format progress --format-options '{"colorsEnabled": true}' test/bdd/features/smoke.feature --import test/bdd/steps/ --exit`
+-   BDD scenario by name: `npx cucumber-js --config cucumber.js --format progress --format-options '{"colorsEnabled": true}' test/bdd/ --import test/bdd/steps/ --name "Setting up and Checking Uptime of Nodes by Info API Calls" --exit`
+-   BDD tag example: `npx cucumber-js --config cucumber.js --tags "@smoke" --format progress --format-options '{"colorsEnabled": true}' test/bdd/ --import test/bdd/steps/ --exit`
+
+## Code style guidelines
+
+### Modules and imports
+
+-   Use ESM imports/exports (`import`, `export default`, named exports)
+-   Use explicit local file extensions (`./service.js`)
+-   Prefer import grouping: external packages, project imports, relative imports
+-   Keep one blank line between import groups
+-   Use `createRequire(import.meta.url)` only where require semantics are needed (for example ABI JSON)
+
+### Formatting and lint
+
+-   Prettier: `tabWidth: 4`, `singleQuote: true`, `semi: true`, `trailingComma: all`
+-   Prettier: `printWidth: 100`, `arrowParens: always`
+-   ESLint extends `airbnb/base` and `prettier`
+-   `no-console` is warn; prefer logger in runtime code
+-   `linebreak-style` is unix
+-   `import/extensions` is disabled, but ESM still needs explicit local extensions
+
+### Types and docs
+
+-   This codebase is JavaScript, not TypeScript
+-   Use JSDoc for non-trivial public methods and complex structures
+-   Reuse constants/enums from `src/constants/constants.js` instead of ad hoc literals
+
+### Naming conventions
+
+-   Files: kebab-case (`get-service.js`, `publish-http-api-controller-v1.js`)
+-   Classes: PascalCase (`GetService`, `BaseController`)
+-   Variables/functions: camelCase
+-   Constants: UPPER_SNAKE_CASE
+-   Boolean-like names: `is*`, `has*`, `can*`, `should*`
+-   Versioned HTTP artifacts: `*-v0.js`, `*-v1.js`
+-   Migrations: timestamp prefix + kebab-case description
+
+### Architecture and flow
+
+-   Pass dependencies through constructor `ctx` objects
+-   Register long-lived runtime dependencies in Awilix
+-   Reuse base classes/patterns (`OperationService`, `Command`, module managers)
+-   Prefer extending existing managers/services before adding parallel abstractions
+
+### Async, errors, and logging
+
+-   Use `async`/`await` consistently
+-   Use `Promise.all` for independent async operations
+-   Keep `await` in loops only when sequencing is truly required
+-   Never swallow errors silently
+-   In controllers/services, log context-rich messages and mark failed operations through existing flows
+-   In command handlers, use existing `handleError`/`recover` patterns
+-   Prefer `this.logger.*` in runtime code; avoid new `console.*` unless following existing entrypoint/test style
+
+### API and validation
+
+-   Keep HTTP request schema updates in versioned files under `src/controllers/http-api/*/request-schema`
+-   Maintain v0/v1 compatibility unless task explicitly requires a breaking change
+-   Validate new input fields with existing validation middleware/service patterns
+
+### Tests
+
+-   Keep unit tests in `test/unit/**/*.test.js`
+-   Keep BDD steps in `test/bdd/steps/**/*.mjs`
+-   Add or update tests when changing commands/services/controllers
+-   Never leave accidental `describe.only` or `it.only`
+
+## Agent change checklist
+
+-   Read neighboring code before editing to match local patterns
+-   Make the smallest viable change
+-   Reuse helpers/constants and avoid duplicate logic
+-   Run targeted tests first, then broader suites as needed
+-   Run `npm run lint` after meaningful edits
+-   Avoid committing secrets (`.env`) or generated runtime data folders (`data*`, logs)
+-   Do not force-push or rewrite shared branch history