CPTD CLI Security Policy: Architecture of Trust and Execution Control

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CPTD CLI

CPTD CLI is engineered with the principles of Zero Trust Execution, OS-level Runtime Validation, and Explicit Dependency Governance. Every command is subjected to rigorous checks on compatibility, structural integrity, environmental constraints, and execution policy.

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🔍 1. Execution Environment Control (Runtime OS Enforcement)

Each CPTD CLI command begins with:

from cptd_tools.os_guard import ensure_compatible
ensure_compatible(__file__)

This mechanism:

• Parses the manifest.yaml or manifest.json and extracts the target field
• Performs a temporary binding of the command to the active OS
• If incompatible:
  • 💬 Displays a critical warning
  • 🧨 Self-deletes the command directory
  • 🚫 Immediately halts execution via sys.exit(1)

This ensures that a command can never run outside its intended platform, even if manually copied into the system.

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🔒 2. Strict Ban on Unauthorized Dependency Installation

CPTD CLI adheres to the principle of deterministic builds:

• Automatic dependency installation using pip, subprocess, os.system, or any similar means is strictly prohibited
• All required packages must be explicitly declared in both manifest files
• The CLI prompts the user for interactive confirmation before any install: [?] Install dependencies via pip? [Y/n]

This prevents supply chain injections and eliminates unpredictable environments.

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🧱 3. Rigid Validation of Command Architecture

Every imported command is validated against a comprehensive structural specification:

• 📦 No nested folders matching the command name are allowed
• 🎯 entrypoint: main.py must be declared in both manifest files
• 🔐 Structural metadata (SYNTAX) and a run(argv) function are mandatory
• ✅ Commands must handle --help using print_help(SYNTAX) — not argparse
• 💾 Both .yaml and .json manifests are required for human and machine interoperability

This enforces structural transparency, supports safe integration, and guarantees fail-safe behavior.

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🧼 4. Clean, Modular, and Predictable Code

CPTD CLI enforces:

• Minimal dependencies
• Modular folder layout (util/, service/, core/)
• No superfluous imports or side-effects

Only commands conforming to secure scripting best practices are admitted into the CLI environment.

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🔁 5. Self-Purging Commands and Core Integrity

CPTD CLI employs a self-healing execution model:

• Any command launched on an unsupported OS will automatically remove itself
• This eliminates the accumulation of dead or potentially harmful binaries

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📜 6. Verifiable Metadata and Licensing Compliance

Each command must include:

• A complete manifest set: name, version, entrypoint, target, license, author, dependencies, email, github
• Support for open-source licenses such as MIT, CC, BSD, or custom via license.md

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💡 Final Statement

CPTD CLI is not just a command-line interface — it’s a governed execution environment with guarantees typically reserved for compiled ecosystems.

With strict segmentation, runtime validation, and manifest-driven control, CPTD CLI provides a predictable, secure command execution architecture, tailored for modular tooling and high-assurance environments.

CRYPTOPROTOS (CPTD CLI)
https://www.cptdcli.com/
PIP CPTD Version: 2.0.4