> ## Documentation Index > Fetch the complete documentation index at: https://docs.encoreos.io/llms.txt > Use this file to discover all available pages before exploring further. # AI Platform Capability Parity Matrix > Version: 1.0.0 Last Updated: 2026-04-12 **Version:** 1.0.0\ **Last Updated:** 2026-04-12 This document tracks which AI development capabilities exist on each platform (Cursor IDE, Claude Code, GitHub Copilot) and whether the gaps are intentional (platform-specific) or represent work to close. **Canonical quick reference:** [AGENTS.md](../../AGENTS.md)\ **Hierarchy:** `constitution.md` → `AI_GUIDE.md` → `AGENTS.md` → `.cursor/rules/` → core-specific `AGENTS.md` *** ## Platform Overview | Platform | Entry Point | Primary Use | Config Location | | ------------------ | ------------------------------------------------------------------------ | ---------------------------- | ----------------------- | | **Cursor IDE** | .cursor/README.md | Primary IDE; full automation | `.cursor/` | | **Claude Code** | [CLAUDE.md](../../CLAUDE.md) / .claude/README.md | Alternative IDE; code review | `.claude/` | | **GitHub Copilot** | [.github/copilot-instructions.md](../../.github/copilot-instructions.md) | Browser/VS Code extension | `.github/instructions/` | *** ## Capability Matrix ### Agents / Specialists | Capability | Cursor IDE | Claude Code | GitHub Copilot | Gap Type | | --------------------------- | ------------------------------- | ---------------------------------------------- | -------------- | ---------------------------------------- | | Spec reviewer | ✅ `spec-reviewer` | ✅ `.claude/agents/spec-review` | ❌ | Intentional (Copilot is extension-based) | | Code reviewer | ✅ `code-reviewer` | ✅ `.claude/agents/code-reviewer` | ❌ | Intentional | | Security auditor | ✅ `security-auditor` | ❌ | ❌ | Gap — consider porting | | Compliance reviewer | ✅ `compliance-reviewer` | ✅ `.claude/agents/compliance-reviewer` | ❌ | Intentional | | Debugger | ✅ `debugger` | ❌ | ❌ | Gap — consider porting | | Migration helper | ✅ `migration-helper` | ❌ | ❌ | Gap — consider porting | | Test generator | ✅ `test-generator` | ✅ `.claude/agents/test-generator` | ❌ | Intentional | | Documentation updater | ✅ `documentation-updater` | ✅ `.claude/agents/documentation-expert` | ❌ | Intentional | | Architecture validator | ✅ `architecture-validator` | ❌ | ❌ | Gap — consider porting | | Technical researcher | ✅ `technical-researcher` | ❌ | ❌ | Gap | | Dead code auditor | ✅ `dead-code-auditor` | ❌ | ❌ | Gap | | Module strategic reviewer | ✅ `module-strategic-reviewer` | ❌ | ❌ | Cursor-specific (full agent context) | | Verifier | ✅ `verifier` | ❌ | ❌ | Gap — consider porting | | Supabase schema architect | ✅ `supabase-schema-architect` | ❌ | ❌ | Gap | | EHR/PM research planner | ✅ `ehr-pm-research-planner` | ❌ | ❌ | Cursor-specific | | Document structure analyzer | ✅ `document-structure-analyzer` | ✅ `.claude/agents/document-structure-analyzer` | ❌ | Intentional | | Technical writer | ✅ `technical-writer` | ✅ `.claude/agents/technical-writer` | ❌ | Intentional | **Cursor total:** 24 agents | **Claude total:** 6 agents | **Copilot:** 0 (path-scoped instructions only) ### Skills / Workflows | Skill | Cursor IDE | Claude Code | GitHub Copilot | Gap Type | | ------------------------------ | ------------------------- | --------------------- | -------------- | ----------- | | Module spec authoring | ✅ | ❌ | ❌ | Gap | | Module implementation workflow | ✅ | ❌ | ❌ | Gap | | Module testing strategy | ✅ | ❌ | ❌ | Gap | | Module regulatory compliance | ✅ | ❌ | ❌ | Gap | | Module database design | ✅ | ❌ | ❌ | Gap | | Module integration patterns | ✅ | ❌ | ❌ | Gap | | Module task management | ✅ | ❌ | ❌ | Gap | | Module planning | ✅ | ❌ | ❌ | Gap | | Systematic debugging | ✅ | ❌ | ❌ | Gap | | Verification before completion | ✅ | ❌ | ❌ | Gap | | TDD workflow | ✅ | ❌ | ❌ | Gap | | Playwright testing | ✅ | ❌ | ❌ | Gap | | HR E2E browser testing | ✅ | ❌ | ❌ | Gap | | API integration specialist | ✅ | ✅ | ❌ | Intentional | | Code review | ✅ | ✅ | ❌ | Intentional | | Doc update | ✅ (documentation-updater) | ✅ | ❌ | Intentional | | Spec review | ✅ | ✅ | ❌ | Intentional | | Supabase security audit | ✅ | ✅ `.claude/commands/` | ❌ | Intentional | | Dead code audit | ✅ | ❌ | ❌ | Gap | | AI slop audit | ✅ | ❌ | ❌ | Gap | **Cursor total:** 23 skills | **Claude total:** 5 skills | **Copilot:** 0 ### Rules / Pattern Files | Pattern Coverage | Cursor IDE | Claude Code | GitHub Copilot | Notes | | --------------------- | -------------------------------------------- | -------------------------------------- | -------------------------------------------------- | ------------------------------ | | Database