# Read Before Coding

Before editing code, verify that the implementation plan already passed the planning gate.

If the plan is stale, missing, or based on incomplete docs, return to `.project-docs/05-agent-entry/read-before-planning.md`.

Before editing files, read the project docs and source files directly related to the target modules. If implementation reveals stale project docs, record the discrepancy in `.project-docs/90-maintenance/stale-items.md` or update the relevant docs after the task completes.