From 1c3558c37c820e75cb145aaa483dfc00e67f715e Mon Sep 17 00:00:00 2001
From: cliu <cliu@noreply.git.yokogawa.tech>
Date: Wed, 30 Sep 2026 14:01:33 +1000
Subject: [PATCH] Complete phase 1 and build the CI-Eng-Sample project

Add verified system-management tasks (item read/write, quick load
records, history load, monitoring processes, consistency check, tuning
checks), the importable CI-Eng-Sample project with load/remove scripts,
the unlicensed 1-hour shutdown note, and the sample-project re-test
rule. Close ISS-002/003/004 and log ISS-005..007.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 .claude/skills/system-check/SKILL.md          |  6 ++
 .claude/skills/system-management/SKILL.md     | 12 ++-
 .../tasks/consistency-check.md                | 39 ++++++++
 .../system-management/tasks/export-dataset.md | 24 ++++-
 .../system-management/tasks/load-history.md   | 77 ++++++++++++++++
 .../tasks/load-remove-records.md              | 92 +++++++++++++++++++
 .../tasks/monitoring-processes.md             | 61 ++++++++++++
 .../tasks/read-write-item.md                  | 68 ++++++++++++++
 .../system-management/tasks/tuning-checks.md  | 44 +++++++++
 CLAUDE.md                                     |  5 +-
 examples/CI-Eng-Sample/.gitignore             |  1 +
 examples/CI-Eng-Sample/01_section_df.qli      | 15 +++
 examples/CI-Eng-Sample/02_item_df.qli         | 20 ++++
 examples/CI-Eng-Sample/03_his_group_df.qli    | 13 +++
 examples/CI-Eng-Sample/04_item_his_df.qli     | 13 +++
 .../CI-Eng-Sample/89_remove_item_his_df.qli   | 13 +++
 .../CI-Eng-Sample/90_remove_his_group_df.qli  | 12 +++
 examples/CI-Eng-Sample/91_remove_item_df.qli  | 19 ++++
 .../CI-Eng-Sample/92_remove_section_df.qli    | 15 +++
 examples/CI-Eng-Sample/README.md              | 92 ++++++++++++++-----
 examples/CI-Eng-Sample/load.cmd               | 12 +++
 .../monitoring/intcpumon.sup.txt              |  5 +
 .../monitoring/intdskmon.sup.txt              |  5 +
 .../CI-Eng-Sample/monitoring/intmon.sup.txt   |  3 +
 .../CI-Eng-Sample/monitoring/intspawn.sup.txt |  6 ++
 .../monitoring/inttcpmon.sup.txt              |  4 +
 examples/CI-Eng-Sample/remove.cmd             | 16 ++++
 knowledge/issues.md                           | 11 ++-
 knowledge/manuals/IM36K10J10-01EN.md          |  7 +-
 knowledge/progress.md                         | 44 +++++----
 30 files changed, 699 insertions(+), 55 deletions(-)
 create mode 100644 .claude/skills/system-management/tasks/consistency-check.md
 create mode 100644 .claude/skills/system-management/tasks/load-history.md
 create mode 100644 .claude/skills/system-management/tasks/load-remove-records.md
 create mode 100644 .claude/skills/system-management/tasks/monitoring-processes.md
 create mode 100644 .claude/skills/system-management/tasks/read-write-item.md
 create mode 100644 .claude/skills/system-management/tasks/tuning-checks.md
 create mode 100644 examples/CI-Eng-Sample/.gitignore
 create mode 100644 examples/CI-Eng-Sample/01_section_df.qli
 create mode 100644 examples/CI-Eng-Sample/02_item_df.qli
 create mode 100644 examples/CI-Eng-Sample/03_his_group_df.qli
 create mode 100644 examples/CI-Eng-Sample/04_item_his_df.qli
 create mode 100644 examples/CI-Eng-Sample/89_remove_item_his_df.qli
 create mode 100644 examples/CI-Eng-Sample/90_remove_his_group_df.qli
 create mode 100644 examples/CI-Eng-Sample/91_remove_item_df.qli
 create mode 100644 examples/CI-Eng-Sample/92_remove_section_df.qli
 create mode 100644 examples/CI-Eng-Sample/load.cmd
 create mode 100644 examples/CI-Eng-Sample/monitoring/intcpumon.sup.txt
 create mode 100644 examples/CI-Eng-Sample/monitoring/intdskmon.sup.txt
 create mode 100644 examples/CI-Eng-Sample/monitoring/intmon.sup.txt
 create mode 100644 examples/CI-Eng-Sample/monitoring/intspawn.sup.txt
 create mode 100644 examples/CI-Eng-Sample/monitoring/inttcpmon.sup.txt
 create mode 100644 examples/CI-Eng-Sample/remove.cmd

diff --git a/.claude/skills/system-check/SKILL.md b/.claude/skills/system-check/SKILL.md
index 9eb3042..007248c 100644
--- a/.claude/skills/system-check/SKILL.md
+++ b/.claude/skills/system-check/SKILL.md
@@ -71,6 +71,12 @@ prompt. Setup files (`*.sup`) are plain text (CRLF); edit them with the Setup Fi
   `tls\exe\ciserv.exe`). From a non-elevated shell `Start-Service StartCIServer` fails with
   "Cannot open StartCIServer service". Start it from an elevated prompt:
   `Start-Service StartCIServer` (or Services › CI Service › Start).
+- **Unlicensed systems shut down after about 1 hour.** All CI Server processes exit, the
+  `StartCIServer` service still shows *Running*, and every tool fails with
+  `umh_panic: <tool>, license expired`. To recover, **stop then start** the CI Service
+  (elevated): `Stop-Service StartCIServer` then `Start-Service StartCIServer`. Before a long
+  task on an unlicensed system, note the start time (`(Get-Process ciserv).StartTime`) and
+  restart first if the hour is nearly up.
 
 ## 4. Time synchronization
 
diff --git a/.claude/skills/system-management/SKILL.md b/.claude/skills/system-management/SKILL.md
index 2d71850..c09ab1c 100644
--- a/.claude/skills/system-management/SKILL.md
+++ b/.claude/skills/system-management/SKILL.md
@@ -2,8 +2,8 @@
 name: system-management
 description: >-
   CI Server R1.03 system management and command-line tools. Use when the user wants
-  to stop CI Server, export or
-  import dataset contents (dssqld), read or write item values (itmval), load or import history,
+  to stop CI Server, export dataset contents, load or remove records with quick load files
+  (dssqld, .qli), create sections or items in bulk, read or write item values or limits (itmval), load or import history,
   check database consistency (dsschk), monitor processes/CPU/disk/network, back up or migrate
   a system, tune or debug CI Server, or plan a system layout (standalone, separate portal, HAC,
   host-to-host, enterprise) or time synchronization. Source IM 36K10J10-01EN.
@@ -24,4 +24,10 @@ Rules for every task:
 
 | Task | File | Status |
 |---|---|---|
-| Export dataset contents / dump the data dictionary | `tasks/export-dataset.md` | verified |
+| Export dataset contents (whole or filtered) / dump the data dictionary | `tasks/export-dataset.md` | verified |
+| Load or remove records with quick load files (`.qli`), e.g. sections and items | `tasks/load-remove-records.md` | verified |
+| Read / write item values and read limits | `tasks/read-write-item.md` | verified |
+| Load history from CSV (`ithloahis`) and read history back | `tasks/load-history.md` | verified |
+| Monitor CPU, disk, network, processes; run a command on an item change | `tasks/monitoring-processes.md` | verified |
+| Database consistency check (`dsschk`) | `tasks/consistency-check.md` | verified (check only) |
+| Tuning checks: limits and health snapshots | `tasks/tuning-checks.md` | verified (read-only) |
diff --git a/.claude/skills/system-management/tasks/consistency-check.md b/.claude/skills/system-management/tasks/consistency-check.md
new file mode 100644
index 0000000..7f84e4b
--- /dev/null
+++ b/.claude/skills/system-management/tasks/consistency-check.md
@@ -0,0 +1,39 @@
+---
+task: Database consistency check (dsschk)
+version: R1.03
+source: IM 36K10J10-01EN §4.1.1; practiced on the test system 2026-09-30
+status: verified (check only)
+---
+
+# Database consistency check (dsschk)
+
+Needs CI Server running. Checking is read-only; **repair (`-r`) changes the database**:
+back up first and ask the user.
+
+## Check
+
+```
+dsschk -e -v > dsschk.out
+```
+
+- `-e` extended check: also compares the duplicated datasets on this node (e.g. item
+  definitions copied by ITEM and EQUIPMENT Services). This is the useful check on a
+  **single-node** system.
+- `-v` verbose. Output lists `DSSP-I-CDS_START` / `DSSP-I-CDS_END` per dataset (228 on the
+  test system) and any problems; the same messages go to `%TLS_LOG_PATH%\umhlog.log`.
+- `-d <dataset>` checks one dataset; `-n <node>` one node.
+- Plain `dsschk` (no `-e`) only compares copies **between nodes**, so on a single node it
+  prints nothing.
+
+Look for warnings or errors: search the output for `-W-`, `-E-` or `-F-`. None = consistent.
+
+## Repair (not yet practiced)
+
+From IM 36K10J10 §4.1.1: run `dsschk -r` until no more inconsistencies are reported (or the
+same ones repeat), then `dsschk -e`, then `dsschk -e -r` (possibly twice). Read the output
+carefully; some problems need manual work.
+
+## ISAM files (not yet practiced)
+
+`ismchk <database file>` checks one ISAM file; `ismkfr [-c] [-r] [-s] [-d] <file>` rebuilds
+key files. Both need the file name (without it: `usage: ismchk data_base_name`).
diff --git a/.claude/skills/system-management/tasks/export-dataset.md b/.claude/skills/system-management/tasks/export-dataset.md
index 1260317..646ec93 100644
--- a/.claude/skills/system-management/tasks/export-dataset.md
+++ b/.claude/skills/system-management/tasks/export-dataset.md
@@ -47,6 +47,24 @@ description). Search it to find which dataset holds what, e.g. the version field
 
