Coding assistants are excellent at working inside a local task. Problems emerge when a second session does not know which migrations ran, why an API decision was made, or what a previous agent discovered. Persistent project memory is a workflow, not merely a switch in an editor.
Begin with a minimal source-of-truth structure
Create a project overview, architecture decisions, release notes, and a short operational runbook. The overview should describe the product and repository layout. Architecture decisions should document the alternatives, choice, rationale, and supersession status. Release notes should list changes that actually shipped. The runbook should contain verified build and test commands.
Store these artifacts in formats that can be inspected outside an AI vendor's interface. Portable Markdown works well because both developers and tooling can read it.
Make decisions retrievable
A long file named “notes” is not a retrieval strategy. Give each meaningful decision a stable heading or identifier and link it to the implementation area it governs. Add dates, evidence, and an explicit status.
For example, a decision to route all production writes through a validated service layer should appear both in the architecture record and in the coding agent's task briefing. An agent searching only for “database” might otherwise find an obsolete SQL snippet and bypass the required path.
Use MCP for bounded cross-tool access
Phasoric documents an MCP gateway for compatible clients, including Claude, Codex, Cursor, and VS Code workflows. A hosted mapping is authorized and scoped; it is not equivalent to granting every assistant unrestricted access to every local file.
Connect one client first, verify that a permitted read finds the current project brief, and test that a disallowed source remains inaccessible. Expand access only after those checks succeed. Follow the client-specific setup guide because supported connection paths differ.
Define write boundaries before automation
A coding agent may propose a migration, a release note, or an update to project knowledge. Keep proposal creation separate from application. The repository's Forge documentation describes approval-first operations with previews and collision detection. Apply the same discipline to any process that mutates a knowledge base.
A reproducible workflow records what changed, why it changed, and which revision was approved. If a second agent repeats a request, idempotency protects against duplicate effects.
Evaluate memory with a real handoff
Complete a small coding task, close the session, and open a different assistant. Ask the new assistant to describe the settled decisions, relevant tests, and unresolved risks without receiving the previous transcript. Then verify each answer against repository sources.
If the second assistant gives a polished but incorrect answer, improve source organization, authority signals, or retrieval scope rather than simply adding more instructions.
Next steps
See the Phasoric developer center for MCP client setup and architecture references.