docs: narrow coding standards scope

.agents/skills/coding-standards/SKILL.md

@@ -1,12 +1,18 @@
 ---
 name: coding-standards
-description: Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.
+description: Baseline cross-project coding conventions for naming, readability, immutability, and code-quality review. Use detailed frontend or backend skills for framework-specific patterns.
 origin: ECC
 ---
 
 # Coding Standards & Best Practices
 
-Universal coding standards applicable across all projects.
+Baseline coding conventions applicable across projects.
+
+This skill is the shared floor, not the detailed framework playbook.
+
+- Use `frontend-patterns` for React, state, forms, rendering, and UI architecture.
+- Use `backend-patterns` or `api-design` for repository/service layers, endpoint design, validation, and server-specific concerns.
+- Use `rules/common/coding-style.md` when you need the shortest reusable rule layer instead of a full skill walkthrough.
 
 ## When to Activate
 
@@ -17,6 +23,19 @@ Universal coding standards applicable across all projects.
 - Setting up linting, formatting, or type-checking rules
 - Onboarding new contributors to coding conventions
 
+## Scope Boundaries
+
+Activate this skill for:
+- descriptive naming
+- immutability defaults
+- readability, KISS, DRY, and YAGNI enforcement
+- error-handling expectations and code-smell review
+
+Do not use this skill as the primary source for:
+- React composition, hooks, or rendering patterns
+- backend architecture, API design, or database layering
+- domain-specific framework guidance when a narrower ECC skill already exists
+
 ## Code Quality Principles
 
 ### 1. Readability First

WORKING-CONTEXT.md

@@ -90,6 +90,7 @@ Keep this file detailed for only the current sprint, blockers, and next actions.
 
 ## Latest Execution Notes
 
+- 2026-04-05: Continued `#1213` overlap cleanup by narrowing `coding-standards` into the baseline cross-project conventions layer instead of deleting it. The skill now explicitly points detailed React/UI guidance to `frontend-patterns`, backend/API structure to `backend-patterns` / `api-design`, and keeps only reusable naming, readability, immutability, and code-quality expectations.
 - 2026-04-05: Fixed the `main` npm CI break after the latest direct ports. `package-lock.json` had drifted behind `package.json` on the `globals` devDependency (`^17.1.0` vs `^17.4.0`), which caused all npm-based GitHub Actions jobs to fail at `npm ci`. Refreshed the lockfile only, verified `npm ci --ignore-scripts`, and kept the mixed-lock workspace otherwise untouched.
 - 2026-04-05: Direct-ported the useful discoverability part of `#1221` without duplicating a second healthcare compliance system. Added `skills/hipaa-compliance/SKILL.md` as a thin HIPAA-specific entrypoint that points into the canonical `healthcare-phi-compliance` / `healthcare-reviewer` lane, and wired both healthcare privacy skills into the `security` install module for selective installs.
 - 2026-04-05: Direct-ported the audited blockchain/web3 security lane from `#1222` into `main` as four self-contained skills: `defi-amm-security`, `evm-token-decimals`, `llm-trading-agent-security`, and `nodejs-keccak256`. These are now part of the `security` install module instead of living as an unmerged fork PR.

skills/coding-standards/SKILL.md

@@ -1,12 +1,18 @@
 ---
 name: coding-standards
-description: Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.
+description: Baseline cross-project coding conventions for naming, readability, immutability, and code-quality review. Use detailed frontend or backend skills for framework-specific patterns.
 origin: ECC
 ---
 
 # Coding Standards & Best Practices
 
-Universal coding standards applicable across all projects.
+Baseline coding conventions applicable across projects.
+
+This skill is the shared floor, not the detailed framework playbook.
+
+- Use `frontend-patterns` for React, state, forms, rendering, and UI architecture.
+- Use `backend-patterns` or `api-design` for repository/service layers, endpoint design, validation, and server-specific concerns.
+- Use `rules/common/coding-style.md` when you need the shortest reusable rule layer instead of a full skill walkthrough.
 
 ## When to Activate
 
@@ -17,6 +23,19 @@ Universal coding standards applicable across all projects.
 - Setting up linting, formatting, or type-checking rules
 - Onboarding new contributors to coding conventions
 
+## Scope Boundaries
+
+Activate this skill for:
+- descriptive naming
+- immutability defaults
+- readability, KISS, DRY, and YAGNI enforcement
+- error-handling expectations and code-smell review
+
+Do not use this skill as the primary source for:
+- React composition, hooks, or rendering patterns
+- backend architecture, API design, or database layering
+- domain-specific framework guidance when a narrower ECC skill already exists
+
 ## Code Quality Principles
 
 ### 1. Readability First