 ## Filtered exports
 
-`dssqld -e <output> <filter>.qli` exports using a filter file with `@<DATASET>`, `@FIELD`
-and `@SELECT` keywords (IM 36K10J10 §5.6). The exact filter syntax is **not yet verified**;
-export the whole dataset and filter the CSV instead until it is.
+Export only matching records with a filter file (IM 36K10L50 §3.6, verified 2026-09-30):
+
+```
+@SELECT
+'GROUP_NAME = "CIENG_EVENT"'
+@HIS_GROUP_DF
+```
+
+```
+dssqld -e <output>.qli <filter>.qli [-c] -l <listing>.lst
+```
+
+- `@SELECT`, then the filter in **single quotes** with strings in double quotes, then
+  `@<DATASET>`. The filter applies only to the next dataset. Operators: `=`, `!=`, `<`, `>`,
+  `and`.
+- Some datasets (e.g. `ITEM_HISTORY`, `ITEM_VAL`, `ALARM_CHRONO`) are not exported unless
+  named explicitly (`NO-EXPORT` list in `dssqld.sup`).
+- `ITEM_HISTORY` returns nothing unless the filter names `ITEM_NAME` and a `SAMPLE_TIME` range
+  (see `load-history.md`).
+- `%TLS_DAT_PATH%\dss_export.qli` is Yokogawa's own filter file for exporting all engineering
+  definitions (`dssqld -e out.qli dss_export.qli`); it also shows `@MACRO` usage.
diff --git a/.claude/skills/system-management/tasks/load-history.md b/.claude/skills/system-management/tasks/load-history.md
new file mode 100644
index 0000000..dfce558
--- /dev/null
+++ b/.claude/skills/system-management/tasks/load-history.md
@@ -0,0 +1,77 @@
+---
+task: Load item history from CSV (ithloahis) and read history back (dssqld)
+version: R1.03
+source: IM 36K10J10-01EN §2.9.2; IM 36K10L50-01EN §3.6; practiced with CI-Eng-Sample 2026-09-30
+status: verified
+---
+
+# Load item history (ithloahis) and read it back
+
+**Writes to the history database.** Needs CI Server running and the items linked to an
+item storage group of type *Event/Item* or *Event/Event*. The sample project provides
+`CIENG_EVENT` with `CI-Eng-Sample.TANK1.LEVEL` and `.INFLOW`.
+
+## Before loading
+
+- A **new** storage group stores nothing until CI Server has been restarted (stop, then start
+  the CI Service). Restart after creating a group.
+- Only samples dated **after the start of the current storage unit** were stored; older ones
+  were silently skipped (see `knowledge/issues.md` ISS-006). A restart starts a new unit.
+
+## Input files
+
+Event file: one sample per line.
+
+```
+EVENT
+<time>,<item>,<value>
+1790739700,CI-Eng-Sample.TANK1.LEVEL,47
+```
+
+Scan file: several items per line (max 100), one line per timestamp.
+
+```
+SCAN,CI-Eng-Sample.TANK1.LEVEL,CI-Eng-Sample.TANK1.INFLOW
+1790739715,61,101
+1790739720,62,102
+```
+
+Time is seconds since 1970 (UTC), optionally with a fraction, or a date text such as
+`29-Apr-14 11:48:17.452`. Quotes and spaces around fields are optional. A blank value in a
+scan line is skipped.
+
+## Load
+
+```
+ithloahis -f <file>.csv -v
+```
+
+- `-v` shows progress (`Handle event based table`, `item … on column n`).
+- `-t GMT|LST|LCT` sets how text times are read (default GMT).
+- `-s <section>` puts a section in front of every item name.
+- `-i` also updates the item's current value (can raise alarms and trigger objects; loads the
+  system). Without it, only history is written.
+
+## Read history back
+
+`ITEM_HISTORY` is not exported by default; use a filter file that names the item **and** a
+time range, otherwise nothing is returned:
+
+```
+@SELECT
+'ITEM_NAME = "CI-Eng-Sample.TANK1.LEVEL" and SAMPLE_TIME > "30-09-2026 00:00:00" and SAMPLE_TIME < "01-10-2026 00:00:00"'
+@ITEM_HISTORY
+```
+
+```
+dssqld -e history.qli <filter>.qli -c -l history.qlo
+```
+
+Result columns include `NAME` (`<group>:<item>/<time>/Value`), `SAMPLE_TIME`, `ITEM_VALUE`,
+`QUALITY`. Values written live (e.g. with `itmval -p`) and the value at CI Server start also
+appear.
+
+## Verified (CI-Eng-Sample, 2026-09-30)
+
+SCAN load of LEVEL 61–63 / INFLOW 101–103 and EVENT load of LEVEL 47, 48 were all read back
+with the filter above.
diff --git a/.claude/skills/system-management/tasks/load-remove-records.md b/.claude/skills/system-management/tasks/load-remove-records.md
new file mode 100644
index 0000000..70d50f9
--- /dev/null
+++ b/.claude/skills/system-management/tasks/load-remove-records.md
@@ -0,0 +1,92 @@
+---
+task: Load and remove dataset records with dssqld (quick load)
+version: R1.03
+source: IM 36K10J10-01EN §2.9.2, §5.6; IM 36K10L45-01EN §9.10–9.11; practiced with CI-Eng-Sample 2026-09-30
+status: verified
+---
+
+# Load and remove dataset records (dssqld quick load)
+
+**Writes to the CI Server database.** Needs CI Server running. Follow the user's chosen way
+of working: in *prepare only* mode, write the `.qli` files and a `.cmd` script for the user to
+run. Test on a test system first.
+
+## Quick load file format (.qli)
+
+```
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! comment
+@FIELDS
+NAME,SECTION_PATH,SECTION_NAME,DESCRIPTION
+
+@SECTION_DF
+"CI-Eng-Sample","","CI-Eng-Sample","CI-Eng-Sample project"
+"CI-Eng-Sample.TANK1","CI-Eng-Sample","TANK1","Sample tank 1"
+```
+
+- `@FIELDS` lists the fields in the records that follow; the next `@<DATASET>` line names
+  the dataset. A file can hold several `@FIELDS` / `@<DATASET>` blocks.
+- One record per line, strings in double quotes, numbers bare, comma-separated. End a line
+  with `\` to continue the record on the next line (long `@FIELDS` lists can also wrap).
+- Only the listed fields are set; the rest take their defaults. Required fields are marked
+  "Is required on import" in the data dictionary (`dssqld -f -l dict.lst`).
+- Easiest way to get a correct template: export an existing dataset **without** `-c`
+  (`dssqld -e template.qli -d <DATASET>`); the output is already in this format.
+
+## Load (insert)
+
+```
+dssqld -i <file>.qli -l <file>.qlo
+```
+
+Summary per dataset: `Recognized`, `Imported`, `Exists` (already present, left unchanged),
+`Errors`. Check `Errors` is 0; the `.qlo` listing holds the same result.
+
+## Update (modify)
+
+```
+dssqld -m <file>.qli -l <file>.qlo
+```
+
+Changes the listed fields of existing records (the key field plus the fields to change).
+Summary: `Modified`, `Not found`, `Errors`. Verified by setting a storage group's `STOP_TIME`.
+
+## Remove (delete)
+
+```
+dssqld -r <file>.qli -l <file>.qlo
+```
+
+The file only needs the key field (`@FIELDS` `NAME`). Summary: `Removed`, `Not found`, `Errors`.
+
+**Storage groups** (`HIS_GROUP_DF`) cannot be deleted while they have an active storage unit
+(`HIS-E-GROUPHASUNT, Group still has an active unit connected`). First remove the items from the
+group (`ITEM_HIS_DF`), then set the group's `STOP_TIME` a minute ahead with `-m`, wait until it
+has passed, then delete the group. Deleting a group deletes its history.
+
+## Order matters
+
+- Load parents before children: sections (parent before child) → template items → classes
+  (compiled) → objects → other items (IM 36K10J10 §5.6) → storage groups → items in storage
+  groups (`ITEM_HIS_DF`, record name `<group>:<item>`).
+- Remove in reverse: items from storage groups, storage groups (stop first), items, sections
+  (children before parents).
+- A **new storage group stores nothing until CI Server is restarted**.
+- Linking items to a group straight after creating it failed once with 2 errors; a 5 s pause in
+  between has been reliable (`knowledge/issues.md` ISS-005).
+- Put each step in a `.cmd` script so the order is repeatable. Run scripts by full path
+  (`cmd /c "<path>\load.cmd"`); a bare name may not be found from the current folder.
+
+## Verified example
+
+`examples/CI-Eng-Sample/` (`01_section_df.qli`, `02_item_df.qli`, `load.cmd`, `remove.cmd`):
