diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index ade69c9..065d1e9 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -8,7 +8,7 @@
       "name": "indigo",
       "source": "./",
       "description": "Indigo home automation development toolkit \u2014 plugin development, API integration, and control page building",
-      "version": "2.1.0",
+      "version": "2.1.1",
       "repository": "https://github.com/simons-plugins/indigo-claude-plugin",
       "license": "MIT",
       "keywords": [
diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index 40111d4..dd40ace 100644
--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "indigo",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "Indigo home automation development toolkit \u2014 plugin development, API integration, and control page building",
   "repository": "https://github.com/simons-plugins/indigo-claude-plugin"
 }
diff --git a/commands/debug-sqllogger.md b/commands/debug-sqllogger.md
index 084e18b..995a843 100644
--- a/commands/debug-sqllogger.md
+++ b/commands/debug-sqllogger.md
@@ -20,7 +20,7 @@ SQL Logger Error: One or more failures updating device history; see the debug lo
 
 repeating every ~60s — no device ID, no traceback.
 
-This command temporarily patches SQL Logger's two swallowed
+This command temporarily patches SQL Logger's three swallowed
 `logger.debug` call sites to `error` level (tagged `[DEBUG-PATCH]`),
 surfaces the real exception, names the failing device via MCP, and
 then asks which of three fixes to apply:
@@ -46,8 +46,9 @@ At-a-glance phases:
 1. **CONFIRM + DISCOVER** — verify errors are actively repeating
    (`query_event_log`), locate SQL Logger plugin + log via
    `mcp__indigo__list_plugins`
-2. **PATCH** — promote the two `logger.debug(..., exc_info=True)`
-   calls in `_update_device_history` and `_create_table_for_dev` to
+2. **PATCH** — promote the three swallowed `logger.debug` calls
+   (update, schema-update, and create paths in
+   `_update_device_history` / `_create_table_for_dev`) to
    `logger.error` tagged `[DEBUG-PATCH]`, restart plugin
 3. **EXTRACT** — read plugin log, pull `device_history_<id>` and
    exception class, resolve device via `get_device_by_id`
diff --git a/skills/debug-sqllogger/SKILL.md b/skills/debug-sqllogger/SKILL.md
index e62824c..da780af 100644
--- a/skills/debug-sqllogger/SKILL.md
+++ b/skills/debug-sqllogger/SKILL.md
@@ -91,7 +91,7 @@ Derive the two working paths:
 
 ### Phase 2 — PATCH
 
-Locate the two call sites in `plugin.py` with `Grep`. Line numbers
+Locate the three call sites in `plugin.py` with `Grep`. Line numbers
 drift across SQL Logger versions — always locate by the message
 fragment, not by number:
 
@@ -100,12 +100,19 @@ fragment, not by number:
   it's at ~line 529 and already carries `exc_info=True`.
 - Create path — grep `Failed to create table .* for device history`.
   Currently at ~line 476 and does **not** carry `exc_info=True`.
+- Schema-update path — grep `Failed to update schema`. Present in
+  SQL Logger 2025.2.0 at ~line 679, inside `_update_device_history`'s
+  `(ColumnsMissing, ColumnsChanged)` retry handler; carries
+  `exc_info=True`. This path fires when the retried `insert_row`
+  after a schema refresh fails (e.g. INT4 overflow) — in a live
+  2026-07 debugging pass it was the **only** site firing, so skipping
+  it makes the whole patch cycle come up empty.
 
 Promote each to `logger.error`, prefix the message with
-`[DEBUG-PATCH] `, and ensure `exc_info=True` is present on both (add
-it to the create call if missing — without it the traceback never
-reaches the log, which defeats the point of the patch). Use `Edit`,
-not `Write`.
+`[DEBUG-PATCH] `, and ensure `exc_info=True` is present on all three
+(add it to the create call if missing — without it the traceback
+never reaches the log, which defeats the point of the patch). Use
+`Edit`, not `Write`.
 
