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ZeroScan (.agent/) — Project Memory V2.1.3

CI Suite PyPI - Version License: MIT Python: 3.9+ Context Budget

# Instant Installation via pip
pip install zeroscan

# Instant Bootstrap in any repository
zeroscan-bootstrap --name "my-awesome-project" --mission "Build scalable AI systems"

🇬🇧 English | 🇻🇳 Tiếng Việt | 📘 Usage Guide | 📕 Hướng dẫn sử dụng | 🚀 Deep-Dive Article

The Universal, Model-Agnostic Context & Memory Protocol for ANY AI Coding Agent
Native support for Claude 3.5, GPT-4o, Gemini 1.5, DeepSeek-V3, Qwen 2.5, Llama 3.3, Cursor, Windsurf, Trae, Codex, and Hermes.


🌟 Overview

Zero-Scan Project Memory V2.1.3 is an open standard designed to eliminate context bloat, hallucination, and directory-crawling overhead in AI-driven software development.

Traditional coding agents waste tens of thousands of tokens scanning entire codebases upon startup. Project Memory replaces scanning with a lightweight, Git-bound Level 0 Boot Anchor (BOOT.md < 1 KB) and an architectural GPS Map (PROJECT_MAP.json), ensuring agents boot instantly with <= 10 KB of total context.

┌─────────────────────────────────────────────────────────────┐
│                    ANY LLM / AI AGENT                       │
│  (Claude 3.5 · GPT-4o · Gemini 1.5 · DeepSeek · Qwen · Llama)│
└──────────────────────────────┬──────────────────────────────┘
                               │
               ┌───────────────┴───────────────┐
               ▼                               ▼
       MCP Protocol Server               CLI Engine
      (Cursor / Windsurf / Trae)      (Terminal / CI/CD)
               │                               │
               └───────────────┬───────────────┘
                               ▼
              ┌─────────────────────────────────┐
              │      Zero-Scan Context Core     │
              │  • Level 0 Boot Anchor (BOOT)   │
              │  • GPS Module Routing (MAP)     │
              │  • Concurrency Locking (flock)  │
              │  • Resilient JSON (.bak)        │
              └────────────────┬────────────────┘
                               ▼
                    TARGET GIT REPOSITORY

💡 Why Zero-Scan Outperforms Full Scans

1. Zero-Scan Startup (Level 0 Boot Anchor)

Traditional agents ingest entire repositories on every session turn, easily burning 30,000–200,000+ tokens before writing a single line of code. With Zero-Scan, agents read only BOOT.md (~1 KB / ~500 tokens), instantly understanding the architecture and current task without touching unrelated files.

2. GPS Navigation via PROJECT_MAP.json

Instead of running expensive recursive regex greps across the repository, agents query PROJECT_MAP.json to navigate directly to the source files and test suites of the active domain.

3. Architectural Decision Locking (ADR Invariants)

Critical architectural decisions are recorded in DECISIONS.md under [LOCKED] status. Agents are strictly prohibited from modifying locked decisions without explicit approval.

4. Immutable Evidence Gate & Git SHA Binding

A task is considered DONE only when validated with real test execution evidence (pytest, unittest) and bound to a verifiable Git Commit SHA.


🛡️ V2.1.3 Enterprise-Grade Engineering Highlights

  1. ⚡ Atomic State-to-Boot Auto-Sync: Updating PROJECT_STATE.json automatically re-renders BOOT.md in real-time, preventing state drift.
  2. 🔄 Resilient JSON Loader & .bak Fallback: Automatic recovery from backup snapshots when state files are empty or corrupted.
  3. 🔒 Cross-Platform Concurrency Locking: Multi-agent concurrent write protection using fcntl.flock on Unix and atomic spinlocks on Windows with strict timeout exceptions.
  4. 🛡️ Atomic Bootstrap Staging & Rollback: Scaffolding takes place in a temporary staging directory first, ensuring zero data loss if network or generation fails.
  5. 📦 Package Data Bundling: Templates and schemas are packaged directly into the PyPI wheel for 100% offline usage.
  6. 📦 Sized Ledger Archiving: Automatically archives completed tasks to .agent/archive/ when ledger exceeds 50 entries, keeping the active context $< 5\text{ KB}$.