+sections, items, a storage group and its item links loaded, removed and loaded again with
+0 errors. `remove.cmd` shows how to set the storage group stop time from a script (PowerShell
+writes the `.qli`, then `Start-Sleep`; `timeout` fails when there is no console). Items need only
+`NAME` and `ITEM_REP` (`Real`, `Integer`, `Boolean`, `String`); the sample also sets
+`DESCRIPTION`, `VALUE_FORMAT`, limits and scale.
diff --git a/.claude/skills/system-management/tasks/monitoring-processes.md b/.claude/skills/system-management/tasks/monitoring-processes.md
new file mode 100644
index 0000000..ab17ad7
--- /dev/null
+++ b/.claude/skills/system-management/tasks/monitoring-processes.md
@@ -0,0 +1,61 @@
+---
+task: Monitoring processes (intcpumon, intdskmon, inttcpmon, intmon, intspawn)
+version: R1.03
+source: IM 36K10J10-01EN §4.1.6; practiced with CI-Eng-Sample 2026-09-30
+status: verified
+---
+
+# Monitoring processes
+
+INTEGRATION Service processes that write system health into items, or run a command when an
+item changes. Each is configured in its own setup file in `%TLS_ROOT_PATH%\tls\sup\`.
+
+**Changes the system's setup files.** Back each file up first. Follow the user's chosen way
+of working; in *prepare only* mode, write the lines for the user to add.
+
+## Setup file format
+
+Setup files are plain text (CRLF). Lines starting with `!` are comments and editor
+definitions (`!KEYWORD : …` shows each allowed keyword and its arguments). Active settings are
+plain `keyword = value` lines, usually added at the end. The Setup File Editor edits the same
+files.
+
+## Settings
+
+| Process | Setup lines | Item value |
+|---|---|---|
+| `intcpumon` | `interval = 10`, `logging`, `CPU = "", "<item>", ""` | CPU load %. Empty system name = this machine; empty counter = total CPU |
+| `intdskmon` | `interval = 10`, `logging`, `DISK = "C:\\", "<item>"` | **Used** % of the disk (61.9 on a disk 61.9 % used), despite the manual saying free space |
+| `inttcpmon` | `logging`, `TCP = "<host>", "<item>"` | 1 while the host answers a ping |
+| `intmon` | `process = "<process>", "<item>"` | 1 while the CI Server process runs (e.g. `alm`) |
+| `intspawn` | `TRIGGER = "<command>", "<item>", VALUE, NONE, 0` | Runs the command with the new value as argument |
+
+`intspawn` trigger modes: `VALUE`, `STATUS`, `OPTION`, `TIMER` (value = interval in s),
+`NODE_DOWN`, `NODE_UP`, `NODE`; filters `NONE`, `EQUAL`, `GREATER`, `LESS` with the value.
+**Keep the command path short**: a ~130-character path silently did nothing
+(`knowledge/issues.md` ISS-007). `intmon` also supports `node = <n>, "<item>"`,
+`channel = <line>, <node>, "<item>"` and `offline` (for multi-node systems, not tested).
+
+Tested lines for the sample project: `examples/CI-Eng-Sample/monitoring/*.sup.txt`
+(items `CI-Eng-Sample.SYSTEM.*`).
+
+## Start and stop
+
+These processes do not start by default.
+
+- For a test, start by hand (elevated): `Start-Process "$env:TLS_ROOT_PATH\tls\exe\<process>.exe" -ArgumentList "-n <process>" -WindowStyle Hidden`.
+  Stop with `Stop-Process -Name <process>`. They also stop when CI Server stops.
+- To start them with CI Server, add them to `%TLS_ROOT_PATH%\tls\com\integration_start.cmd`
+  (for `intmon`, uncomment its `start /b /normal …\intmon.exe -n intmon` line; for the others
+  add `start /B /NORMAL %TLS_ROOT_PATH%\tls\exe\<process> -n <process>` followed by
+  `start /B /NORMAL /WAIT %TLS_ROOT_PATH%\tls\exe\durwfp -p <process> -t 10`). Not yet tested.
+
+## Check
+
+Read the target items with `itmval -g -n <item>` (status 9 once updated). With `logging`, the
+processes also write to `%TLS_LOG_PATH%\umhlog.log`.
+
+## Verified (CI-Eng-Sample, 2026-09-30)
+
+CPU_LOAD 33.4, DISK_C 61.9, PING_LOCALHOST 1, PROC_ALM 1; `intspawn` wrote 0 and 1 to a file
+when `PUMP1.MODE` changed. Setup files restored afterwards.
diff --git a/.claude/skills/system-management/tasks/read-write-item.md b/.claude/skills/system-management/tasks/read-write-item.md
new file mode 100644
index 0000000..f5feef4
--- /dev/null
+++ b/.claude/skills/system-management/tasks/read-write-item.md
@@ -0,0 +1,68 @@
+---
+task: Read and write item values with itmval
+version: R1.03
+source: IM 36K10J10-01EN §2.9.2; practiced on the test system and CI-Eng-Sample 2026-09-30
+status: verified
+---
+
+# Read and write item values (itmval)
+
+Needs CI Server running. Reading is read-only. **Writing changes live data**: follow the
+user's chosen way of working (direct vs prepare only) and never write to an item that drives
+real equipment without explicit approval.
+
+Item names are full paths: `<Section>.<Sub-section>.<Tag>`, e.g.
+`CI-Eng-Sample.TANK1.INFLOW` from the sample project.
+
+## Read the current value
+
+```
+itmval -g -n <Section>.<Tag>
+```
+
+Output:
+
+```
+Value   = 130
+Status  = 9
+Options = 0xffffff88.00 ack
+Quality = 0
+```
+
+- **Status** is a number from `STATUS_DF` (export it with `dssqld -e status_df.qli -d STATUS_DF -c`
+  to look numbers up). Common ones: 9 `NORMAL`, 13 `NOT INIT` (never written; new items start
+  here), 4 / 5 `BOOLEAN 0` / `BOOLEAN 1`, 11 `HIGH HIGH`.
+- **Options** lists item flags as words after the hex value, e.g. `ack` (acknowledged),
+  `off` (item's station not communicating). `uoff` also appears on station items after a write;
+  its meaning is not yet known (see `knowledge/issues.md` ISS-001).
+
+## Read limits
+
+```
+itmval -g -n <Section>.<Tag> -a <n>
+```
+
+`<n>`: 1 deadband, 2 low, 3 high, 4 low-low, 5 high-high. The limit is returned in `Value`.
+Items with no limits configured return `ITM-E-WRONG_ATT, Wrong attribute number used`.
+
+## Write a value
+
+```
+itmval -p -n <Section>.<Tag> -v <value> [-s <status>] [-q <quality>]
+```
+
+- Read the item first and note its value, so it can be restored.
+- Booleans take `-v 0` / `-v 1`; the status follows automatically (4 / 5).
+- `-s` sets the status explicitly (e.g. `-s 9` NORMAL). Without it, a numeric write gives 9.
+- `-o` overwrites a blocked item; `-t [<date>] <time> [GMT|LST]` sets the timestamp
+  (default local civil time); `-e` writes to event history only, not the current value.
+- Read it back to confirm.
+
+## Verified examples (CI-Eng-Sample)
+
+| Command | Result |
+|---|---|
+| `itmval -p -n CI-Eng-Sample.TANK1.INFLOW -v 120.5` | Value 120.5, status 9 |
+| `itmval -p -n CI-Eng-Sample.TANK1.INFLOW -v 130 -s 9` | Value 130, status 9 |
+| `itmval -p -n CI-Eng-Sample.PUMP1.RUNNING -v 1` | Value 1, status 5 (BOOLEAN 1) |
+| `itmval -g -n CI-Eng-Sample.TANK1.LEVEL -a 2` / `-a 3` / `-a 4` / `-a 5` | 20 / 80 / 10 / 90 |
diff --git a/.claude/skills/system-management/tasks/tuning-checks.md b/.claude/skills/system-management/tasks/tuning-checks.md
new file mode 100644
index 0000000..efd792c
--- /dev/null
+++ b/.claude/skills/system-management/tasks/tuning-checks.md
@@ -0,0 +1,44 @@
+---
+task: Tuning checks (read-only)
+version: R1.03
+source: IM 36K10J10-01EN §5.5.1; practiced on the test system 2026-09-30
+status: verified (read-only checks)
+---
+
+# Tuning checks (read-only)
+
+Checks whether CI Server needs tuning. Nothing here changes the system. Changing the limits
+means editing setup files and restarting CI Server: ask the user first.
+
+## Limits in setup files (`%TLS_ROOT_PATH%\tls\sup\`)
+
+Read the active (non-`!`) lines:
+
+| File | Keyword | Meaning | Test system |
+|---|---|---|---|
+| `dur.sup` | `dur_max_proc` | Max processes (default 250) | 250 |
+| `dur.sup` | `pool_kbytes` | DUR message pool | 250000 |
+| `itm.sup` | `pool_kbytes` | Item common memory pool | 650000 |
