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.opc/skills/memory/SKILL.md

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+---
+name: memory
+description: Manage durable global/project memory in `.opc/memory/global.md` and `.opc/memory/projects/<current_project_id>.md`.
+always: true
+---
+
+# Memory
+
+Use this skill only for durable Markdown memory:
+- Global memory: `.opc/memory/global.md`
+- Project memory: `.opc/memory/projects/<current_project_id>.md`
+- Prefer the absolute `OPC_GLOBAL_MEMORY_PATH` and `OPC_PROJECT_MEMORY_PATH` shown in runtime context or environment; do not create a separate `.opc/memory` under the workplace.
+
+## What To Save
+
+- Global: stable cross-project user preferences, communication defaults, standing constraints.
+- Project: current-project preferences, workspace overrides, repo paths, architecture constraints, coding conventions, delivery requirements.
+- Never save secrets, copied transcripts, temporary progress, speculative notes, or one-off task results.
+
+## When to Update
+
+- Update only during interaction with the user, and only when the user states or confirms something that should matter in later sessions.
+
+## How to Update
+
+Read before editing. Merge, deduplicate, replace stale items, and keep entries compact. Do not mix project IDs: write project memory only to the current project's file.