📁 The .agent/ Directory Structure

.agent/
├── BOOT.md              # [MANDATORY FIRST READ] Level 0 session boot anchor (< 1 KB)
├── PROJECT_STATE.json   # Repo state machine (bound to code_commit and memory_commit)
├── PROJECT_MAP.json     # Codebase GPS map: Domain -> File Paths -> Test Suites
├── DECISIONS.md         # Active Architectural Decision Records (ADRs) marked [LOCKED]
├── NEXT_TASK.md         # Detailed specification of active task, domains & acceptance criteria
├── TASK_LEDGER.jsonl    # Append-only immutable task ledger
├── MEMORY_PROTOCOL.md   # 10 mandatory agent behavioral rules
├── memory.py            # Core CLI engine for validation, metrics, and state synchronization
└── archive/             # Automated archive directory for completed tasks (> 50 items)

⚠️ 8 Common Pitfalls & Recovery Protocols

# Pitfall / Anti-Pattern Root Cause Real-World Impact Zero-Scan Defense Protocol
1 The Stale State Trap Agent completes work but forgets to update BOOT.md / PROJECT_STATE.json. Next session restarts from stale state, causing duplicate work. Session Exit Gate: Enforce zeroscan checkpoint before turn completion.
2 Decisions Bloat Trap Accumulating dozens of trivial ADRs in DECISIONS.md $> 20\text{ KB}$. Blows past 10 KB budget, inflating KV-cache VRAM. Compaction Protocol: Stabilized decisions consolidated into axioms; history archived.
3 Concurrent State Collision Multiple subagents writing to PROJECT_STATE.json simultaneously. Lost updates or corrupted JSON writes. Advisory File Lock & Atomic Writes: file_lock context manager + .tmp.<pid> + fsync + os.replace.
4 Accidental Full-Scan Drift Agent invokes unrestricted grep -r across node_modules / venv. Floods context window with 100k+ tokens, degrading model attention. Strict GPS Routing: Agents query PROJECT_MAP.json to open active domain files only.
5 Phantom Commit Binding Agent marks task DONE without committing code to git first. State claims task verified, but Git HEAD is uncommitted. Git Verification Guard: zeroscan validate checks git rev-parse HEAD against recorded hashes.
6 Git Branch Drift Switching git branches while .agent/ tracks a different branch. Agent acts on objectives from another feature branch. Branch-Aware Ledger: Tasks tagged with branch names; zeroscan sync aligns state.
7 Greedy MCP Context Bleed MCP clients fetch full history (50+ tasks) into system prompts. Token waste and prompt dilution. Selective View Filters: zeroscan_read_state defaults to compact mode ($\le 1\text{ KB}$, 3 active tasks).
8 Git Rebase Deadlock Strict commit verification aborts git rebase or detached HEAD CI builds. CI/CD build failures during automated squash/merge. Non-Blocking Rebase Bypass: Validator detects .git/rebase-merge environments gracefully.

🚀 Quickstart & CLI Operations

# 1. Install via pip
pip install zeroscan

# 2. Bootstrap any repository
zeroscan-bootstrap --name "my-project" --mission "Build Agent Fleet" --domains "core,api,auth,db"

# 3. Check status & validate budget compliance
zeroscan status
zeroscan validate

# 4. Record task completion with evidence & update next task
zeroscan checkpoint --task-id "TASK-001" --summary "Implement auth module" --evidence "pytest 15/15 pass" --next-task-id "TASK-002" --next-task-desc "Build billing API"

# 5. Record an Architectural Decision Record (ADR)
zeroscan add-decision --id "ADR-002" --title "Use PostgreSQL for DB" --decision "Adopt Postgres 16 for ACID compliance"

# 6. Start MCP Server for Cursor / Claude Desktop / Windsurf
zeroscan-mcp

Release files for zeroscan 2.1.3

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