+| `database_start.cmd` (`tls\com`) | `-u` / `-f` | Max database users (default 2K) / files (default 1,200) | not checked |
+
+## Live values: automatic health snapshots
+
+CI Server's system monitor (`smdmon`) writes debugger snapshots about every 10 minutes to
+`%TLS_LOG_PATH%\smd_<node>_<debugger>_*.log` (e.g. `smd_UNLICENCED_LOW_itmdbg_all.log`).
+Read the newest entries:
+
+| File | What to check | Target (IM 36K10J10 §5.5.1) |
+|---|---|---|
+| `*_itmdbg_all.log` | `common size` / `free size` | Free above 10 %, usage below 75 % |
+| `*_smdsnp_process.log` | Per process: `queue_size`, `queue_used`, `queue_high` | No requests waiting (`queue_used` 0); enlarge a queue that stays in use |
+| `*_ismdbg_all.log` | `Total number of lock collisions`, users, files | Collisions not rising above 250/s; entries below 80 % of max users |
+| `*_smdsnp_process.log` | Number of processes | Well below `dur_max_proc` |
+
+Test system (2026-09-30): common memory 665.6 MB, free 665.3 MB; queues empty; 3 lock
+collisions in total.
+
+## Not yet practiced
+
+Debug launchers (`jwuipoi_debug`, `jhmiset_debug`, …), interactive debuggers (`itmdbg`,
+`opcdbg`, `eqpdbg`, …), and per-process debug settings; see
+`knowledge/manuals/IM36K10J10-01EN.md` §5.5.2.
diff --git a/CLAUDE.md b/CLAUDE.md
index 012f36f..9239a56 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -45,5 +45,8 @@ cover something, say so plainly instead of guessing CI Server behavior.
 The manuals are at `C:\Users\Public\Yokogawa\tls\doc\EN\` on the development machine. Work
 proceeds manual by manual in the order in `knowledge/progress.md`: summarize the manual into
 `knowledge/manuals/`, practice each task on the test system, and record a task in a skill only
-after the user confirms it works. Track status in `knowledge/progress.md`. Log open questions
+after the user confirms it works. Tasks may be practiced first on the author's AID test
+project, but whatever they need must then be added to `CI-Eng-Sample` and re-tested there;
+a task is done only when it passes on the sample project (or needs no project data). Track
+status in `knowledge/progress.md`. Log open questions
 and problems in `knowledge/issues.md`, each with the files to update once it is resolved.
diff --git a/examples/CI-Eng-Sample/.gitignore b/examples/CI-Eng-Sample/.gitignore
new file mode 100644
index 0000000..3f93a26
--- /dev/null
+++ b/examples/CI-Eng-Sample/.gitignore
@@ -0,0 +1 @@
+*.qlo
diff --git a/examples/CI-Eng-Sample/01_section_df.qli b/examples/CI-Eng-Sample/01_section_df.qli
new file mode 100644
index 0000000..e1a15c7
--- /dev/null
+++ b/examples/CI-Eng-Sample/01_section_df.qli
@@ -0,0 +1,15 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! CI-Eng-Sample sections (CI Server R1.03.00)
+@FIELDS
+NAME,SECTION_PATH,SECTION_NAME,DESCRIPTION
+
+@SECTION_DF
+"CI-Eng-Sample","","CI-Eng-Sample","CI-Eng-Sample project"
+"CI-Eng-Sample.TANK1","CI-Eng-Sample","TANK1","Sample tank 1"
+"CI-Eng-Sample.PUMP1","CI-Eng-Sample","PUMP1","Sample pump 1"
+"CI-Eng-Sample.SYSTEM","CI-Eng-Sample","SYSTEM","Sample system monitoring"
diff --git a/examples/CI-Eng-Sample/02_item_df.qli b/examples/CI-Eng-Sample/02_item_df.qli
new file mode 100644
index 0000000..8ad63dc
--- /dev/null
+++ b/examples/CI-Eng-Sample/02_item_df.qli
@@ -0,0 +1,20 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! CI-Eng-Sample internal items (no station), CI Server R1.03.00
+@FIELDS
+NAME,DESCRIPTION,ITEM_REP,VALUE_FORMAT
+LOW_LOW_LIMIT,LOW_LIMIT,HIGH_LIMIT,HIGH_HIGH_LIMIT,SCALE_LOW_LIMIT,SCALE_HIGH_LIMIT
+
+@ITEM_DF
+"CI-Eng-Sample.TANK1.LEVEL","Tank 1 level (%)","Real","999.9",10,20,80,90,0,100
+"CI-Eng-Sample.TANK1.INFLOW","Tank 1 inflow (m3/h)","Real","9999.9",0,0,0,0,0,500
+"CI-Eng-Sample.PUMP1.RUNNING","Pump 1 running","Boolean","",0,0,0,0,0,0
+"CI-Eng-Sample.PUMP1.MODE","Pump 1 mode (0 manual, 1 auto)","Integer","9",0,0,0,0,0,1
+"CI-Eng-Sample.SYSTEM.CPU_LOAD","CPU load (%) from intcpumon","Real","999.9",0,0,0,0,0,100
+"CI-Eng-Sample.SYSTEM.DISK_C","Disk C: from intdskmon","Real","999.9",0,0,0,0,0,100
+"CI-Eng-Sample.SYSTEM.PING_LOCALHOST","localhost reachable, from inttcpmon","Integer","9",0,0,0,0,0,1
+"CI-Eng-Sample.SYSTEM.PROC_ALM","ALARM process (alm) running, from intmon","Integer","9",0,0,0,0,0,1
diff --git a/examples/CI-Eng-Sample/03_his_group_df.qli b/examples/CI-Eng-Sample/03_his_group_df.qli
new file mode 100644
index 0000000..4106ba6
--- /dev/null
+++ b/examples/CI-Eng-Sample/03_his_group_df.qli
@@ -0,0 +1,13 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! CI-Eng-Sample item storage group (Event/Item), CI Server R1.03.00
+! Group names are max 16 characters.
+@FIELDS
+NAME,DESCRIPTION,TYPE,COL_STOR_TYPE,LIFE_TIME,ROLLOVER_INT
+
+@HIS_GROUP_DF
+"CIENG_EVENT","CI-Eng-Sample event history","Item","Event/Item","1 weeks","1 days"
diff --git a/examples/CI-Eng-Sample/04_item_his_df.qli b/examples/CI-Eng-Sample/04_item_his_df.qli
new file mode 100644
index 0000000..6372e47
--- /dev/null
+++ b/examples/CI-Eng-Sample/04_item_his_df.qli
@@ -0,0 +1,13 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! CI-Eng-Sample items in storage groups, CI Server R1.03.00
+@FIELDS
+NAME,ITEM_NAME,GROUP_NAME,ON_VALUE_CHANGE,ON_STATUS_CHANGE
+
+@ITEM_HIS_DF
+"CIENG_EVENT:CI-Eng-Sample.TANK1.LEVEL","CI-Eng-Sample.TANK1.LEVEL","CIENG_EVENT",1,1
+"CIENG_EVENT:CI-Eng-Sample.TANK1.INFLOW","CI-Eng-Sample.TANK1.INFLOW","CIENG_EVENT",1,1
diff --git a/examples/CI-Eng-Sample/89_remove_item_his_df.qli b/examples/CI-Eng-Sample/89_remove_item_his_df.qli
new file mode 100644
index 0000000..8ef5abb
--- /dev/null
+++ b/examples/CI-Eng-Sample/89_remove_item_his_df.qli
@@ -0,0 +1,13 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! Remove CI-Eng-Sample items from storage groups
+@FIELDS
+NAME
+
+@ITEM_HIS_DF
+"CIENG_EVENT:CI-Eng-Sample.TANK1.LEVEL"
+"CIENG_EVENT:CI-Eng-Sample.TANK1.INFLOW"
diff --git a/examples/CI-Eng-Sample/90_remove_his_group_df.qli b/examples/CI-Eng-Sample/90_remove_his_group_df.qli
new file mode 100644
index 0000000..4c205ab
--- /dev/null
+++ b/examples/CI-Eng-Sample/90_remove_his_group_df.qli
@@ -0,0 +1,12 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! Remove CI-Eng-Sample storage group (deletes its history)
+@FIELDS
+NAME
+
+@HIS_GROUP_DF
+"CIENG_EVENT"
diff --git a/examples/CI-Eng-Sample/91_remove_item_df.qli b/examples/CI-Eng-Sample/91_remove_item_df.qli
new file mode 100644
index 0000000..2b6a535
--- /dev/null
+++ b/examples/CI-Eng-Sample/91_remove_item_df.qli
@@ -0,0 +1,19 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! Remove CI-Eng-Sample items
+@FIELDS
+NAME
+
+@ITEM_DF
+"CI-Eng-Sample.TANK1.LEVEL"
+"CI-Eng-Sample.TANK1.INFLOW"
+"CI-Eng-Sample.PUMP1.RUNNING"
+"CI-Eng-Sample.PUMP1.MODE"
+"CI-Eng-Sample.SYSTEM.CPU_LOAD"
+"CI-Eng-Sample.SYSTEM.DISK_C"
+"CI-Eng-Sample.SYSTEM.PING_LOCALHOST"
+"CI-Eng-Sample.SYSTEM.PROC_ALM"
diff --git a/examples/CI-Eng-Sample/92_remove_section_df.qli b/examples/CI-Eng-Sample/92_remove_section_df.qli
new file mode 100644
index 0000000..3926c72
--- /dev/null
+++ b/examples/CI-Eng-Sample/92_remove_section_df.qli
@@ -0,0 +1,15 @@
+@LANGUAGE
+ENGLISH
+
+@VERSION
+1.03.00
+
+! Remove CI-Eng-Sample sections (children first)
+@FIELDS
+NAME
+
+@SECTION_DF
+"CI-Eng-Sample.TANK1"
+"CI-Eng-Sample.PUMP1"
+"CI-Eng-Sample.SYSTEM"
+"CI-Eng-Sample"
diff --git a/examples/CI-Eng-Sample/README.md b/examples/CI-Eng-Sample/README.md
index 5102468..4f84fd8 100644
--- a/examples/CI-Eng-Sample/README.md
+++ b/examples/CI-Eng-Sample/README.md
@@ -1,36 +1,82 @@
-# CI-Eng-Sample (placeholder)
-
-**Status: planned, not built yet.** Nothing in this folder can be imported yet.
+# CI-Eng-Sample
 
