Mythos Router

Mythos Router is a local command-line interface tool designed to enforce strict verification of file edits made by AI agents on a user's filesystem. By acting as an execution boundary, it ensures that every file modification proposed by an agent is treated as a claim that must be proven against the actual disk state, using before-and-after snapshots, hashes, and verification status. This approach aims to prevent AI models from misrepresenting changes to code or files, requiring successful edits to match the real-world outcome before they are accepted.

The tool offers several operational modes to suit different workflows. Users can run Mythos as the agent itself, allowing it to call a configured provider and verify all file edits, or use it as a boundary layer for another external agent. For teams, Mythos can load repository rules, review expectations, and risk surfaces, making these available in every session. It supports one-shot run mode for scriptable, single-use tasks, and provides interactive chat capabilities. The verification process is central, with the SWD (Strict Write Discipline) engine applying and confirming changes, rolling back failed writes, and generating receipts that record file hashes, provider or agent metadata, git context, and drift checks.

Mythos Router integrates with MCP clients, functioning as a local tool server for dry-runs, verified applies, rollback, receipts, and skill inspection. md documents from local project signals without executing scripts or model calls. All verified runs produce local receipts, ensuring an auditable trail of actions and outcomes.

The tool is installed locally via npm and can be used globally on the command line. It is distributed under the MIT License. Access to certain beta features is available to $MYTHOS token holders, and it operates within the mythos-router ecosystem on the Base network.