chore: import upstream snapshot with attribution

plugin/skills/remember/EXAMPLES.md

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+# remember worked examples
+
+## 1. Saving a decision
+
+User: "Remember that we decided to drop Redis and use the iii-engine state store for session caching."
+
+Invocation:
+
+```json
+memory_save {
+  "content": "We decided to drop Redis and use the iii-engine state store for session caching to remove a moving part.",
+  "concepts": "session-caching, iii-state-store, dropped-redis",
+  "files": ""
+}
+```
+
+Response:
+
+```json
+{ "id": "7f3a9c21", "concepts": ["session-caching", "iii-state-store", "dropped-redis"], "saved": true }
+```
+
+Present:
+
+> Saved. Tagged it `session-caching`, `iii-state-store`, `dropped-redis`, so a
+> later recall on caching or Redis will surface this decision.
+
+## 2. Saving a code-specific gotcha
+
+User: "Save this: the rate limiter in middleware/limit.ts counts per-IP, not per-user, so logged-in users on shared IPs collide."
+
+Invocation:
+
+```json
+memory_save {
+  "content": "The rate limiter in middleware/limit.ts counts per-IP, not per-user, so logged-in users on shared IPs collide.",
+  "concepts": "rate-limiter, per-ip-bug, shared-ip-collision",
+  "files": "src/middleware/limit.ts"
+}
+```
+
+Response:
+
+```json
+{ "id": "b21d004e", "concepts": ["rate-limiter", "per-ip-bug", "shared-ip-collision"], "saved": true }
+```
+
+Present:
+
+> Saved memory `b21d004e` referencing `src/middleware/limit.ts`. Concepts:
+> `rate-limiter`, `per-ip-bug`, `shared-ip-collision`.
+
+## 3. Vague request, no files
+
+User: "Remember this for later."
+
+Ask once for the substance, then save:
+
+```json
+memory_save {
+  "content": "Staging deploys must run the migration job before the app rollout, never after.",
+  "concepts": "staging-deploy, migration-ordering, rollout-sequence",
+  "files": ""
+}
+```
+
+Present the confirmation with the concepts echoed back.