 A small, invented sample project that anyone with this repo can load into a CI Server
-**R1.03** test system. Skills use it for their examples, and every skill task can be practiced
-and verified against the same known items on any machine.
+**R1.03** test system. Skills use its names in their examples, and every skill task is
+re-tested against it so that no other project is needed.
 
-## Planned contents
+Built and tested on CI Server R1.03.00 (unlicensed test system), 2026-09-30.
 
-Built up phase by phase (see `knowledge/progress.md`):
+## Load and remove
 
-| Phase | Adds |
-|---|---|
-| 5 Items and acquisition | Top-level section, sub-sections, template items, internal items (no PLC needed), items with alarm limits |
-| 6 Classes and objects | A class and objects created from it |
-| 8 Alarms | Alarm settings on sample items |
-| 9 History | An item storage group |
-| 10 Graphics | A display and symbol |
-| 11 Reporting | A report |
+Test systems only: loading writes to the CI Server database. CI Server must be running.
+From an elevated prompt, call the scripts by full path (a bare `load.cmd` may not be found
+from the current folder):
 
-## Planned files
+```
+cmd /c "<repo>\examples\CI-Eng-Sample\load.cmd"
+cmd /c "<repo>\examples\CI-Eng-Sample\remove.cmd"
+```
+
+- Each step prints a summary and writes a `.qlo` listing; check that `Errors` is 0.
+- **Restart CI Server after loading** (stop, then start the CI Service): a new storage group
+  stores no history until CI Server restarts.
+- `load.cmd` on a system that already has the project reports `Exists` and changes nothing.
+- `remove.cmd` takes about 1½ minutes: a storage group can only be deleted after its stop time
+  has passed, so the script sets a stop time one minute ahead and waits. Removing the group
+  also deletes its history.
+
+## Current contents
+
+| Name | Kind | Details |
+|---|---|---|
+| `CI-Eng-Sample` | Section | Top level |
+| `CI-Eng-Sample.TANK1`, `.PUMP1`, `.SYSTEM` | Sections | Tank, pump, system monitoring |
+| `CI-Eng-Sample.TANK1.LEVEL` | Item, Real | %, format `999.9`, limits LL 10 / L 20 / H 80 / HH 90, scale 0–100 (alarming off), stored in `CIENG_EVENT` |
+| `CI-Eng-Sample.TANK1.INFLOW` | Item, Real | m3/h, format `9999.9`, scale 0–500, stored in `CIENG_EVENT` |
+| `CI-Eng-Sample.PUMP1.RUNNING` | Item, Boolean | |
+| `CI-Eng-Sample.PUMP1.MODE` | Item, Integer | 0 manual, 1 auto |
+| `CI-Eng-Sample.SYSTEM.CPU_LOAD` | Item, Real | Target for `intcpumon` |
+| `CI-Eng-Sample.SYSTEM.DISK_C` | Item, Real | Target for `intdskmon` (reports **used** %) |
+| `CI-Eng-Sample.SYSTEM.PING_LOCALHOST` | Item, Integer | Target for `inttcpmon` (1 = reachable) |
+| `CI-Eng-Sample.SYSTEM.PROC_ALM` | Item, Integer | Target for `intmon` (1 = `alm` process running) |
+| `CIENG_EVENT` | Item storage group | Event/Item, lifetime 1 week, rollover 1 day |
+
+All items are internal (no station), so the project works without any PLC or simulator.
+New items start with status 13 (`NOT INIT`) until a value is written.
+
+## Files
 
 | File | Purpose |
 |---|---|
-| `*.qli` | `dssqld` data files, one per dataset |
-| `load.cmd` | Imports the data files in dependency order: template items → classes (compiled) → objects → remaining items (IM 36K10J10 §5.6) |
-| `remove.cmd` | Removes the sample project from a system |
+| `01_section_df.qli` | Sections (`SECTION_DF`); parents before children |
+| `02_item_df.qli` | Items (`ITEM_DF`) |
+| `03_his_group_df.qli` | Item storage group (`HIS_GROUP_DF`) |
+| `04_item_his_df.qli` | Items in the storage group (`ITEM_HIS_DF`, name `<group>:<item>`) |
+| `89_`…`92_remove_*.qli` | Names to delete, in reverse order |
+| `load.cmd`, `remove.cmd` | Run the steps in the right order |
+| `monitoring/*.sup.txt` | Setup-file lines for the monitoring processes (not applied by `load.cmd`) |
+
+## Monitoring processes (optional)
+
+`monitoring/` holds the lines to add to the setup files in `%TLS_ROOT_PATH%\tls\sup\` so that
+`intcpumon`, `intdskmon`, `inttcpmon`, `intmon` and `intspawn` write into the `SYSTEM` items.
+These change the system's own setup files: back the files up first and restore them after
+testing. See the `system-management` skill, task `monitoring-processes.md`.
+
+## Planned additions
+
+| Phase | Adds |
+|---|---|
+| 6 | Template items, a class and objects |
+| 8 | Alarm settings on sample items |
+| 9 | More storage groups (scan/time, aggregation) |
+| 10 | A display and symbol |
+| 11 | A report |
 
