Claude Code prompt engineering system: agents, skills, hooks, and smart context management
npm install @fr0mpy/prompt-systemClaude Code prompt engineering system with agents, skills, hooks, and intelligent context management.
``bash`
npx @fr0mpy/prompt-system
| Directory | Purpose |
|-----------|---------|
| CLAUDE.md | Behavioral rules loaded once at session start |hooks/
| | Lightweight context reminder (~75 tokens per prompt) |skills/
| | Prompt analyzer + format guides (rule, agent, command) |agents/
| | 26 task workers for specialized operations |commands/
| | Slash commands (/review, /test, /commit) |settings.json
| | Hook configuration, bash permissions, sandbox |
The system minimizes context window consumption through two complementary layers:
1. CLAUDE.md — Condensed behavioral rules (code standards, action announcements, constructive pushback). Loaded once at session start by Claude Code's native system.
2. Hook reminder — A ~75-token compressed reminder injected on every prompt via UserPromptSubmit, reinforcing key rules and triggering the prompt analyzer.
A native Claude Code forked skill (context: fork) that dynamically selects relevant agents and skills per request:
- Reads agent/skill descriptions from YAML frontmatter
- Compares against the user's current prompt
- Returns only relevant matches (~50-100 tokens)
- Runs in isolated context — only the short result enters main conversation
This provides intelligent, context-aware routing without consuming main context window tokens for reasoning.
Organized by function:
| Category | Agents |
|----------|--------|
| Core | pre-code-check, package-checker, context-loader, structure-validator |
| Planning | intent-clarifier, assumption-challenger, breaking-change-predictor |
| Code Quality | legacy-archaeologist, dependency-detective, test-gap-finder, refactor-scope-limiter |
| Workflow | pr-narrator, migration-planner, incident-replayer |
| Session | context-curator, decision-logger, session-handoff, scope-creep-detector |
| Domain | api-contract-guardian, accessibility-auditor, performance-profiler, error-boundary-designer |
| Thinking | rubber-duck, devils-advocate, 10x-simplifier, future-you |
| Skill | Type | Purpose |
|-------|------|---------|
| prompt-analyzer | Auto (forked) | Dynamic agent/skill selection per prompt |rule-format
| | On-demand | Template for creating behavioral rules |agent-format
| | On-demand | Template for creating custom agents |command-format
| | On-demand | Template for creating slash commands |
`bashInitialize
npx @fr0mpy/prompt-system
Coexistence
Designed to work alongside
. Both packages share the .claude/ directory without conflicts — each manages only its own files during install, update, and removal.`bash
npx @fr0mpy/component-system
``MIT