Aegis Method Pack

What is Aegis?

Aegis is an architecture-driven methodology pack engineered to make autonomous AI coding agents disciplined, reliable, and trustworthy. Built for engineers tired of babysitting hallucinated agent completions, Aegis enforces rigorous engineering habits: agents must establish a project baseline before modifying files, verify interface contracts, clean up retired fallbacks to eliminate ghost code, and produce concrete execution proof before declaring a task “done.” In frozen held-out A/B benchmarks across 120 test runs, Aegis increased agent contract pass rates from 61.67% to 93.33% (+31.67 pp) while completely eliminating unsafe runtime outcomes (13.33% down to 0%).

Core Guardrail Principles & Architecture

• Fewer Reworks via Baseline Alignment: Forces agents to inspect existing project boundaries, module ownership, and system contracts before proposing code changes, preventing speculative blind edits.
• Proof Before “Done” Gate: Prohibits unverified completion claims. The agent must provide fresh execution evidence, test suite outputs, and identified residual risks before marking a prompt complete.
• Zero Ghost Code & Debt Retirement: When introducing new implementations, the agent tracks and cleans up deprecated fallback shims with explicit retirement triggers, stopping silent technical debt accumulation.
• Adaptive Fast-Track Playbook: Trivial one-line edits stay on the lightweight fast path, ensuring rigorous verification ceremony is only activated when system risk warrants it.
• Cross-Host Portability: Operates seamlessly across OpenAI Codex, Anthropic Claude Code, OpenCode, Kimi, Cursor, and any skill-aware agent runtime.

Benchmark: Aegis 2.7.6 A/B Validation

Getting Started & Integration

Incorporate the Aegis Method Pack into your agent environment:

# Install via git clone or agent package manager
git clone https://github.com/GanyuanRan/Aegis.git ~/.claude/skills/aegis

# Or add to project-level instructions (AGENTS.md / CLAUDE.md)
# Link to Aegis Fast-Track Playbook:
docs/current/AEGIS_FAST_TRACK_PLAYBOOK.md

Technical Specifications

Frequently Asked Questions