 ## Rules
 
-- Test systems only. Loading writes to the CI Server database.
-- Invented names only; no real plant or customer data.
-- The top-level section name is still to be decided. Item names may not allow `-`, so it may
-  differ from the folder name (to be checked in phase 5).
+- Test systems only; invented names only, no real plant or customer data.
+- Keep the load order: sections → template items → classes (compiled) → objects → other
+  items → storage groups → items in storage groups (IM 36K10J10 §5.6). Keep `remove.cmd` in
+  reverse order.
 - Every file notes the CI Server version it was built and tested on.
diff --git a/examples/CI-Eng-Sample/load.cmd b/examples/CI-Eng-Sample/load.cmd
new file mode 100644
index 0000000..8858023
--- /dev/null
+++ b/examples/CI-Eng-Sample/load.cmd
@@ -0,0 +1,12 @@
+@echo off
+rem Load CI-Eng-Sample into a CI Server R1.03 TEST system.
+rem Run in an elevated prompt while CI Server is running; call this script by full path.
+rem Results go to *.qlo listing files; check that Errors = 0.
+rem Restart CI Server afterwards: new storage groups only start storing after a restart.
+cd /d "%~dp0"
+dssqld -i 01_section_df.qli -l 01_section_df.qlo
+dssqld -i 02_item_df.qli -l 02_item_df.qlo
+dssqld -i 03_his_group_df.qli -l 03_his_group_df.qlo
+rem Short pause: linking items straight after creating the group failed once.
+powershell -NoProfile -Command "Start-Sleep -Seconds 5"
+dssqld -i 04_item_his_df.qli -l 04_item_his_df.qlo
diff --git a/examples/CI-Eng-Sample/monitoring/intcpumon.sup.txt b/examples/CI-Eng-Sample/monitoring/intcpumon.sup.txt
new file mode 100644
index 0000000..5914531
--- /dev/null
+++ b/examples/CI-Eng-Sample/monitoring/intcpumon.sup.txt
@@ -0,0 +1,5 @@
+! Add to %TLS_ROOT_PATH%\tls\sup\intcpumon.sup (CI Server R1.03.00, tested 2026-09-30)
+! CPU = <system name>, <item>, <counter>; empty system = this machine, empty counter = total CPU %
+interval = 10
+logging
+CPU = "", "CI-Eng-Sample.SYSTEM.CPU_LOAD", ""
diff --git a/examples/CI-Eng-Sample/monitoring/intdskmon.sup.txt b/examples/CI-Eng-Sample/monitoring/intdskmon.sup.txt
new file mode 100644
index 0000000..8a39b2f
--- /dev/null
+++ b/examples/CI-Eng-Sample/monitoring/intdskmon.sup.txt
@@ -0,0 +1,5 @@
+! Add to %TLS_ROOT_PATH%\tls\sup\intdskmon.sup (CI Server R1.03.00, tested 2026-09-30)
+! DISK = <disk>, <item>. The item receives the USED percentage of the disk.
+interval = 10
+logging
+DISK = "C:\\", "CI-Eng-Sample.SYSTEM.DISK_C"
diff --git a/examples/CI-Eng-Sample/monitoring/intmon.sup.txt b/examples/CI-Eng-Sample/monitoring/intmon.sup.txt
new file mode 100644
index 0000000..1c38029
--- /dev/null
+++ b/examples/CI-Eng-Sample/monitoring/intmon.sup.txt
@@ -0,0 +1,3 @@
+! Add to %TLS_ROOT_PATH%\tls\sup\intmon.sup (CI Server R1.03.00, tested 2026-09-30)
+! process = <process name>, <item>. Item = 1 while the process runs.
+process = "alm", "CI-Eng-Sample.SYSTEM.PROC_ALM"
diff --git a/examples/CI-Eng-Sample/monitoring/intspawn.sup.txt b/examples/CI-Eng-Sample/monitoring/intspawn.sup.txt
new file mode 100644
index 0000000..9b5c192
--- /dev/null
+++ b/examples/CI-Eng-Sample/monitoring/intspawn.sup.txt
@@ -0,0 +1,6 @@
+! Add to %TLS_ROOT_PATH%\tls\sup\intspawn.sup (CI Server R1.03.00, tested 2026-09-30)
+! TRIGGER = <command>, <item>, <VALUE|STATUS|OPTION|TIMER|NODE_DOWN|NODE_UP|NODE>, <NONE|EQUAL|GREATER|LESS>, <value>
+! The new value is passed to the command as its argument. Keep the command path SHORT:
+! a ~130-character path silently did nothing; C:\Claude\spawn_test.cmd worked.
+! Example command file (spawn_test.cmd):  @echo %* >> "C:\Temp\spawn_out.txt"
+TRIGGER = "C:\Temp\spawn_test.cmd", "CI-Eng-Sample.PUMP1.MODE", VALUE, NONE, 0
diff --git a/examples/CI-Eng-Sample/monitoring/inttcpmon.sup.txt b/examples/CI-Eng-Sample/monitoring/inttcpmon.sup.txt
new file mode 100644
index 0000000..b6896d1
--- /dev/null
+++ b/examples/CI-Eng-Sample/monitoring/inttcpmon.sup.txt
@@ -0,0 +1,4 @@
+! Add to %TLS_ROOT_PATH%\tls\sup\inttcpmon.sup (CI Server R1.03.00, tested 2026-09-30)
+! TCP = <host>, <item>. Item = 1 while the host answers a ping.
+logging
+TCP = "localhost", "CI-Eng-Sample.SYSTEM.PING_LOCALHOST"
diff --git a/examples/CI-Eng-Sample/remove.cmd b/examples/CI-Eng-Sample/remove.cmd
new file mode 100644
index 0000000..a55bc04
--- /dev/null
+++ b/examples/CI-Eng-Sample/remove.cmd
@@ -0,0 +1,16 @@
+@echo off
+rem Remove CI-Eng-Sample from a CI Server R1.03 TEST system (also deletes its history).
+rem Run in an elevated prompt while CI Server is running; call this script by full path.
+rem Order: storage links, stop + delete storage group, items, sections (children first).
+rem A storage group with an active unit cannot be deleted (HIS-E-GROUPHASUNT), so the
+rem group first gets a stop time one minute ahead; the script waits until it has passed.
+cd /d "%~dp0"
+dssqld -r 89_remove_item_his_df.qli -l 89_remove_item_his_df.qlo
+powershell -NoProfile -Command "$t=(Get-Date).AddMinutes(1).ToString('dd-MM-yyyy HH:mm:ss'); \"@LANGUAGE`r`nENGLISH`r`n`r`n@VERSION`r`n1.03.00`r`n`r`n@FIELDS`r`nNAME,STOP_TIME`r`n`r`n@HIS_GROUP_DF`r`n\"\"CIENG_EVENT\"\",\"\"$t\"\"`r`n\" | Set-Content -Encoding ascii 90a_stop_his_group_df.qli"
+dssqld -m 90a_stop_his_group_df.qli -l 90a_stop_his_group_df.qlo
+echo Waiting 75 seconds for the storage group stop time to pass...
+powershell -NoProfile -Command "Start-Sleep -Seconds 75"
+dssqld -r 90_remove_his_group_df.qli -l 90_remove_his_group_df.qlo
+dssqld -r 91_remove_item_df.qli -l 91_remove_item_df.qlo
+dssqld -r 92_remove_section_df.qli -l 92_remove_section_df.qlo
+del 90a_stop_his_group_df.qli
diff --git a/knowledge/issues.md b/knowledge/issues.md
index 5f2b142..0569406 100644
--- a/knowledge/issues.md
+++ b/knowledge/issues.md
@@ -19,7 +19,10 @@ development system (see "Test system" in `progress.md`); they do not exist on ot
 