 Update path before/after:
 
@@ -128,6 +135,16 @@ self.logger.debug(f"Failed to create table {table_name} for device history: {err
 self.logger.error(f"[DEBUG-PATCH] Failed to create table {table_name} for device history: {err}", exc_info=True)
 ```
 
+Schema-update path before/after:
+
+```python
+# before (~line 679, with exc_info=True already)
+self.logger.debug(f"Failed to update schema for {dev_table_name}: {schema_err}", exc_info=True)
+
+# after
+self.logger.error(f"[DEBUG-PATCH] Failed to update schema for {dev_table_name}: {schema_err}", exc_info=True)
+```
+
 If a `grep` finds the fragment but the surrounding arguments differ
 from the above (SQL Logger is maintained; call signatures drift),
 adapt — the invariant is *promote to error, add the DEBUG-PATCH tag,
@@ -135,6 +152,14 @@ ensure exc_info=True*. Every patched line MUST contain the literal
 string `[DEBUG-PATCH]` — the revert step relies on grep returning
 zero hits.
 
+Completeness check before restarting: grep
+`kErrorKeyDeviceHistoryError` and confirm every `logger.debug` that
+sits next to one of those `_log_error_unobtrusive` calls got
+promoted. SQL Logger is maintained and new swallowed sites appear
+between versions (the schema-update path above shipped after this
+skill was first written). A device-history error path that still
+logs at debug level will produce the Phase 3 symptom below.
+
 Restart the plugin:
 
 ```
@@ -147,7 +172,19 @@ Ask the user to wait one error cycle (~60s) and signal when ready.
 Do not sleep blindly — the cadence varies with server load.
 
 Read the last 200 lines of the plugin log and search for
-`[DEBUG-PATCH]`. The first matching line names the failing table:
+`[DEBUG-PATCH]`. If the generic error keeps repeating but **no**
+`[DEBUG-PATCH]` line appears after a full cycle, first rule out the
+mundane causes: confirm the plugin actually restarted after the
+patch deployed (grep the plugin log for the restart banner, or check
+the event log for "Started plugin") and that you're reading the
+right log file (`ls -lt` the log directory; rotation can leave you
+tailing yesterday's file). Only once the patched code is confirmed
+live does a missing marker mean a swallowed call site was missed —
+then go back to the Phase 2 completeness check and grep
+`kErrorKeyDeviceHistoryError` for an unpromoted `logger.debug`
+neighbour (this is exactly how the schema-update path was found).
+
+The first matching line names the failing table:
 
 ```
 [DEBUG-PATCH] Failed to update table device_history_1234567 for device 1234567: integer out of range
@@ -265,12 +302,13 @@ skill's own extraction output.
 
 ### Phase 6 — REVERT
 
-Undo every patch. Up to three regions may need reverting:
+Undo every patch. Up to four regions may need reverting:
 
 1. `_update_device_history` logger call — restore to
    `self.logger.debug(...)`, remove `[DEBUG-PATCH]` prefix
-2. `_create_table_for_dev` logger call — same
-3. `startup()` one-shot DROP block (option c only) — delete the whole
+2. `_update_device_history` schema-update logger call — same
+3. `_create_table_for_dev` logger call — same
+4. `startup()` one-shot DROP block (option c only) — delete the whole
    try/except block
 
 Verify cleanup with Grep:
@@ -326,7 +364,7 @@ happening, what to do next.
   any point after Phase 2 — user cancels, log-read finds nothing,
   extraction fails, any error, interrupt, or user "none" in Phase 4 —
   the first action before exiting is a full Phase 6 revert
-  (restore both `logger.debug` call sites, remove any `startup()`
+  (restore all three `logger.debug` call sites, remove any `startup()`
   DROP block, grep-verify zero `[DEBUG-PATCH]` hits, restart plugin).
   A patched `logger.error` left behind will spam the event log every
   ~60s at error level until noticed.