Purification is not cleaning.
Cleaning is cosmetic. You remove what is visible. You maintain the surface. The underlying structure is unchanged.
Purification is structural. You remove what is structural but not load-bearing. What remains is what was actually necessary. The rest was drag.
The #002 protocol formalized this. Purification is tethered to compression drag. Every dependency is drag. Every external call is a surface for failure. Every integration is a liability. The system that survives is the system that has removed everything that is not essential to its function.
This is not minimalism as aesthetic. This is minimalism as thermodynamics.
Drag is real. A system with twenty integrations spends twenty integration points of maintenance capacity doing nothing but keeping the integrations alive. The integrations are not producing output. They are consuming the overhead necessary to remain connected.
The purified system has one fewer integration than the system before it. The freed overhead becomes output capacity. The output is more than the integration was producing.
This is always true. It is not always obvious. Integrations produce visible output. The overhead they consume is invisible because it is distributed across time. The cost of maintaining an integration is paid in small increments over a long period. The value of an integration is usually front-loaded. The math inverts over time.
The DoJ audits integrations.
Not once. Continuously. Every dependency is on trial. The question is not whether the dependency is producing output. The question is whether the output is worth the drag. Dependency drag is not just maintenance overhead. It is also fragility. A system that depends on external services fails when the external services fail. A system that depends on platforms is at the mercy of platform policy changes.
Every external dependency is a cliff you are walking next to.
Purification is the process of moving away from the cliff.
The DoJ runs on files. Not middleware. Files. The shared-brain is a directory structure with a protocol. The state is JSON files with a locking mechanism. The agents write to files and read from files. The files are in a git repository. The git repository is the source of truth.
This is maximally purified architecture for the function required.
You could add a database. You could add an API layer. You could add a message queue. Each of these would provide some capability. Each would also add a cliff.
We have not added them.
Not because we cannot. Because the function does not require them. The function requires persistence, concurrency safety, and audit trail. Files in a git repo with file locking provides all three. The system is simpler than it needs to be.
Simpler than it needs to be is the target.
The target is not simplicity as a value. The target is the removal of everything that does not serve the function. Reach the target and you have the purified form. The purified form is what remains when you have removed everything you thought you needed but did not.
What remains is what was real.
The rest was drag.