 | ID | Date | Area | Issue | Status | Next step / resolution | Update on close |
 |---|---|---|---|---|---|---|
-| ISS-001 | 2026-09-30 | ITEM (`itmval`) | Writing an item with `itmval -p -n AID.WRPS.SIM.INFLOW -v 400` added the `uoff` option flag (options 0x…8a → 0x…8e). The flag stayed after writing the original value back. Meaning of `uoff` unknown; not found in the EN manuals by text search. | open | Find what `uoff` means and how to clear it (ITEM Service IM 36K10L35/L36, Engineering Module I/O Processes IM 36K10C10). Until then, `itmval -p` stays "awaiting confirmation". | Create `.claude/skills/system-management/tasks/read-write-item.md` (with the `uoff` explanation) and add it to that skill's `SKILL.md` task table; `knowledge/progress.md` row "Write an item with `itmval -p`" |
-| ISS-002 | 2026-09-30 | DATABASE (`dsschk`) | `dsschk -d ITEM_DF -v` (check only) exits 0 with no console output and nothing new in `umhlog.log`. Where results are reported is unknown. | open | Revisit with the Data Access / Data Set Service manuals; try without `-d`, or with `-e`. | Create `.claude/skills/system-management/tasks/consistency-check.md` and add it to that skill's `SKILL.md`; `knowledge/manuals/IM36K10J10-01EN.md` §4.1.1 consistency tools (add where output goes); `knowledge/progress.md` row "Consistency check" |
-| ISS-003 | 2026-09-30 | DATABASE (`dssqld`) | Filtered export (`dssqld -e <out> <filter>.qli`) failed with a guessed filter syntax (`@ITEM_DF`, `@FIELD`, `@SELECT`). | open | Get the exact filter-file syntax from the Data Set Service manuals (IM 36K10L50 / P30). | `.claude/skills/system-management/tasks/export-dataset.md` section "Filtered exports"; `knowledge/manuals/IM36K10J10-01EN.md` §5.6 step 1; `knowledge/progress.md` row "Export a dataset" |
-| ISS-004 | 2026-09-30 | ITEM (`itmval`) | `itmval -g -a <1..5>` returns `ITM-E-WRONG_ATT` on `AID.WRPS.*` items, so reading limits is unproven. | open | Retry on an item that has alarm limits configured (phase 8, alarms). | `.claude/skills/system-management/tasks/read-write-item.md` (limits section); `knowledge/progress.md` row "Read an item with `itmval -g`" |
+| ISS-001 | 2026-09-30 | ITEM (`itmval`) | Writing an item with `itmval -p -n AID.WRPS.SIM.INFLOW -v 400` added the `uoff` option flag (options 0x…8a → 0x…8e). The flag stayed after writing the original value back. Meaning of `uoff` unknown; not found in the EN manuals by text search. | open | 2026-09-30: writing internal sample items (`CI-Eng-Sample.*`, no station) does **not** set `uoff` (options stay 0x…88), so it is tied to station-connected items (the AID item was already `off`, its station not communicating). Still to find: meaning and how to clear it (ITEM Service IM 36K10L35/L36, Engineering Module I/O Processes IM 36K10C10). Revisit in phase 5 with a station item. | `.claude/skills/system-management/tasks/read-write-item.md` (replace the `uoff` note under "Read the current value"); `knowledge/progress.md` row "Write an item with `itmval -p`" |
+| ISS-002 | 2026-09-30 | DATABASE (`dsschk`) | `dsschk -d ITEM_DF -v` (check only) exits 0 with no console output and nothing new in `umhlog.log`. Where results are reported is unknown. | closed | Closed 2026-09-30 (confirmed by user). 2026-09-30: `dsschk -e -v` prints a start/end line per dataset (228 checked, no problems) and logs to `umhlog.log`. Plain `dsschk` only compares copies between nodes, so it prints nothing on a single-node system. `ismchk` needs a database file name (usage: `ismchk data_base_name`), not run yet. | Create `.claude/skills/system-management/tasks/consistency-check.md` and add it to that skill's `SKILL.md`; `knowledge/manuals/IM36K10J10-01EN.md` §4.1.1 consistency tools (add where output goes); `knowledge/progress.md` row "Consistency check" |
+| ISS-003 | 2026-09-30 | DATABASE (`dssqld`) | Filtered export (`dssqld -e <out> <filter>.qli`) failed with a guessed filter syntax (`@ITEM_DF`, `@FIELD`, `@SELECT`). | closed | Closed 2026-09-30 (confirmed by user). 2026-09-30: the quick load **data** format is now known and verified (`@LANGUAGE`, `@VERSION`, `@FIELDS`, `@<DATASET>`, quoted CSV records, `\` continuation, `!` comments; IM 36K10L45 §9.11). Filter syntax found (IM 36K10L50 §3.6) and practiced, awaiting confirmation: a file with `@SELECT`, then the filter in single quotes (strings in double quotes), then `@<DATASET>`; run `dssqld -e <out> <filter>.qli`. `ITEM_HISTORY` returns nothing unless the filter names `ITEM_NAME` and a `SAMPLE_TIME` range (`SAMPLE_TIME > "dd-mm-yyyy hh:mm:ss" and SAMPLE_TIME < ...`). | `.claude/skills/system-management/tasks/export-dataset.md` section "Filtered exports"; `knowledge/manuals/IM36K10J10-01EN.md` §5.6 step 1; `knowledge/progress.md` row "Export a dataset" |
+| ISS-004 | 2026-09-30 | ITEM (`itmval`) | `itmval -g -a <1..5>` returns `ITM-E-WRONG_ATT` on `AID.WRPS.*` items, so reading limits is unproven. | closed | Closed 2026-09-30 (confirmed by user). On `CI-Eng-Sample.TANK1.LEVEL` (limits set) `-a 1..5` returned deadband 0, low 20, high 80, low-low 10, high-high 90. The error only occurs on items without limits. | `.claude/skills/system-management/tasks/read-write-item.md` (limits section); `knowledge/progress.md` row "Read an item with `itmval -g`" |
+| ISS-005 | 2026-09-30 | DATABASE (`dssqld`) | Loading `04_item_his_df.qli` straight after creating the storage group gave 2 errors once; three other runs were clean. Error text not captured. | open | Added a 5 s pause in `load.cmd`. If it happens again, capture `04_item_his_df.qlo`. | `examples/CI-Eng-Sample/load.cmd`; `.claude/skills/system-management/tasks/load-remove-records.md` |
+| ISS-006 | 2026-09-30 | HISTORY (`ithloahis`) | Samples dated before the start of the current storage unit were not stored (no error shown); samples after it were. Also, a new storage group stored nothing until CI Server was restarted. | open | Confirm with History Management (IM 36K10L20) in phase 9: how to load into older units, and whether a restart is really required. | `.claude/skills/system-management/tasks/load-history.md`; `examples/CI-Eng-Sample/README.md`; `knowledge/manuals/IM36K10J10-01EN.md` command-line tools |
+| ISS-007 | 2026-09-30 | INTEGRATION (monitoring) | `intdskmon` wrote 61.9 for a C: drive that is 61.9 % used / 38.1 % free, although the manual says it monitors the disk free space rate. `intspawn` did nothing when the command path was ~130 characters; a short path worked (limit unknown). | open | Confirm the disk value meaning and the path limit. | `.claude/skills/system-management/tasks/monitoring-processes.md`; `knowledge/manuals/IM36K10J10-01EN.md` §4.1.6; `examples/CI-Eng-Sample/monitoring/` |
diff --git a/knowledge/manuals/IM36K10J10-01EN.md b/knowledge/manuals/IM36K10J10-01EN.md
index 42802ce..7721c14 100644
--- a/knowledge/manuals/IM36K10J10-01EN.md
+++ b/knowledge/manuals/IM36K10J10-01EN.md
@@ -176,6 +176,8 @@ owns its design.
 - Consistency tools: `ismchk <file>` / `ismkfr [-c] [-r] [-s] [-d] <file>` for ISAM files;
   `dsschk [-d <dataset>] [-n <node>] [-e] [-r] [-v]` for replicated/duplicated datasets.
   Repair: repeat `dsschk -r` until clean, then `dsschk -e`, then `dsschk -e -r` (maybe twice).
+  *Verified 2026-09-30:* on a single node plain `dsschk` prints nothing (it compares nodes);
+  use `dsschk -e -v`, which lists every dataset checked and also logs to `umhlog.log`.
 - Disaster recovery: restore system backup (or reinstall OS + CI Server + patches) → restore
   `tls` configuration and database → verify.
 - Retrieve archived history from the Engineering module (you can set its lifetime).
@@ -248,8 +250,9 @@ usability), administrator tasks (backup, accounts, monitoring), performance and
   `opcdbg` (PROCESS); `almdbg` (ALARM); `eqpdbg` (EQUIPMENT).
 
 **Migration (5.6)**, e.g. from a demo-license system to the target system
-1. Export master datasets with `dssqld -e`, using `.qli` filter files (`@<DATASET>`,
-   `@FIELD`, `@SELECT`) where needed: `AUTH_GROUP_DF`, `USER_DF`, `PRINTER_*_DF`,
+1. Export master datasets with `dssqld -e`, using `.qli` filter files where needed
+   (`@SELECT`, the filter in single quotes, then `@<DATASET>`; optionally `@FIELDS`; verified
+   2026-09-30, see skill `system-management` task `export-dataset.md`): `AUTH_GROUP_DF`, `USER_DF`, `PRINTER_*_DF`,
    `STATUS_DF`, `ALARM_ACK_DF`, `ALARM_AOI_DF`, communication `*_LINE_DF` / `*_STATION_DF` /
    `*_POINT_DF`, `INSTALL_DF`, `UNIT_DF`, `ITEM_DF`, `HIS_GROUP_DF` (item storage groups
    only), `CLASS_DF`, `OBJECT_DF`, `REPORT_DF`. Drop fields removed in the new release.
diff --git a/knowledge/progress.md b/knowledge/progress.md
index eccb977..b2c8c6b 100644
--- a/knowledge/progress.md
+++ b/knowledge/progress.md
@@ -4,6 +4,11 @@ Status of each manual and each practiced task. Update this file as work proceeds
 
 **Manual status:** not started · summarized · in practice · done
 **Task status:** not practiced · practiced, awaiting confirmation · passed · not completed (see notes)
+**Sample column:** whether the task has been re-tested on **CI-Eng-Sample**:
+n/a (needs no project data) · pending (tested on AID only) · added (sample content built) · passed
+
+A task is **done** only when Status is *passed* and Sample is *passed* or *n/a*. Then AID is no
+longer needed to repeat it.
 
