session-memory: Read-before-Edit reflex + curated pattern (WP-0008)

Acts on the #1 friction finding. T01: added a data-cited Read-before-Edit /
re-read-on-stale reflex to AGENTS.md (top error: 'File has not been read yet',
12/27 sessions). T02: captured it as a curated SolutionPattern
(sp-problem-file_not_read-edit, approved/distribution_ready) with real
resolutions + per-flavor hints, so Distribute proposes it across repos/flavors —
closing assess->curate->distribute on a real pattern. Suite 126/126.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

session_memory/catalog/sp-problem-file_not_read-edit.json

@@ -0,0 +1,58 @@
+{
+  "created_at": "2026-06-07T13:26:25Z",
+  "distribution_ready": true,
+  "id": "sp-problem-file_not_read-edit",
+  "name": "Read before you Edit",
+  "polarity": "problem",
+  "problem": "Agents call Edit/Write on a file they have not read in the current session, or after it changed under them. The edit tools reject this ('File has not been read yet' / 'File has been modified since read'), and the retry burns a turn. Top recurring error in the corpus (12/27 sessions, 8 repos).",
+  "provenance": {
+    "detected_at": null,
+    "evidence": {
+      "frequency": 32,
+      "origin": "AGENTIC-WP-0006 error mining / ASSESSMENT-infra-friction.md",
+      "polarity": "problem",
+      "repos": 8,
+      "sessions": 12
+    },
+    "promoted_at": null,
+    "source_key": "problem:file_not_read:edit"
+  },
+  "rendering_hints": {
+    "claude": {
+      "target": "CLAUDE.md"
+    },
+    "codex": {
+      "target": "AGENTS.md"
+    },
+    "grok": {
+      "target": ".grok/instructions.md"
+    }
+  },
+  "resolutions": [
+    {
+      "detail": "Never blind-write a file you haven't read this session.",
+      "steps": [
+        "Read the target file",
+        "Then Edit/Write"
+      ],
+      "summary": "Read the file (or the region you'll touch) before Edit/Write"
+    },
+    {
+      "detail": "A stale read means the file changed under you; refresh, don't loop.",
+      "steps": [
+        "Re-Read the file",
+        "Re-apply the Edit"
+      ],
+      "summary": "On 'modified since read', re-Read then re-Edit"
+    }
+  ],
+  "schema_version": 1,
+  "scope": {
+    "domains": [],
+    "flavors": [],
+    "repos": []
+  },
+  "status": "approved",
+  "updated_at": "2026-06-07T13:26:25Z",
+  "version": "1.0.0"
+}