patterns | ✅ `.cursor/rules/database-patterns.mdc` | ✅ `.claude/rules/database-patterns.md` | ✅ `.github/instructions/database.instructions.md` | Full parity | | RLS tests | ✅ `.cursor/rules/testing.md` | ✅ `.claude/rules/rls-tests.md` | ✅ `.github/instructions/rls-tests.instructions.md` | Full parity | | Clinical patterns | ✅ `.cursor/rules/cl-patterns.md` | ✅ `.claude/rules/clinical.md` | ✅ `.github/instructions/clinical.instructions.md` | Full parity | | Security patterns | ✅ `.cursor/rules/security-patterns.md` | ✅ `.claude/rules/security.md` | ❌ | Copilot gap | | Quick reference | ✅ `.cursor/rules/quick-reference.mdc` | ❌ | ❌ | Cursor-specific (always-apply) | | Form libraries | ✅ `.cursor/rules/form-libraries.md` | ❌ | ❌ | Gap | | Performance patterns | ✅ `.cursor/rules/performance-patterns.md` | ❌ | ❌ | Gap | | Error handling | ✅ `.cursor/rules/error-handling-patterns.md` | ❌ | ❌ | Gap | | HR patterns | ✅ `.cursor/rules/hr-patterns.md` | ❌ | ❌ | Gap | | FA patterns | ✅ `.cursor/rules/fa-patterns.md` | ❌ | ❌ | Gap | | Dialog size standards | ✅ `.cursor/rules/dialog-size-standards.md` | ❌ | ❌ | Gap | | Shared UI | ❌ | ❌ | ✅ `.github/instructions/shared-ui.instructions.md` | Copilot-native | **Cursor total:** 36 rules | **Claude total:** 4 path-scoped | **Copilot:** 5 path-scoped ### Commands / Workflows | Command Category | Cursor IDE | Claude Code | GitHub Copilot | | ------------------------- | ------------- | ----------- | -------------- | | Database (migrations) | ✅ 12 commands | ❌ | ❌ | | Development (build, test) | ✅ 15 commands | ❌ | ❌ | | Documentation | ✅ 8 commands | ❌ | ❌ | | Specs workflow | ✅ 20 commands | ❌ | ❌ | | PR / review | ✅ 8 commands | ❌ | ❌ | | Fix issue | ✅ 8 commands | ❌ | ❌ | | Supabase security audit | ❌ | ✅ 1 command | ❌ | **Cursor total:** 73 commands | **Claude total:** 1 command | **Copilot:** 0 ### Hooks & Automation | Hook | Cursor IDE | Claude Code | GitHub Copilot | | ------------------------ | ----------------------------------------- | --------------------------- | -------------- | | PHI scanner (pre-edit) | ✅ `.cursor/hooks/phi-scanner.js` | ✅ PreToolUse edit guard | ❌ | | Sensitive file guard | ✅ `.cursor/hooks/sensitive-file-guard.js` | ✅ PreToolUse file guard | ❌ | | Risky command guard | ✅ `.cursor/hooks/risky-command-guard.js` | ❌ | ❌ | | Auto-format on edit | ✅ PostToolUse Biome | ✅ PostToolUse Biome | ❌ | | Session context reinject | ✅ *(implicit via always-apply rules)* | ✅ SessionStart hook | ❌ | | Notification | ❌ | ✅ `notify-send`/`osascript` | ❌ | *** ## Policy: Shared vs Platform-Specific ### Shared (All Platforms Must Have) All platforms must convey these policies to AI (via rules, instructions, or agent prompts): * Tenant isolation: `organization_id` on all mutations * No PHI in prompts, logs, or error messages * No direct core-to-core imports — use `@/platform/*` * RLS on all new tables * `sanitizeErrorMessage` for user-facing errors * `useCurrentUser` for auth (not ad-hoc `supabase.auth.getUser()`) * `staleTime: 5m` and `gcTime: 10m` on all `useQuery` calls * No hardcoded state Medicaid rules — use PF-96 jurisdiction profiles * No inline `pf_user_role_assignments` in edge functions — use `verifyOrgAccess()` **Status:** Cursor (✅ quick-reference.mdc always-apply) | Claude (✅ `.claude/rules/` path-scoped) | Copilot (⚠️ partial — AGENTS.md + some instructions) ### Intentionally Platform-Specific * **Cursor only:** Full agent fleet (24 agents), 73 commands, skills, MCP servers, IDE hooks * **Claude only:** SessionStart reinject hook, file organizer skill, notification hook * **Copilot only:** Shared-UI path-scoped instructions (`.github/instructions/shared-ui.instructions.md`) *** ## Known Gaps to Address | Gap | Priority | Effort | Action | | --------------------------------------------- | -------- | ------ | --------------------------------------------------- | | Copilot missing security patterns instruction | High | Low | Add `.github/instructions/security.instructions.md` | | Claude missing debugger / verifier agents | Medium | Medium | Port Cursor `debugger.md` and `verifier.md` agents | | Claude missing module workflow skills | Medium | Medium | Port key Cursor skills to `.claude/skills/` | | Copilot missing pre-flight checklist | High | Low | Add to `copilot-instructions.md` | | Performance patterns only in Cursor | Medium | Low | Add to Claude rules + Copilot instructions | *** ## Maintenance **Monthly governance check:** Reconcile this matrix when any AI config changes. See [AGENTS.md §AI Configuration Governance Cadence](../../AGENTS.md). **When a new agent/skill/rule is added to Cursor:** Update this table and determine if it should be ported to Claude or Copilot.