 ## Test system
 
@@ -16,15 +21,16 @@ with this repo:
   was tested, not names to use elsewhere.
 - Communication stations seen there (`WRPS_PLC`, `MODSIM_STATION`, `STN_MQTT`) belong to AID.
 
-Shared, repeatable practice will use the sample project **CI-Eng-Sample**
-(`examples/CI-Eng-Sample/`) once it exists.
+Tasks may be practiced first on AID, but everything they need is then added to the sample
+project **CI-Eng-Sample** (`examples/CI-Eng-Sample/`) and re-tested there, so that in the end
+AID is not needed.
 
 ## Manuals, in working order
 
 | Phase | Manual | Title | Status |
 |---|---|---|---|
 | 0 | IM 36K01A50 | Release Information | summarized ([notes](manuals/IM36K01A50-01EN.md)) |
-| 1 | IM 36K10J10 | System Design/Management | in practice, skill `system-management` ([notes](manuals/IM36K10J10-01EN.md)) |
+| 1 | IM 36K10J10 | System Design/Management | done except migration (phase 6) and debugging tools; skill `system-management` ([notes](manuals/IM36K10J10-01EN.md)) |
 | 2 | IM 36K01C10 | CI Server Setup | not started |
 | 2 | IM 36K01C30 | Security Guide | not started |
 | 3 | IM 36K10G10 | Tutorial | not started |
@@ -68,19 +74,19 @@ now come before classes and objects (phase 6), and the other interfaces follow a
 
 ## Tasks
 
-| Manual | Task | Status | Notes |
-|---|---|---|---|
-| J10 | System check: version, paths, running state, time sync ([skill](../.claude/skills/system-check/SKILL.md)) | passed | Started CI Service elevated; live version R1.03.00; node UNLICENCED (expected). |
-| J10 | Time sync check / configuration (`w32tm`, `durutl.sup`) | not practiced | Check only on this system; no Vnet/IP. |
-| J10 | Export a dataset with `dssqld` ([task](../.claude/skills/system-management/tasks/export-dataset.md)) | passed | Filter-file syntax: [ISS-003](issues.md). |
-| J10 | Import / update a dataset with `dssqld` | not practiced | Writes to the database; ask first. |
-| J10 | Read an item with `itmval -g` | passed | Read `AID.WRPS.*` items. `-a 1..5` gave `ITM-E-WRONG_ATT` on an item without limits: [ISS-004](issues.md). |
-| J10 | Write an item with `itmval -p` | practiced, awaiting confirmation | `AID.WRPS.SIM.INFLOW` 419.76 → 400 → 419.76. After the first write the item's options gained the `uoff` flag (0x8a → 0x8e), which stays after restoring the value. See [ISS-001](issues.md). |
-| J10 | Read the message log (`tls\log\umhlog.log`) | passed | |
-| J10 | Per-component version list (`tls\lst\tls_versions.lst`) | passed | |
-| J10 | Load history from CSV with `ithloahis` | not practiced | Needs an item storage group. |
-| J10 | Consistency check (`dsschk`, `ismchk`) | not completed | `dsschk -d ITEM_DF -v` exits 0 with no output and nothing new in the message log; See [ISS-002](issues.md). |
-| J10 | Monitoring processes (`intmon`, `intcpumon`, `intdskmon`, `inttcpmon`, `intspawn`) | not practiced | Needs items to report into; better after phase 5. |
-| J10 | Backup of `tls` folders | not practiced | Plan only; the actual backup tool is site-specific. |
-| J10 | Migration between systems (§5.6) | not practiced | Needs engineered data; revisit after phase 6. |
-| J10 | Tuning and debugging (setup files, `*_debug` launchers, debuggers) | not practiced | |
+| Manual | Task | Status | Sample | Notes |
+|---|---|---|---|---|
+| J10 | System check: version, paths, running state, time sync ([skill](../.claude/skills/system-check/SKILL.md)) | passed | n/a | Started CI Service elevated; live version R1.03.00; node UNLICENCED (expected). |
+| J10 | Time sync check (`w32tm`); DURUTL configuration (`durutl.sup`) | passed (check); configuration not practiced | n/a | `w32tm` check verified in system-check. `durutl.sup` has no active settings (single node, not a time master); configuring DURUTL needs a second node, so not practiced. |
+| J10 | Export a dataset with `dssqld` ([task](../.claude/skills/system-management/tasks/export-dataset.md)) | passed | n/a | Filtered export (`@SELECT`) passed ([ISS-003](issues.md), closed). |
+| J10 | Import and delete dataset records with `dssqld` (`-i`, `-r`) ([task](../.claude/skills/system-management/tasks/load-remove-records.md)) | passed | passed | Built CI-Eng-Sample: 3 sections + 4 items imported, removed and re-imported with 0 errors. 2026-09-30 later: `-m` (update, used to set a storage group stop time) and loading/removing storage groups passed; see [ISS-005](issues.md). |
+| J10 | Read an item with `itmval -g` ([task](../.claude/skills/system-management/tasks/read-write-item.md)) | passed | passed | Read `AID.WRPS.*` items. `-a 1..5` gave `ITM-E-WRONG_ATT` on an item without limits; works on items with limits ([ISS-004](issues.md), closed). |
+| J10 | Write an item with `itmval -p` ([task](../.claude/skills/system-management/tasks/read-write-item.md)) | passed | passed | Sample: `TANK1.INFLOW` 120.5 then 130 with `-s 9`, `PUMP1.RUNNING` 1 (status 5 BOOLEAN 1); no `uoff` flag. AID: `AID.WRPS.SIM.INFLOW` 419.76 → 400 → 419.76. After the first write the item's options gained the `uoff` flag (0x8a → 0x8e), which stays after restoring the value. See [ISS-001](issues.md). |
+| J10 | Read the message log (`tls\log\umhlog.log`) | passed | n/a | |
+| J10 | Per-component version list (`tls\lst\tls_versions.lst`) | passed | n/a | |
+| J10 | Load history from CSV with `ithloahis`; read history back with `dssqld` ([task](../.claude/skills/system-management/tasks/load-history.md)) | passed | passed | Sample storage group `CIENG_EVENT` (Event/Item). SCAN file (LEVEL 61–63, INFLOW 101–103) and EVENT file (LEVEL 47, 48) stored and read back via `ITEM_HISTORY`. New groups need a CI Server restart before they store; samples dated before the current storage unit were not stored ([ISS-006](issues.md)). |
+| J10 | Consistency check (`dsschk`, `ismchk`) ([task](../.claude/skills/system-management/tasks/consistency-check.md)) | passed (check); repair and `ismchk` not practiced | n/a | `dsschk -e -v` (check only) reports each of 228 datasets, no problems. Plain `dsschk` prints nothing on a single node. `ismchk` needs a database file name; not run ([ISS-002](issues.md), closed). |
+| J10 | Monitoring processes (`intmon`, `intcpumon`, `intdskmon`, `inttcpmon`, `intspawn`) ([task](../.claude/skills/system-management/tasks/monitoring-processes.md)) | passed | passed | All five worked into `CI-Eng-Sample.SYSTEM.*` / `PUMP1.MODE`, started by hand with `<exe> -n <name>`; setup files restored afterwards. `intdskmon` reports **used** %; `intspawn` command path must be short ([ISS-007](issues.md)). |
+| J10 | Backup of `tls` folders | not practiced | n/a | Plan only; the actual backup tool is site-specific. |
+| J10 | Migration between systems (§5.6) | not practiced | pending | Needs engineered data; revisit after phase 6. |
+| J10 | Tuning checks (read-only) ([task](../.claude/skills/system-management/tasks/tuning-checks.md)) | passed | n/a | Read `dur.sup` (max processes 250), `itm.sup` (item pool 650,000 KB) and the automatic health snapshots `tls\log\smd_*.log` (common memory free, queue use per process, lock collisions). Debug launchers and interactive debuggers not practiced. |